{"id":346787,"date":"2024-01-26T14:42:21","date_gmt":"2024-01-26T14:42:21","guid":{"rendered":"\/forum\/forums\/topic\/heat-source-in-2d-solid\/"},"modified":"2024-01-26T14:42:21","modified_gmt":"2024-01-26T14:42:21","slug":"heat-source-in-2d-solid","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/heat-source-in-2d-solid\/","title":{"rendered":"Heat source in 2d solid"},"content":{"rendered":"

Hello everyone,<\/p>\n

I was having trouble in defining a heat source for an electric heater. I’ve isolated my heater completly from the rest the domain to understand it bettter.<\/p>\n

It’s 2D transient conduction problem + heat source term in a rectangle. All the walls are adiabatic. The heat source is 500W, and the volume of the domain is 0.0002 m3, so I’ve defined the volumetric heat source to be 2500000 W\/m3.<\/p>\n

\"\"<\/p>\n

I would have expected the average temperature evolution would follow this equation:
\"\\rho\"<\/a>*Cp*Volume*dT\/dt = Qin<\/p>\n

However, the average temperature evolution is extremely slow and doesn’t follow the previous equation. It only follows that eq. if I force the thermal conductivity of the material to be close to zero.<\/p>\n

\"\"<\/p>\n

Why would the average temperature evolution be sensible to thermal conductivity if the heat source is the same and has adiabatic boundaries?<\/p>\n

Any help is fully appreciated.<\/p>\n","protected":false},"template":"","class_list":["post-346787","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t