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Using solver manager with multiple solutions

Posted Feb 14, 2012, 6:44 a.m. EST Fluid & Heat, Computational Fluid Dynamics (CFD) Version 4.2a 0 Replies

Robert Low
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I am running a nonisothermal turbulent flow model at present with the transport of dilute species physics interface enabled. The model is of a jet of gas entering an air stream and then flowing over a hot surface and out. The range of gas jet velocities I want to cover is quite large and I've found it best to approach the solution by solving the flow field first then solving the concentration field with the saved values of the turbulent flow field as inputs. (The effective diffusivity for the concentration model is the sum of Fickian diffusion coefficient and turbulent diffusivity calculated from the flow field).

Is it possible to run the solver first with just the flow field enabled and with parametric continuation on to let me step through the desired gas jet velocities, then to switch off the flow field solution and enable the concentration solution and have it pick up the stored flow fields? I guess it should be but I am not sure how to do this.

The obvious question - why not solve both together - my machine doesn't have enough RAM and also the coupling of the turbulent diffusivity and flow field in seems to cause some issues. It's happier to solve flow first then concentration.
0 Replies Last Post Feb 14, 2012, 6:44 a.m. EST
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