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论文类型：期刊论文

发表时间：2019-01-15

发表刊物：OCEAN ENGINEERING

收录刊物：SCIE、EI

卷号：172

页面范围：146-154

ISSN号：0029-8018

关键字：SWATH; Design optimization; Numerical simulation; RSM; MIGA

摘要：This study sets up an automatic design optimization procedure for SWATH, which integrates computational fluid dynamics (CFD) analysis, geometrical modification and optimization algorithm. A high-fidelity CFD solver based on Reynolds Averaged Navier-Stokes (RANS) equations which has been proved giving accurate flow prediction, is integrated into the optimization module. The Response Surface Model (RSM) is built as a surrogate for computationally expensive numerical simulations to improve the efficiency of the optimization. The Multi-island Genetic Algorithm (MIGA) is applied to the optimization. A 2.7m SWATH test model has been taken as a verification model. The optimization result shows the effectiveness of the optimization and the advantage of the achieving hull forms that have lower resistance than the original hull.