Learning Forum

[ssshivam]

I am doing conjugate heat transfer problem. I have simulated my CFD domain and can see temperature variations in both solid and fluid domain. I HAVE RUN THIS SIMULATION IN FLUENT STAND ALONE. Now, I want to do analysis of solid domain (buckling phenomenon) using ANSYS Mehcanical. I have case and data file form fluent stand alone.

Please help me with step to step guidance for doing structural analysis using thermal load from fluent.

[Rob]

Have a look at the FSI Mapping tools in Fluent to shift the temperature over to Mech. You then apply that as a boundary condition in Mech and things may bend. 

[ssshivam]

Ty sir, Also I am applying Eulerian multiphase condition for 3D domain, I am getting these kind of contours which seems unreasonable. I feel VOF for water should be =1 as water comes out of the jet and falls on solid strip. But contours shows that VOF of water < 1

Please help me regarding same.

 

[Rob]

Agreed, have you got enough mesh to fully resolve the water jet? If not it'll tend to diffuse giving the result you're seeing. 

 

[ssshivam]

 

we have applied CHF boiling model to our multi-domain jet impingement geometry with heated solid as target plate. Model is applied on 2D axis symmetric single nozzle with successive convergence. Now, we are trying to implement same model for our 3D geometry, here some issues are occurring.

Fluent console is giving divergence when flow approaching towards solid domain. This problem is only observed when Boiling model is switched ON. When Boiling model is switched OFF successful conjugate heat transfer can be observed. 

 

Number of meshes and time steps already tried.

 

 

 

[Rob]

How does the flow get around the plate?

[ssshivam]

Sir, its a jet impingement problem. As soon as the flow hits the solid plate, its diverges (blows up). Hence flow around the plate cant be observed from simulation.