Anyone know where the coefficient of discharge comes from… seems to be one of engineerings finest mysteries
@CasparHewettFluids2 күн бұрын
It is an empirical parameter which is intorduced to take account of energy losses - for the idealised case the coefficient is one. Thus, for a real weir we haev to calibrate to find cd.
@sreenathcivil23 күн бұрын
🎉🎉🎉
@KVishwanath-r5l24 күн бұрын
Thank you Sir
@ekinhuner2594Ай бұрын
Thank you so much
@orson_carteАй бұрын
Good to see you're still at work! Best regards Terry J
@landrynoune28972 ай бұрын
great job
@wooyoungsdoormat38533 ай бұрын
i wish you would be my teacher. amazing
@kaursingh6375 ай бұрын
EXCELLENT-- WHICH UNIVERSITY ? -WHICH COUNTRY ?
@CasparHewettFluids5 ай бұрын
Newcastle University, UK
@kaursingh6374 ай бұрын
@@CasparHewettFluids thank u sir
@Daudweatherforcast5 ай бұрын
Please someone help me out, I have a tube well with 3 inches delivery and water is pulled by a 7.5 hp submersible pump system. What I am planning to do is to reuse the water force which falls out and to produce electricity or mechanical power. What output can be obtained and which system is more efficient, micro hydro turbine or a propeller.
@robertmulderrig73845 күн бұрын
Wouldn’t be worth the power you created
@Jason-so6mz5 күн бұрын
@@robertmulderrig7384 shut up and help
@musisipascal23705 ай бұрын
Hi, Thank you for the good explanation. I'm personally interested in how you can use it to solve a nonlinear reaction diffusion equation. How would you go about analysis its stability in relation to the Von Neumann Stability condition? Thank you in advance.
@mohammadkhalili32476 ай бұрын
👌👌👌
@WilliamRobert-od9vl7 ай бұрын
Was this video inspired by a publication or academic resource? I would be interested in learning more about the stability analysis!
@CasparHewettFluids7 ай бұрын
No, I wrote the material myself for a course. I will be publishing a book on Computational Hydraulics later this year, though, which will expand on this material.
@ghbbllk40957 ай бұрын
Why is the momentum force in the opposite direction as the pressure force? Seems like they would both be acting in the same direction, no?🤔
@CasparHewettFluids7 ай бұрын
There are two elements of the momentum. The momentum into the control volume, which acts in the same direction as the pressure and the momentum out of the control volume which is in the opposite direction to the pressure
@CasparHewettFluids7 ай бұрын
The pressure forces are those acting on the control volume, which is why they are both inward
@DanTercelify7 ай бұрын
Very good, detailed analysis. The figures and equations are beautifully rendered. Thanks!
@mrmagoo-i2l8 ай бұрын
Perfect, just explained in 5 mins what took hours to be taught badly in university.
@HelloWorlds__JTS8 ай бұрын
Great video! But why can't I find anyone explaining 3-pt 1st-order FD?
@4_Gatitos8 ай бұрын
Hello! Is there a way we could send you an email?
@CasparHewettFluids8 ай бұрын
Do you have a question? I will do my best to answer it here!
@danielhakimzambri8929 ай бұрын
Hello, what is ubar in the bousinesque equation
@danielhakimzambri8929 ай бұрын
Is it like the average velocity or what?
@CasparHewettFluids9 ай бұрын
@@danielhakimzambri892 yes, it is the average velocity 😉
@danielhakimzambri8929 ай бұрын
@@CasparHewettFluids thanks
@hhhberzerk535310 ай бұрын
Well explained Keep up the good work 👍
@olooalfredo11 ай бұрын
Shukran jidan!
@gopalashetty359211 ай бұрын
what is bournolis ?
@CasparHewettFluids2 күн бұрын
Bernoulli was a person, but in this context I am talking about the steady state energy equation - see this video for details: kzbin.info/www/bejne/o6HWnmp9h96UftU
@ernestjesly11 ай бұрын
Is the beam warming scheme is implicit
@ernestjesly11 ай бұрын
What basics should i study more to understand this?
