Modifications to the stock chtMultiRegionFoam heat transfer solver to suit CTF lab purposes.
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Multi-time-stepping: To address the time-scale disparities between solid- and fluid-phase heat transfer, calculate a scaling factor based on the ratio of Courant number to Diffusion number and use this to scale the fluid time-step. Use this scale time-step as the solid time-step; solve the solid-phase heat transfer only after this time-step has elapsed since the previous solve.
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Reacting flows.