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how to track a moving surface temperature?
Posted 2016年6月7日 GMT-4 14:42 Version 5.2 1 Reply
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Hello
In my comsol model myy water level is decreasing gradually. I am modeling that with moving mesh deformed geometry (dg) physics. Now I need to calculate the water surface temperature each time step. I put a Line Probe along the surface of the water, but I am not sure if the probe is following the moving boundary, rather it remains unmoved. So how can I measure the temperature of the moving boundary? I need that temperature because this temperature is a input variable of some other quantity that I want to calculate also.
In my comsol model myy water level is decreasing gradually. I am modeling that with moving mesh deformed geometry (dg) physics. Now I need to calculate the water surface temperature each time step. I put a Line Probe along the surface of the water, but I am not sure if the probe is following the moving boundary, rather it remains unmoved. So how can I measure the temperature of the moving boundary? I need that temperature because this temperature is a input variable of some other quantity that I want to calculate also.
1 Reply Last Post 2016年6月7日 GMT-4 15:20
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Posted:
8 years ago
Hi
Normally the ALE moving mesh "defines a displacement of the spatial frame (x,y,z) with respect to the material frame (X,Y,Z)".
So if you have an original point P1 at material location (X,Y,Z) then if you ask for the spatial coordinate of this point (x,y,z) you should know where the point is in the deformed mesh reference.
Have a look at the attached "toy model"
Hence your temperature is T(x,y,z) that you can obtain by "Defining" a "Point Integration" over the desired point P1 of the variable "T"
--
Good luck
Ivar
Normally the ALE moving mesh "defines a displacement of the spatial frame (x,y,z) with respect to the material frame (X,Y,Z)".
So if you have an original point P1 at material location (X,Y,Z) then if you ask for the spatial coordinate of this point (x,y,z) you should know where the point is in the deformed mesh reference.
Have a look at the attached "toy model"
Hence your temperature is T(x,y,z) that you can obtain by "Defining" a "Point Integration" over the desired point P1 of the variable "T"
--
Good luck
Ivar
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