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Display results on a different geometry
Posted Mar 24, 2014, 6:44 a.m. EDT 4 Replies
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Hi,
I've got the following problem:
I'm calculating the temperature and displacement field in an axis-symmetric pressure plate (basically a circular ring) of a clutch system using the "Weak Form"-Physics Interface (Comsol 4.4).
The model will later be coupled with a exterior pressure field, which demands a dimension-free notation.
Thus my circular ring has dimensions of [0.66-1]x[0-1] (radius-height).
For presentation purposes I'd like to display my 2D field results on the original geometry of the pressure plate ([0.074 m - 0.1125 m]x[0 m - 0.0123m]).
How do I do that? Any ideas?
Thank you,
Simon
I've got the following problem:
I'm calculating the temperature and displacement field in an axis-symmetric pressure plate (basically a circular ring) of a clutch system using the "Weak Form"-Physics Interface (Comsol 4.4).
The model will later be coupled with a exterior pressure field, which demands a dimension-free notation.
Thus my circular ring has dimensions of [0.66-1]x[0-1] (radius-height).
For presentation purposes I'd like to display my 2D field results on the original geometry of the pressure plate ([0.074 m - 0.1125 m]x[0 m - 0.0123m]).
How do I do that? Any ideas?
Thank you,
Simon
4 Replies Last Post Mar 25, 2014, 5:47 a.m. EDT
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Posted:
1 decade ago
Hi,
I may have found a way to solve my problem:
In my dimension-free model (Model 1) I am defining a general extrusion. In the Desination Map of the extrusion I am entering the scaling factor between my two geometries. Then I am adding a new component with the geometry with dimensions and a random PDGL (Model 2).
After computing both models I am creating a 2D Plot for the model 2 with the Expression comp1.genext1(T1).
So I am basically mapping my Solutions from the dimension-free geometry to the geometry with dimensions.
This works so far, but the expression is only evaluated for the initial timestep. Changing the timestep in the plot-window doesn't help.
How do I specify a timestep in the expression comp1.genext1(T1)?
Thank you,
Simon
PS: Of course I am open to other solutions for the initial problem...
I may have found a way to solve my problem:
In my dimension-free model (Model 1) I am defining a general extrusion. In the Desination Map of the extrusion I am entering the scaling factor between my two geometries. Then I am adding a new component with the geometry with dimensions and a random PDGL (Model 2).
After computing both models I am creating a 2D Plot for the model 2 with the Expression comp1.genext1(T1).
So I am basically mapping my Solutions from the dimension-free geometry to the geometry with dimensions.
This works so far, but the expression is only evaluated for the initial timestep. Changing the timestep in the plot-window doesn't help.
How do I specify a timestep in the expression comp1.genext1(T1)?
Thank you,
Simon
PS: Of course I am open to other solutions for the initial problem...
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Posted:
1 decade ago
Hi,
Yes, you can specify a time using the "at" operator. It can be any time in the simulation time span; COMSOL uses interpolation in between the specified output times. For example,
comp1.genext1(at(5,T1))
uses T1 evaluated at the time 5 s.
Best regards,
Magnus Ringh, COMSOL
Yes, you can specify a time using the "at" operator. It can be any time in the simulation time span; COMSOL uses interpolation in between the specified output times. For example,
comp1.genext1(at(5,T1))
uses T1 evaluated at the time 5 s.
Best regards,
Magnus Ringh, COMSOL
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Posted:
1 decade ago
Hi,
thank you Magnus for your answer. Unfortunately, the 2D Plot still displays only the initial timestep.
Maybe thats the wrong way.
Does anyone have a better idea to display my dimensionsfree solution on the original geometry?
Thank you,
Simon
thank you Magnus for your answer. Unfortunately, the 2D Plot still displays only the initial timestep.
Maybe thats the wrong way.
Does anyone have a better idea to display my dimensionsfree solution on the original geometry?
Thank you,
Simon
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Posted:
1 decade ago
Hi,
I found a solution:
First of all - solving both components in one study always helps *g*
And I needed to scale the source map and not the destination map.
Thank you for your help,
Simon
I found a solution:
First of all - solving both components in one study always helps *g*
And I needed to scale the source map and not the destination map.
Thank you for your help,
Simon