How do you get a PhD in fluid mechanics?

[@mastershooter64]

"You can't do abstract math for no reason anymore" Every single mathematician working on pure mathematics: *BRUH*

[@evelynbrylow3624]

^^

[@yeetyeet7070]

this is so sad

[@MrNicoJac]

I've heard the same from a PhD in cancer research. Which seems logical at first glance. I mean, cancer is bad, so you need a cure, right? But then he tells you how fundamentally understanding **exactly** how all sorts of cell processes work and how they interact **might** just prove **vital** to understanding or imagining new types of medication, and you start to realize.... One of the biggest scientific breakthroughs was penicillin. And we found out because a 'sloppy' researcher was just mucking around a bit out of curiosity. The practical applications remain out of reach if we never make fundamental leaps anymore. And so maybe it's not so bad to, instead of always working to some specific goal, to spend a few million in taxes per year on some quirky profs doing weird shit, just to see what happens - they just may stumble onto something new.

[@HilbertXVI]

Yeah you wouldn't have half the mathematical tools used in physics rn if it wasn't for developments in pure math

[@mastershooter64]

@@HilbertXVI lol ikr it's so crucial for literally everything

[@AndrewDotsonvideos]

Now THIS is podracing

[@masternobody1896]

yep

[@masternobody1896]

feels good to becoming the next Einstein

[@nadavperry2267]

LOL I was getting more of a highschool exam physics question vibe

[@alexv5581]

@@nadavperry2267 Ok smart guy, then explain to me the physical meaning of N-S equation and the origin on how its derived. I will not let you insult the hard work of others, being in a graduate school program is not easy. You are the typical person who believes that because you have some knowledge you get the illusion you know all. Also tell me what are you doing right now professionally ? That way we can criticize you just like you do others, you know just to be fair.

[@nadavperry2267]

@@alexv5581 I meant Simon crashing his bike lol . I have the utmost respect for kat as a person and her research

[@yanononopon]

So interesting, I'm starting my PhD in fluid dynamics in January, love this video :)

[@xadian101]

Good luck! :D

[@yanononopon]

@@xadian101 thank you!

[@nicomagrini7087]

What a horrendous username 😅

[@yanononopon]

@@nicomagrini7087 Yes but there's a funny story behind it

[@nicomagrini7087]

If you wanna share 😉

[@Rjkilcoyne1994]

What Kat was saying about the pipeline drop off of women in academia is the topic of the research I am doing currently :D if I ever get it finished and published I would love for you guys to read it!

[@hypergraphic]

I wonder how much is nature and how much is nurture. Even in more egalitarian societies you still see a disparity, so I doubt it will ever be 50/50 in anything. That said, 5-10 percent is ridiculous and sounds like a social problem.

[@Rjkilcoyne1994]

I mean a big problem is that so much of our perceptions of what is naturally masculine and feminine roles are not really natural at all and have developed with our ever changing societies, civilisations and technologies. I think an interesting question from Hannah Witton was how much of our gendered identity is actually to do with our gene presentation related to sex (as in male/ female) and how much is to with social norms and interactions with our environment. Most psychological academic hierarchies, despite being mostly female dominated in undergraduate, higher positions are mostly filled by men, a statistic which I believe is slowly changing because of wonderful and passionate academics like Kat. What I mean is its not only a problem of it being 50/50 representation, as the overall split of people in the department would be more female, but that the representation goes all the way up the hierarchy and the decision makers at the top are representative of the lower echelons. It's a very interesting topic and I am very glad to be able to study it, hopefully I didn't babble :)

[@dnomyarnostaw]

@@hypergraphic "sounds like a social problem." I have my doubts. My current female partner is a qualified Engineer, Astronomer and Physicist. ( 50+ yo) . She rings me to make sure she is mixing the oil/fuel mixture for her chainsaw EVERY couple of months!

[@luisangelgermaneumana4017]

Hey Simon! I recently moved from Mexico to Germany to study my master's, and re-watching your old PhD vlogs actually help a lot to not feel lonely in this academic path haha. These PhD stories are awesome as well, I hope you are going well man, cheers!

[@ProjectPhysX]

Ever since I first saw a drop just resting on the water surface in the bath tub as child, I'm fascinated by that effect. Pilot wave theory even more blew my mind in physics bachelors. I'm now finishing my PhD in computational fluid dynamics, simulating raindrop impacts. The fascination about the science never lets go of you.

