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-   -   1D burgers equation - first order derivative (https://www.cfd-online.com/Forums/openfoam/98566-1d-burgers-equation-first-order-derivative.html)

doubtsincfd March 14, 2012 00:13
1D burgers equation - first order derivative
 
How can I implement the first order derivative in OF? For eg 1D burger's equation:

du/dt+u du/dx = nu d2u/dx2

akidess March 14, 2012 02:42
Does this work?

Code:
fvm::ddt(U)+U*fvm::grad(U)=fvm::laplacian(nu,U)


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