Results 31 to 40 of about 49,411 (303)

Zero Mach number limit of the compressible Euler–Korteweg equations

Boundary Value Problems, 2020
In this paper, we investigate the zero Mach number limit for the three-dimensional compressible Euler–Korteweg equations in the regime of smooth solutions.
Yeping Li, Gang Zhou
doaj   +1 more source

Effects of Trailing Edge Deflections Driven by Shape Memory Alloy Actuators on the Transonic Aerodynamic Characteristics of a Super Critical Airfoil

Actuators, 2021
A smart structure to actuate a morphing trailing edge based on the super critical airfoil NASA sc-0714(2) was designed and verified in a transonic wind tunnel.
Binbin Lv, Yuanjing Wang, Pengxuan Lei
doaj   +1 more source

High order semi-implicit weighted compact nonlinear scheme for the all-Mach isentropic Euler system

Advances in Aerodynamics, 2020
The computation of compressible flows at all Mach numbers is a very challenging problem. An efficient numerical method for solving this problem needs to have shock-capturing capability in the high Mach number regime, while it can deal with stiffness and ...
Yanqun Jiang, Xun Chen, Xu Zhang, Tao Xiong, Shuguang Zhou   +4 more
doaj   +1 more source

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

A new stall-onset criterion for low speed dynamic-stall [PDF]

, 2005
The Beddoes/Leishman dynamic-stall model has become one of the most popular for the provision of unsteady aerofoil data embedded in much larger codes.
Sheng, W., W. Sheng, R. A. McD. Galbraith, Coton, F. N., Galbraith, R.A.McD., Galbraith, R. A. McD, F. N. Coton, Coton, F.N.   +7 more
core   +1 more source

Effects of Mach Number and Magnetic Fields on Performance of MHDG in Nozzle

Journal of Applied Science and Engineering
The technique of magnetohydrodynamic (MHD) power generation has attracted a lot of interest as a potential means of improving the effectiveness and performance of hypersonic vehicle.
Li Hao, Huang Hulin, Zhu Guiping, Zhang An   +3 more
doaj   +1 more source

Secondary flow in compressible turbulent flow through a square duct with an adiabatic wall

Nihon Kikai Gakkai ronbunshu, 2015
The compressible turbulent flows through a square duct including an adiabatic bottom-wall with three Mach numbers, M = 1,1.5,2 are investigated using the direct numerical simulation.
Masayoshi OKAMOTO, Toshihiro MORIMURA
doaj   +1 more source

Study on the influence of geometric dimensions on the profile design of flexible nozzle in wind tunnel

Xibei Gongye Daxue Xuebao
With the numerical simulation method, the nozzle design results on a basic model and a scaled model are studied through analyzing symmetric plane Mach number distribution, density gradient distribution and central axis Mach number distribution curve in ...
XU Bingbing, PENG Qiang, CHEN Jiming, PEI Haitao   +3 more
doaj   +1 more source

Research on Flow Characteristics of a Variable Mach Number Aerodynamic Test Device by a Rotating Profile

International Journal of Aerospace Engineering, 2022
In the development process of aircraft, it needs to be tested in different incoming flow environments. Therefore, the test equipment that can provide a wide Mach number range and a fast-response flow field has always been a research hotspot.
Zaicheng Chen, Yang Liu, Futing Bao, Ran Wei   +3 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
core   +1 more source