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"High Mach Number Flow Exists"--Problem with flow simulation/ cylinder local rotation at high RPM

Question asked by Asif Nafi on Dec 2, 2015
Latest reply on Dec 3, 2015 by Kim KyuHyung

Experiment Name : Flow over a wing with leading-edge rotation.

Analysis Type- External Flow analysis(Time Dependent Analysis)

Airfoil- NACA0024 (0.2m chord,0.6m span),

Leading-Edge Cylinder- 25mm dia,rotating at 400rad/s , 3820RPM clockwise.

freestream Velocity-5m/s

AOA-5 degree

 

When i started the simulation mesh generation finished properly no prb faced.

But after some iterations "High Mach Number Flow Exists" was shown in solver..ALSO the PRESSURE n VELOCITY plot was totally green no changes there..

I have attached the main files. Plz take a look.

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