Fluid Mechanics | Module 5 | Fluid Flow | Turbulent Flow | Part 1 (Lecture 41)

[@chinmaykolekar8008]

Turbulent flow me boundary ke pass anewale particles laminar ki tarah behave karte hai kunki velocity kam hone ke karn , ye concept bahut acche se samaj aya si thank you sir Hame ye concepts semester ke vakt professors nahi batate hai , apne ye samajadiya ,aise concept kiske karn hota hai ye bhi bataya, yahi to hame Chahiye tha aur apne diya once again thank you sir

[@AkibJahangirChoudhury]

Those professors simply come to finish the syllabus and get their heavy salaries. They don’t care at all for teaching the students. These professors with their years of experience want us to understand the topics in one shot. That’s why these so called “gyan bhandars” are producing engineers with just degrees and not conceptual understandings.

[@ExpressingtheHeart]

Thanks for this vedio, your efforts to clear all the concepts to viewers, this is extremely tremendous.

[@anand5899]

Sir your teaching is excellent ..,you proved it wrong that one teacher can teach a single subject only.thanks sir for such awesome lectures

[@saurabhdubey7693]

thank you so much sir....all the doubt automatically get clear after watching you lecture.....thank to gate academy team

[@govindmurari1234]

Thanx sir ji Next video ka wait kr rha hu

[@mohammadumair7778]

Good video, nice work: just one correction - the laminar sublayer is a misnomer for viscous sublayer; flow field near the wall is highly turbulent because of the shear which is responsible for sustenance of turbulence (without shear turbulence can never sustain). The misnomer 'laminar' sublayer arises because when you scale the mean flow velocity with friction velocity at the wall, the profile collapses to the linear profile. The observed linearity has nothing to do with the flow being laminar!

[@KapilPCECE-gu5cr]

You are very good and sir.... I like your way of teaching...

[@Sujeet_kr.]

Great sir

[@zerefkhan4928]

really very helpful video

[@ashesbanerjee2528]

Small correction: The 'Reynolds stress' was not a formula given by Reynolds. This term originates when you substitute the u and v values for turbulent condition in the Navier-Stokes equation. This is famously known as the closure problem of turbulence.

[@AkibJahangirChoudhury]

Thanks for your info.

[@govindasharma9772]

Thankyou sir! A big thankyou for you and your team😊😊

[@kamleshsahu8160]

What an Amazing 🤩 Vd lecture sir❤️... I cleared all the concept of turbulent flow in pipe 🙏... THANKYOU SO MUCH GURU JI🤗🤗

[@bryantbrooks7934]

Sorry to be off topic but does anyone know a trick to get back into an instagram account..? I was dumb forgot my password. I would appreciate any tricks you can give me

[@sourabhsharma9404]

@@bryantbrooks7934 try e-mail

[@rutujadesai6034]

thank you so much,sir Your teaching is excellent !

[@shibbshibb388]

u r simply osmmm..great job

[@shubhamwr]

At 31:00 why didn't we take at y=0, u=0 which we did while solving earlier equations? C will be 0 by that

[@AkibJahangirChoudhury]

Watch the lecture carefully. Sir already told that at or near the wall the viscous force dominates due to which the velocity becomes considerably small. Therefore finding velocity distribution at y=0 for Turbulent flow becomes irrelevant. I hope you understood.

[@csecure6157]

awesome video loved it thanks a lot.learned alot

[@m.k4616]

thanks sir you explain well.

[@Vy-23]

very good explanation sirr

[@jaisinghverma3716]

Excellent video Sir.

[@CrackIMUCET0024]

VG sir is best of best

[@gautamgohil07]

Thank u so much sir , your video lectures are very usefull ❤️

[@ruchirranjan303]

Sir ne Laminar Flow ka video nhi daala tha kya??? Because woh mil nhi rha hai.

[@nehaagarwal9747]

hlw sir ,thku so much for your great work .try to upload more videos in a day pls.

[@pradeeppatil7913]

Sir when will we study boundry layer theory

[@somprabhatsharma3952]

Which flow has higher velocity at center laminar or turbulent

[@quicklearner9598]

sir you are saying turbulent flow is always unsteady it means local acceration exist then in darcy wesibach equation which is also valid for turbulent flow we have asummed that net force equal to zero we have negelected local acceleration. why??

