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Dot product of flow direction and area normal is zero |
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#1 |
New Member
Solaleh
Join Date: Feb 2023
Posts: 1
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I have received an error in start fluent;
"Dot product of flow direction and area normal is zero, check the specified flow direction on mass Flow inlet boundary " How can i fix this?! |
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#2 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,728
Rep Power: 66 ![]() ![]() ![]() |
Go to boundary conditions and edit the conditions for your surface. The specified flow direction vector is perpendicular to the boundary's normal vector. Give it the correct vector.
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Tags |
dot product, error, zero area faces |
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