Computation of Two Dimensional Flow past Multi Element Airfoils

Singh, Manish K and Dhanalakshmi, K and Mathur, JS (2009) Computation of Two Dimensional Flow past Multi Element Airfoils. Project Report. National Aerospace Laboratories, Bangalore.

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    Abstract

    Air connectivity network is an important part of the overall connectivity network of any country. This becomes even more crucial for the interior regions, which have no access to sea routes and have inadequate road and rail connectivity due to various factors. In India there is uniform distribution of airports throughout the country but only a few of them are currently used because of poor infrastructure availability at these airports. In this connection NAL has taken initiative to design and develop a 70-seater Regional Transport Aircraft (RTA) which is suitable for Indian conditions and can operate with minimum airport infrastructure requirements. An efficient high lift system is one of the key technical requirements to achieve the goal set for RTA. JUMBO2D, a multi-block structured viscous code has been used to make preliminary analysis of the proposed high lift system for the RTA. The configuration consists of three elements, namely, the main airfoil with nose droop, a vane and a flap. In the present work the code has been revalidated by computing for NLF (1) 0416 airfoil and NACA 1410 airfoil with double slotted flap. The computed results compare very well with the experimental data. The proposed high lift configuration of RTA has then been analyzed in detail for both take-off and landing conditions with and without nose-droop.

    Item Type: Proj.Doc/Technical Report (Project Report)
    Uncontrolled Keywords: Multi-element airfoils, NLF(1) 0416, NACA 1410 Double Slotted airfoils, JUMBO2D Code, RANS Computations, High lift System, Nose Droop, RTA Double Slotted Flap
    Subjects: AERONAUTICS > Aerodynamics
    Division/Department: Computational and Theoretical Fluid Dynamics Division, Computational and Theoretical Fluid Dynamics Division, Computational and Theoretical Fluid Dynamics Division
    Depositing User: Mr Manish Singh
    Date Deposited: 28 Jul 2010 13:35
    Last Modified: 28 Jul 2010 14:15
    URI: http://nal-ir.nal.res.in/id/eprint/8841

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