Results 1 to 10 of about 50,221 (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

Assessment of Total Pressure and Swirl Distortions in a Busemann Inlet at Mach 6 [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
Flow distortions in high-speed inlet systems are complex, and high-performance air-breathing propulsion systems. In this paper, large eddy simulations are performed to study the total pressure and swirl distortions in a Busemann inlet at freestream Mach ...
Y. Li, Z. Wu, S. Wu, S. Hu, F. Wei
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

Numerical Investigation of a Vortex Diverter Designed for Improving the Performance of the Submerged Inlet

open access: yesAerospace, 2023
The submerged inlet exhibits good stealth characteristics and lower drag, but it has a low total pressure recovery coefficient and high distortion rate, which limits its widespread application. This paper proposes a vortex diverter aimed at enhancing the
Junyao Zhang, Hao Zhan, Baigang Mi
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

Numerical Optimization of Electromagnetic Performance and Aerodynamic Performance for Subsonic S-Duct Intake

open access: yesAerospace, 2022
In order to improve the performance of subsonic unmanned aerial vehicle (UAV), a knapsack S-duct intake has been designed. The influences of an S-bend diffuser on aerodynamic performance and electromagnetic performance were analyzed firstly.
Bin Wang, Qiang Wang
doaj   +1 more source

JET ENGINE INLET DISTORTION SCREEN AND DESCRIPTOR EVALUATION

open access: yesActa Polytechnica, 2017
Total pressure distortion is one of the three basic flow distortions (total pressure, total temperature and swirl distortion) that might appear at the inlet of a gas turbine engine (GTE) during operation.
Jiří Pečinka   +3 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

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