# Moving heat source

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 April 10, 2013, 04:09 Moving heat source #1 Senior Member   Mohammad Shakil Ahmmed Join Date: Oct 2012 Location: AUS Posts: 132 Rep Power: 7 Hi guys, I want to simulate the following equation: $\frac{dT}{dt} -v \frac{dT}{dx}= \frac{k}{\rho Cp} \nabla^{2} T +S$ Now I am little bit confused about v, i.e velocity. In OpenFOAM, whether I have to set up as boundary condition or internal field ? Thanks in advance.