|February 11, 2012, 19:06||
b.c., how to exterminate undesired pressure waves?
Join Date: Jan 2012
Posts: 4Rep Power: 6
to start with, Im quite new to OpenFOAM.
To start my originally desired simulation, the fluid (water) should flow in a stationary condition into a tank, afterwards trough a conected pipe and then leave the apparatus.
Unfortunately it doesn´t reach a stationary condition. Pressure oscillates forth and back the tank and pipe instead.
I tried different settings. I mostly set the internal fiel to the desired velocity and the pressures to zeroGradient. Some ideas have been rising velocity starting from zero with groovybc or using waveTransmissive b.c. to kill the pressure waves, whereas the latter did not work due to "psi", which wasn´t found.
I´m using sonicLiquidFoam in OpenFOAM (v. 1.7.1) for my simulation.
Does anyone have an idea how I could eighter avoid causing pressure waves or damping them to zero?
I´m looking forward to recieving your answeres
|boundary conditions, pressure wave, wavetransmissive|
|Thread||Thread Starter||Forum||Replies||Last Post|
|rhoPimpleFoam Initial Setup Queries for a Flow Generated due to Pressure B.C||umer.chaudrey||OpenFOAM||1||October 4, 2011 03:52|
|Supersonic + Pressure Outlet B.C.||wisemo||FLUENT||0||August 7, 2011 11:44|
|Pressure waves bouncing around while using coodles||ankgupta8um||OpenFOAM Running, Solving & CFD||4||March 5, 2008 07:54|
|Pressure far field B.C||nadeem||FLUENT||0||May 7, 2006 01:29|
|Hydrostatic pressure in 2-phase flow modeling (long)||DS & HB||Main CFD Forum||0||January 8, 2000 16:00|