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Why are the du/dy values so low?

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Old   September 2, 2010, 18:42
Default Why are the du/dy values so low?
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ralph
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Hi,
i am using ANSYS CFX 12. I am running a simulation of an empty computational domain. i used a log law profile to input the velocity at my inlet. When i checked the du/dy in CFX POST, i get values that are very small near the wall. This shouldnt be the case. du/dy should be large near the wall. Instead of getting values like 2000 plus, i get values near the range of 50 to 60. What is wrong? Can somebody help? my simulation is for a smooth wall.
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Old   September 11, 2010, 00:56
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Anybody? i'm getting really deperate here
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Old   September 11, 2010, 06:09
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Are you aware of the hybrid versus conservative variable difference? Read the documentation about the difference between the types of variables and it may explain your question.
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