[@scottrobinson4611]

This is a really cool series, Simon. Thanks for making it. I'm a first-year PhD in Astrophysics, only about 4 weeks in to my PhD. I've been following your videos for about 9 years now (since the Oxford days), and I can say that you definitely had an influence on my decision to undertake this PhD journey.

[@pritam9873]

Hows your phd going bruh? What are you aiming to do after your PhD? I have heard that you gonna have a difficult time for finding a job after phd! Can you plz clarify these doubts of mine 🙏

[@scottrobinson4611]

​@@pritam9873 It's going fine so far - Just learning how to start processing the data, and reading the relevant background literature. After the PhD, I currently have no plans. At this stage I'm unsure whether I'll want to continue down the path of a research career, or whether I'll be enticed by the promise of a 40-hour week, no need to relocate and an appealing salary. Finding a job after a Physics PhD is like shooting fish in a barrel. It's literally one of the most employable technical qualifications you can get. I'll have extensive experience in data analysis and statistics, as well as a wealth of knowledge of Physics and Mathematics. I will also have the experience of carrying out a 3+ year original research project almost entirely on my own. Anyone who has told you that finding a job is difficult after a Physics PhD (or any STEM PhD for that matter) is wrong.

[@clementesteban7046]

@@scottrobinson4611 So, how's it going two years later ?

[@MrSam2450]

This was great. Who knew there was more to maths than just maths

[@jagadishgospat2548]

Wait how is this comment 15 hrs ago?

[@SimonClark]

Patreon supporters get early access to videos!

[@Stratosarge]

I feel sort of vindicated as to help myself figure through math I've always imagined numbers as measures of fluids, combining them or splitting them as needed.

[@Darkknight512]

There is always more, math is one way of describing the universe, there is simply too much to describe in our universe.

[@janmelantu7490]

“Imagine if the atmosphere was viscous” truly a cursed thought

[@barborahalova3514]

This was epic to watch being a BSc Physics student just dipping (pun intended) my toes into fluid mechanics for a first time. Thank you both!

[@PeterReidUK]

Such a great video, and well articulated too for the layman amongst us. Great job Kat and Simon. Such a lovely story, the passion really shines through. P.S. Can you not make me cry with your videos please

[@idraote]

"You can't do abstract math for no reason anymore" This sounds so innocuous but it really isn't. There is something called pure research that doesn't really have immediate benefits but is really essential when thinking about the future. Good ideas don't rain out of the sky like droplets on a puddle.

[@snackreaper]

exactly, people like archimedes or aryabhata wouldn't have been able to come up with the value of pi or trigonometry respectively had they been asked to provide a use for their findings, today's world cannot function without these concepts but the ancient world had absolutely no use for them.

[@HilbertXVI]

Thank you

[@benjaminanderson-sackaney7335]

Does doing it for fun count as a reason?

[@Stroyer123]

Yea. The laser was created for no real reason. There used to be a joke that physicists are always looking for things to use lasers on. It's like the old saying "if all you have is a hammer, everything looks like a nail". As a nanophysics student mainly working with optical metamaterials, I find it funny how one of the most important tools in my field was just created for the fun of it.

[@jameslee3357]

As a PhD student its so interesting to see the research people in completely different fields are doing to. Looking forward to more of these soon!

[@douglaslloyd7917]

It was great bumping into you on campus! Really enjoying this series :))

[@almostthefool]

7.17 "the atmosphere is inviscid" *cries in turbulence* Another fascinating video though!

[@hiiamchloe]

Its great to see people in academia who understand why outreach is so important but also really enjoy doing it!

[@eggi4443]

she's such an inspiration to me. there are almost no girls in my physics classes and the "casual misogyny" that happens all the time can be tiring sometimes so this was really refreshing

[@DemetriPanici]

This is something that seems to be crazy hard to learn! I had never heard of fluid mechanics prior to this

[@ade9597]

it's a subset of thermodinamics, that's fun!

[@frictionless]

Computational Fluid Dynamics is even more complex.

[@monsterhunter834]

Watching this while doing my masters in fluid dynamics and starting my PhD next year.

[@audoldends6799]

I hope it's going well!

