Optimization of blowing in a convergent-divergent nozzle for noise reduction

Nidhi Sikarwar, Philip J. Morris

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

This paper describes the use of an adjoint method for aerodynamic and aeroacoustic optimization. An adjoint method is used to find an optimum distribution of blowing in a convergent-divergent nozzle to achieve a desired pressure distribution in the nozzle with the goal of noise reduction. This paper describes the development of a three-dimensional adjoint method for simulations on multi-block structured grids. An example is given where a particular blowing distribution is first imposed. The resulting pressure distribution is used as the target distribution with no blowing as an initial condition. It is shown that after several cycles, a blowing distribution is obtained that provides the desired or target pressure distribution.

Original languageEnglish (US)
Title of host publication20th AIAA/CEAS Aeroacoustics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624102851
DOIs
StatePublished - 2014
Event20th AIAA/CEAS Aeroacoustics Conference 2014 - Atlanta, GA, United States
Duration: Jun 16 2014Jun 20 2014

Publication series

Name20th AIAA/CEAS Aeroacoustics Conference

Other

Other20th AIAA/CEAS Aeroacoustics Conference 2014
CountryUnited States
CityAtlanta, GA
Period6/16/146/20/14

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Mechanical Engineering

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    Sikarwar, N., & Morris, P. J. (2014). Optimization of blowing in a convergent-divergent nozzle for noise reduction. In 20th AIAA/CEAS Aeroacoustics Conference (20th AIAA/CEAS Aeroacoustics Conference). American Institute of Aeronautics and Astronautics Inc.. https://doi.org/10.2514/6.2014-2473