Results 31 to 40 of about 101,352 (285)

Hypersonic retro propulsion for reusable launch vehicles tested in the H2K wind tunnel

open access: yesCEAS Space Journal, 2022
In the frame of the RETALT (RETro propulsion Assisted Landing Technologies) project, the aerodynamics of reusable launch vehicles reentering the atmosphere and descending and landing with the aid of retro propulsion are studied.
A. Marwege   +3 more
semanticscholar   +1 more source

Improving the Lift Characteristics of Supersonic Double 257 Wedge Airfoil at Low Speed Using Passive-Active Flow Controlling Methods [PDF]

open access: yesEngineering and Technology Journal, 2015
The supersonic double wedge airfoil performs quite excellent in the supersonic speed regime but would lead to poor performance at subsonic speed regime due to sharp edges stall.
Mohammed I.Abutabikh   +2 more
doaj   +1 more source

Developing and applying Mach 4.5 nozzle in hypersonic wind tunnel

open access: yesXibei Gongye Daxue Xuebao, 2021
Mach 4.5 tests in a conventional trans-supersonic wind tunnel are often accompanied by the air liquefaction phenomenon, resulting in the low reliability of test data.
HUANG Ju   +4 more
doaj   +1 more source

Numerical Analysis and Experimental Techniques for Static Aeroelastic Divergence of Wing

open access: yes气体物理, 2023
Aeroelastic divergence analysis of a stable wing structure was performed using a coupled aerodynamic/structural method and validated using wind tunnel tests.
Kai LIU, Kai-hua YUAN, Hai-tao TIAN
doaj   +1 more source

Numerical investigation of air flow in a supersonic wind tunnel

open access: yes, 2017
In the framework of TsAGI’s supersonic wind tunnel modernization program aimed at improving flow quality and extending the range of test regimes it was required to design and numerically validate a new test section and a set of shaped nozzles: two flat ...
S. Drozdov, A. S. Rtishcheva
semanticscholar   +1 more source

Analysis and Verification of Aerodynamic Characteristics of Tianwen-1 Mars Parachute

open access: yesSpace: Science & Technology, 2022
The Mars parachute flight environment is supersonic, low-density, and low dynamic pressures. To ensure the operating performance and reliability, the design optimization and verification of the Tianwen-1 Mars parachute have been carried out.
Mingxing Huang, Wenqiang Wang, Jian Li
doaj   +1 more source

Development of a subscale supersonic aeropropulsion wind tunnel [PDF]

open access: yes20th AIAA Advanced Measurement and Ground Testing Technology Conference, 1998
The preliminary design of a Mach 1.5-4 blowdown wind tunnel is presented. The paper concentrates on the design of each of the tunnel components and also highlights the use of the tunnel for the study of the unsteadiness of the flow in the inlet and diffuser of pulse detonation engines.
Donald R. Wilson   +2 more
openaire   +1 more source

Test Facility for High-Speed Probe Calibration [PDF]

open access: yesEPJ Web of Conferences, 2019
A new test facility was built up as a part of a closed-loop transonic wind tunnel in VZLU´s High-speed Aerodynamics Department. The wind tunnel is driven by a twelve stage radial compressor and Mach and Reynolds numbers can be changed by the compressor ...
Jelínek Tomáš   +3 more
doaj   +1 more source

A large-deflection deformation reconstruction method for semi-flexible plate nozzle based on strain-moment relationship

open access: yesXibei Gongye Daxue Xuebao, 2022
To enhance the health detection capability of the semi-flexible plate nozzle in a supersonic wind tunnel, a large-deflection deformation reconstruction algorithm for a semi-flexible plate nozzle based on the strain-moment relationship is developed.
YU Chengguo   +3 more
doaj   +1 more source

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