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-   -   How to apply "Convective Operator" to a scalar field? (http://www.cfd-online.com/Forums/main/122796-how-apply-convective-operator-scalar-field.html)

sam_1982 August 28, 2013 09:20

How to apply "Convective Operator" to a scalar field?
 
I know how to apply the convective operator to a vector field: http://mathworld.wolfram.com/ConvectiveOperator.html
But I need to apply this operator to a scalar field (temperature). Anyone has a suggestion?

FMDenaro August 28, 2013 10:39

Quote:

Originally Posted by sam_1982 (Post 448518)
I know how to apply the convective operator to a vector field: http://mathworld.wolfram.com/ConvectiveOperator.html
But I need to apply this operator to a scalar field (temperature). Anyone has a suggestion?

It is a scalar function therefore just write v.Grad T, for example in Cartesian Coordinates :

u dT/dx + v dT/dy + w dT/dz

duri August 28, 2013 10:56

Look at the continuity equation it shows convective operator to density scalar field.


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