Results 31 to 40 of about 8,682,927 (148)

Zero Mach number limit of the compressible Euler–Korteweg equations

open access: yesBoundary 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

open access: yesActuators, 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

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

open access: yesHangkong 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

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

open access: yesAdvances 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   +4 more
doaj   +1 more source

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

open access: yesJournal 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   +3 more
doaj   +1 more source

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

open access: yesNihon 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

Monte Carlo methods for stationary solutions of general-relativistic Vlasov systems: Collisionless accretion onto black holes - Wolfram Mathematica packages

open access: yes, 2023
A collection of 5 Wolfram Mathematica packages supplementing the article: Patryk Mach, Adam Cieślik, Andrzej Odrzywołek, "Monte Carlo methods for stationary solutions of general-relativistic Vlasov systems: Collisionless accretion onto black holes ...
Mach, Patryk
core   +1 more source

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

open access: yesXibei 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   +3 more
doaj   +1 more source

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

open access: yesInternational 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   +3 more
doaj   +1 more source

A: Universality in Vortex Formation. B: Evaluation of Mach Wave Radiation Mechanisms in a Supersonic Jet [PDF]

open access: yes, 2000
In this thesis two distinct features of coherent structures are investigated. In Part I a model for the pinch-off process in vortex ring formation is developed.
Mohseni, Kamran
core   +1 more source

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