Supersonic combustion of hydrocarbon fuels in a three-dimensional Mach 8 scramjet

2017 ◽  
Author(s):  
Zachary Denman
Keyword(s):  
Three Dimensional ◽  
Hydrocarbon Fuels ◽  
Supersonic Combustion

Simulation of Supersonic Combustion in Three-Dimensional Configurations

2009 ◽  
Vol 25 (6) ◽  
pp. 1233-1239 ◽  
Author(s):  
P. G. Keistler ◽  
H. A. Hassan ◽  
X. Xiao
Keyword(s):  
Three Dimensional ◽  
Supersonic Combustion

Numerical analysis of three-dimensional effects in unsteady supersonic combustion

1997 ◽  
Author(s):  
M. Kallenberg ◽  
E. von Lavante ◽  
M. Kallenberg ◽  
E. von Lavante
Keyword(s):  
Numerical Analysis ◽  
Three Dimensional ◽  
Supersonic Combustion ◽  
Dimensional Effects

Three-dimensional upwind parabolized Navier-Stokes code for supersonic combustion flowfields

10.2514/3.475 ◽  
1993 ◽  
Vol 7 (4) ◽  
pp. 661-667 ◽  
Author(s):  
Ganesh Wadawadigi ◽  
John C. Tannehill ◽  
Philip E. Buelow ◽  
Scott L. Lawrence
Keyword(s):  
Three Dimensional ◽  
Supersonic Combustion ◽  
Navier Stokes

Supersonic Combustion Processes in a Premixed Three-Dimensional Nonuniform-Compression Scramjet Engine

AIAA Journal ◽  
2014 ◽  
Vol 52 (8) ◽  
pp. 1670-1685 ◽  
Author(s):  
Mathew G. Bricalli ◽  
Laurie M. Brown ◽  
Russell R. Boyce
Keyword(s):  
Three Dimensional ◽  
Supersonic Combustion ◽  
Scramjet Engine ◽  
Combustion Processes

Scramjets

2007 ◽  
Vol 111 (1124) ◽  
pp. 605-619 ◽  
Author(s):  
M. Smart
Keyword(s):  
Three Dimensional ◽  
Supersonic Combustion ◽  
Space Vehicles ◽  
Hypersonic Flight ◽  
Recent Advances ◽  
Multi Stage ◽  
Operational Systems ◽  
Supersonic Combustion Ramjet ◽  
Engine Cycle

Abstract The supersonic combustion ramjet, or scramjet, is the engine cycle most suitable for sustained hypersonic flight in the atmosphere. This article describes some of the challenges facing scramjet designers, and the methods currently used for the calculation of scramjet performance. It then reviews the HyShot 2 and Hyper-X flight programs as examples of how sub-scale flights are now being used as important steps towards the development of operational systems. Finally, it describes some recent advances in three-dimensional scramjets with application to hypersonic cruise and multi-stage access-to-space vehicles.

Relation of Air-to-Fuel and Hydrogen-to-Carbon Ratios to Flue Gases in Common Power Generation Systems

2009 ◽  
Author(s):  
Michael D. Costarell
Keyword(s):  
Power Generation ◽  
Natural Gas ◽  
Flue Gas ◽  
Gas Turbines ◽  
Three Dimensional ◽  
Two Dimensions ◽  
Combined Cycle ◽  
Hydrocarbon Fuels ◽  
Three Dimensions ◽  
Pure Hydrogen

For traditional power generation fuels, the flue gas components can be viewed as continuums based on the air-to-fuel (A:F) and hydrogen-to-carbon (H:C) ratios. This paper defines those continuums for common hydrocarbon fuels (coal, natural gas and oil), in the three most common combustion systems (boilers, reciprocating engines, and gas turbines). Plotted vs. A:F in two dimensions, and then plotted vs. A:F and H:C in three dimensions, overall trends are developed for flue gas carbon dioxide and oxygen. The discussion then compares the calculation of A:F ratios in natural gas combined cycle plants with those in integrated gasification combined cycle plants. Hydrocarbon fuels with no entrained oxygen trend well in both two- and three-dimensional plots, while pure hydrogen and syngas processes do not.

The orbit of Pluto over a long interval of time

1966 ◽  
Vol 25 ◽  
pp. 227-229 ◽  
Author(s):  
D. Brouwer
Keyword(s):  
Periodic Orbit ◽  
Numerical Integration ◽  
Restricted Problem ◽  
Three Dimensional ◽  
The Third ◽  
Circular Restricted Problem ◽  
Resonance Relation

The paper presents a summary of the results obtained by C. J. Cohen and E. C. Hubbard, who established by numerical integration that a resonance relation exists between the orbits of Neptune and Pluto. The problem may be explored further by approximating the motion of Pluto by that of a particle with negligible mass in the three-dimensional (circular) restricted problem. The mass of Pluto and the eccentricity of Neptune's orbit are ignored in this approximation. Significant features of the problem appear to be the presence of two critical arguments and the possibility that the orbit may be related to a periodic orbit of the third kind.

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