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Navier-stokes analysis of GA(W)-2 aerofoil with deflected flap and redesign of Hansa flap for better performance (2003)

Abstract
Navier-Stokcs analysis of flow pjust GA(W)-2 aerofoil with deflected flap is presented in this paper.Extensive computations have been carried out for various flap deflections using JUMBO2D code. JUMBO2D is a twodimensional analysis code, which solves compressible Reynolds Averaged Navicr Sl.okes (RANS)equations using a vertex based finite volume space discretization, five-stage R.uiige-Kutta time integration and algebraic turbulence model. All the results have been validated by comparing with experimental values, fnter-code comparison has also been done for some specificeases.Design-analysis studios of an aerofoil-flap configuration proposed to be used in a low speed aircraft HANSA ;( designed, developed and built by NAL, Bangalore is also reported in this paper. This part of l.he work is in conUnuation of the effort reported earlier on redesign of HANSA-3 flap using CfI) where the changes were propound at the trailing edge region of the main aerofoil and on the leading edge of the llap. Implementation of those changes became difficult as this would mean modifying the trailing edge spar located in this region. Therefore, an effort has been made here to re-design the aerofoil flap configuration without affecting the main aerofoil upto the trailing edge spar.

Publication details
Download http://nal-ir.nal.res.in/1851/
Publisher Gordon and Breach
Repository NAL Institutional Repository (India)
Keywords Fluid Mechanics and Thermodynamics
Type Journal Article, PeerReviewed
Relation http://nal-ir.nal.res.in/1851/01/cfdj-apr-2003.pdf

Cited publications (1)
Computation of transonic flows with shock-induced separation using algebraic turbulence models (1995)