Problems on setting time-varying boundary conditions

[ZZJH999]

Hello,
I am a graduate student currently working on a simulation using dsmcFoam +. I want the free inflow condition in my case to change over time. I have tried to use dsmcFreeStreamInflowFieldPatch and set the corresponding patch type to uniformFixedValue in the boundaryT, boundaryU, boundaryNumberDensity files (as shown below), but after starting to run, although there is no error, the patches that should change over time are treated as uniform type in all time folders except the 0 folder. I guess dsmcFreeStreamInflowFieldPatch cannot be applied to time-varying boundary conditions. Could someone kindly assist me in solving this problem?

boundaryField
{
    patch1
    {
        type            uniformFixedValue;
        uniformValue	        tableFile;
        uniformValueCoeffs
        {
        	file	 	   "myFileName";
        }
    }
}

Thank you for your time.

[ZZJH999]

After several attempts, based on the files such as boundaryU in the time folders of my case, it appears that the setting of uniformFixedValue has been correctly read, but it has not actually been applied to the values of physical quantities on boundaries. Currently, it seems that dsmcFoam+ selects a value from a specific time (usually the first moment) in the tableFile and assigns it to the boundary, and then proceeds just like a steady-state calculations.

[Guanghui1234]

Hi! Can you show your dsmcGeneralBoundaries settings? After changing to dsmcFreeStreamInflowFieldPatch, I don't know how to correctly set dsmcFreeStreamInFlowFieldPatchProperties. Thank you.

[ZZJH999]

Hi! Can you show your dsmcGeneralBoundaries settings? After changing to dsmcFreeStreamInflowFieldPatch, I don't know how to correctly set dsmcFreeStreamInFlowFieldPatchProperties. Thank you.

你好，中国人么？Could you share your email address please? So I can send you a document that may contain the information you need.

[Guanghui1234]

是的，中国人，哈哈。781966930@qq.com，非常感谢

[ZZJH999]

是的，中国人，哈哈。781966930@qq.com，非常感谢

已发，祝顺利。其实我当时的工作也就到此为止了，之后更换求解器去做别的方向了，希望能帮到你。