关于有自由表面的非线性二维势流中压力的一些特性

IF 4.3 2区工程技术 Q1 ENGINEERING, OCEAN

Applied Ocean Research Pub Date : 2024-07-16 DOI:10.1016/j.apor.2024.104123

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引用次数: 0

摘要

如今，二维非线性自由表面流已在计算机上进行了常规模拟。在势流理论的背景下，自由表面运动的细节可以被捕捉到。然而，很少有研究关注自由表面下的流动。本研究的新颖之处在于确定了压力梯度与压力 Hessian 矩阵的一个特征向量共线的线条。这些线的空间和时间演变为了解高度非线性流动的复杂性提供了新的视角。我们利用这一压力特征重新审视了最近关于破浪的四项研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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On some properties of the pressure in nonlinear two-dimensional potential flow with a free surface

Two-dimensional nonlinear free surface flows are nowadays routinely simulated on computers. In the context of the potential flow theory, fine details of the free surface motion can be captured. However, few studies focus on the flow beneath the free surface. The novelty of the present work lies in identifying lines where the pressure gradient is colinear with one eigenvector of the pressure Hessian matrix. The spatial and temporal evolution of these lines offers new insights into the complexity of highly nonlinear flows. This pressure characteristic is used to revisit four more or less recent research studies on breaking waves.

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来源期刊

Applied Ocean Research 地学-工程：大洋

CiteScore

8.70

自引率

7.00%

发文量

316

审稿时长

59 days

期刊介绍： The aim of Applied Ocean Research is to encourage the submission of papers that advance the state of knowledge in a range of topics relevant to ocean engineering.