CFD simulation of flow past MAV wings

Pradeep, Shetty and Subrahmanya, MB and Kulkarni, DS and Rajani, BN (2011) CFD simulation of flow past MAV wings. In: Symposium on Applied Aerodynamics and Design of Aerospace Vehicle (SAROD 2011), November 16-18, 2011, Bangalore, India.

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    Abstract

    Turbulent flow past low aspect ratio (AR) thin wing used for two different MAV (Micro Air Vehicles) configurations viz. Black Kite and Golden Hawk has been carried out in order to analyze their aerodynamic characteristics. The Reynolds (Re) number for these two wings based on the root chord are 2.4´105 and 1.72´ 105 respectively. These simulations have been carried out using the in-house flow solution code to solve the Unsteady Reynolds Averaged Navier Stokes (URANS) equations coupled to different turbulence models. The standard k-e model has been used to simulate the turbulence for the Black Kite wing. The influence of three different turbulence models (standard k-e, SA and SST) in predicting the aerodynamic coefficient has been studied for the Golden Hawk configuration. In the present study the aerodynamic characteristics computed for the two wing configurations are compared with the CSIR-NAL experiments. The cross flow patterns and the tip vortex for the Golden Hawk wing are presented and discussed.

    Item Type: Conference or Workshop Item (Paper)
    Uncontrolled Keywords: Multiblock structured grid, URANS, Finite volume solver, Low Re flow, Turbulence model, Low aspect ratio wing, Black Kite, Golden Hawk
    Subjects: ENGINEERING > Fluid Mechanics and Thermodynamics
    Division/Department: Other, Computational and Theoretical Fluid Dynamics Division, Computational and Theoretical Fluid Dynamics Division, Computational and Theoretical Fluid Dynamics Division
    Depositing User: Smt Bhagya Rekha KA
    Date Deposited: 18 Jan 2012 16:01
    Last Modified: 18 Jan 2012 16:01
    URI: http://nal-ir.nal.res.in/id/eprint/10242

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