CUED Publications database

Understanding the complexities in turbomachinery design by visualizing the discontinuous areas in the design parameter space

Kipouros, T and Lewis, A (2014) Understanding the complexities in turbomachinery design by visualizing the discontinuous areas in the design parameter space. In: UNSPECIFIED pp. 23-32..

Full text not available from this repository.

Abstract

In real-world computational engineering design, it is often necessary to consider a large number of design parameters to describe and model the product under investigation, and a large number of objective functions to express the strongly competing performance metrics. As a result, when we successfully perform multi-objective optimization studies, we produce a large number of data points in a high-dimensional space. In order to develop understanding of the complexities in such problems, we need to simultaneously visualise the design parameters and objective functions spaces and reveal the patterns of optimum performance, but also the discontinuous areas of infeasibility. By achieving this, we can potentially benefit in many ways. Firstly, the information that is extracted from such analysis can explicitly support human-in-the-loop computational design methodologies. Secondly, multi-fidelity optimization approaches can be guided and further enhanced with trust region approaches. Thirdly, identify the causes and reasons for the activation of the physical mechanisms that are responsible for improved, but also degraded, flow behavior in compressors design. And finally, the identification of design rules and characterization of the complexity in real-world engineering design. We use the Parallel Coordinates technique to manage the visualization and interaction of such hyper-planes. The illustrative case study used is the 3D aerodynamic design of compressor blades, considering 26 design parameters for the geometry management and 2 objective functions to model two of the critical flow characteristics (c1 - entropy generation, c2 - blockage).

Item Type: Conference or Workshop Item (UNSPECIFIED)
Subjects: UNSPECIFIED
Divisions: Div C > Engineering Design
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:40
Last Modified: 17 Aug 2017 01:25
DOI: