CFD vs FEA for thermal problems
CFD vs FEA for thermal problems
(OP)
Can anyone provide insight into which method is most accurate for heat transfer problems with forced- or free-convection mixed with conduction and radiation?
TIA!
TIA!
Tunalover





RE: CFD vs FEA for thermal problems
RE: CFD vs FEA for thermal problems
CFD is far better for most thermal analysis because it breaks the entire solution space, including the fluid, into elements, then it solves the Navier-Stokes equations (conservation of mass, energy, and momentum) until the elements satisfy the laws. It predicts conduction, radiation, AND convection, a critical advantage over FEA.
ko (www.ecooling.biz)
RE: CFD vs FEA for thermal problems
I apologize. I should have said "FDM (Finite Difference Method) instead of CFD.
Tunalover
RE: CFD vs FEA for thermal problems
ko (www.ecooling.biz)
RE: CFD vs FEA for thermal problems
As mentioned by Ko99,CFD codes typically use either finite difference or finite volume methods.
FDM, FEM and FVM are the discritization techniques to convert partial differential equations (Conservation of mass, momnetum and energy) into numerical form.
FEM is not preferred much, because they are not efficient compared to FDM,FVM.
Ansys-Flotran based on FEM. Not preferred much.
Ansys-CFX and Fluent - Based on FVM.
FVM is better compared to FDM and FEM for CFD as per the computational ecomonics concerned.
Regards,
E.Logesh
RE: CFD vs FEA for thermal problems
If you want an easy programs for your specific problem whcih doesnt require programming than i would suggest a programs called FLUENT , its a cfd software which is very user friendly
there is also a tutorial on your subject
htt
RE: CFD vs FEA for thermal problems