Results 41 to 50 of about 101,352 (285)

Research progress in nozzle design for supersonic variable Mach number wind tunnel

Hangkong gongcheng jinzhan
The supersonic variable Mach number wind tunnel can operate at multiple Mach numbers during a single operation, which has unique advantages for studying supersonic maneuvering process and scramjet starting.
WANG Ao, DING Hao, TIAN Lifeng
doaj   +1 more source

Supersonic Nozzle Optimization Design with Spline Curves Fitting the Nozzle Profiles [PDF]

Xibei Gongye Daxue Xuebao, 2018
Supersonic nozzle contour optimization design was applied to 0.6m×0.6m continuous transonic wind tunnel to improve flow quality in the test section. The Mach number root mean square deviation with the design value was chosen as optimization target.

doaj   +1 more source

New Transonic Tests of HB-2 Hypersonic Standard Models in the VTI T-38 Trisonic Wind Tunnel

Aerospace
Recent experience has shown that test results of standard wind tunnel models under off-design conditions could be a useful aid in preparations of some nonstandard wind tunnel tests.
Dijana Damljanović, Đorđe Vuković, Goran Ocokoljić, Boško Rašuo   +3 more
doaj   +1 more source

Numerical and Experimental Modelling of Transition in a Separated Boundary Layer on the NACA63A421 Airfoil [PDF]

Transactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2010
The article deals with design and numerical calculation of a variable test section for small supersonic wind tunnel. The supersonic wind tunnel is designed to be driven by a supersonic ejector.
Miroslav ĎURIŠ, Lukáš POPELKA, Jaromír PŘÍHODA, David ŠIMURDA   +3 more
doaj  

Pose Measurement Method and Experiments for High-Speed Rolling Targets in a Wind Tunnel

Sensors, 2014
High-precision wind tunnel simulation tests play an important role in aircraft design and manufacture. In this study, a high-speed pose vision measurement method is proposed for high-speed and rolling targets in a supersonic wind tunnel. To obtain images
Zhenyuan Jia, Xin Ma, Wei Liu, Wenbo Lu, Xiao Li, Ling Chen, Zhengqu Wang, Xiaochun Cui   +7 more
doaj   +1 more source

Flow visualisation of a normal shock impinging over a rounded contour bump in a Mach 1.3 free-stream [PDF]

, 2016
An experimental study has been conducted to visualise the instantaneous streamwise and spanwise flow patterns of a normal shock wave impinging over a rounded contour bump in a Mach 1.3 free-stream.
Kontis, Konstantinos, Lo, Kin Hing
core   +2 more sources

Numerical research on flow field starting of supersonic compressor in outlet-opening wind tunnel

Hangkong gongcheng jinzhan
The process from test starting to supersonic flow state established in an outlet-opening wind tunnel，i. e. the starting problem of supersonic flow，has become a recognized challenge.
ZHANG Tianlong, WANG Xu, LIN Tianqi, XU Xiangshen, MU Wenpeng   +4 more
doaj   +1 more source

Control of Reynolds number in a high speed wind tunnel [PDF]

Journal of Aerospace Technology and Management, 2009
A conceptual control model for the Reynolds number test based on isentropic relations was established for the supersonic wind tunnel. Comparison of the system response of the model simulation and the actual wind tunnel test data was made to design the ...
Maurício G. Silva, Victor O.R. Gamarra, Vitor Koldaev   +2 more
doaj  

Electric arc apparatus Patent [PDF]

, 1968
Electric arc heater with supersonic nozzle and fixed arc length for use in high temperature wind ...
Shepard, C. E., Stine, H. A., Watson, V. R.   +2 more
core   +1 more source

Continuous-flow variable-density wind tunnel facilities [PDF]

, 1972
Unique features of wind tunnel facilities at Jet Propulsion Laboratory permit variety of conventional and novel tests to be performed at supersonic and hypersonic speeds.
Herrera, J. G.
core   +1 more source