Hey all,
I just want to ask about the streamlines and vorticity how we can be formulated based on LB?
Best,
Hey all,
I just want to ask about the streamlines and vorticity how we can be formulated based on LB?
Best,
Unbleivable forum…nobody needs to reply…I’m waiting.
nobody needs to reply
That said, the procedure is the same for any flow field, whether it is calculated from LBM or otherwise. Paraview can do it, as can a lot of other post-processors.
Bruce
Use finite differencing on the LB stencil to get the functions, or a relaxation method/Poisson solver for the streamfunction. As Bruce says, its post processing.
i calculated streamlines by
streamfun[j+1][i]=streamfun[j][i]+u[j][i]*dy
which is forward Finite difference aprroximation of defination of u=d(streamfun)/dy
for Vorticity,
visit. http://folk.uio.no/jks/matpiv/html/node31.html
Thanks and Regards,
i calculated streamlines by
[code=“cpp”]
streamfun[j+1][i]=streamfun[j][i]+u[j][i]*dy
> which is forward Finite difference aprroximation
> of defination of u=d(streamfun)/dy
> for Vorticity,
> visit.
> http://folk.uio.no/jks/matpiv/html/node31.html
>
> Thanks and Regards,
I use TECplot to do it. Streamline is a special feature and I need to insert formula to get the vorticity plot.