Results 11 to 20 of about 9,476,674 (192)

Evaluation of an Airjet Distortion Generator used to Produce Steady- State, Total-Pressure Distortion at the Inlet of Turbine Engines

open access: yes, 1976
Abstract : A performance evaluation of an airjet distortion generator system used to produce steady-state, total-pressure distortion at the inlet to a turbine engine was conducted. The capability of the system to duplicate screen- generated, parametric distortion patterns (180 deg, one per revolution; tip radial; hub radial) and to maintain a constant ...
B. Overall
semanticscholar   +2 more sources

Investigation of thermal techniques to mitigate buckling distortion in welding panels [PDF]

open access: yes, 2012
This thesis describes the advancements of the application of thermal tensioning techniques to different weld geometries in order to eliminate buckling distortion.
Nagy, T.
core   +7 more sources

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

Artificial neural network prediction of weld distortion rectification using a travelling induction coil [PDF]

open access: yes, 2013
An experimental investigation has been carried out to determine the applicability of an induction heating process with a travelling induction coil for the rectification of angular welding distortion.
Campbell, S. W.   +3 more
core   +4 more sources

An Experimental Investigation Into the Impacts of Varying the Circumferential Extent of Tip-Low Total Pressure Distortion on Fan Stability

open access: yesVolume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, 2021
Future jet engines with shorter and thinner intakes present a greater risk of intake separation. This leads to a complex tip-low total pressure distortion pattern of varying circumferential extent.
Oliver E. Allen   +2 more
semanticscholar   +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

Web-Distortion/Vetter: Vetter Code & Data Release

open access: yes, 2023
Here we release the code of Vetter. We also provide our collected web page snapshots (snapshot.zip) and SKPaint API invocation logs (skpdata.tar.gz) of the Alexa top and bottom 2,500 websites, as well as our user study results (results_of_user_study.zip)
Web-Distortion
core   +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

Mitigation of welding distortion and residual stresses via cryogenic CO2 cooling - a numerical investigation [PDF]

open access: yes, 2008
Fusion welding remains the most common and convenient fabrication method for large, thinplate welded structures. However, the resulting tendency to out-of-plane distortion exacts severe design and fabrication penalties in terms of poorer buckling ...
Camilleri, D., Gray, T.G.F., Nash, D.H.
core   +3 more sources

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