Aerodynamic Noise Prediction for a Rod-Airfoil Configuration using Large Eddy Simulations Agrawal, Bharat Sharma, Anupam
dc.contributor.department Aerospace Engineering 2018-02-19T01:46:18.000 2020-06-29T22:44:57Z 2020-06-29T22:44:57Z Wed Jan 01 00:00:00 UTC 2014 2017-11-08 2014-01-01
dc.description.abstract <p>Aerodynamic noise produced by aerodynamic interaction between a cylinder (rod) and an airfoil in tandem arrangement is investigated using large eddy simulations. Wake from the rod convects with the flow, impinges of the airfoil to produce unsteady force which acts as a sound source. This rod-airfoil interaction problem is a model problem for noise generation due to inflow or upstream-generated turbulence interacting with a turbomachine bladerow or a wind turbine rotor. The OpenFoam and Charles (developed by Cascade Technologies) solvers are chosen to carry out the numerical simulations. The airfoil is set at zero angle of attack for the simulations. The flow conditions are specified by the Reynolds number (based on the rod diameter), Red = 48 K, and the flow Mach number, M = 0.2. Comparisons with measured data are made for (a) mean and root-mean-squared velocity profiles in the rod and airfoil wakes, (b) velocity spectra in the near field, and (c) far-field pressure spectra and directivity. Near-field flow data (on- and off-surface) is used with the Ffowcs Williams-Hawkings (FW-H) acoustic analogy as well as Amiet’s theory to predict far-field sound.</p>
dc.description.comments <p>This proceeding is published as Bharat R. Agrawal and Anupam Sharma. "Aerodynamic Noise Prediction for a Rod-Airfoil Configuration using Large Eddy Simulations", 20th AIAA/CEAS Aeroacoustics Conference, AIAA AVIATION Forum, (AIAA 2014-3295). doi: <a href="">10.2514/6.2014-3295</a>. Posted with permission.</p>
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dc.identifier archive/
dc.identifier.articleid 1030
dc.identifier.contextkey 11015360
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath aere_conf/31
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 23:30:47 UTC 2022
dc.source.uri 10.2514/6.2014-3295
dc.subject.disciplines Aerodynamics and Fluid Mechanics
dc.subject.disciplines Aerospace Engineering
dc.subject.disciplines Computational Engineering
dc.title Aerodynamic Noise Prediction for a Rod-Airfoil Configuration using Large Eddy Simulations
dc.type article
dc.type.genre conference
dspace.entity.type Publication
relation.isAuthorOfPublication 9797e35d-08ee-41c7-8982-c83e6db2ed8e
relation.isOrgUnitOfPublication 047b23ca-7bd7-4194-b084-c4181d33d95d
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