MATEC Web Conf.
Volume 104, 20172017 2nd International Conference on Mechanical, Manufacturing, Modeling and Mechatronics (IC4M 2017) – 2017 2nd International Conference on Design, Engineering and Science (ICDES 2017)
|Number of page(s)||6|
|Section||Chapter 2: Engineering Simulation, Modeling and Mechatronics|
|Published online||14 April 2017|
Simulation of flow around a slender body at high angles of attack
Aeronautical Engineering Department, King Abdulaziz University, Jeddah, Saudi Arabia
a Corresponding author: firstname.lastname@example.org
LES of the flow around an ogive-cylinder body at high angles of attack were carried out to investigate the possibility of the development of asymmetric wake-vortex without the introduction of artificial perturbations. The study investigated the effect of grid resolution and scheme bias on the solution. The numerical solution was found to be sensitive to the bias in the numerical scheme. The simulation was carried for angles of attack α = 30°, 40°, 50°, 55°, and 60°. The simulation at α = 30° − 40° produced symmetric wake-vortex. At α = 50°, the wake-vortex is also symmetric but with vortex separation. At α = 60°, the wake-vortex becomes asymmetric. At 60°, the wake-vortex is highly asymmetric with vortex separation and breakdown. It was concluded that asymmetric flow around slender bodies at high angles of attack can be simulated in the absence geometrical or flow perturbations.
© The Authors, published by EDP Sciences, 2017
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