Results 41 to 50 of about 8,682,927 (148)

A Multi-Mode Dynamic Fusion Mach Number Prediction Framework

Aerospace
The precise control of Mach numbers in supersonic and hypersonic compressor wind tunnel systems is a critical challenge in aerodynamic research. Although existing studies have improved prediction accuracy to some extent through machine learning methods ...
Luping Zhao, Weihao Li, Wentao Xu
doaj   +1 more source

Developing and applying Mach 4.5 nozzle in hypersonic wind tunnel

Xibei 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, YANG Yongneng, LIU Qi, YANG Haibin, ZHANG Wei   +4 more
doaj   +1 more source

Subsonic and Transonic Mach Number Tracking Control Strategy Design and Application in an Intermittent Wind Tunnel

IEEE Access
In order to ensure the quality of test data, the Mach number control deviation should be kept within a given range during the continuous-traverse mode force measurement test in a wind tunnel.
Liebo Ma, Cheng Yan, Bo Xiong, Liang Wang   +3 more
doaj   +1 more source

Research on analysis method of propulsive efficiency of prop-fan engine

Hangkong gongcheng jinzhan
It is of great significant for prop-fan engine under medium to high Mach number to evaluate the propulsive efficiency of turbofan, turboprop and prop-fan engines.
HUANG Xing, LI Wei, YANG Yufei, ZHENG Hualei   +3 more
doaj   +1 more source

Modelling of all-optical symmetric Mach-Zehnder switch with asymmetric coupler [PDF]

, 2008
Ultra high-speed optical network is developing rapidly as growing capacity demand in telecommunication system is increasing. In these networks, it is desired to carry out switching, routing and processing in optical domain to avoid bottlenecks of ...
Rahman, Tharek, Ghassemlooy, Zabih, Husna Abdul Rahman, Suzi Seroja Sarnin, Razali Ngah, Prakoso, Teguh, Nani Fadzlina Naim, Teguh Prakoso, Ngah, Razali, Zabih Ghassemlooy   +9 more
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Analysis of the aerodynamic characteristics of an ejection seat system using computational fluid dynamics

Frontiers in Mechanical Engineering, 2023
In the present work, an investigation of the aerodynamic characteristics of an ejection seat occupant is carried out using the commercially available computational fluid dynamics software ANSYS Fluent.
Md. Mahbubur Rahman, Ved Prakash, Sunil Chandel, D. G. Thakur, Robert Čep, Nitin Khedkar, Sachin Salunkhe, Emad S. Abouel Nasr   +7 more
doaj   +1 more source

Mach Number Effect on Symmetric and Antisymmetric Modes of Base Pressure Fluctuations

, 2019
An experimental study aimed at evaluating the influence of Mach number on the base pressure fluctuations of a cylindrical afterbody was performed over a wide range of Mach numbers from subsonic to supersonic speeds.
Vikramaditya, N.S., Viji, M
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Experimental Investigation on the Influence of Yaw Angle on the Inlet Performance at Mach 7 [PDF]

, 2010
This paper presents the results of an extensive measurement campaign that was conducted with an two-dimensional hypersonic inlet in the Hypersonic Windtunnel H2K at the German Aerospace Center in Cologne in order to study the effects of angle of yaw on ...
Ali Gülhan, Hohn, Oliver, Gülhan, Ali, Oliver Hohn   +3 more
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Computational Study of Shocked V-Shaped N₂/SF₆ Interface across Varying Mach Numbers

Axioms
The Mach number effect on the Richtmyer–Meshkov instability (RMI) evolution of the shocked V-shaped N2/SF6 interface is numerically studied in this research. Four distinct Mach numbers are taken into consideration for this purpose: Ms=1.12,1.22,1.42, and
Salman Saud Alsaeed, Satyvir Singh
doaj   +1 more source

Modelling of natural convection flows with large temperature differences : a benchmark problem for low Mach number solvers. Part 1, Reference solutions [PDF]

, 2005
There are very few reference solutions in the literature on non-Boussinesq natural convection flows. We propose here a test case problem which extends the well-known De Vahl Davis differentially heated square cavity problem to the case of large ...
Catherine Weisman, Roland Becker, PAILLERE, H, BECKER, R, Henri Paillère, Patrick Le Quéré, Weisman, Catherine, Paillère, Henri, Becker, Roland, Locke, James C. W., LOCKE, J, Malte Braack, James Locke, Dick, Erik, WEISMAN, C, Jan Vierendeels, Vierendeels, Jan, Braack, Malte, BRAACK, M, Le Quéré, Patrick, Locke, James, LE QUERE, P, Erik Dick   +22 more
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