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help required for input functions
Posted Feb 11, 2015, 3:16 p.m. EST Version 5.2 2 Replies
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I am very new to cosmos. I would like introduce different time dependent boundary conditions for temperature for the model www.comsol.com/showroom/gallery/474/
So, what I would like provide is
The temperature boundary condition should be applied at the boundary location 0.05 in different ways
a. a triangle function. So the temperature rises as function of time reaches a certain value and drops down to the original temperature, and this cycle repeats
b. a sinusoidal temperature profile with +1.5 and -1.5 degrees variation with 100 s width
c. a step variation - so lets say temperature rises from 0 degrees to 2 degrees in rectangle manner, remains constant at there for lets say 100 s and then drops down to the original one. then remains constant for lets say 100s and then goes up to 2 degrees and follows the same cycle.
I mean, the problem really is, how can I create time dependent boundary condition as i want for different temperature profiles!
So, what I would like provide is
The temperature boundary condition should be applied at the boundary location 0.05 in different ways
a. a triangle function. So the temperature rises as function of time reaches a certain value and drops down to the original temperature, and this cycle repeats
b. a sinusoidal temperature profile with +1.5 and -1.5 degrees variation with 100 s width
c. a step variation - so lets say temperature rises from 0 degrees to 2 degrees in rectangle manner, remains constant at there for lets say 100 s and then drops down to the original one. then remains constant for lets say 100s and then goes up to 2 degrees and follows the same cycle.
I mean, the problem really is, how can I create time dependent boundary condition as i want for different temperature profiles!
2 Replies Last Post Feb 12, 2015, 1:57 a.m. EST
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Posted:
10 years ago
I have some how managed partially to get what I wanted, but now how can I set it as a boundary condition for location 0.05 for T_right as in the example?
Also, how can I introduce square, triangle functions in similar fashion?
Also, how can I introduce square, triangle functions in similar fashion?
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Posted:
10 years ago