Sensitivity Analysis of Transonic Flow over J-78 Wings by Alexander Kuzmin

“…The swept wing exhibits a higher sensitivity to variations of the Mach number than the unswept one.…”
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Intrinsic transition mechanism to detonation of gaseous laminar flames in tubes by Clavin, Paul

“…The deflagration-to-detonation transition (DDT) on the tip of an elongated flame in a tube is analyzed in the double limit of large activation energy and small Mach number of laminar flames. A spontaneous transition of a self-accelerated laminar flame taking the form of a dynamical saddle-node bifurcation of the flow inside the inner structure of the laminar flame is exhibited by the asymptotic analysis. …”
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The Effect of Surface Roughness of a Body in the High Reynolds-Number Flow by Tsutomu adachi

“…From the research results, a high Reynolds-number flow with comparatively low power, LN consumptions was attained. It was with Mach-number independent of each other, o show some examples of high Reynolds-number flow, the effects of surface roughness and grooves on the surface of a cylinder on the flow are measured using models with various values of roughness and size. …”
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Numerical Simulation of Unsteady Compressible Flow in Convergent Channel: Pressure Spectral Analysis by Petra Pořízková, Karel Kozel, Jaromír Horáček

“…The numerical results of unsteady flows in the channel are presented for inlet Mach number M∞=0.012, Reynolds number Re∞=4481, and the wall motion frequency 100 Hz.…”
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Study on the Effect of Air Throttling on Flame Stabilization of an Ethylene Fueled Scramjet Combustor by Ye Tian, Shunhua Yang, Jialing Le

“…The results were obtained under the inflow condition with Mach number of 2.0, total temperature of 900 K, total pressure of 0.8 MPa, and total equivalence ratio of 0.5. …”
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Thermo-Structural Behaviour Prediction of the Nose Cap of a Hypersonic Vehicle Based on Multifield Coupling by Xuewen Sun, Haibo Yang, Tao Mi

“…With the increase in the Mach number, the highest temperature and the peak of maximum principal stress of the nose cap increase. …”
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Nonlinear Vibrations of FGM Cylindrical Panel with Simply Supported Edges in Air Flow by Y. X. Hao, W. Zhang, S. B. Li, J. H. Zhang

“…The chaotic and periodic response are studied by the direct numerical simulation method for influences of different Mach number and the value of in-plane load. The bifurcations, Poincare section, waveform, and phase plots are presented.…”
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CFD Simulation of Pressure and Velocity Drop on Y-Type Fuel Injectors by Tarun Kumar Kotteda, Sudheer Kumar Varma Namburi, Prasada Raju Kantheti, Ravi Varma Penmetsa, Velivela Lakshmikanth Chowdary

“…The kinetic energy of the fluid obtains the highest values of the Mach number in this area.…”
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Intermittent Flow Regimes in a Transonic Fan Airfoil Cascade by J. Lepicovsky, E. R. McFarland, R. V. Chima, V. R. Capece, J. Hayden

“…Experimental results revealed that, at a large incidence angle, a range of transonic inlet Mach numbers exist where the leading-edge shock-wave pattern was unstable. …”
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Ignition and Flame Stabilization of a Strut-Jet RBCC Combustor with Small Rocket Exhaust by Jichao Hu, Juntao Chang, Wen Bao

“…The total temperature and the Mach number of the vitiated air flow, at exit of the nozzle are 1505 K and 2.6, respectively. …”
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Designing a Control System for an Airplane Wing Flutter Employing Gas Actuators by A. R. Ansari, A. R. B. Novinzadeh

“…It should be noted that, to justify the application of the aerodynamic theory, we have speculated that the thruster jet ejected through a nozzle with a diameter smaller than several millimeters has a supersonic regime (with Mach number of the order of M≈3.5). Consequently, the interference of the thruster jet in the boundary layer, flow, and circulation around the airfoil which are characterized by low speed would be negligible. …”
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Interpreting Aerodynamics of a Transonic Impeller from Static Pressure Measurements by Fangyuan Lou, John Charles Fabian, Nicole Leanne Key

