|
[Sponsors] |
March 5, 2023, 12:41 |
2D pipe flow analsys problem
|
#1 |
New Member
Join Date: Jul 2022
Posts: 5
Rep Power: 3 |
Dear friends,
I am trying to analsys in 2D pipe flow. But as you can see at picture. The flow is dispersing in pipe certain location. I could not understand, why did happen this. I attached a jpeg file. Could you please help me? Thanks in advance, Regards, |
|
March 6, 2023, 19:06 |
|
#2 |
Senior Member
Gert-Jan
Join Date: Oct 2012
Location: Europe
Posts: 1,828
Rep Power: 27 |
Look in open literature on flow on a sudden expansion as analysed by e.q. Dellenback.
|
|
April 5, 2023, 14:20 |
For outsourcing
|
#3 |
New Member
Ali Riaz
Join Date: Mar 2016
Location: Pakistan
Posts: 22
Rep Power: 10 |
Kindly contact at +92-336-8637493 or freelanceengineers007@gmail.com to outsource project, please.
Last edited by ALI Riaz; April 5, 2023 at 14:21. Reason: a typing mistake |
|
May 15, 2023, 09:59 |
|
#4 |
New Member
Popoff
Join Date: May 2023
Posts: 4
Rep Power: 2 |
Well, first you must know what Reynolds number it is. Because you'll know what regime of your flow. Laminar, transition or turbulent.
There are many other things you must know of fluid mechanics before you start your analysis. I recommend you to read a book. My favorite is 'Introduction to Fluid Mechanics - Fox and McDonald', but is kind of hard. The most understandable book from this theme, in my opinion, is "Fluid Mechanics - Çengel, Cimbala". Any further questions you can ask me! =D |
|
May 21, 2023, 02:03 |
|
#5 | |
New Member
SURIYAGOWTHAM S
Join Date: Aug 2022
Location: India
Posts: 2
Rep Power: 0 |
Quote:
WhatsApp : +918778721439 |
||
June 6, 2023, 14:41 |
|
#6 |
Senior Member
Erik
Join Date: Feb 2011
Location: Earth (Land portion)
Posts: 1,167
Rep Power: 23 |
What you are seeing is a well known flow phenomenon called the "Coanda effect". It is due to the Bernoulli principal where higher velocity = lower static pressure. The jet will become unstable and end up attached to one wall, where it will stay since the velocity is higher, and therefore pressure is lower on that one side.
This is a great example of a perfectly symmetric geometry which results in a non-symmetric flow, showing one must be careful applying symmetry conditions to flow which may not have a symmetric solution. |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
triangular pipe flow problem | Quest.Qiu | OpenFOAM | 4 | February 1, 2022 01:49 |
Issues on the simulation of high-speed compressible flow within turbomachinery | dowlee | OpenFOAM Running, Solving & CFD | 11 | August 6, 2021 06:40 |
Multiphase flow in a pipe with a CHT | wissal | CFX | 4 | June 12, 2017 12:15 |
3D Swirl flow in the pipe: convergence problem | Sachin U. Nimbalkar | FLUENT | 5 | December 22, 2016 01:34 |
air flow in pipe with heat problem | keng | Main CFD Forum | 1 | March 5, 2010 10:40 |