Mona Golbabaei-Asl

... Author , E-mail The Corresponding Author , Rouhollah Torabi b , E-mail The Corresponding Author and S. Ahmad Nourbakhsh a , E-mail The ... FE analyses and results 3.2.1. Loading calculation 3.2.2. Distribution of simulated stresses 4. Centrifugal-pump testing 5. Conclusions ...

Energy deposition is a robust technique for various high-speed flow control applications including drag reduction. A numerical study of energy deposition is performed for perfect gas flow approaching a blunt cylinder at Mach 3. The energy deposition is simulated by a high-temperature filament injected instantaneously 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.

In this paper, the application of energy deposition ahead of a blunt cylinder at Mach 3 is investigated. The energy deposition is simulated as a instantaneous high temperature filament in front of the cylinder. A commercial numerical code is used to solve for the Euler ...