[@the_blue_dot]

In the derivation of Darcy wesibach equation, we did not consider small element. Instead we used the whole system and applied Newton's law on it so that we don't have to worry about the local acceleration.

[@sanketnawale7505]

Steady flow can be both Turbulent and Laminar.

[@ankanaman8451]

@@sanketnawale7505 but according to sir tarbulent flow is always unsteady

[@Tushank_Sahu]

Sir, Darcy weisbach eq is valid for steady flow but in this lecture u said tubulent flow is 3D and unsteady. How can we use Darcy equation in turbulent flow.

[@civilengineer5064]

20:00

[@rohitchaudhary3619]

18:08 sir u' and v' ki value same q hai

[@channel-zb9jj]

Experimental proven

[@gururaj3165]

In du/dy......y is not direction y represents distance measured from pipe wall.

[@mvthought_]

Thank you so much sir

[@rushikeshmalpe3715]

Thank you sir

[@ruthvikvachhani4197]

Did you have helping video for mechatronics engineering subjects ?

[@shubhamgurav9194]

Thanks a lot sir 👍👌🙏❤️🔥😎

[@bairigopal2579]

Sir next video kab upload karoge I am waiting for it

[@PM-yn7ln]

sir pls upload fluid machinery....

[@AVINASHKUMAR-vs6uk]

Sii If Turbulent flow is unsteady flow then how Bernoulli equation can be applied to find Darcy Weisbach equation ???

[@LEAPACADEMY62]

Very effective sir ji

[@sathyaprasad2389]

Sir, could you also make lectures on applied thermodynamics...thank you

[@piyushdeshmukh4282]

Sir plz thermal ke lectures karvao na..!

[@kuldeeprathore656]

Thank you so much plzzz make more videos related to mechanical engineering subjects

[@KapilPCECE-gu5cr]

Sir I have an doubt about the properties of Fluid which is mentioned in comment box property of Fluid part 2... Please solve it I cannot watch next videos....

[@akshaylimba9405]

Sir great lecture..

[@princekumar-cr9uv]

Nice sir

[@tps8470]

Nice

[@jaypatel7632]

Thanks🙏🙇🙏💕.. a lot..

[@rawat6277]

In prandtls mixing length derivation We take shear stress is boundary shear stress than how velocity distribution equation by this derivation is valid for entire flow section

[@imamit100]

the total shear stress = laminar + turbulent SS, , total SS equation is valid for whole section.

[@kuldeepgupta1416]

If y is small than shear stress is equal to wall shear stress, but shear velocity can derive same by dimensional analysis by taking shear stress at fluid or shear stress at wall.

[@sumeshsinha1968]

sir, what about the moody's diagram???

[@sandeepsingh-hu4uz]

THANKS SIR

[@karthikballa1914]

Sir, a small doubt. How is laminar sub layer different from boundary layer?

[@muzammilm892]

Laminar sub layer is close to wall my friend. Boundary layer has very big definition, which boundary layer you are refering to? fully developed?

[@mahadev7140]

Thanks a lot sir

[@thefactknowledge1922]

Thanks

[@aniketsaw7347]

Thanks Sir 👍

[@madhur7787]

Sir itne assumptions lene padte hai to rehne dete hai na fr btw jokes apart sir you're the best teacher i have ever met online

[@ninadsbhatt100]

Does this come in Gate?

[@AkibJahangirChoudhury]

Yes required for gate

[@adarsh1047]

Vry nice

[@sumitshrivastav1847]

Sir laminar flow ka lecturr upload nhi kiye hai kya. Only turbulent flow ka lectures hai

[@arvindkrkapoor1227]

Sir, Can you please let me know about Shear velocity U★.in turbulent flow. with details

[@satisharya1783]

sir please upload next lectures

[@shoaibmukhtar4422]

Upload the pulsating plates

[@SameerKhan-bz4td]

Sir Moody's diagram ko explain karne ko kha tha aap ne but wo to btaya hi nhi

[@adilsalam6477]

Sir please upload compressible flow

[@Jk_construction_0707]

Sir fm2 according to syllabus kaha milega plzzz help me sir

[@benzenelifestyle7044]

Sir in the last part ,,if Re is less than 4 then we are considering it as smooth in case of turbulent but if Re is less than 2000 ,, it is the case of laminar flow ,, could you explain this .

