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(PLEASE HELP) Error Y+ adaption

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Old   April 23, 2011, 05:23
Default (PLEASE HELP) Error Y+ adaption
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wibi ario
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i'm simulating butterfly valve with pipe. my simulation has converged but i cannot adapt it (i use y+/y* adaption) because i get an error message warning ST malloc : out of memory resize storage on thread. what should i do guys maybe anyone have same problem with me and give me a solution..please share in here. it's really urgent friend!

i use single computer ( dual core , 4GB of RAM, 1 tera of harddisk)
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Old   April 23, 2011, 06:34
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how many elements does your mesh has?I think it's possible that you don't have enough RAM.
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Old   April 23, 2011, 07:43
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my initial mesh number is just 70.000 and after i adapt it 3 times then the cell increase significantly..it's about 1.150.000 cell. what should i do?
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Old   April 24, 2011, 07:39
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somebody please help!!!do not just read please!
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Old   May 5, 2011, 14:37
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sincity, 1,500,000 cells is a lot. You may be at the upper limit of what your computer can handle. I would suggest trying to re-mesh in gambit. Use the boundary layer options to make the boundary finer near the wall, but not everywhere. That way you may be able to get the y+ you are looking for, but not max out your memory.

the other thing you should try is running the code on a computer with more memory. I have dual core with less RAM and I can run simulations on the order of 500,000 but haven't gone to O(10^6).

first re-mesh in gambit, get the cell size as small as you need just at the wall.
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Old   May 10, 2011, 04:32
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my model has curvature geometry and a couple of small gaps its hard to make a boundary layer...if i could i would..
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