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Old   August 5, 2009, 10:15
Default Relaxation factor
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Fernando Herrera
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Does any one know a good algorithm for auto-adjusting a relaxation factor? I have an algorithm that is having some problems reaching the solution at low residuals. So far, I have a small routine that adjusts the value of the relaxation coefficient based on the shakingness of the residuals for a variable (in this case gas temperature). I was wondering if someone knows a good paper or another reference for a better way to auto-adjust a relaxation factor.
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Old   August 18, 2009, 07:27
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Rami Ben-Zvi
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I vaguely recall a paper by Norberto Fueyo using fuzzy logic for such a problem in the context of PHOENICS. Try googling.
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