Results 41 to 50 of about 9,881,663 (387)

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

Generation and Evolution of High-Mach-Number Laser-Driven Magnetized Collisionless Shocks in the Laboratory. [PDF]

Physical Review Letters, 2016
We present the first laboratory generation of high-Mach-number magnetized collisionless shocks created through the interaction of an expanding laser-driven plasma with a magnetized ambient plasma.
D. Schaeffer, W. Fox, D. Haberberger, G. Fiksel, Ashis Bhattacharjee, D. Barnak, Suxing Hu, K. Germaschewski   +7 more
semanticscholar   +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

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

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

All speed scheme for the low mach number limit of the Isentropic Euler equation [PDF]

, 2009
An all speed scheme for the Isentropic Euler equation is presented in this paper. When the Mach number tends to zero, the compressible Euler equation converges to its incompressible counterpart, in which the density becomes a constant.
Constantin, Degond, Degond, Harlow, Heul, Issa, Klein, Kurganov, Min Tang, Munz, Patankar, Pierre Degond, Rusanov   +12 more
core   +3 more sources

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

Hydrodynamical Simulations of the IGM at High Mach Numbers [PDF]

, 2003
We present a new approach to doing Eulerian computational fluid dynamics that is designed to work at high Mach numbers encountered in hydrodynamical simulations of the IGM. In conventional Eulerian CFD, the thermal energy is poorly tracked in supersonic bulk flows where local fluid variables cannot be accurately separated from the much larger bulk flow
Pengjie Zhang, Ue-Li Pen, Hy Trac
openaire   +3 more sources

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

Exploring patients’ profiles associated with the resolution of acute calcium pyrophosphate arthritis treatedwith colchicine and prednisone: post hoc analysis of a randomized controlled trial

Arthritis Care &Research, Accepted Article.
Objective The objective was to identify factors determining acute arthritis resolution and safety with colchicine and prednisone in acute calcium pyrophosphate (CPP) crystal arthritis. Methods We conducted a post hoc analysis of the COLCHICORT trial, which compared colchicine and prednisone for the treatment of acute CPP crystal arthritis, using a ...
Tristan Pascart, Laurène Norberciak, Pascal Richette, Pierre Robinet, Aurore Pacaud, Gauthier Marchasson, Thibault Rabin, Hélène Luraschi, Pierre Maciejasz, Anne‐France Georgel, Augustin Latourte, Hang‐Korng Ea, Sébastien Ottaviani, Charlotte Jauffret, Vincent Ducoulombier   +14 more
wiley   +1 more source