Application and Characterization of Energy Deposition in High Speed Flow Control

Download or read book Application and Characterization of Energy Deposition in High Speed Flow Control written by Mona Golbabaei-Asl and published by . This book was released on 2014 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy deposition is a robust technique for various high speed flow control applications including drag reduction. A numerical study is performed for perfect gas flow approaching a blunt cylinder at Mach 3. The energy deposition is simulated by a high temperature filament injected in front of the cylinder. The effect of important dimensionless parameters is studied to characterize the drag modification. The results indicate a saturation effect on maximum drag reduction at higher magnitudes of energy deposition. The computations reveal that the discharge location of the filament does not significantly impact the drag. A phenomenological examination of the interaction is performed. The effectiveness and efficiency of the filament on drag reduction are investigated. A one-dimensional analytical approach is studied to describe the numerical results.