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Showing 1 to 20 of 558 for “"Supersonic"”.
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Experimental study of supersonic slot injection into a supersonic stream
Tangential slot injection of supersonic air (M<sub>j</sub> = 1.70) into a supersonic air freestream (M₁ = 2.93) was investigated. The model used had a slot height of 1.27 cm, which was also approximately the boundary layer thickness in the primary stream, and a thin splitter plate with a thickness …
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Theoretical and Experimental Analysis of the Constant-Area, Supersonic-Supersonic Ejector
Made available in DSpace on 2014-12-13T19:55:25Z (GMT). No. of bitstreams: 1 7709100.pdf: 4423112 bytes, checksum: 31509dfb35e7f911d8671c28e139c7b0 (MD5) Previous issue date: 1976
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Turbulence measurements of heated supersonic slot injection into a supersonic stream
… of hot-·wire measurements of turbulence in a supersonic shear layer are presented. A multiple-overheat single-wire method based on high-speed, computer-controlled sampling was used in order to obtain large sample sets in short time intervals. The Mach 3 main stream had a total pressure of 95 …
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Supersonic Constricted Plasma Flows
… a converging-diverging nozzle into vacuum at supersonic velocities. Thrust on the order of 1 mN is generated as a reactionary force to the linear momentum of the expelled neutral gas propellant. This thesis presents a comprehensive model of Pocket Rocket developed with computational fluid …
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Supersonic Constricted Plasma Flows
… a converging-diverging nozzle into vacuum at supersonic velocities. Thrust on the order of 1 mN is generated as a reactionary force to the linear momentum of the expelled neutral gas propellant. This thesis presents a comprehensive model of Pocket Rocket developed with computational fluid …
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Shock estimation in supersonic vehicles
… structure generated by vehicles flying in the supersonic and hypersonic regimes. Taking as inputs the geometry and the flow conditions, the proposed approach addresses, in one cohesive methodology, attached and detached shocks in two and three dimensions as well as shock structures composed of …
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Supersonic Combustion of Solid Fuels
A direct connect, supersonic solid fuel combustor with a cavity is explored in the context of understanding characteristics related to ignition, regression rate, combustion, and flow fields for application in advancing solid fuel scramjet research. 3D printed, polymethylmethacrylate fuel grains are …
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Mean flow measurements of heated supersonic slot injection into a high Reynolds number supersonic stream
… Shadowgraph photographs of heated and unheated supersonic slot injection of air into a supersonic air stream are presented for the purpose of observing the mixing which occurs in the resulting shear layer. The heated injected jet (M<sub>j</sub>, P<sub>tj</sub> = 10.7 psia, and T<sub>tj</sub> = …
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The use of hot-wire anemometry in studying supersonic slot injection into a supersonic flow
Tangential supersonic slot injection (M = 1.7) of air into a supersonic air stream (M = 2.91) was studied with a dual hot wire probe. This probe was used to simultaneously determine total temperature and mass flux. Mean profiles across the entire flow field at three axial stations (x/h = 4, 10, 20) …
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AEROSOL EFFECTS IN HIGH SUPERSONIC FLOWS
… transported to every layer of the atmosphere. At supersonic speeds, encounters with particulates have been shown to lead to detrimental effects, such as material erosion and boundary layer transition. Previous attempts to study this problem in wind tunnels have focused mainly on sub-micronsized …
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Supersonic Corner Flows in Rectangular Channels
… channel geometries are widely encountered in supersonic flows, such as in wind tunnels and in aircraft inlets. Shock-boundary-layer interactions in these flows are known to exhibit significant three-dimensionality, due to the presence of sidewalls and associated corner boundary layers. The …
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Supersonic 'oblique all wing' airfoil design
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1993.
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Flow losses in supersonic compressor cascades
… The physical mechanisms that affect the flow in supersonic compressor cascades have been reviewed, including the changes in shock geometry that will occur with back pressure for both started and unstarted operation. Compressible fluid mechanics has been applied to the known shock geometry to …
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The Design and Implementation of a Supersonic Indraft Tube Wind Tunnel for the Demonstration of Supersonic Flows
… the endeavor of scale testing flight vehicles at supersonic Mach numbers, especially for long durations, has required the development of closed-loop wind tunnels, which are extremely expensive both to build and operate due to the high complexity and incredible power required to drive such a …
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A Study of Combustion in Supersonic Streams
Supersonic combustion of reactive aluminum alkyl fuels has been experimentally demonstrated in two-dimensional ducted combustors and adjacent to a flat plate. Fuel was injected from the combustor walls through multiple orifices and ignited spontaneously. Stable supersonic heat release was …
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An Inverse Design Method for Supersonic Airfoils
… easy inverse design method for a wide variety of supersonic scenarios. This is accomplished by using the class-shape transformation technique to parameterize airfoils during an iterative process. The robustness of the method is demonstrated through several distinct design cases including …
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Supersonic self-similar screw-pinch plasma implosions
Self-similar solutions are obtained for the supersonic compression of a plasma containing an axial current and an entrained axial magnetic field (screw-pinch). These solutions represent a complete generalization of previous works done on the Z-pinch and $\Theta$-pinch schemes. The solutions …
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Propulsion considerations for supersonic oblique flying wings
Propulsion considerations unique to the supersonic oblique flying wing, including cycle selection, sizing, and integration were investigated via the development and interrogation of aerodynamic and propulsive synthesis models. These models were an amalgamation of computational tools (MSES), …
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Injection of liquid fuels in supersonic airstreams
… of liquid fuels injected transverse to a hot supersonic (M=1.65) air stream was conducted. The liquids considered were kerosene, CS₂ and water as an inert control. The major variables were: air stagnation temperature in the range 1500 to 2300ºF, injectant flow rate and injection angles from …
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Fan noise reduction from a supersonic inlet
… investigate the radiation of fan noise through a supersonic inlet. A scaled-down model of an axisymmetric, mixed-compression, supersonic inlet (P-inlet) was used in conjunction with a 10.4 cm (4.1 in) diameter turbofan engine simulator as the noise source. The tests were conducted at an outdoor …
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