Gamma in USRDIF????

March 31, 2003, 04:56

Hello, all I'm a little confused with the gamma value in USRDIF, what is the relation between Gamma and diffusivity coefficient? thanks.

Urgent.

April 1, 2003, 10:36

Gamma is the matrix of the diffusivity coefficients for all cells.

April 2, 2003, 09:38

Thx, for isotropic, only GAMMA(ICELL, IPHASE, 1) was used, it this true? and this number will equal the diffusivity coefficient or not? The example set it to 2, that seems not the diffusivity. What is the value come from?

April 2, 2003, 10:04

Yes, that is true. And this number equals the diffusivity coefficient. I don't know why they used 2 in the example.

March 31, 2003, 04:56	Gamma in USRDIF????	#1
windhair Guest Posts: n/a	Hello, all I'm a little confused with the gamma value in USRDIF, what is the relation between Gamma and diffusivity coefficient? thanks. Urgent.

April 1, 2003, 10:36	Re: Gamma in USRDIF????	#2
Alex Guest Posts: n/a	Gamma is the matrix of the diffusivity coefficients for all cells.

April 2, 2003, 09:38	Re: Gamma in USRDIF????	#3
windhair Guest Posts: n/a	Thx, for isotropic, only GAMMA(ICELL, IPHASE, 1) was used, it this true? and this number will equal the diffusivity coefficient or not? The example set it to 2, that seems not the diffusivity. What is the value come from?

April 2, 2003, 10:04	Re: Gamma in USRDIF????	#4
Alex Guest Posts: n/a	Yes, that is true. And this number equals the diffusivity coefficient. I don't know why they used 2 in the example.

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