Numerical Simulation Research on Aerodynamic Characteristics of the Fixed Transition Airfoil

Ji Xiang Shan; Yong Huang; Xiao Yong Ma; Yong Hong Li; Jie Bai

doi:10.4028/www.scientific.net/AMM.444-445.385

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 444-445Numerical Simulation Research on Aerodynamic...

Numerical Simulation Research on Aerodynamic Characteristics of the Fixed Transition Airfoil

Abstract:

In wind tunnel tests, the size of the test model is generally much less than the real aircraft, which makes that the Re number during the test is an order of magnitude smaller than the flight Re number. The fixed transition is an important means to improve the test Re number. In the paper, the transition turbulence modelis used to simulate the flow characteristics of the test model (Re=1.5×10⁶), flight model (Re=12×10⁶) and fixed transition model. It is shows that the drag coefficient of the transition model increases and the lift coefficient decreases to compare with the test model and flight model. Compared with the flight model, the turbulent velocity profile of transition model in layer boundary is inadequate, its relative Re number is smaller, so the further amend in the aerodynamic characteristics need to be made.

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Periodical:

Applied Mechanics and Materials (Volumes 444-445)

Pages:

385-389

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.444-445.385

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Cite this paper

Online since:

October 2013

Authors:

Ji Xiang Shan, Yong Huang, Xiao Yong Ma, Yong Hong Li, Jie Bai

Keywords:

Aerodynamic Characteristics, Fixed Transition, Numerical Simulation, Reynolds Number

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