NDLI: Piv measurements of chevrons on f400 tactical aircraft nozzle model

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Piv measurements of chevrons on f400 tactical aircraft nozzle model

Content Provider	NASA Technical Reports Server (NTRS)
Author	Wernet, Mark Bridges Sr., James Frate, Franco
Copyright Year	2010
Description	Previous talks at this meeting have covered our collaborative work on high-energy jets such as present in tactical aircraft (those with supersonic plumes). The emphasis of this work is improving our understanding of flow physics and our prediction tools. In this presentation we will discuss recent flow diagnostics acquired using Particle Image Velocimetry (PIV) made on an underexpanded shocked jet plume from a tactical aircraft nozzle. In this presentation we show cross-sectional and streamwise cuts of both mean and turbulent velocities of an F404 engine nozzle with various chevron designs applied. The impact of chevron penetration, length, and width are documented. The impact of the parameters is generally nonlinear in measures considered here, a surprising result given the relatively smooth behavior of the noise to variations in these chevron parameters.
File Size	5160775
Page Count	21
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20100042471
Archival Resource Key	ark:/13960/t1hj1hf2m
Language	English
Publisher Date	2010-04-28
Access Restriction	Open
Subject Keyword	Fluid Mechanics And Thermodynamics Nozzle Design Turbulence Computational Fluid Dynamics Convergent-divergent Nozzles Particle Image Velocimetry Nonlinearity Aircraft Design Velocity Distribution Aeroacoustics Plumes Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Presentation

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