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Gaussian distribution

Posted 2 ott 2015, 06:36 GMT-4 Heat Transfer & Phase Change Version 4.2 1 Reply

Alvar Torello Massana
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Hey!

I want to know if it is possible to add a gaussian distribution as a initial condition. I am working in 1D and in the Math Module, simulating a heat transfer. I want an initial temperature distribution being like the gaussian distribution to avoid some discontinuity problems.

Thanks!
1 Reply Last Post 2 ott 2015, 08:12 GMT-4
Jeff Hiller COMSOL Employee

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Posted: 9 years ago 2 ott 2015, 08:12 GMT-4
Yes, it's as simple as typing in the expression you want in the Initial Condition node. In your case, for a normalized centered Gaussian distribution, (1/(sigma*sqrt(2*pi)))*exp(-(x^2/(2*sigma^2))) where the value of sigma is specified in the Parameters node, or whatever you wish. COMSOL's GUI is interpreted.
Jeff
Yes, it's as simple as typing in the expression you want in the Initial Condition node. In your case, for a normalized centered Gaussian distribution, (1/(sigma*sqrt(2*pi)))*exp(-(x^2/(2*sigma^2))) where the value of sigma is specified in the Parameters node, or whatever you wish. COMSOL's GUI is interpreted. Jeff

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