Momentum source value
Hello all,
Could anybody Explain how to guess the momentum source value in a tube please. I'm simulaing the flow in an open end tube which has the momentum source inside. I expect 0.1 m/s velocity at the position adding the momentum . I know the cross section area of the tube and the volume of the 3D region of the source and the unit of the momentum source is kg/m^-2s^-2. Does any body have an idea how to guess it ( equation and method ) I'm looking forward to hear the kindly help soon, @T_T@ Thank you in advance. Jackie |
Re: Momentum source value
Hi Jackie,
The momentum source basically specifies a pressure gradient, however you can modify modify it to get a specific speed. The following settings will do the trick: MOMENTUM SOURCE: Momentum Source X Component = -C*(u-uspec) Momentum Source Y Component = -C*(v-vspec) Momentum Source Z Component = -C*(w-wspec) Momentum Source Coefficient = -C END where C is a very large number and uspec, vspec, and wspec, are the specified velocities. Regards, Robin |
Re: Momentum source value
How could I know C value Robin.
Jackie, |
Re: Momentum source value
The actual value does not matter, it just has to be a big number.
Robin |
Re: Momentum source value
Thank you very much Robin.
Jackie |
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