Results 1 to 10 of about 77,185 (119)

Experimental and numerical investigation on total pressure distortion generated by a rectangular movable flat baffle

open access: yesAdvances in Mechanical Engineering, 2021
A distortion generator equipped with a motor-activated movable flat baffle was installed just upstream of a rectangular plenum entrance to investigate the effects of inlet total pressure distortion on the stability and performance of an auxiliary power ...
Baofeng Tu   +4 more
doaj   +2 more sources

Numerical simulation of S-shaped inlet under the intake total pressure distortion [PDF]

open access: yesMATEC Web of Conferences, 2022
During the development of the stealth fighter, the S-shaped inlet enters the designer’s vision because it has better stealth than bump inlet and straight inlet. During the use of the S-shaped inlet, due to its structural reasons, secondary flow is likely
Liu Ying   +5 more
doaj   +1 more source

Effect of Interstage Pipeline on the Performance of Two-Stage Centrifugal Compressors for Automotive Hydrogen Fuel Cells

open access: yesApplied Sciences, 2022
At present, two-stage centrifugal compressors based on air bearing and high-speed motor technology are widely used in automotive hydrogen fuel cells.
Huaiyu Wang   +4 more
doaj   +1 more source

Prediction of Non-Uniform Distorted Flows, Effects on Transonic Compressor Using CFD, Regression Analysis and Artificial Neural Networks

open access: yesApplied Sciences, 2021
Non-uniform inlet flows frequently occur in aircrafts and result in chronological distortions of total temperature and total pressure at the engine inlet.
Muhammad Umer Sohail   +7 more
doaj   +1 more source

Using Tip Injection to Stability Enhancement of a Transonic Centrifugal Impeller with Inlet Distortion [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
This paper aims to understand the effects of circumferential inlet distortion and tip injection on a transonic impeller performance and flow field. For distorted inflow, the impeller is subjected to a stationary 120-degrees circumferential total pressure
Z. Jahani, H. Khaleghi, S. Tabejamaat
doaj   +1 more source

Experimental investigation of expansive bending pipe flow separation control using a surface dielectric barrier discharge plasma actuator

open access: yesScience Progress, 2023
Adverse pressure gradients can cause severe flow separation within typical S-shaped inlets. This results in a total pressure distortion at the aerodynamic interface plane (AIP).
Shimin Liu   +7 more
doaj   +1 more source

Effect of insert plate on the inlet pressure distortion of the aero-engine

open access: yesAdvances in Mechanical Engineering, 2023
The shape of the inlet duct and other factors cause distortion of the total pressure, leading to a decrease in engine stability. This article inserts flat plate into the inlet port of a certain type of aviation turbojet engine to conduct an inlet ...
Chenxin He   +4 more
doaj   +1 more source

Mutual stabilization of charge-density-wave and monoclinic distortion in sulfur at high pressures

open access: yesPhysical Review Research, 2023
The charge-density-wave (CDW) amplitude mode of the high-pressure sulfur-IV phase is observed between 83 and 146 GPa using Raman spectroscopy. The energy of this excitation softens with pressure yet remains finite at ν_{CDW}>100cm^{−1} up to the critical
Owen Moulding   +6 more
doaj   +1 more source

Determination of pressure balance distortion coefficient and zero-pressure effective area uncertainties [PDF]

open access: yesInternational Journal of Metrology and Quality Engineering, 2011
The behaviour of piston-cylinder operated pressure balances is characterized by the distortion coefficient λ and zero-pressure effective area A0 which model the variation of a pressure balance’s area in terms of the ...
Ramnath V.
doaj   +1 more source

Effect of inlet distortion with crosswind on aircraft-engine intake aerodynamic performance

open access: yesNihon Kikai Gakkai ronbunshu, 2022
This paper describes an experimental study on inlet distortion in the flow ingested to an intake of a ducted fan. Recent high bypass ratio engines tend to shorten the nacelle length for better fuel consumption.
Hiroki NARUSE   +7 more
doaj   +1 more source

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