Results 201 to 210 of about 233,736 (227)
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Flutter Parameter Study on a Complex Inlet Swirl Distortion Generator
Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive ManufacturingAbstract StreamVane devices consist of a custom designed complex vane pack that is used to produce inlet swirl distortion for fan tests, compressor tests, and ground testing of jet engines. Due to being placed upstream of these expensive test rigs, their structural integrity is very important.
Cole Hefner +5 more
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Effects of Inlet Distortion Patterns on Induced Swirl in a Highly Loaded Fan Stage
Volume 2A: Turbomachinery, 2020Abstract Characterization of distortion transfer and generation through fans with distorted inlet conditions enables progress towards designs with improved distortion tolerance. The abruptness of transition from undistorted to distorted total pressure regions at the inlet impacts the induced swirl profile and therefore the distortion ...
Andrew D. Orme +2 more
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Volume 1: Aircraft Engine; Fans and Blowers, 2020
Abstract Over the last decade, the Turbomachinery and Propulsion Research Laboratory at Virginia Tech has researched, invented, developed, computationally analyzed, experimentally tested, and improved turbofan engine inlet distortion generators.
Walter O'brien +2 more
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Abstract Over the last decade, the Turbomachinery and Propulsion Research Laboratory at Virginia Tech has researched, invented, developed, computationally analyzed, experimentally tested, and improved turbofan engine inlet distortion generators.
Walter O'brien +2 more
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Flutter Testing Methodology for Swirl Distortion Generators
AIAA SCITECH 2023 Forum, 2023Cole Hefner +4 more
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A Versatile Design of a Controlled Swirl Distortion Generator for Testing Gas Turbine Engines
Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Manufacturing, Materials and Metallurgy; Microturbines and Small Turbomachinery, 2008Inlet swirl distortion has recently become a major area of concern in the gas turbine engine community. Gas turbine engines are being installed in embedded installations that are downstream of increasingly complicated inlet systems, such as those used in Unmanned Aerial Vehicles (UAVs). These inlet systems can produce complex swirl patterns in addition
Yogi Sheoran, Bruce Bouldin
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StreamVane Turbofan Inlet Swirl Distortion Generator: Mean Flow and Turbulence Structure
Journal of Propulsion and Power, 2018Engine/airframe integration in advanced aircraft concepts must account for nonuniform flows ingested by turbofan engines.
Tamara Guimarães +2 more
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Calculation of various diffuser flows with inlet swirl and inlet distortion effects
AIAA Journal, 1983A method of predicting the properties of various turbulent flows in planar, conical, and annular diffusers with inlet swirl and inlet distortion effects has been developed and appraised. The numerical scheme is based on the fully conservative control volume representation of governing conservation equations.
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Effects of Swirl Distortion on a Centrifugal Compressor at Off-Design Operating Conditions
AIAA JournalEstimating the performance effects of different installations of various compression system rotors is of paramount importance. This effort utilizes the Single Stage Centrifugal Compressor (SSCC) at Purdue University with a modular radial-to-axial inlet to generate offset inlet swirl pairs with minimal total pressure distortion.
Evan H. Bond +2 more
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Volume 6A: Turbomachinery, 2013
The ingestion or manifestation of a vortical flow can have dramatic effects on an aero engine. It is therefore imperative to quantify these effects and understand their underlying mechanism. This numerical study analyses the response of a transonic compressor stage to the ingestion of different streamwise vortical distortions using steady-state CFD ...
Taieb Ben Sghaier +3 more
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The ingestion or manifestation of a vortical flow can have dramatic effects on an aero engine. It is therefore imperative to quantify these effects and understand their underlying mechanism. This numerical study analyses the response of a transonic compressor stage to the ingestion of different streamwise vortical distortions using steady-state CFD ...
Taieb Ben Sghaier +3 more
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A Time-Accurate CFD Analysis of Inlet Distortion Induced Swirl in Multistage Fans
43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2007This paper presents CFD analysis of flow swirl distortion induced by total pressure distortion and total temperature distortion for two multi-stage fans. The numerical simulations and analyses include the front block of the first fan, and the rear block of the second fan.
Jixian Yao, Steven Gorrell, Aspi Wadia
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