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In the Viscous Model window, choose k-epsilon (2 eqn) for Model. Choose Realizable for k-epsilon Model. Choose Enhanced Wall Treatment for Near-Wall Treatment. Click OK as shown in the figure below.

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Next, click on Solution Methods tab on the left hand side pane. Choose Second Order Upwind for Turbulent Kinetic Energy and Turbulent Dissipation Rate. 

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Click on Monitors > Residual  and click Edit.... Set 1e-06 for k and epsilon and click OK.

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Click on Solution Initialization and click Compute from and choose inlet.Click initialize as shown below.

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Click on Run Calculation and set Number of Iterations to 1000.Click Calculate as shown below.
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The solution converges in about iterations. 

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