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Wall superheat bisection algorithm failed to converge

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Old   January 4, 2013, 03:48
Default Wall superheat bisection algorithm failed to converge
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P. Zhang
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Dear all,
I met a problem when I try to simulate a subcooled boiling case with RPI model

When I run a steady state calculation of subcoold boiling flow in a central heated tube, the calculation is all right.

When I change it to an unsteady case, I got this error message:

Wall superheat bisection algorithm failed to converge. Continue with wall superheat = 1.0000072E-01 of minimum relative error = 4.5705986E-2

Is there anyone can offer some help?


Zhang Peng
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boiling flow, cfx

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