The interaction between shock waves and turbulent boundary layers (STBLI) plays a fundamental role in the operation of (sc)ramjet engines utilized in supersonic/hypersonic flight vehicles. In particular, the isolator part of such engines is often designed to contain a series of shock waves (shock-train) that sets the flow of incoming, atmospheric air in the optimal conditions for its subsequent...

The feasibility of using preheated kerosene and pre-evaporation to assist in liquid detonation ignition self-sustaining combustion under near-ramjet limit conditions was investigated. Additionally, the decoupling mechanisms were analyzed depth. Owing forced heat transfer effect supersonic flow on droplets, could not be achieved alone. wave still decoupled due exchange cold droplets wave, even i...

this paper is the representation of the computational and experimental methods of a new injector nozzle for a sequential port injection cng engine. the objective of this study was to review the previous research in the development of gaseous fuel injector for port injection cng engine converted from diesel engine. next, a simulation of the fuel flow of the new injector nozzle was made using flu...

nowadays biodiesel is receiving more attention as a most important renewable energy for using in diesel engines. inthis research, the application of response surface methodology (rsm) was highlighted to investigate the effects of biodiesel-diesel blends (b0, b20, b50 and b100), engine operating parameters (engine load and  speed) on co2 emission of a diesel engine. the experiments were conducte...

In order to explore plasma-assisted turbulent mixing in aerospace engines, the dielectric barrier discharge plasma actuation for of fuel droplets and oxidant air a ramjet combustor was studied using computational fluid dynamics. A two-way coupling discrete realized by Eulerian–Lagrangian simulation, action on flow modeled body force. The results show that can rearrange recirculation zone behind...

investigations were carried out to evaluate the performance of direct injection diesel engine with medium grade low heat rejection (lhr) combustion chamber and 3 mm air gap insulated piston, 3 mm air gap insulated liner, and ceramic coated cylinder head [ceramic coating with the thickness of 500 µ was made on the inside portion of the cylinder head].the engine had different operating conditions...