In this work, a new configuration of strut-based scramjet is proposed, and series simulations are conducted to investigate its possibility practical application. The simulation results verified via the classical DLR ramjet an experiment on connected pipe facility. inlet area ( A in </...

The derivation of a control-design model (CDM) of the 6-DOF rigid body dynamics of a hypersonic vehicle is presented in this paper. The development of the CDM is based on curve t approximation of the forces and moments on the vehicle, making the model suitable for control design. In order to have an implementable curve t algorithm, the forces and moments have been divided into their components ...

In this study, a flamelet-based framework is proposed for quantifying the uncertainties induced by chemical-kinetic rates on the aerothermochemical field in numerical simulations of high-speed turbulent combustion. For this purpose, this report is divided into the following sections. In Section 2, a short background on flamelet physics is provided. In Section 3, the RANS formulation of the oute...

Hypersonic air-breathing engines rely on scramjet combustion processes, which involvehigh speed, compressible, and highly turbulent flows. The combustion environment andthe turbulent flames at the heart of these engines are difficult to simulate and study in thelaboratory under well controlled conditions. Typically, wind-tunnel testing is performedthat more closely approximates ...

The paper reviews recent studies of supersonic/hypersonic flow and shock wave control using plasma energy addition and magnetohydrodynamics (MHD), focusing on the work by the Princeton University group and their collaborators. Applications include sonic boom mitigation and optimization of scramjet inlets. Experimental and computational studies of interaction of oblique shocks with laser-generat...

With the development of hypersonic air-breathing propulsion systems, such as supersonic combustion ramjet (Scramjet) and rocket-based combined cycle (RBCC) engines, mixing process airstream with fuel in engine combustor has been drawing more attention. Due to compressibility effects, a condition is significantly inhibited. In present paper, novel strategy wall-jet induced shock waves (WJISW) pu...

Activities in the area of scramjet fuel-air mixing and combustion associated with the Research and Technology Organization Working Group on Technologies for Propelled Hypersonic Flight are described. Work discussed in this paper has centered on the design of two basic experiments for studying the mixing and combustion of fuel and air in a scramjet. Simulations were conducted to aid in the desig...