 |
 |
 |
|
|
|
[Sponsors] | ||||
Why the entropy is decreasing through the flow |
 |
|
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
May 13, 2023, 02:49
|
Why the entropy is decreasing through the flow
|
#1 |
|
New Member
Yuanhua Liu
Join Date: Dec 2021
Posts: 3
Rep Power: 4  |
I was simulating a compressor with volute. I made some streamlines in CFD-Post and it seems the static entropy first go up and then decreased. As the flow is approximately adiabatic in compressor, how can static entropy goes down?
|
|
|
|
|
|
May 13, 2023, 10:10
|
|
#2 |
|
Senior Member
Join Date: Jun 2009
Posts: 1,873
Rep Power: 33 |
Have you computed the massFlowAve(Static Entropy)@Inlet and Outlet and compared them?
__________________
Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum. |
|
|
|
|
|
|
May 15, 2023, 04:36
|
|
#3 | |
|
New Member
Yuanhua Liu
Join Date: Dec 2021
Posts: 3
Rep Power: 4 |
Quote:
(massFlowAve(Static Entropy)@Plane 1 - massFlowAve(Static Entropy)@Plane 2 )/ massFlowAve(Static Entropy)@Plane 1 And it trend to be the Static Entropy decreased about 3%. |
||
|
|
|
||
|
| Tags |
| ansys, cfd-post, cfx |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| SU2 incompressible laminar flow | mkulcsar | SU2 | 3 | April 30, 2023 23:59 |
| Setting a mass flow with periodic boundary conditions (3D) | Flex | OpenFOAM | 2 | April 10, 2022 13:46 |
| Thermodynamic Entropy vs Numerical Entropy | ugurtan666 | Main CFD Forum | 5 | February 13, 2022 14:08 |
| mass flow in is not equal to mass flow out | saii | CFX | 12 | March 19, 2018 06:21 |
| Flow meter Design | CD adapco Group Marketing | Siemens | 3 | June 21, 2011 09:33 |
Linear Mode
