Velocity-temperature coupling method without gravity

[mwkim]

Dear OpenLB users,

I try to simulate internal flow with heat transfer without gravity (like flow in a pipe). However, in the user manual, the documented coupling method for the heat transfer is the “thermal fluid with Boussinesq approximation” only. When I see the source code “navierStokesAdvectionDiffusionCoupling.h”, the implemented temperature coupling method uses Boussinesq approximation. Another option, VelocityCoupling, seems to target concentration calculation for multicomponent fluids and the one-way coupling method.

If I want to solve the heat transfer without gravity, it looks like I should write a new coupling structure code.

Am I right? or Do I miss something?
I am totally new to LBM so that this might be a silly question.

Best regards,
MW

[FBukreev]

Dear MW,

you can setthe gravity to 0 or copy this coupler without Boussinesq force.

Best regards
Fedor

[Author]

Posts