Evolutionary numerical simulation approach for design optimization of gas turbine blade cooling channels

Abstract

Gas turbine blade cooling system design is a multidisciplinary, iterative and often tedious task involving complex relationships among multiple design objectives. Typical blade design requires a broad range of expertise in the materials, structural, heat transfer, and cost optimization disciplines. The multiple objectives involved are often conflicting and must be solved simultaneously with equal importance. The traditional approaches researchers scalarize the multiple objectives into a single objective using a weight vector, thus transforming the original multiple objective problem into a single objective problem. This research addresses the shortcomings of existing traditional approaches of the optimization of blade cooling configuration design.

Keywords

• multiobjective
• optimization
• evolutionary
• numerical simulation
• gas turbine
• blade cooling channel
• ribs