Results 11 to 20 of about 489 (111)
Moving Model Test of High-Speed Train Aerodynamic Drag Based on Stagnation Pressure Measurements. [PDF]
PLoS ONE, 2017 A moving model test method based on stagnation pressure measurements is proposed to measure the train aerodynamic drag coefficient. Because the front tip of a high-speed train has a high pressure area and because a stagnation point occurs in the center ...
Mingzhi Yang +4 more
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Case Studies in Thermal Engineering, 2021 Wall partial pressure dependence analysis of oxygen surface catalytic recombination efficiency on copper-coated surface is experimentally performed in a shock tube at room temperature.
Yosheph Yang +5 more
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Characteristics of Air Impingement From an Orifice on a Target Plate [PDF]
Engineering and Technology Journal, 2013 The present work is an experimental and numerical CFD study of air impingement from orifices of different sizes in the range of (10-40) mm with a step increase of 10 mm.
Adnan A. Abdul Rasool
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Study of Effect of Convergence Section Geometric on the Performance of a Sonic Nozzle [PDF]
Journal of Applied Fluid MechanicsCritical flow Venturi nozzles (toroidal, cylindrical, convergent–divergent, or C–D) nozzles) have discharge coefficients predicted through numerical and experimental investigations.
F. A. Kassem, A. A. Zahran, M. Adel
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Interaction of two vortices in a flued with lower stagnation pressure [PDF]
Quarterly of Applied Mathematics, 1977 The flow field induced by two point vortices of strength Γ \Gamma
openaire +1 more source
OPTIMIZED CONTROLLER DESIGN FOR A BLOWDOWN SUPERSONIC WIND TUNNEL BY USING GENETIC ALGORITHM [PDF]
مجله مدل سازی در مهندسی, 2017 Blowdown Supersonic Wind Tunnels (SWTs) are generally operated with a constant stagnation pressure in the settling chamber, with control usually provided by one or more pressure regulators or control valves. In this paper, first, a Simulink block diagram
Mehradad Bazazzadeh +3 more
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Optimization of operating conditions in the steam turbine blade cascade using the black-box method
Propulsion and Power Research, 2023 Water droplets cause corrosion and erosion, condensation loss, and thermal efficiency reduction in low-pressure steam turbines. In this study, multi-objective optimization was carried out using the black-box method through the automatic linking of a ...
Vahid Sadrian +5 more
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Experimental Study on Critical Flow of Supercritical CO2 at Steady State and Model Verification
Yuanzineng kexue jishu, 2022 When the loss of coolant accident happens in a reactor, because of the high temperature and high pressure in the reactor and the low external pressure, the critical flow may occur at the break due to sharp depressurization and vaporization.
LI Weiqing;ZHANG Dongxu;ZHAO Minfu
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Journal of Marine Science and EngineeringRegular inspections and hull cleanings are essential to prevent bio-fouling on ships. However, traditional cleaning methods such as brush cleaning and high-pressure water-jet cleaning at docks are ineffective in cleaning niche areas like bow thrusters ...
Jaehyeon Ahn +6 more
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Numerical Simulation of Nozzle Flow Field with Secondary Injection Thrust Vector Control
MATEC Web of Conferences, 2018 Numerical simulations are performed to characterize the secondary injection thrust vector control. For this objective the following measurements were taken: considering the flow to be compressible and turbulent using Realizable k-ε turbulence model ...
Noaman H.R. +2 more
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