|
[Sponsors] |
Boundary codition of pointDisplacement at the immersed boundary?? |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
June 26, 2020, 06:59 |
Boundary codition of pointDisplacement at the immersed boundary??
|
#1 |
New Member
Chaewoong Ban
Join Date: Jun 2013
Posts: 18
Rep Power: 13 |
Hello.
I'm now struggling to find the adequate boundary conditon for the pointDisplacment at the immersed boundary. pointDisplacement is pointVectorField, and I guess there is no proper BC for pointVectorField in the implemented IB method (foam-extend 4.1). In that case, I may have to implement some BC for pointVectorField..? Could you give me any comments or hints for this? Many thanks. |
|
June 26, 2020, 07:07 |
|
#2 |
Senior Member
Join Date: Dec 2019
Location: Cologne, Germany
Posts: 368
Rep Power: 8 |
is there a typo in zeroGradientIB?
i mean, did you mean just zeroGradient? |
|
June 26, 2020, 09:24 |
|
#3 | |
New Member
Chaewoong Ban
Join Date: Jun 2013
Posts: 18
Rep Power: 13 |
Quote:
When I use zeroGradientIB, the result is the same as above. As you can see in the picture (right), FOAM recommended 24 patchField type, which have nothing to do with IB. When I use zeroGradient, then simulation move next step. However, another error occur (below). I think it is related with that the zeroGradient BC is not proper for the IB. ---------------------------------------------------------------------------------------------------------------------- --> FOAM FATAL ERROR: Not implemented From function immersedBoundary::gradientInternalCoeffs() in file lnInclude/fvPatchField.H at line 473. FOAM aborting Aborted (core dumped) ---------------------------------------------------------------------------------------------------------------------- |
||
July 1, 2020, 22:20 |
(solved)
|
#4 |
New Member
Chaewoong Ban
Join Date: Jun 2013
Posts: 18
Rep Power: 13 |
I use motionU instead of pointDisplacement for the dynamic mesh motion.
In addition, I made(link?) a boundary condition of tetPointVectorField for the immersedBoundary. eddited class /foam /tetFiniteElement |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Centrifugal fan-reverse flow in outlet lesds to a mass in flow field | xiexing | CFX | 3 | March 29, 2017 11:00 |
Multiphase flow - incorrect velocity on inlet | Mike_Tom | CFX | 6 | September 29, 2016 02:27 |
Waterwheel shaped turbine inside a pipe simulation problem | mshahed91 | CFX | 3 | January 10, 2015 12:19 |
Difficulty In Setting Boundary Conditions | Moinul Haque | CFX | 4 | November 25, 2014 18:30 |
RPM in Wind Turbine | Pankaj | CFX | 9 | November 23, 2009 05:05 |