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Filtra

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Non - Isothermal Flow (nitf)

Posted 28 gen 2013, 04:13 GMT-5 Fluid & Heat, Heat Transfer & Phase Change, Computational Fluid Dynamics (CFD), Geometry, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.3a 1 Reply

Nithin
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Sir,

I have assigned materials to the domain elements that are required. And, in the step of inspecting the physics part after assigning materials, it is again asking for domain selection. What does that mean?

So for Non-Isothermal Fluid flow (nitf), is it okay of I select the fluid (ie.. water in my case) or should I select solids also. as heat transfer takes place from solid to fluid and viceversa.

1 Reply Last Post 28 gen 2013, 06:51 GMT-5
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 28 gen 2013, 06:51 GMT-5
Hi

NITF is normally a composed physics with thermal exchange between FLUID and Structure (solid).
So when you arrive to the physics nodes, you need to define the SOLID domains (volumes in 3D, surfaces in 2D) and the FLUID domains, then apply the relevant input, output, of fluid, outflow (of heat), fixed temperatures ... and whatever other BC (Boundary Consitions) which describe your model

--
Good luck
Ivar
Hi NITF is normally a composed physics with thermal exchange between FLUID and Structure (solid). So when you arrive to the physics nodes, you need to define the SOLID domains (volumes in 3D, surfaces in 2D) and the FLUID domains, then apply the relevant input, output, of fluid, outflow (of heat), fixed temperatures ... and whatever other BC (Boundary Consitions) which describe your model -- Good luck Ivar

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