Results 251 to 260 of about 301,896 (292)

Flamelet Modeling for Supersonic Combustion

2020
Flamelet models have proven useful in enabling fast and accurate simulations of subsonic turbulent combustion. However, in supersonic combustion, these models face many challenges. The current work presents an a priori analysis of the steady flamelet model using the HIFiRE Direct Connect Rig (HDCR) dual-mode scramjet combustor.
Tomasz G. Drozda, Jesse R. Quinlan, J. Philip Drummond   +2 more
openaire   +1 more source

The dynamics of unsteady supersonic combustion

34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 1998
The dynamic behavior of an unsteady, three-dimensional supersonic flowfield with nonequilibrium chemistry was numerically analyzed. The effects of turbulence were accounted for using the concepts of large eddy simulation (LES) and implemented in an existing threedimensional solver of the compressible Navier-Stokes equations with chemical reactions ...
M. Kallenberg, E. von Lavante
openaire   +1 more source

Investigation of Mixing and Combustion in Supersonic Flows

The significance of green transportation at hypersonic speeds is the current field of research for space launchers and commercial trans atmospheric vehicles. However, due to their high speeds at Mach > 1, results in a very short residence time of the order of few milliseconds (10 -3 – 10 -4 s) minimizing the chances for air-fuel barely mix and burn.
Palateerdham, Sasi Kiran, Peri, Lakshmi Narayana Phaneendra, Ingenito, Antonella, Choubey, Gautam   +3 more
openaire   +2 more sources

Vortex mixing for supersonic combustion

Symposium (International) on Combustion, 1969
Fundamental concepts of mixing and combustion theory are examined in order to define an optimum system. By analogy with the familiar parameter “combustion intensity,” a “mixing intensity” is defined as the total mass of fuel and air mixed per unit time, volume, and density.
J. Swithebank, N.A. Chigier
openaire   +1 more source

Combustion processes in supersonic flow

Journal of Propulsion and Power, 1988
Three general classes of models that describe the processes occurring in diabatic flow in ducts having supersonic entry conditions are discussed. They are: integral techniques, finite-difference methods, and exact two-dimensional planar flame models formulated on the basis of instantaneous heat release.
openaire   +1 more source

SUPERSONIC HYDROGEN COMBUSTION STUDIES

1963
Abstract : The purpose of this test was to develop diagnostic techniques for the detection of hydrogen combustion in a hypersonic high temperature air stream. This was accomplished by ejecting hydrogen through sonic nozzles oriented normal to the airstream in the case of the flat plate model and at a 45-degree angle downstream in the case of the ...
Paul Czysz, Duane R. Burnett
openaire   +1 more source

Supersonic Combustion

2021
A. Mura, V. Sabelnikov
openaire   +1 more source

A Study of Supersonic Combustion

Journal of the Aerospace Sciences, 1960
Gross, Robert A., Chinitz, Wallace
openaire   +2 more sources

Mixing Problems in Supersonic Combustion

1989
The attainment of satisfactory supersonic combustion requires that the fuel and air be mixed to a sufficient extent at the molecular level, at a high enough temperature, so that the combustion reaction is largely complete before the gases leave the combustor. The macro-mixing must be achieved through turbulence, and molecular diffusion effects are only
J. Swithenbank, F. Boysan, B. C. R. Ewan, L. Shao, Z. Y. Yang   +4 more
openaire   +1 more source

Detonation As Combustion in a Supersonic Flow of a Combustible Mixture

Combustion, Explosion, and Shock Waves, 2022
openaire   +1 more source