Adjoint-Based Optimization for Rigid Body Motion in Multiphase Navier-Stokes Flow
Adjoint-Based Optimization for Rigid Body Motion in Multiphase Navier-Stokes Flow
复制标题
多相纳维-斯托克斯流中刚体运动的伴随优化
DOI：
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发表时间：
2015
影响因子：
3.1
通讯作者：
K. Urban
中科院分区：
文献类型：
--
作者：
J. Springer;K. Urban
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We consider the numerical simulation of rigid body motion in multiphase incompressible Navier--Stokes flow. The motion is formulated as an optimization problem and determined by minimizing an objective function in terms of forces and moments acting on the body, constrained by the multiphase Navier--Stokes equations. The corresponding adjoint system and boundary conditions are derived, and derivatives of the objective function are determined. Numerical experiments include the flow around a NACA hydrofoil, a box, and the standard benchmark KRISO Container Ship (KCS). We obtain a considerable speed-up compared to current state-of-the-art methods.