Numerical Method for Shape Optimization from Wind Noise Perspective
Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
In the field of aeroacoustics a numerical method has been designed tocomplement the empirical data from wind tunnel tests in order to increasethe effectiveness of the design process. By use of a modfied adjoint solverthe source term from the Lighthill aeoracoustic equation is mapped as asensitivity field on the geometry of interest. Using this sensitivity field theengineers and designers get a good indication where design change will havemost impact on reduction of wind-generated noise.The method is verified by several design iterations on various geometriesin order to insure consistency and reliability. However, as the final result is avery basic model only the most simple geometries produce valuable results.Several suggestions for future work are proposed ranging from investigationof the choice of turbulence model to the choice of morphing software.
Place, publisher, year, edition, pages
2014. , 99 p.
Teknik, CFD, Numerical methods, Shape optimization
IdentifiersURN: urn:nbn:se:ltu:diva-57616Local ID: e444a1c4-a2ad-4b6a-a326-3b83ea3b6cc1OAI: oai:DiVA.org:ltu-57616DiVA: diva2:1031004
Subject / course
Student thesis, at least 30 credits
Space Engineering, master's level
Validerat; 20141217 (global_studentproject_submitter)2016-10-042016-10-04Bibliographically approved