[@DrWillWood]

Very interesting! She's going to smash that PhD out the park. In my 2nd year I was still running around screaming what the heck am I meant to be doing!

[@prachichoubey7313]

I remember in my 6th grade, I had this amazing geography teacher who taught me about the universe in one of our classes and I remember coming out of that class like really really inspired and I wanted to become a researcher too but I wasn't that great at physics at that point of time so I had to work hard and I kinda fell in love with physics and math .....like its so beautiful. I'm planning on becoming a cosmologists but I'm stuck in high school calculating the speed of echo when 2 men are standing between two cliffs 😂 not complaining, it's kinda fun really.

[@prachichoubey7313]

@@blueradium4260 you are a physicist? Cool! Which book btw?

[@prachichoubey7313]

@@blueradium4260 thanks for the book recommendation. So where do you work?

[@TerragonCFD]

would be so sweet to tell your teacher how much he inspired you 🙂

[@prachichoubey7313]

@@TerragonCFD I did. She loved it!

[@TerragonCFD]

That's so good 🙂I can imagine how proud of you she is@@prachichoubey7313

[@eitanweiss7026]

I love this series!!!!!! So happy u made a new video!!

[@gregorywhatley9659]

Does anyone else feel immensely like they're missing out, trapped in full time minimum wage employment with a passion for academics and unsure how to pursue them? These videos inspire me, but also make me miss a time where I had the available resources to actually work towards educating myself effectively. Everything I do now is all self taught independent learning, and I always feel a huge amount of anxiety that I am either doing something wrong or am going to end up believing something misinformed and fundamentally untrue. How do I move from here?

[@TheAngryDwarfff]

Exactly the same here. I left school due to mental health issues, so I never got the grades needed to even try at uni. Wanted to do astrobiology but there's no chance now, without masses of debt and years of grief.. These videos are great.. but they also depress me even more because i know i could be doing the same if I got over my issues sooner..

[@theflaggeddragon9472]

If only our society actually cared about people's well being. I don't know how to help as I've gone into academics in a traditional route, but it's so cruel how we treat people who fall through the cracks, especially for mental health reasons. You can learn a ridiculous amount just reading (I'm in pure math, so this is how I learn everything). Just search up what you want to learn and start reading and working problems. Best of luck

[@gregorywhatley9659]

@@theflaggeddragon9472 thanks, appreciate it

[@shiveditasingh4593]

I am a Chemical Engineering graduate. Fluid mechanics was my favorite! I agree, maths is so much fun but the way it is taught, it is imposed and made the rude victim of perception. Loved all the explanations, life and just everything. More power to such academics. ❣️

[@TerragonCFD]

I love fluid mechanics, although i had a bad math teacher 😁

[@eikopalma3072]

Thanks! That's what I need in this moment to not give up with my research.

[@KakarotM99]

Planning to do a PhD in Convective heat transfer (fluid mechanics with temperature gradient). Fluid mechanics is every where 🔥🔥🔥

[@mathunt1130]

I did my PhD in fluid dynamics. Fluid dynamics is the most versatile topic an applied mathematician can do. Paul Milewski (at Bath) became interested in this. The laws of this type of stuff obey the same laws as quantum mechanics.

[@nancygarcia9226]

Hearing about the disparities between the genders in STEM is really sad. I'm studying environmental technology in Mexico and a lot of girls get discouraged because of the sexual harassment in school from fellow students since it's a male dominated school.

[@thenujayakaluarachchi1766]

I’m sorry to hear that. Good luck in your studies.

[@Abstractor21]

Here in Uruguay most chemists are Girls, like more than 80%. Thats a lot. I really think society is creating this disparities its a shame :/ Most people with scientific mind i know are men.

[@stijnboeren3943]

Glad this series is back!!

[@OhNoNotAgain42]

I got a degree in this 30 years ago. I have spent most of my career arguing with various manufacturers regarding contract compliance. Much of the rest of the time on employee performance problems. Then budget proposals and spending reports. Twice per year, I do some physics stuff. Sad.

[@adrigrenou8965]

Check the viscosity in N-S equation at 6:16 :) ( u)

[@joshuabrinkerhoff3087]

Great catch - and you're right; there is a mistake in Simon's equation

[@joshuabrinkerhoff3087]

Wait a minute -- Kat has the same notation at 6:38 -- perhaps using \mu for kinematic viscosity is a UK thing?

