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Adjoint Design Optimization for Boundary Layer Ingesting Inlet Guide Vanes with Distorted Inlet Profiles in SU2

Baig, Aman uz zaman
http://orcid.org/0000-0002-9864-3658
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1613686047734509

Abstract Details

2020, MS, University of Cincinnati, Engineering and Applied Science: Aerospace Engineering.
This thesis explores the applicability of the Stanford University Unstructured (SU2) CFD code for turbomachinery cases and adjoint optimization from an implementation perspective. It covers the basic concepts for adjoint theory and boundary layer ingestion and how a gradient-based optimization approach can be implemented in such problems. Firstly, SU2 is verified and validated for stationary turbomachinery cases. This includes solving for single-blade-row and multi-blade row cases and analyzing the surface and the volume solutions extensively through line and contour plots. The inlet interpolation subroutines implemented by the author have been rigorously tested to ensure the inlet profile is being correctly applied to the solution. All the results are compared with the commercial code FINE/Turbo for verification. This laid the foundation of and culminated in the adjoint optimization of boundary layer ingesting inlet guide vanes. These inlet guide vanes were designed at the Gas Turbine Simulation Laboratory at the University of Cincinnati for a NASA Boundary Layer Ingestion project and the potential for further improvement is evaluated through adjoint optimization in SU2. In the unconstrained optimization a reduction of 7.54% in the entropy generation is achieved compared to an improvement of 3.16% when an exit flow angle constraint is applied. The capabilities and limitations of the current parameterization approach and volumetric mesh deformation routines available in SU2 are discussed. The author's work during his internship at ANSYS Fluent is also discussed and a demonstration of the gradient-based adjoint optimization for the same inlet guide vanes has been carried out using Fluent.
Mark Turner, Sc.D. (Committee Chair)
Prashant Khare, Ph.D. (Committee Member)
Paul Orkwis, Ph.D. (Committee Member)
182 p.
Aerospace Materials
SU2; Adjoint; Optimization; Boundary Layer Ingestion; Propulsor Design; Inlet Distortion

Recommended Citations

Citations

  • Baig, A. U. Z. (2020). Adjoint Design Optimization for Boundary Layer Ingesting Inlet Guide Vanes with Distorted Inlet Profiles in SU2 [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1613686047734509

    APA Style (7th edition)

  • Baig, Aman uz zaman. Adjoint Design Optimization for Boundary Layer Ingesting Inlet Guide Vanes with Distorted Inlet Profiles in SU2. 2020. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1613686047734509.

    MLA Style (8th edition)

  • Baig, Aman uz zaman. "Adjoint Design Optimization for Boundary Layer Ingesting Inlet Guide Vanes with Distorted Inlet Profiles in SU2." Master's thesis, University of Cincinnati, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1613686047734509

    Chicago Manual of Style (17th edition)

ucin1613686047734509
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© 2020, some rights reserved.Creative Commons License Adjoint Design Optimization for Boundary Layer Ingesting Inlet Guide Vanes with Distorted Inlet Profiles in SU2 by Aman uz zaman Baig is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Cincinnati and OhioLINK.