Aerodynamic Shape Optimization for High-Rise Conceptual Design Integrating and validating parametric design, (fast) fluid dynamics, structural analysis and optimization

Ran Zhang, Christoph Waibel, Thomas Wortmann

Research output: Chapter in Book or Report/Conference proceedingConference Proceedingpeer-review

8 Citations (Scopus)

Abstract

Using an integrated workflow with parametric design, Computational Fluid Dynamic (CFD) and Fast Fluid Dynamic (FFD) simulations, structural analysis and optimization, this paper evaluates the relative suitability of CFD and FFD simulations for Aerodynamic Shape Optimization (ASO). Specifically, it applies RBFOpt, a model-based optimization algorithm, to the ASO of a supertall high-rise. The paper evaluates the accuracy of the CFD and FDD simulations relative to a slower, more exact CFD simulation, and the performance of the model-based optimization algorithm relative to CMA-ES, an evolutionary algorithm. We conclude that FFD is useful for relative comparisons, such as for optimization, but less accurate than CFD in terms of absolute quantities. Although results tend to be similar, CMA-ES performs less well than RBFOpt for both large and small numbers of simulations, and for both CFD and FFD. RBFOpt with FFD emerges as the most suitable method for conceptual design, as it is much faster and only slightly less effective than RBFOpt with CFD.

Original languageEnglish
Title of host publicationAnthropologic - Architecture and Fabrication in the cognitive age
EditorsLiss C. Werner, Dietmar Koering
PublisherEducation and research in Computer Aided Architectural Design in Europe
Pages37-45
Number of pages9
ISBN (Print)9789491207204
Publication statusPublished - 2020
Event38th Conference on Education and Research in Computer Aided Architectural Design in Europe, eCAADe 2020 - Berlin, Germany
Duration: 16 Sept 202017 Sept 2020

Publication series

NameProceedings of the International Conference on Education and Research in Computer Aided Architectural Design in Europe
Volume1
ISSN (Print)2684-1843

Conference

Conference38th Conference on Education and Research in Computer Aided Architectural Design in Europe, eCAADe 2020
Country/TerritoryGermany
CityBerlin
Period16/09/2017/09/20

Keywords

  • Aerodynamic Shape Optimization
  • Computational Fluid Dynamics (CFD)
  • Fast Fluid Dynamics (FFD)
  • High-rise Conceptual Design
  • Model-based Optimization

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