Results 21 to 30 of about 382,191 (300)

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

Iranica 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, M. Alibeigi, M. R. Sabzehali   +2 more
doaj   +1 more source

The compressible turbulent shear layer: an experimental study [PDF]

, 1988
The growth rate and turbulent structure of the compressible, plane shear layer are investigated experimentally in a novel facility. In this facility, it is possible to flow similar or dissimilar gases of different densities and to select different Mach ...
Papamoschou, Dimitri, Roshko, Anatol
core   +1 more source

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

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, Ren-zhe HUANG, Xuan-an XIN, Jun-tao CHANG   +3 more
doaj   +1 more source

Fuzzy-based prediction for suddenly expanded axisymmetric nozzle flows with microjets [PDF]

Bulletin of the Polish Academy of Sciences: Technical Sciences, 2022
The current research focuses on the implementation of the fuzzy logic approach for the prediction of base pressure as a function of the input parameters.
Jaimon D. Quadros, Suhas P., Sher A. Khan, Abdul Aabid, Muneer Baig, Yakub I. Mogul   +5 more
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

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

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

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 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

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