[@imamit100]

Re < 4, means, surface is smooth, not the flow. and Re < 2000 means flow is smooth not the surface.

[@shubhamjoshi6937]

sir darcy equation me toh steady flow mana tha pr abhi turbulent flow ko unsteady kyu bola?

[@VijayYadav-zs5jf]

Sir FM ki puri sllybus ki video aap ke padne koe file me available h kya.... Sr sequence wise milta nhi h....

[@imamit100]

check the playlist

[@jaiminshah7578]

sir Kitne tym me saare videos upload ho jaayenge ....i mean turbines k bhi

[@artistic-v8411]

Jaimin Shah fluid machinery is different module

[@jaiminshah7578]

Er. Venugopal sharma sir i mean to ask hw much tym it will take as i want to complete the sub within 2 weeks....and ur video lectures are damn gud ....i m comfortable with ur teaching technique ....so if u can complete the sub within next week (which i dnt think so a easy task ) den it will be gud for me

[@ruchirranjan303]

Sir Laminar Flow waala Video nhi mil rha hai🥺

[@abhikadhikari571]

sir production ka class start kare

[@lavkumargupta1143]

sir Prandtl universal velocity is not define at solid boundary layer because log(zero ) is not defined what will you say about this because mathematically it is 100% fault.

[@utpal4535]

Boundary surface was consider just for reference only

[@vinodvalani3067]

Turbulent flow nu gujrati su thay?

[@souhardsingh5495]

Sir how to get notes pdf of fluid mechanics

[@aqdasalam4290]

Why u have not solved any numerical problem?

[@nileshgawai8034]

IES MECHANICAL, IN FM, BOUNDRY LAYER HAI YA NAHI.

[@029mdsaif9]

Saale ko subject ka hi nhi pta kya bne ka ye IES

[@lavkumargupta1143]

u= u,max +2.5u,*ln(0/R) is not equalt to zero ?

[@soumikmukherjee3378]

Ln0 is not defined

[@pratibhakumari6290]

Sir, 25 August tk FM khtm ho jayega??

[@artistic-v8411]

pratibha kumari pehle hi then som and thermo

[@piyushdeshmukh4282]

Sir plz take thermo first...!

[@mohammedameeruddin2315]

Er. Venugopal sharma som and thermo aap teach karoge

[@bibhashranjan1080]

Why in steady flow net force=0

[@soumikmukherjee3378]

Because local acceleration is zero for steady flow ,therefore F=m*a = 0

[@hashim4552]

Ye sb practical life me use huga 🤔🤔

[@devendarsinghkhichi6600]

Hmt per banao sir

[@sonarambrahma5331]

Sir, log function is not defined at '0'. How do we explain 'u' when y is zero. At y=0. u=Umax + ln (0)

[@maniartworks]

At y=0 pr laminar flow hoga (laminar sub layer) tb ye eqn nahi hoga

[@souravagarwal8228]

prabhu

[@rizwanlarzi5692]

) In a completely turbulent flows the headloss a) Increases withVelocity b) Increases with velocity squared c) Decreases with wall roughness d) Increaseswithdiameter e) Increaseswithflowrate

[@sarbjeetparmar7959]

B) velocity square.

[@gopalakrishnaseelamneni4445]

Sir speak English but I' cont understand hindi

[@vivek-qp1zs]

Sab mix ho gya 🥺

[@280rahulkumar5]

Don't hack gate acedamy plus...

[@aqdasalam4290]

Aap sirf theory teach karte ho

[@029mdsaif9]

Bhai ab tu bacha nhi rha khud bhi kr sakta hai tu itna concept btaadiya wo bhi halke halke wo bhi bohot hai

[@govindmurari1234]

Thanx sir ji Next video ka wait kr rha hu

[@kishorlimje169]

Thank you sir ❤

[@taptabc1188]

Thank you so much sir ...

[@bryantselltrkes1421]

Thank you sir🙏

[@dharamvirsinghverma2182]

Thank you Sir ji

[@maliwad01]

Thank you sir❤🙏

[@zaidansari3457]

Thanks sir

[@sajalgorai2570]

Thank you sir

[@suddhvillagelife861]

thank you sir ji

[@baijuupadhyay6891]

Thank you sir