If both high temperature and pressure boundary conditions should be given for solving a problem using COMSOL / ANSYS, is it feasible?
Hello Hakeem,
In Fluent, Ansys it is possible to set a boundary condition that combines both Pressure and Temperature boundaries when the surface constitutes inlet or outlet of a specific phase (or a mixture). In that case and depending on the conditions of your problem you can use Pressure Inlet Boundary Condition (where except to the inlet pressure you also define the temperature of the fluid at the inlet), the Velocity Inlet Boundary Condition (where you need to define both magnitude and direction of the flow) and the Pressure Far Field Boundary Condition (that is used to model free stream condition at infinity).
For further information visit the following page
http://aerojet.engr.ucdavis.edu/fluenthelp/html/ug/node203.htm
Hope that i helped
Panagiotis
Are you trying to do structural analysis.
It is possible to do so using ansys, nastran/patran etc . but when you are assigning element type make sure that the assigned element type have both degrees of freedom.
@ Thomas
No - I am trying to do a thermal analysis - I need avg temperature as the output.
Yes, it is possible to do so in ansys.
Even though it is in Portuguese take a look at this work of mine and see if it helps
https://dspace.ist.utl.pt/bitstream/2295/1408136/1/Caracterizacao+estrutural+de+um+reactor+com+deformacao+por+fluencia_NEMESIS+.pdf
Yes coupled structural and thermal simulation can be performed using ANSYS. But element should be chosen in such a way that it has both thermal and structural DOF.
One simple tutorial is available on the following URL:
http://www.mece.ualberta.ca/tutorials/ansys/AT/AT.html
Hi Hakeem,
It is also possible in COMSOL to give both pressure and temperature B.C. at the same time. You need to use multi-physics. That is to say, Heat Transfer and Fluid Flow must be coupled.
@ Savas - Thanks for the info - Is there any model in the model library of COMSOL where we have similar type of problem
Yes there is same model available in the comsol 4.3 you jusy search over there you ill find it easily.
Yes. In ANSYS can be used eighter transient temperature condition or steady state. You have to select first Thermal module, and after that Structural one.
Yes. in COMSOL multi physics for expl. for Thermal Stress Analysis you can use both Solid Mechanics and Heat transfer in solids modules.
I used the both piezoelectric Device and Heat transfer in solids modules and got all stress, piezoelectric and thermal analysis results.
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