[@diogopitz15]

@@joshuabrinkerhoff3087 Definitely not, u means kinematic viscosity in the UK too.

[@adrigrenou8965]

@@joshuabrinkerhoff3087 Yeah I saw it too!

[@DirkDien]

Awesome work, both of you! Fingers crossed that she can motivate more people for maths.

[@LimLux]

Not gonna lie, I enjoyed this way more that I though I would. Well done both of you. May God bless all of us

[@benmcreynolds8581]

🧲🌡️📡🔆☢️🔌🔊🔋♻️🌐☯️⚛️ It's facinating how when we look around & we see all this complexity with-in the Universe. That complexity basically comes from: ~{"Differences"}~ That "factor" of how differences interact seems to be the key factor in keeping dynamic systems functioning. Such as: *{High pressure/low pressure, hot/cold temperatures, different densities, viscosities, turbulent flow, static electric charges/discharges, electromagnetism north/south poles, different velocity/angular momentum, different amounts of energy/mass/frequency/vibrations. Different boundary layers between different regions such as: (Land/water/air/layers of the atmosphere/space/ the different regions in space with different particle density/background radiation, solar wind/membrane layers/bubble's/cloud regions, nebula's/Galaxy's/Galaxy clusters/ Cosmic filaments/less dense regions of space compared to dense regions of space.) All of these things are basic differences but create a way for the dynamic engine with-in Nature to continue flowing and operating to create and convert energy.} Just Like How a battery 🔋 transfers + charges through a membrane layer to a - charged side. Like how regions of high/low temperature 🌡️ create winds. In water- add some factors and It creates ocean currents and flow. Then internally inside our planet it creates plate tectonics, planetary convection, geothermal activity, a magnetic field around our planet, to hold a atmosphere. The list goes on 🧲🌡️📡🔆☢️🔌🔊🔋♻️🌐☯️⚛️ The natural world around us is just utterly facinating to me.

[@safooh94]

Just a doubt. Since in the NS equation, density is taken as a constant and dividing density on both sides won't we get kinematic viscosity on the right hand side rather than dynamic viscosity?

[@SimonClark]

We were unsure about this when we were filming and if it's wrong it's my fault - I didn't think anyone would notice even if it was wrong!

[@micayahritchie7158]

10:00 This is so sad. I'm genuinely curious as to whether or not it's a thing saying you can't do it and what exactly it is, because I'm from Jamaica where girls outperform boys at every level of school in every subject straight up to undergrad (And literacy rate is like 10% higher among women) so I was shocked to learn that there are fewer women in the sciences than men at a graduate level and that they shy away from Engineering or Computer Science as well. I mean how does anybody convince girls that have consistently been better than boys at everything that suddenly they aren't good enough. It's baffling to me. Can I also just comment that coming to school in the US was such a massive difference. I've always been in mostly female classes my entire life, my CAPE (like Caribbean A levels) Physics class of 30 only had 4 males for example. So it's been really strange not seeing many women in my university classes here

[@pipersolanas3322]

Yeah it's genuinely sad

[@wenhanzhou5826]

This series is great, looking forward to meet more PhD:s

[@alubeixu]

"You can't do abstract math for no reason anymore" - this is really sad... Is this a thing in all the uk or only in bath?

[@dadt8009]

I think she exaggerated. However in agreement with her point, there are more funding and job opportunities in applied or applicable side of things. If you want to do very "pure" math/science and totally ignore applications and the real world, you've gotta be extremely good to survive long term in the academia. You may think of Cambridge and Oxford as the homes of very abstract and pure maths. But applied maths was practically invented in these places, it employs more people, get the funding to build facitlities, etc. But we don't need to worry, even the most abstract research has applications, at least potentially if not immediately. Also, note she's saying "reason", NOT "application". Surely, you must have a reason for doing anything, otherwise why do you do it.

[@triton62674]

This the sad reality that culture around academia has started gravitating towards practical applications of theory rather than simply learning for the sake of it.

[@kudzem]

I had my cat watch this and she can now solve Navier-Stokes analytically, thank you

[@profamitgupta]

Though i worked on droplet impact on a dry surface during my MS, this demonstration and Kate’s depth of work is very interesting. Good luck.

