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Numerical investigation of the wall pressure fluctuations in channel flows

Schumann, U. (1975) Numerical investigation of the wall pressure fluctuations in channel flows. Nuclear Engineering and Design, 32, pp. 37-46. DOI: 10.1016/0029-5493(75)90089-8

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Official URL: http://www.elsevier.com/wps/find/journaldescription.cws_home/505661/description#description

Abstract

Numerically simulated turbulent pressure fields in a plane channel and an annulus with a 5:1 ratio of radii are used to evaluate the spatial structure of pressure fluctuations at the walls. Wall-pressure correlation functions in the axial and azimuthal directions, spectra, correlation functions and angular correlations of the forces acting on the cylinders of the annulus are considered. It is found that no correlation exists between the pressure values at two points which are diametrically opposed to each other in the annulus. The spectrum of the forces starts with a zero value for small wave numbers, reaches its maximum at about unity wave number and then decreases, as a −7/3rd power of the wave number.

Item URL in elib:https://elib.dlr.de/53586/
Document Type:Article
Title:Numerical investigation of the wall pressure fluctuations in channel flows
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schumann, U.Gesellschaft für Kernforschung, KarlsruheUNSPECIFIED
Date:1975
Journal or Publication Title:Nuclear Engineering and Design
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:32
DOI :10.1016/0029-5493(75)90089-8
Page Range:pp. 37-46
Status:Published
Keywords:wave number
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics
Deposited By: Freund, Jana
Deposited On:26 Nov 2008
Last Modified:31 Jul 2019 19:21

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