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April 30, 2020 at 12:14 pm
Walburga Kerschbaumer
SubscriberHello,
Â
which criteria for the near wall mesh do I have to meet when using the k-epsilon model? I set up a simulation of an exhaust manifold (hot gas flow).
Â
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April 30, 2020 at 12:24 pm
DrAmine
Ansys EmployeeDo not use Epsilon based turbulence model. Use the industry standard SST model which has an insensitive wall treatment. Ideally (that is the ideal) you require 10-15 inflation layers and yplus around 1. However this also depends on the Pr number: for high Pr numbers the yplus requirement scales as the root of Pr.
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April 30, 2020 at 12:28 pm
Walburga Kerschbaumer
Subscriber
Hello,
Â
which criteria for the near wall mesh do I have to meet when using the k-epsilon model? I set up a simulation of an exhaust manifold (hot gas flow).
Â
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April 30, 2020 at 12:30 pm
Walburga Kerschbaumer
SubscriberOk. Thank you very much for the information and answering so fast.
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May 12, 2020 at 10:34 pm
mutlaq404
Subscriber
Do not use Epsilon based turbulence model. Use the industry standard SST model which has an insensitive wall treatment. Ideally (that is the ideal) you require 10-15 inflation layers and yplus around 1. However this also depends on the Pr number: for high Pr numbers the yplus requirement scales as the root of Pr.
Â
Hello,Â
can you answer me, please?
the value of y+ appears in the fluent very very small like 0.41 or 0.174Â Do not exceed 10 how i can fixed this?
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