Abstract

The paper presents two computational techniques that do not require a change in the topology of the mesh to simulate the flow around oscillating bodies. The first technique uses the immersed boundary method, the second technique uses the method of deformed meshes. The capabilities of these two approaches are demonstrated by solving model problems in a two-dimensional formulation for simulating acoustic fields generated by an oscillating cylinder, both single and in the presence of a fixed cylindrical body, in a subsonic flow.

中文翻译：

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流过振荡固体引起的声场的数值模拟

摘要

本文提出了两种计算技术，它们不需要改变网格的拓扑即可模拟围绕振荡体的流动。第一种技术使用沉浸边界方法，第二种技术使用变形网格方法。这两种方法的功能通过解决二维问题中的模型问题来证明，这些问题用于模拟亚音速流中由振荡圆柱体（既存在单个圆柱体又存在固定圆柱体）产生的声场。