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Delta-integration from physic mathematic
Posted 2011年1月11日 GMT-5 11:44 Version 4.1 1 Reply
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Hi all,
I need to post-process an integration containing a 3d-delta function...The integration that I have to perform is written :
int_{dom(2)}F(x,y,z)*delta(x-x_0)*delta(y-y_0)dxdydz (1)
where the volumic-integration is performed inside a geometric complexe object (dom(2)).
I use the application weak form and the integration coupling variable to solve the previous integration...Unfortunately, I do not know what are the right parameters to type in the comsol-GUI in the "boundary settings" (weak ? dweak ?). The example that I found in the comsol's guide (to solve Poisson's equation for a delta source) does not work in the previous problem.
Have you some solutions to perform this integration with comsol ? What are the different steps to write (1) in comsol ?
Thank you for your help
Marc Vanderbeck
I need to post-process an integration containing a 3d-delta function...The integration that I have to perform is written :
int_{dom(2)}F(x,y,z)*delta(x-x_0)*delta(y-y_0)dxdydz (1)
where the volumic-integration is performed inside a geometric complexe object (dom(2)).
I use the application weak form and the integration coupling variable to solve the previous integration...Unfortunately, I do not know what are the right parameters to type in the comsol-GUI in the "boundary settings" (weak ? dweak ?). The example that I found in the comsol's guide (to solve Poisson's equation for a delta source) does not work in the previous problem.
Have you some solutions to perform this integration with comsol ? What are the different steps to write (1) in comsol ?
Thank you for your help
Marc Vanderbeck
1 Reply Last Post 2011年1月11日 GMT-5 13:38
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Posted:
1 decade ago
No one ?