流固耦合模型的适应性POD降阶方法研究现状

摘要

复杂流固耦合结构的仿真优化问题是优化领域的一个难题.其庞大的计算成本需要模型降阶技术来解决,介绍了流固耦合降阶过程中本征正交分解方法的原理,总结了几种适应性POD方法,简述了适应性降阶模型在流固耦合结构优化问题中的应用情况.%Simulation and optimization of complex fluid-solid coupling structure is an important technology in the structure optimization.Its huge computational cost often needs to be solved by the model order reduction technique. In this paper, the proper orthogonal decomposition(POD) method which is of ten used for the reduction of fluid-solid coupling structure is presented firstly, then,several adaptive POD methods are summarized and the application of adaptive reduced order model(ROM)in fluid-solid coupling structural optimization is introduced.