[TommyJ]

Hello to all,

I would like to use the icoUncoupledKinematicCloud functionObject to see particles moving in the pitzdaily tutorial.


I would also like for them to be injected at the face center of the inlet patch.


I have prepared a case with this but my particles move with the specified velocity in the kinematicCloudProperties (U0). I would like them to move with the fluid velocity.

How can I do this?



manualParticles.zip


Best Regards

[TommyJ]

Anyone familiar with icoUncoupledKinematicCloud that can give me a hand with this?

[joshwilliams]

Hi,

I am pretty sure there is no default setting to set U0 to the fluid velocity. But on pitzDaily, you know the patch velocity right? Can you not just set initial velocity to the patch velocity?


Alternatively, if you mean you want the particles to move *with* the fluid (tracer particles), I would just set diameter to a really small value or density to same as fluid (unless these properties are important).

[TommyJ]

Originally Posted by joshwilliams

Hi,

I am pretty sure there is no default setting to set U0 to the fluid velocity. But on pitzDaily, you know the patch velocity right? Can you not just set initial velocity to the patch velocity?


Alternatively, if you mean you want the particles to move *with* the fluid (tracer particles), I would just set diameter to a really small value or density to same as fluid (unless these properties are important).

Hello Mr. Williams,
Thanks for the reply. I want to use this functionality just for post processing. I guess this will fit in you concept of tracer particles. The problem I am facing is not being able to assign the patch velocity to the particles.

I guess manualInjection does not have this feature... However, patchInjection will not allow me to define to positions of the particles to inject. I guess that this would be an improvement opportunity...