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The analysis of the influence of the turbulence model selection on the parameters of interaction of a supersonic jet with an obstacle
Published 2024-10-01“…The ANSYS Fluent software package is used to analyze the effect of choosing a turbulence model on the distribution of the Mach number and pressure on the barrier. A comparison of the results of the study with experimental data showed that the most accurate results are obtained using the k-ω SST turbulence model.…”
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42
The Effect of Yaw Angle on a Compressible Rectangular Cavity Flow
Published 2017-01-01“…Experiments are performed to determine the characteristics of a compressible flow over yawed rectangular cavities for Mach numbers of 0.64, 0.70, and 0.83. The cavity’s length-to-depth ratio varies from 4.43 to 21.50 and the length-to-width ratio is unity. …”
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43
Correction of procedure for conversion of gas-dynamic characteristics of high-pressure centrifugal сompressor stage in case of frequency change rotor rotation
Published 2022-06-01“…The proposed corrected method of conversion of gas-dynamic characteristics of high-pressure stage of turbocharger operating in the area of high circumferential speeds (conditional Mach numbers > 0,5) to other rotor speeds is given in the work, taking into account deviation from kinematic and dynamic similarity conditions. …”
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44
A Numerical Scheme Based on an Immersed Boundary Method for Compressible Turbulent Flows with Shocks: Application to Two-Dimensional Flows around Cylinders
Published 2014-01-01“…The present scheme is applied to the flow around a two-dimensional cylinder under various freestream Mach numbers. Compared with the original MUSCL scheme, the minimum dissipation enabled by the pseudo skew-symmetric form significantly improves the resolution of the vortex generated in the wake while retaining the shock capturing ability. …”
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45
Combined Magnetohydrodynamic and Geometric Optimization of a Hypersonic Inlet
Published 2009-01-01“…The parameter being optimized is the mass capture at the throat of the inlet, such that spillage effects for less than design Mach numbers are reduced. The control parameters for the optimization include the MHD effects in conjunction with ramp angle changes. …”
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46
Nonlinear Numerical Simulation for Oscillating Pressure in Cavity and Passive Control Research
Published 2019-01-01“…According to the comparison of the cavity noise calculation and experimental results under Mach numbers 0.6, 0.85, and 1.35, it indicates that NLAS is capable to predict oscillating pressure of cavity flow from subsonic to supersonic with acceptable deviation. …”
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47
Review on Recent Advances in Pulse Detonation Engines
Published 2016-01-01“…It is observed that the design of detonation wave flow path in detonation tube, ejectors at exit section of detonation tube, and operating parameters such as Mach numbers are mainly responsible for improving the propulsion performance of PDE. …”
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Research on RBV Control Strategy of Large Angle Maneuver
Published 2014-01-01“…Firstly, considering the nonlinear characteristics of aerodynamic coefficients varying with Mach numbers, attack angle, and sideslip angle, the complete nonlinear 6-DOF model of RBV is established. …”
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49
Direct Numerical Simulations of the Impact of High Turbulence Intensities and Volume Viscosity on Premixed Methane Flames
Published 2011-01-01“…Therefore, to save computational resources, we suggest that the volume viscosity transport term be ignored for turbulent combustion DNS at low Mach numbers when burning hydrocarbon fuels.…”
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An Overview of Solar Orbiter Observations of Interplanetary Shocks in Solar Cycle 25
Published 2025-01-01“…The fundamental shock parameters (shock normals, shock normal angles, shock speeds, compression ratios, Mach numbers) have been estimated and studied as a function of heliocentric distance, revealing a rich scenario of configurations. …”
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51
Analysis of the Magnus Moment Aerodynamic Characteristics of Rotating Missiles at High Altitudes
Published 2021-01-01“…The Magnus moment characteristics of rotating missiles with Mach numbers of 1.3 and 1.5 at different altitudes and angles of attack were numerically simulated based on the transition SST model. …”
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A comparative study of turbulence models for predicting the aerodynamic drag of a spin-stabilized projectile
Published 2025-01-01“…The numerical simulation was carried out at various Mach numbers to study the effect of turbulence models on the projectile aerodynamic drag prediction. …”
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53
Numerical Investigation on the Effect of Fuel-Rich Degree in the RBCC Engine under the Ejector Mode
Published 2024-01-01“…However, it improves the overall performance (Isp) at high flight Mach numbers (Maf). For supersonic conditions, increasing the fuel-rich degree promotes greater fuel participation in combustion, thereby enhancing RBCC engine performance. …”
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