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user defined scalar

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November 27, 2006, 05:17	user defined scalar	#1
saghir Guest Posts: n/a	hi all, I defined a UDS (user defined scalar). what is definition for this "specified flux". Does it means the gradient of this UDS like d(UDS)/dx or something else? Thanks.

December 4, 2006, 05:25	Re: user defined scalar	#2
succinct Guest Posts: n/a	At a boundary for a UDS you can either specify a value for the scalar or its flux (analogy to temperature value or heat flux) So specified flux implies diffusivity x normal gradient

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