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-   -   dieselFoam: strange unit of dQ (http://www.cfd-online.com/Forums/openfoam/65609-dieselfoam-strange-unit-dq.html)

stephan June 20, 2009 13:19

dieselFoam: strange unit of dQ
 
Hi, i am a little confused by the unit of dQ given in createFields.H. There is sth written like dimensionSet(1,-3,-1,0,0,0,0) which corresponds to kg/(m^3*s). On the other hand dQ is calculated by RR(i)*h(T)/cp which should have a unit like kg/(m^3*s)*J/kg*1/(J/(kg*K))=kg*K/(m^3*s) in hEqn.H. actually both of them look quite strange. i would expect sth like energy per time and volume?!(in case it should be chemical heat release rate) any help would be appreciated! regards stephan


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