I am trying to calculate the significance of radiation heat transfer to a fluid for a particular geometry I am modeling in Ansys. I would like to leave out radiation in the model, but I want to confirm that is it not a significant contributor first.
The problem is a gas flowing through a ceramic tube. The gas enters at room temp, and the tube is heated in the center only to over 1000 C. The result is a temperature gradient in the gas as it travels down the tube.
The best way I can think of to solve this is break the tube/gas into a few sections and give each a constant "avg" temperature for that section. Then solve each section analytically using Stefan-Boltzman, Fourier, and Newton's laws of heat transfer. Is that how you all would approach the problem? Is there a better way?
Thanks