NUNMERICAL STUDY OF SKIN FRICTION DRAG REDUCTION BY SURFACE HEATING

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KHAKI R.; BOROUMAND M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: AMIRKABIR Year:2005 | Volume:16 | Issue:62-B Page(s): 29-37

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Information Journal Paper

Title

NUNMERICAL STUDY OF SKIN FRICTION DRAG REDUCTION BY SURFACE HEATING

Author(s)

KHAKI R. | BOROUMAND M. | Issue Writer Certificate

Keywords

DRAG REDUCTION

FRICTION DRAG

AXISYMMETRIC BODY

THIN LAYER NAVIER STOKES (TLNS)

Abstract

A new technique for reducing the drag of either existing or new aircraft configuration was investigated. Heating the surface under a turbulent boundary layer reduces the turbulent skin friction. In present paper, friction DRAG REDUCTION in axisymmetric bodies is investigated numerically, applying heating the surface in the turbulent boundary layer. For numerical analysis, an axisymmetric model, nearly like an airplane body, with a length of 0.5 m and taper ratio of 10 is considered which, quarter length of its tip and end has elliptical form and the others is flat. Also, axisymmetric form of the thin layer Navier Stokes equations using Baldwin-Lomax turbulent model is applied for the numerical simulation. Detecting the best of the heating area is performed by dividing the flat section of the model to five equal segments and therefore, effects of temperature variation in various segments and changing number of heated segments are investigated. Numerical results show that warming the first segment to 100°c, causes approximately 25 percent reduction in drag force.

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APA: Copy

KHAKI, R., & BOROUMAND, M.. (2005). NUNMERICAL STUDY OF SKIN FRICTION DRAG REDUCTION BY SURFACE HEATING. AMIRKABIR, 16(62-B), 29-37. SID. https://sid.ir/paper/537706/en

Vancouver: Copy

KHAKI R., BOROUMAND M.. NUNMERICAL STUDY OF SKIN FRICTION DRAG REDUCTION BY SURFACE HEATING. AMIRKABIR[Internet]. 2005;16(62-B):29-37. Available from: https://sid.ir/paper/537706/en

IEEE: Copy

R. KHAKI, and M. BOROUMAND, “NUNMERICAL STUDY OF SKIN FRICTION DRAG REDUCTION BY SURFACE HEATING,” AMIRKABIR, vol. 16, no. 62-B, pp. 29–37, 2005, [Online]. Available: https://sid.ir/paper/537706/en

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