Analysis of supersonic flow past deep cavity with different aspect ratios
Abstract
Cavity flows find applications in weapon bays, car sunroofs, urban street canyons, ship hulls, high-speed pantograph recess etc. The objective of the present work is to provide an insight on the flow behavior in and around a deep round cavity with varying aspect ratios. Cavities of aspect ratios 0.2 and 0.5 are considered for an inflow Mach number 1.5. Numerically investigation was done using ANSYS FLUENT. Cavity flows consist an intrinsic flow mechanism that makes an extensive choice for most flow studies. Although flow past an open cavities has been numerically studied in the past, very few studies done on flow over deep cavities till date. Result reveals that the cavity geometry of reduced aspect ratio eliminates the corner vortices within the cavity and thus supplements less energy to the shear layer. The shear layer formation, its convection, impingement on trailing edge, secondary and primary eddies interaction etc are resolved. The flow oscillation characteristics changes with varying aspect ratio.
- Publication:
-
International Conference on Applied Mechanics and Optimisation (ICAMeO-2019)
- Pub Date:
- August 2019
- DOI:
- 10.1063/1.5120198
- Bibcode:
- 2019AIPC.2134b0011N