[@BanAlMandalawi]

Very enjoyable video! more of this please :D

[@Mr35diamonds]

11:34 RILEY MATHEMATICAL METHODS on the side there. Probably every physics student is familiar with it, surprised it’s still used by phd students.

[@RazgrizDuTTA]

I just started my PhD this week on strongly coupled multiphysics reduced order (numerical) models. I'm really excited! But I have a really bad case of impostor syndrome...

[@martinliza4811]

Currently doing a PhD in aerodynamics, my research is in wall bounded turbulence for a compressible and hypersonic flow. I would also like to keep the viscous term please, not sure I can get much turbulence out of an inviscid flow 😂. What surprises me so much about the NS equation is the wide ranges of applications that this equation can solved; even though, we are not entirely sure that a smooth solution always exists!

[@fwcolb]

First, you decide you want investigate everything in the world. Because fluid dynamics is the broadest field of physics. Everything from glaciers to plate tectonics to ketchup is included.

[@srikrishnarkapillalamarri3496]

Hey Dr Simon one small doubt, is the two liquids the same? The one added through the syringe into the liquid trough

[@SimonClark]

Yep they're both assumed to have the same characteristics (which could be water or oil or whatever)

[@leif1075]

@@SimonClark Hey Simon, thanks for sharing. I hope you can respond to my other comment when you can. Thanks. And any tips on dealing with grad school so it's not too stressful and mostly enjoyable

[@TrangNguyen-pz9ht]

This reminds me of rainy days when I was just watching the rain and had tons of questions in my head. Hope I can have a chance to learn these things in the future. Now just die in physics exercises. Yeah! Just a dream of a high schooler.

[@ludicrous9696]

Simon I need some help. I want to do a PhD in Physics because I know I want to use my masters to do some kind of research and learn more about physics. However I wanted to do theoretical physics and was told im not good enough, to which in twitch chat you said you were the same. How did you choose a next field area? I struggle having motivation to look for phds or even knowing what to do because i was set on QFT and now I can't do it (or its incredibly unlikely). Do you have any advice?

[@PotatoSaladwthMarmalade]

Glad this series is back.

[@KJ7JHN]

It is possible to generate waves on the surface of this bath. Is it possible to create a neutral point in a standin wave under the surface?

[@qauqau8449]

Great work..i want to join you..m doing phd in fluid mechanics..but your concepts are very strong..hope to learn much more from you

[@dinasoltanitehrani2901]

What about using thr Lattice Boltzmann Equation instead of the Navier-Stokes Equation?

[@thegamechanger7157]

The energy level of droplets. That's a good model to see.. By calculating moisture air and rain. You could see the energy stored on water..this is only empherical solution..but it is true.

[@yashshinde112]

This explains why heavy objects just submerse in water easily before buoyancy takes over, if it can, while droplets bounce on it! So DOPE!!!!

[@zeldovich33]

Wow this research is so beautiful, actually I begin with my final project degree in capillary instabilities in some way both works are connect. Sorry for my bad English

[@dortmundreus3618]

I just started rewatching PHD vlogs for the 5th time, spoiler alert about getting the whole PhD thing

[@critiqueofthegothgf]

this is freaking awesome

[@AdamWrigley]

Great editing

[@epsolon1000]

I just concluded my masters in applied mathematics, where I focused on fluid dynamics(magnetohydrodynamics) would love to contact you on more insight to my PhD journey.

[@lngun]

Out of curiosity, why is the atmosphere considered inviscid? Air has a viscosity that is temperature dependent so why does it get treated as if it has none?

[@mmmmm49513]

It really depends on the problem being asked and how it’s set up. She likely determined that it didn’t play a major role (using a tool like dimensional analysis etc) and then dropping it simplifies the governing equations a lot.

[@chinook9785]

Weird how they ride x like c and a mirrored c instead of to crossing lines like 45 ° turned plus

[@3zObafouzr]

Riley, Hobson, and Bence sitting on the desk there with the same aura as the monolith in 2001

[@ruairidhlivingstone2069]

Wait you were up on Bath campus? So annoyed I didn't see you on sports day in fresher's week

[@beave265]

Yes, but what about Navier-stokes equation..has it solved?

