Methodology to Solve Flowfields of Plug Nozzles for Future Launchers

1998 ◽  
Vol 14 (3) ◽  
pp. 318-326 ◽  
Author(s):  
Francesco Nasuti ◽  
Marcello Onofri
Keyword(s):  
Plug Nozzles

Thrust Nozzles for Supersonic Transport Aircraft

1964 ◽  
Vol 86 (2) ◽  
pp. 97-104 ◽  
Author(s):  
David Migdal ◽  
John J. Horgan
Keyword(s):  
External Flow ◽  
Operating Costs ◽  
Jet Engine ◽  
Transport Aircraft ◽  
Supersonic Transport ◽  
The Past ◽  
Engine Thrust ◽  
Performance Trends ◽  
Flow Effects ◽  
Plug Nozzles

Supersonic transports will require jet-engine thrust nozzles that are highly efficient from take-off to supersonic cruise in order to minimize the direct operating costs. Variable-area ejectors, plug nozzles, and modifications of these basic types have been tested extensively during the past several years. Performance trends for these nozzles are presented with the emphasis on external flow effects. A new ejector which utilizes aerodynamically actuated doors to admit external air into the ejector shroud is discussed.

Experimental and numerical analysis of linear plug nozzles

1998 ◽  
Author(s):  
H. Immich ◽  
F. Nasuti ◽  
M. Onofri ◽  
M. Caporicci
Keyword(s):  
Numerical Analysis ◽  
Plug Nozzles

Free Turbulent Shear Layers on Plug Nozzles

1977 ◽  
Vol 99 (2) ◽  
pp. 301-308
Author(s):  
C. J. Scott ◽  
D. R. Rask
Keyword(s):  
Turbulent Mixing ◽  
Schmidt Number ◽  
Error Function ◽  
Mixing Layer ◽  
Shear Layers ◽  
Turbulent Shear ◽  
Gas Chromatograph ◽  
Plug Nozzle ◽  
Turbulent Schmidt Number ◽  
Plug Nozzles

Two-dimensional, free, turbulent mixing between a uniform stream and a cavity flow is investigated experimentally in a plug nozzle, a geometry that generates idealized mixing layer conditions. Upstream viscous layer effects are minimized through the use of a sharp-expansion plug nozzle. Experimental velocity profiles exhibit close agreement with both similarity analyses and with error function predictions. Refrigerant-12 was injected into the cavity and concentration profiles were obtained using a gas chromatograph. Spreading factors for momentum and mass were determined. Two methods are presented to determine the average turbulent Schmidt number. The relation Sct = Sc is suggested by the data for Sc < 2.0.

Numerical investigation of two-phase flows in plug nozzles

1993 ◽  
Vol 36 (4) ◽  
pp. 360-368
Author(s):  
I. M. Vasenin ◽  
A. A. Glazunov ◽  
V. A. Ivanov ◽  
N. A. Obukhov ◽  
A. V. Shamin ◽  
...  
Keyword(s):  
Numerical Investigation ◽  
Two Phase Flows ◽  
Two Phase ◽  
Plug Nozzles

Optimal Design of Plug Nozzles and Their Thrust Determination at Start

2001 ◽  
Vol 17 (6) ◽  
pp. 1347-1352 ◽  
Author(s):  
A. N. Kraiko ◽  
N. I. Tillyayeva ◽  
S. V. Baftalovskii
Keyword(s):  
Optimal Design ◽  
Plug Nozzles

The effect of the throat width of plug nozzles on the combustion mode in rotating detonation engines

Shock Waves ◽  
2018 ◽  
Vol 29 (4) ◽  
pp. 471-485 ◽  
Author(s):  
Y. Wang ◽  
J. Le ◽  
C. Wang ◽  
Y. Zheng ◽  
S. Huang
Keyword(s):  
Combustion Mode ◽  
Throat Width ◽  
Plug Nozzles ◽  
Rotating Detonation Engines ◽  
Rotating Detonation
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