@mohsen9828 Жыл бұрын
if we consider a 90-degree bend pipe, with initial conditions as follows: inlet velocity 15 m/s, no change in cross-section area (let's say radius of 0.2 m), and we only know outlet pressure is equal to atmospheric pressure. Is Bernoulli's equation satisfied? does it mean outlet and inlet pressure are the same? in that case, there's no flow?!
@CasparHewettFluids5 ай бұрын
Bernoulli equation is satisfied within the pipe so pressure will be constant if the pipe is horizontal, resulting in a jet at the outlet. The pressure in the pipe can't be atmospheric pressure if the water has a velocity! Conditions are different once water reaches the outlet. Thus, the problem you pose can't be solved. There is insufficient information. You would need to know the pressure in the pipe.
@ayushsharma7044 Жыл бұрын
at 11:29 your wrote incorrect solution please review it. It should be (r - rho)*c(i+1),(j)
@nawaf8099 Жыл бұрын
What a wonderful video!!!!!!
@liambond3569 Жыл бұрын
Would the vertical pressure force still be oriented downward if the curved pipe was facing down not up?
@CasparHewettFluids Жыл бұрын
No, the pressure force always acts inwards towards the control volume so it would be acting upwards if the pipe were facing downward.
@pmt4297 Жыл бұрын
excellent explanations! I wish I had such an articulate professor when I studied open channel hydraulics at university.
@CasparHewettFluids2 күн бұрын
Thanks 🙂
@adhimta3306 Жыл бұрын
this is amazing, thank you!
@JALAJDARPAN Жыл бұрын
Thank you professor
@AJ-et3vf Жыл бұрын
Great video. Thank you
@miholju Жыл бұрын
The last image looks just like B-Spline basis functions. Is my assumption right, or wrong?
@-HenguljyotiGayan Жыл бұрын
Thanks a lot sir.
@jonathans.4046 Жыл бұрын
Very well explained. Thanks a lot!
@nathancarpenter8895 Жыл бұрын
Why is density not included in the Bernoulli equation?
@TabiHawkins-kt7yc Жыл бұрын
P/dg=H-z1
@CasparHewettFluids2 күн бұрын
See kzbin.info/www/bejne/o6HWnmp9h96UftU for a full explanation - density does appear in the equation!
@josephtraverso5355 Жыл бұрын
Well presented, thank you Caspar!
@mBilalAcademy Жыл бұрын
It helped me a lot. Can you tell me how did you define initial distribution?
@pippakolking19982 жыл бұрын
How do we determine the direction of pressure force?
@CasparHewettFluids2 жыл бұрын
We are considering the forces on the control volume, so the pressure force is acting inwards on that control volume (there is an equal and opposite pressure force outward, but that isn't relevant to the calculation) thus it is acting to the right on the left hand side and to the left on the right hand side.
@elispot172 жыл бұрын
such a nice video! well done!
@madalenamedeiros43712 жыл бұрын
hello, i stumbled upon a exercise that was similar to the last example but the curve was divided in half by two fluids. Would the resultant vertical force be the same?
@elispot172 жыл бұрын
The best 1d hydrodinamic equation explanation video!!!
@marioforster52782 жыл бұрын
u da mvp!
@quangdang48842 жыл бұрын
Thank you. I learned a lot from this video
@freespirit56802 жыл бұрын
Very good explanation. Thank you (again), Caspar.
@freespirit56802 жыл бұрын
Thank you. Well explained.
@freespirit56802 жыл бұрын
Very neatly explained, Caspar; thank you.
@alejandroespino47732 жыл бұрын
Great video
@othmana29792 жыл бұрын
This is priceless!! cant be explained in a better way. Thank you for your effort.
@othmana29792 жыл бұрын
Thanks alot. This was very helpful.
@lightspd7142 жыл бұрын
Why isn’t there a Q1 and Q2? In other words why can we assume that A1u1=A2u2=Q ?