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CFD over rectangular wing with multi winglets

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Old   April 17, 2014, 16:17
Default CFD over rectangular wing with multi winglets
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Geetesh Waghela
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hey, i am simulating flow over a rectangular wing of semi span 300mm and chord of 75mm at the root with taper ratio as 1.
i want to validate with the wind tunnel results.
i have used naca 0015 airfoil.
i have used spalart-allamaras turbulence model and inlet velocity as 20m/s, outlet gauge pressure as 0.
rest everything is set as wall.
i am getting floating point error mostly and when i reduced reference values by half, my continuity equation is diverging in range on 1e+05.
what can i do now to converge the solution??
i would like to proceed for multi winglets after i get this right.
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Old   April 23, 2014, 06:49
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venki
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wch solver your using ?
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Old   April 23, 2014, 15:34
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Geetesh Waghela
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i am using ansys fluent 14.5
i tried using k omega sst model also for solving but the results i am getting are varying from experimental data.
since the domain is restricted to a particular size, will it be accurate to use spalart allamaras model?
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divergence detected, reversed flow, spalart allmaras, wing

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