Set up a heat source in CFX in a subdomain that results in a constant temperature

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Last Post 17 October 2017

Admin

admin posted this 27 September 2017 - Last edited 08 November 2017

How to set up a heat source in CFX in a subdomain that results in a constant temperature

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Admin

admin posted this 17 October 2017

You can set a CEL expression for the heat source such as: HeatIn = HCoef * (Treq - T) where Treq is the required temperature and HCoef is a positive valued power density coefficient (units = [W m^-3 K^-1]). The size of HCoef determines how fast your heat source reacts to temperature changes. You want HCoef to be large enough to give you the behaviour you want but not so large that it makes the solver struggle. Setting the source coefficient to be -HCoef should help significantly with convergence.