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How to active "3rd Order Upwind Monotonicity Preserving" ? |
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#1 |
New Member
Join Date: Dec 2009
Posts: 6
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In flow-3D user site, I read a tip of choosing an Advection Method. it says:
IORDER=1 1st Order Momentum Advection IORDER=2 2nd Order Centered IORDER=3 2nd Order Upwind Monotonicity Preserving IORDER=4 3rd Order Upwind Monotonicity Preserving but in Flow-3D ver. 10.01, there is not "IORDER=4 3rd Order Upwind Monotonicity Preserving" at all. Even I change the value of iorder in prepin file, it doesn't appear when the prepin file is opened. So I woul like to ask: Is there really a "3rd Order Upwind Monotonicity Preserving" in the Flow-3D? and if, how to activate it? thanks! |
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#2 |
Member
MC
Join Date: Mar 2009
Posts: 56
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The IORDER=4 3rd Order Upwind Monotonicity Preserving was removed because it had not been correctly implemented near solid and mesh boundaries, and it would have been counter-productive to make it right. If it can be shown to be useful it may be added back in.
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