[@mahmudurrahman1696]

Hey is that arfkens math methods book?

[@kraispsiakis]

can i get a phd in fluid mechs with a bachelor on marine engineering and naval architecture?

[@sohailkhattak5268]

Hi. Any PhD scholarship with respect to fluid mechanics in machining... I have done masters in design and manufacturing and my research work is related to machining or more specifically micromilling while one of its aspect is role of fluid i-e flooded and Mql fluid... Please help

[@adamtaylor2142]

Lol I want Simon to come to my house and argue with me about my notation while I try to work.

[@vintyprod]

The stream banter was great lol

[@rishabhkumarparashar1045]

You should do a pod cast I will love it

[@davidrandell2224]

“The Final Theory: Rethinking Our Scientific Legacy “, Mark McCutcheon. The earth approaches the released object: no stress, strain, force on any “ dropped “ object. The released water balloon becomes spherical because it ( or your water drop) is not moving. Absent the air- in a vacuum- of course. Hammer, feather on moon or Cox’s YT vacuum chamber video. Too bad a flexible object wasn’t used- slinky, water balloon.

[@shaohongyu7721]

7:05 LOL that finger tho

[@missingno9]

I love the PhD cake thing they got going on!

[@ПетърЕвгениев-ч4в]

You should really check out Pastel Academic's PhD vlog content.

[@lol-eq2xk]

Currently dying in my cs class. How yall doing?

[@ingraban98]

This sounds like so much fun (not ironic).

[@chacmool2581]

Ph.D.s are taken within established disciples, engineering, physics, astronomy, etc. They are not taken on narrow topics.

[@michaelthechimp7736]

What I think about is how particles interact with all the variables that are attributed to everything, the interactions at every moment in time. Fluid is one thing with peculiar interactions, waves are another, heat, cold, time, but really how all of the harmonics happen to form a scientific theory based upon one miniscule idea. I hope some day God reveals his creation and puts an end to humans trying to be like God. I also wonder why science makes weapons and has been embraced by politics to create a narrative whilst science is still infantile in the grand schema of all things combined that is. But I am just a monkey hoping Darwin was right. I hear the bell and drool for bananas with no inkling or comprehension of how my own mind and experience lead me. So I write.

[@anugrahdileep7924]

This video will surely help Destin @SmarterEveryday

[@johnflorio3052]

I’ve heard the doctoral fluid mechanics curriculum is viscous; l mean vicious…

[@alemaassm]

Excellent video mate! Getting some nostalgia from when I was doing my PhD.

[@epsolon1000]

I love this

[@lakshmih3353]

This is really cool

[@haldanesghost]

I think I’m in love. I mean, she’s beautiful too, but those Faraday waves are love at first sight!

[@CoryDAnimates]

I love the part when two similar systems math play off each other. It actually makes mores sense what all those parts mean. I just had a ahhah method.

[@likebot.]

A good embathador for maths.

[@neelroy2918]

> thumbnail: How do you get Phd in Fluid Mechanics Be like water my friend - Bruce Lee

[@cpgrace1902]

She really had to Diss pure maths like that...

[@helgefan8994]

But the air *is* viscous! At least for flies and other small insects...

[@takiyaazrin7562]

Astonishing

[@livintolearn7053]

Good, good. But when is the next date?

[@VictorAgboga]

Yo Simon. I'm at Warwick doing a PhD in African Politics, studying African MPs and voters' behaviour. I wouldn't mind a vlog on my research. 😀

[@stormsurge1]

Ooga booga 🐒🐒🐒

[@triton62674]

@@stormsurge1 Wow

[@ghaithkafal-ghazal8332]

Could anyone send her Twitch account please

[@KatDoesMaths]

it's katdoesmaths I hear

[@zagros24]

I did 2 years engineering (HVAC systems) before I figured out the real estate is lot better in terms of $$$ lol. University was the best time of my life.

[@mayureshpatil1873]

Now I know why it takes years for research.

[@innfdtfjord3340]

Thank you) Kat is cute and very smart girl, she stole my heart)

[@stuartrockin]

You just have to go with the flow...

[@rebeljesus3470]

Yay, numbers!

[@payrimdwein9082]

phd stories and podcasts in math and tech fields?

[@ashenperera3523]

Damn this is so interesting