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August 28, 2007, 09:18 |
High Temperatures during compression
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#1 |
Guest
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Hello During the simulation of a compression stroke (RPM:3000/min, dp=4000bar) the resulting temperatures seem too high to me (dT=150K, static enthalpy,thermal). The temperature change should be in the range of 50K. In the Infol file the following warning appears:
*** WARNING #047 *** CONVERGENCE OF ENTHALPY TO TEMPERATURE NOT ACHIEVED AT 106159 CELLS. MAXIMUM DIFFERENCE OF 0.266E+01 AT CELL 8272 Has anybody an advice for me? Thanks John |
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August 28, 2007, 10:42 |
Re: High Temperatures during compression
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#2 |
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I am using the following specht.f-user-coding:
CP=(0.0032 * T) * 1000 RETURN END |
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August 29, 2007, 04:42 |
Re: High Temperatures during compression
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#3 |
Guest
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use CONVTE.F subroutine h(t) user coding. Set H and DH/DT
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