A Design Framework for Subsonic Low-Speed Wind Tunnels

摘要: Wind tunnels can be used to perceive the aerodynamic behaviour around objects by sending streamlined air at suitable speeds. This paper entails the details of work focusing on building a design framework for subsonic low-speed (wind speeds less than a Mach number of 0.3) wind tunnels with a medium-scale test section, which reduces the mathematical modelling and analysis required in designing a wind tunnel from scratch, and in turn, reduces the cost. The approach to building the design framework is based on non-dimensional parameters of the component geometry. In order to obtain the most optimum non-dimensional parameters for each critical component (mainly contraction and diffuser), a computational fluid dynamics (CFD) analysis followed by a MOGA (Multi-Objective Genetic Algorithm) design optimization is performed using the ANSYS software package. A combined model of contraction, test …