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Solution > Solution Initialization > Standard Initialization



In the Solution Initialization menu that comes up, choose inlet under Compute From. The Axial Velocity for all cells will be set to 1 m/s, the Radial Velocity to 0 m/s and the Gauge Pressure to 0 Pa. The Turbulence Kinetic Energy and Dissipation Rate(scroll down to see it) values are set from the prescribed values for the Turbulence Intensity and Hydraulic Diameter at the inlet.

Click Initialize (this is easy to overlook).  Now every cell-center value for velocity components and pressure are set to the initial guess value.

This completes the problem specification. Save your project.

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The solution converges in a total of about 220 iterations. You may get a different number of iterations to convergence depending on your mesh and software version.

 
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