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FLUENT mesh dependent memory requirements?

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Old   April 3, 2013, 18:49
Default FLUENT mesh dependent memory requirements?
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Colin Fiola
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Hello,
I am trying to run a compressible simulation on a 8 million point mesh. My mesh quality is good and there are no issues when mesh is checked in FLUENT. It is taking me 8000 second per iteration. I have a 3.6 ghz Xeon 8 core processor with 16 gigs of ram. I am maxing out my resources when running the sim, so is there a recommended amount of ram per million nodes in mesh? I know some other programs require 3GB per million nodes, meaning I would need at least 24GB. Does this sound right?
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Old   April 3, 2013, 23:14
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Sijal Ahmed Memon (turboenginner@gmail.com)
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For fluent with DP and coupled solver, the optimum mesh size would be 1 million nodes / 4 GB RAM . Please share your experience.
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Old   April 4, 2013, 10:24
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I am more looking for developer minimums. I have noticed that about 3-4Gb per million nodes in mesh runs smoothly. I would like to know what ANSYS suggests. I am trying to get something official so my department chair will pay for more RAM...
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Old   April 4, 2013, 14:27
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Memory requirement for CFX is almost half. So you can run 1.6-1.7 million case with ease on 4GB machine.
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