Analysis and design optimization of three dimensional nozzles


Yildizlar B., EYİ S.

50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and exhibit 2014, Ohio, United States Of America, 28 - 30 July 2014 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.2514/6.2014-3688
  • City: Ohio
  • Country: United States Of America

Abstract

© 2014 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.The aim of this study is to develop analysis and design optimization method for three dimensional nozzles. For analysis, three dimensional Euler equations are solved using both Newton and Newton-GMRES methods and their performances are compared. The Jacobian matrix needed for Newton method is evaluated analytically. Newton-GMRES method is a matrix free solution technique hence it does not require the Jacobian matrix evaluation. For design optimization, only the Newton method is used. A gradient based method is used for numerical optimization. Sensitivities are evaluated by using adjoint method. The objective of the design is to maximize thrust while keeping the mass flow rate constant.