초록

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Abstract ▼ AI-Helper

Reynolds number similarity is basic theory of aerodynamic test. Over specification Reynolds number, It isn't seem to have much regard for this effect. But it is important factor that should never be missed out on real aerodynamic test. We have to seriously consider this factor when planning aerodyna...

Reynolds number similarity is basic theory of aerodynamic test. Over specification Reynolds number, It isn't seem to have much regard for this effect. But it is important factor that should never be missed out on real aerodynamic test. We have to seriously consider this factor when planning aerodynamic test. Reynolds number is important non-dimensional factor that defined fluid viscosity, relative velocity and characteristic length. At two dimensional section model test, there is a special characteristic that air velocity and characteristic length is changed according to section scale. And from this characteristic, Reynolds number is changed. Using this special characteristics, we measure aerodynamic coefficient on aerodynamic test by varying the Reynolds number through two dimensional section model test and analysis sensitivity of Reynolds number. Finally, verify this aero dynamic coefficient by comparing with test data with CFD program analysis data.

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