Simulation-driven Aerodynamic Design Using Variable-fidelity Models

Simulation-driven Aerodynamic Design Using Variable-fidelity Models

Leifur Leifsson, Slawomir Koziel


  • Description
  • Author
  • Info
  • Reviews


Computer simulations is a fundamental tool of the design process in many engineering disciplines including aerospace engineering. However, although high-fidelity numerical models are accurate, they can be computationally expensive with evaluation time for a single design as long as hours, days or even weeks. Simulation-driven design using conventional optimization techniques may be therefore prohibitive.

This book explores the alternative: performing computationally efficient design using surrogate-based optimization, where the high-fidelity model is replaced by its computationally cheap but still reasonably accurate representation: a surrogate. The emphasis is on physics-based surrogates. Application-wise, the focus is on aerodynamics and the methods and techniques described in the book are demonstrated using aerodynamic shape optimization cases. Applications in other engineering fields are also demonstrated.

State-of-the-art techniques and a depth of coverage never published before make this a unique and essential book for all researchers working in aerospace and other engineering areas and dealing with optimization, computationally expensive design problems, and simulation-driven design.

  • Motivation and Problem Formulation:
    • Introduction
    • Aerodynamic Shape Optimization
  • Optimization Techniques:
    • Simulation-Driven Design: Direct Methods
    • Surrogate-Based Optimization
    • SBO with Approximation-Based Surrogates
    • SBO with Physics-Based Surrogates
  • Aerodynamics Modeling:
    • Geometry Parameterization
    • High-Fidelity Aerodynamic Models
    • Low-Fidelity Aerodynamics Models
  • Applications:
    • Transonic Airfoil Shape Design
    • Transonic Wing Shape Design
    • Subsonic Shape Design
    • Selected Applications of Surrogate-Based Optimization in Other Areas
    • Surrogate-Based Optimization with MATLAB
  • Conclusion:
    • Practical Aspects of Variable-Fidelity Design

Readership: Graduate students and researchers in the field of engineering, in particular, aerospace engineering. Key Features:
  • Gathers a number of relevant techniques that were never compiled in one publication before, and certain state-of-the-art techniques have never been published in book form
  • Compact and self-contained introduction to the area of surrogate-based optimization and variable-fidelity optimization
  • At present, this is the only book available on the market that offers coverage of variable-fidelity optimization methods