《机电工程》杂志社科技期刊核心期刊论文投稿机电一体化机械、仪表电工自动化、计算机浙江大学主办

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Improvement and application of the algorithm for fluid-structure

Published:2015-06-08 author:GE Jia-bin1，WANG Can-xing1，FENG Zhan-chen2 Browse: 3352 Check PDF documents

Improvement and application of the algorithm for fluid-structure

coupling based on IQN-ILS

GE Jia-bin1，WANG Can-xing1，FENG Zhan-chen2

（1. School of Aeronautics and Astronautics，Zhejiang University，Hangzhou 310027，China；

2. Shenyang Blower Works Group Corporation，Shenyang 110023，China）

Abstract：Aiming at stability performance of IQN-ILS which is a partitioned algorithm for fluid-structure interaction，how to enhance the

computational stability in numerical simulation of fluid-structure interaction for pipe flow were studied. Two kinds of improved algorithms

based on IQN-ILS algorithm that one is introducing the relaxation factor to IQN-ILS and the anther is combining Aitken with IQN-ILS

were proposed. By using OpenFoam which is an open source library of CFD developed by C++，the new fluid-structure interaction solver

was developed and improved algorithms were implemented. Two dimensional benchmark was used to verify the effectiveness of the solver

newly developed. Finally，the improved algorithms were applied to the three dimensional example for pipe flow. The results indicate that

the improved algorithms can enhance the computational stability and achieve good results.

Key words：fluid-structure interaction；IQN-ILS algorithm；Aitken algorithm；relaxation factor；OpenFoam

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