Results 21 to 30 of about 24,572 (253)

Analysis of basic concepts of advanced engines for supersonic civil aircraft on the basis of foreign designers’ experience [PDF]

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2021
The work contains the results of a study of the basic design concepts of advanced engines for supersonic civil aircraft, carried out in order to make a forecast for the development of aviation technology, taking into account the experience of foreign ...
A. D. Alendar   +2 more
doaj   +1 more source

Movement Characteristics of Shock Train Under Continuous Change of Incoming Mach Number

open access: yes气体物理, 2023
In order to study the movement characteristics of shock train with the variation of incident shock, a direct-connect wind tunnel experimental system with variable incoming Mach number was built.
Zi-ao WANG   +3 more
doaj   +1 more source

Energy and Exergy Analysis and Optimization of Turbofan Engine-TF30-P414 [PDF]

open access: yesIranica Journal of Energy and Environment, 2021
The turbofan engines are one of the constitutes significant components of the aero engines. In this study, the thermodynamic modeling of the TF30-P414 turbofan engine is developed and validated with reference values.
S. D. Farahani   +2 more
doaj   +1 more source

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

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

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

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

On a diphasic low mach number system [PDF]

open access: yesESAIM: Mathematical Modelling and Numerical Analysis, 2005
The author proposes a diphasic low Mach number (DLMN) system for the modelling of diphasic flows at low Mach number. This system filters out the acoustic waves but keeps all the informations coming from the thermodynamic as the equations of state and the entropy contrary to a standard incompressible diphasic Navier-Stokes system.
openaire   +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

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