Download - Base 11 Presentation 2
Transcript
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Investigation of the Limitation of XFLR5 for Aerodynamic Predictions at Low Reynolds Numbers
PHILIP CHAN, FRANCISCO GOMEZ, AND HUGO VILLAFANA
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Micro Air Vehicles (MAV)
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Wind Tunnel Characterization
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30 m/s Over-plot
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5 m/s Over-plot
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Force Balance Calibration and Alignment
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XFLR5
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Lift vs. α (100k Re #)
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Selig Lift Over-plot (100k Re #)
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Uncertainty Comparison & Separation Bubble Effect (40k, 180k Re #)
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CP vs x & CL vs α (180k Re #)
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Wake Experiential Correction (180k Re #)
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Drag vs. α (100k Re #)
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Selig Drag Over-plot (100k Re #)
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Uncertainty Comparison (40k, 180k Re #)
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Conclusion•Lift and drag trend •LSB from inflection angle•Stall angle
Does XFLR5 work?