TITLE:
Evaluating Oblique Shock Waves Characteristics on a Double-Wedge Airfoil
AUTHORS:
Jorge Luis Garrido Tellez, Eusebio Hernandez-Martinez, Miguel Toledo Velazquez, Jose Angel Ortega Herrera, Pedro Quinto-Diez
KEYWORDS:
Oblique Shock Waves, Supersonic Airfoil, Flow Visualization, Numerical Simulation, Schlieren Method
JOURNAL NAME:
Engineering,
Vol.8 No.12,
December
22,
2016
ABSTRACT: Numerical and experimental study to evaluate aerodynamic characteristics in supersonic ow over a double wedge airfoil is carried out using Fluent software and a supersonic wind tunnel, respectively. The Schlieren visualization method was also used to develop the experimental step of this study. The supersonic wind tunnel reached a proximately a Mach number of 1.8. The result got showed oblique shock waves visualization on double-wedge airfoil and the numerical simulation, the flow behavior as function of Mach number, pressure, temperature and density in the flow field on the computational model. The simulation allowed to observe the shock wave and the expansion fan in the leading and tailing edge of double-wedge airfoil. From the numerical and experimental comparison, an agreement at the shock wave angle and Mach number was observed, with a difference about 1.17% from the experimental results.