基于动量交换的格子Boltzmann模型中水下物体的流力和力矩
Flow force and torque on submerged bodies in lattice-Boltzmann via momentum exchange
摘要：
本文对格子玻尔兹曼方法中动量交换法进行了新的推导，用以计算作用在水下物体上的流力和力矩。我们的推导不依赖于在身体表面的边界条件的特定实现，并依赖于一般原则。我们恢复一些众所周知的表达式，在某些情况下，轻微的更正，治疗的情况下，静止和运动的机构。我们还提出了一些数值试验，支持导出的公式的正确性。
英文摘要：
We present a new derivation of the momentum exchange method to compute the flow force and torque on a submerged body in lattice Boltzmann methods. Our derivation does not depend on a particular implementation of the boundary conditions at the body surface and relies on general principles. We recover some well known expressions, in some cases with slight corrections, to treat the cases of static and moving bodies. We also present some numerical tests that support the correctness of the formulas derived.
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