Results 11 to 20 of about 17,501 (159)

Empirical equation of the Mach number as a function of the stagnation pressure ratio for a quasi-one-dimensional compressible flow [PDF]

open access: yesFME Transactions, 2023
In the present work for a quasi-one-dimensional isentropic compressible flow model, an empirical equation of the Mach number is constructed as a function of the stagnation pressure ratio for an analytical equation that algebraic procedures cannot invert.
Tolentino San Luis
doaj  

Impinging jets array: an experimental investigation and numerical modeling [PDF]

open access: yesE3S Web of Conferences, 2019
This paper reports on the measurements of wall shear stress and static pressure along a smooth static wall upon which jet impingement occurs. The effect of a single circular jet, respectively an array of jets is studied using a high speed/resolution ...
Dhondoo Nilesh   +2 more
doaj   +1 more source

Analysis of wall partial pressure-dependence on oxygen surface catalytic recombination with shock-heated flow

open access: yesCase 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
doaj   +1 more source

Characteristics of Air Impingement From an Orifice on a Target Plate [PDF]

open access: yesEngineering 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
doaj   +1 more source

Study of Effect of Convergence Section Geometric on the Performance of a Sonic Nozzle [PDF]

open access: yesJournal of Applied Fluid Mechanics
Critical 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
doaj   +1 more source

Interaction of two vortices in a flued with lower stagnation pressure [PDF]

open access: yesQuarterly of Applied Mathematics, 1977
The flow field induced by two point vortices of strength Γ \Gamma
openaire   +1 more source

Experimental Study on Critical Flow of Supercritical CO2 at Steady State and Model Verification

open access: yesYuanzineng 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
doaj  

OPTIMIZED CONTROLLER DESIGN FOR A BLOWDOWN SUPERSONIC WIND TUNNEL BY USING GENETIC ALGORITHM [PDF]

open access: yesمجله 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
doaj   +1 more source

Optimization of operating conditions in the steam turbine blade cascade using the black-box method

open access: yesPropulsion 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
doaj   +1 more source

Numerical Simulation of Nozzle Flow Field with Secondary Injection Thrust Vector Control

open access: yesMATEC 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
doaj   +1 more source

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