“…The inducer diffuses flow more efficiently for inlet tip relative Mach numbers close to unity, and the performance diminishes at other Mach numbers. …”
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Control of flow deflection angle around the corner using microjet array by Yuto Nakadori, Satoshi Yuura, Takahiro Kagawa, Akira Urita, Taro Handa

“…., the deflection angle increases with the jet Mach number. In addition, a parameter in the form of a momentum coefficient is introduced for data reduction by considering that the flow deflection is induced by a Rankine’s combined vortex. …”
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Analyses of the Design of Multirows Vaneless Staggered Counter-Rotating Turbine by Zhongye Wu, Yukun Zhang, Qingfen Ma, Jingru Li

“…The coordination of inlet swirl and outlet Mach number and the outlet angle is discussed by the theoretical method. …”
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The Aerodynamic Characteristics of a Diamond Joined-Wing Morphing Aircraft by Shuai Miao, Xiaoyong Ma, Cheng Chen, Binhua He, Yong Huang

“…The lift ratio of the front and rear wings shows a good similarity at different Mach numbers, especially for the 15° model, and the value eventually tends to be 1.3 at α=12°. …”
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Numerical Investigation of Motive Pressure on Condensation and Evaporation Process in Steam Ejector of Renewable Refrigeration System by Rakibul Islam, Amir Sohel, Md Faisal Bin Ashab

“…As the pressure of motive flow increases, the minimum pressure and minimum temperature in the ejector decreases and the maximum Mach number increases in the ejector, and the production entropy and COP decrease. …”
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Aerodynamic Performance of Different Trailing-edge Serrations for High Reynolds Number Flows around Wing-flap System by S. Ahmadkhah, A. Jahangirian, A. Zarinvafa

“…The NLR 7301 wing and single-slotted flap is selected as reference geometry and three types of serrations in the form of sinusoidal, square, and triangular shapes are cut into the trailing edge of the main element. The flow at Mach number 0.185 and the Reynolds number 2.51 million is calculated by numerical solution of incompressible Navier-Stokes equations using k-ϵ realizable turbulence model. …”
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Numerical Study of a Supersonic Nozzle Gas Jet Laden with a Dry Powder Fire-extinguishing Agent Injected from a Bypass Injector by L. Zhang, S. Wu, Y. Feng, H. Guan

“…During the simulation, we employed our newly developed modified drag coefficient model, capable of accommodating a broad spectrum of particle Reynolds and Mach number conditions. Parameter studies show that an increase in the injector position, angle, and total pressure ratio generally causes a decrease in the average particle velocity vp,a, and an increase in the dispersion Ψp and velocity unevenness Φvp; an increase in the total pressure ratio of the main nozzle leads to an increase in Φvp and vp,a. …”
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Control Characteristics Analysis of Multi-Section Morphing Wing Based on Centroid Self-Trimming by Hang Ma, Zhongbin Zhou, Dingshan Zhang

“…The computational analysis results show: 1) The asymmetry morphing of the sweep angle can significantly improve the maneuvering control performance of the UAV with a large lift coefficient. 2) The overall control efficiency of the UAV can be effectively improved by increasing the deflection rate of the sweep angle and the system parameters of the main controller and supervisory controller. 3) Increasing the feedback value of the integral term of the PI compensator in the inner loop can reduce the oscillation degree of the inner loop system in tracking the target signal when the Mach number is large, and improve the tracking accuracy of the inner loop system. 4) Increasing the wingspan ratio of the inner wing section can reduce the elevator deflection angle required to track the target pitch signal during the morphing process. …”
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Numerical Investigation of the Coupling Effects of Pulsed H₂ Jets and Nanosecond-Pulsed Actuation in Supersonic Crossflow by Keyu Li, Jiangfeng Wang

“…The backward-facing step flows with an inlet Mach number of 2.5 and a pulsed jet frequency of 10 kHz under different actuation conditions were simulated. …”
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