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Laminar Flow Module Fluid Properties Input
Posted 25.01.2017, 08:01 GMT-5 Fluid & Heat, Heat Transfer & Phase Change, Computational Fluid Dynamics (CFD), Materials, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 5.1 1 Reply
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Hi everyone,
I am using the Laminar Flow Module to simulate convection in an annulus.
I do not understand completely the impact of the "Input Temperature" of the Laminar Flow Node found in
"Laminar Flow -> Fluid Properties -> Model Inputs -> Temperature".
When I set a constant temperature my model is converging. As I have solid domains around my annulus I can set the Heat transfer's domain's temperature as my input temperature instead (ht) and also I can set the Temperature of my non isothermal flow in that annulus as my input temperature instead (nitf1).
However, when I set either ht or nitf1 as my input temperature of "Laminar Flow-> Fluid Properties-> Model Inputs -> Temperature" my model does not converge anymore. As I do not understand the real meaning of this temperature I cannot see why. Maybe the answer is really simple so please let me know if anyone has an idea.
It would be helpful if someone could explain the meaning of this input temperature for this 3 cases (constant T, ht, nitf1).
Best regards
Jan
I am using the Laminar Flow Module to simulate convection in an annulus.
I do not understand completely the impact of the "Input Temperature" of the Laminar Flow Node found in
"Laminar Flow -> Fluid Properties -> Model Inputs -> Temperature".
When I set a constant temperature my model is converging. As I have solid domains around my annulus I can set the Heat transfer's domain's temperature as my input temperature instead (ht) and also I can set the Temperature of my non isothermal flow in that annulus as my input temperature instead (nitf1).
However, when I set either ht or nitf1 as my input temperature of "Laminar Flow-> Fluid Properties-> Model Inputs -> Temperature" my model does not converge anymore. As I do not understand the real meaning of this temperature I cannot see why. Maybe the answer is really simple so please let me know if anyone has an idea.
It would be helpful if someone could explain the meaning of this input temperature for this 3 cases (constant T, ht, nitf1).
Best regards
Jan
1 Reply Last Post 25.01.2017, 13:07 GMT-5
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Posted:
8 years ago
Make sure you have solid node in heat transfer node for solids. In laminar flow node keep only flow domain.