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Empirical Model of Wall Pressure Spectra in Adverse Pressure Gradients

Hu, Nan (2018) Empirical Model of Wall Pressure Spectra in Adverse Pressure Gradients. AIAA Journal, 56 (9), pp. 3491-3506. American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.J056666. ISSN 0001-1452.

Full text not available from this repository.

Official URL: https://doi.org/10.2514/1.J056666

Abstract

An empirical model of wall pressure spectra for adverse pressure gradient boundary layers is proposed. The effect of adverse pressure gradients on wall pressure spectra and the relationship between the boundary-layer parameters and the wall pressure are studied and demonstrated. A dataset for five experiments at four different test facilities, covering Reynolds number between 2.6 ⋅ 103 and 1.9 ⋅ 104 based on the boundary-layer momentum thickness, is selected to develop the new model. Goody’s model is served as the basis for the development. Predictions of the new model and comparisons with other published wall pressure spectral models for adverse pressure gradient boundary layers are made for the selected dataset. The new model shows good prediction accuracy for the selected dataset and a significant improvement compared to the other published models.

Item URL in elib:https://elib.dlr.de/121101/
Document Type:Article
Title:Empirical Model of Wall Pressure Spectra in Adverse Pressure Gradients
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hu, NanNan.Hu (at) dlr.deUNSPECIFIED
Date:29 June 2018
Journal or Publication Title:AIAA Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:56
DOI :10.2514/1.J056666
Page Range:pp. 3491-3506
Editors:
EditorsEmailEditor's ORCID iD
UNSPECIFIEDAIAAUNSPECIFIED
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
ISSN:0001-1452
Status:Published
Keywords:Empirical model, wall pressure fluctuations, adverse pressure gradient
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin (old)
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Technical Acoustics
Deposited By: Hu, Nan
Deposited On:13 Dec 2018 10:31
Last Modified:05 Nov 2020 14:35

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