Results 111 to 120 of about 9,565 (262)
High-speed rainbow schlieren visualization of an oscillating helium jet undergoing gravitational change [PDF]
, 2006 Peter A. Leptuch, Ajay K. Agrawal
openalex +1 more source
Turbulence, combustion, pollutant, and stability characterization of a premixed, step combustor [PDF]
A two dimensional combustion tunnel was constructed to study a lean premixed turbulent propane/air flame stablized behind a rearward facing step. Studied were: (1) the existence and importance of large coherent structures in turbulent reacting and ...
Ganji, A. T., Sawyer, R. F.
core +1 more source
An experimental study of airfoil-spoiler aerodynamics [PDF]
The steady/unsteady flow field generated by a typical two dimensional airfoil with a statically deflected flap type spoiler was investigated. Subsonic wind tunnel tests were made over a range of parameters: spoiler deflection, angle of attack, and two ...
Karamcheti, K., Mclachlan, B. G.
core +1 more source
Optical measurement systems [PDF]
Some of the areas of research conducted at Lewis on optical measurement techniques are described. Two laser anemometer systems developed at Lewis are used to illustrate the special instrumentation needs encountered in aeropropulsion research.
Lesco, Daniel J.
core +1 more source
Coherent large-scale structures in high Reynolds number supersonic jets [PDF]
The flow structure of a 50.8 mm (2 in) diameter jet operated at a full expanded Mach number of 1.37, with Reynolds numbers in the range 1.7 to 2.35 million, was examined for the first 20 jet diameters. To facilitate the study of the large scale structure,
Ahuja, K. K. +3 more
core +1 more source
Modernization of the DISA 55D41 Wind Tunnel for Micro-Scale Probe Testing
InventionsOriginally introduced in the 1960s by DISA Elektronik as a calibration tunnel for hot-wire anemometers, the Type 55D41 has now been reengineered into a versatile and modern aerodynamic test platform.
Emilia Georgiana Prisăcariu +4 more
doaj +1 more source
Advanced nozzle and engine components test facility [PDF]
A test facility for conducting scaled advanced nozzle and engine component research is described. The CE-22 test facility, located in the Engine Research Building of the NASA Lewis Research Center, contains many systems for the economical testing of ...
Beltran, Luis R. +2 more
core +1 more source
Megahertz Schlieren Imaging of Shock Structure and Sound Waves in Under-Expanded, Impinging Jets [PDF]
, 2010 The accompanying fluid dynamics videos visualize the temporal evolution of shock structures and sound waves in and around an under-expanded jet that is impinging on a rigid surface at varying pressure ratios.
Mitchell, Daniel +2 more
core +1 more source
Schlieren Visualization of Dual Injection in Supersonic Crossflow
, 2023 Video presented in the 2023 Flow Visualization ...
Hoeijmakers, Harry W. M. +3 more
openaire +1 more source