多物理场耦合软件GTEA开发及应用

围绕多物理场耦合问题，基于连续介质假设，采用非结构化网格和有限体积方法开发多物理场耦合并行计算软件GTEA。该软件包括计算流体力学、结构应力波传播、流 声耦合和声 固耦合等4个功能模块。介绍GTEA前处理网格读取、网格格式转换、求解器开发等关键技术。通过柴油机缸内工作过程模拟、船舶水动力计算、自然对流与辐射传热耦合作用、流场动力噪声计算和结构 声耦合计算等5个典型应用展示该软件的应用能力和适用范围。

Development and application of multiphysics field software GTEA

According to the coupling issue of multiphysics field, based on continuous medium hypothesis, a multiphysics field coupling computing software GTEA is designed using the unstructured mesh and the finite volume method. The GTEA software consists of 4 functional modules, which are computational fluid dynamics, structural stress wave propagation, fluid acoustic coupling, and acoustic structure coupling. The key techniques are introduced such as the pre processing mesh input, mesh format conversion, and numerical solver development. Five typical applications are selected to show the capabilities and applications of the software, including the simulation of in cylinder working process of diesel engine, the calculation of ship hydrodynamics, the coupling effect of natural convection and radiation heat transfer, the dynamic noise calculation of flow field, and structure acoustics coupling simulation.