Author : National Aeronautics and Space Administration (NASA)
Release : 2018-07
Genre :
Kind : eBook
Book Rating : 082/5 ( reviews)
Book Synopsis Computational Study of the Aerodynamics and Control by Blowing of Asymmetric Vortical Flows Over Delta Wings by : National Aeronautics and Space Administration (NASA)
Download or read book Computational Study of the Aerodynamics and Control by Blowing of Asymmetric Vortical Flows Over Delta Wings written by National Aeronautics and Space Administration (NASA). This book was released on 2018-07. Available in PDF, EPUB and Kindle. Book excerpt: Some of the work is described which was done in a study of the flow field produced by tangential leading edge blowing on a 60 deg. delta wing. The flow is studied computationally by solving the Thin Layer Navier-Stokes equations. Steady state flow fields are calculated for various angles of attack and yaw, with and without the presence of tangential leading edge blowing. The effectiveness of blowing as a rolling moment control mechanism to extend the envelope of controllability is illustrated at pre- and post-stall angles of attack. The numerical grid is generated using algebraic grid generation and various interpolation and blending techniques. The jet emanates from a slot with linearly varying thickness and is introduced into the flow field using the concept of an actuator plane, thereby not requiring resolution of the jet slot geometry. The Baldwin-Lomax algebraic turbulence model is used to provide turbulent closure. The computational results are compared with those of experiments. Craig, Ken Unspecified Center ...
