PDE toolbox HEAT TRANSFER units of measure |
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Hi everyone,
I'm trying to solve a simple heat transfer problem with the pde toolbox. I already set geometry and boundary conditions. My equation is rho*C*T'=div(k*grad(T)) where rho is "density", C is "heat capacity" and k is "coefficient of heat conduction". My medium is ice and so i used values i found on the internet: rho=920 kg/m^3 , C=2090 J/kg*K and k=2.5 W/m*K but I obtained unreasonable results and i think the problem is in the units of measure i used because about the remainder i'm pretty sure (the problem actually isn't so difficult). Here are my questions:
1) for "heat capacity" matlab means heat capacity (J/K) or specific heat (J/K*kg)? I think the second one just seeing the equation but there is aniway an ambiguity...
2) Are the units of measure i used correct? obviously in boundary conditions setup for temperature i used Kelvin and i want to know if at the end with this settings i will have time in second (s), like i hope.
Thank you.
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