The Numerical Simulation of a Towing Cylinder Based on Immersed Body Boundary Method

doi:10.1007/s12204-016-1704-5

上海交通大学学报（英文版） ›› 2016, Vol. 21 ›› Issue (2): 136-142.doi: 10.1007/s12204-016-1704-5

The Numerical Simulation of a Towing Cylinder Based on Immersed Body Boundary Method

QIAN Peng* (钱鹏), YI Hong (易宏), LI Yinghui (李英辉)

(State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China)

出版日期:2016-04-15 发布日期:2016-04-26
通讯作者: QIAN Peng (钱鹏) E-mail:qianpeng@sjtu.edu.cn

The Numerical Simulation of a Towing Cylinder Based on Immersed Body Boundary Method

QIAN Peng* (钱鹏), YI Hong (易宏), LI Yinghui (李英辉)

(State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China)

Online:2016-04-15 Published:2016-04-26
Contact: QIAN Peng (钱鹏) E-mail:qianpeng@sjtu.edu.cn

摘要/Abstract

摘要： An immersed body boundary method is adopted to track the motions of a towing cylinder, and a homogenous multiphase Eulerian-Eulerian fluid approach is used to capture the free surface. The Reynolds average Navier-Stockes (RANS) solver is applied to all gird nodes to deal with different velocities of the nodes that are in the body boundary, near the boundary and out of the boundary and their effect on the fluid. The towing cylinder resistance at different submerged depths in the tank is presented. The simulation results are compared with the experimental data, and the method is verified and validated. Finally, the hydrodynamic characters of the cylinder are discussed further. The numerical and experimental results show that at high speeds, the deeper the cylinder submerges, the lower resistance it suffers. The resistance coefficient trough is obtained at Froude number in the range of 0.3 < Fr < 0.4. These phenomena can provide some suggestions on the small waterplane area twin hull (SWATH) design.

关键词: immersed body boundary method, towing cylinder, two-phase flow, model experiment

Abstract: An immersed body boundary method is adopted to track the motions of a towing cylinder, and a homogenous multiphase Eulerian-Eulerian fluid approach is used to capture the free surface. The Reynolds average Navier-Stockes (RANS) solver is applied to all gird nodes to deal with different velocities of the nodes that are in the body boundary, near the boundary and out of the boundary and their effect on the fluid. The towing cylinder resistance at different submerged depths in the tank is presented. The simulation results are compared with the experimental data, and the method is verified and validated. Finally, the hydrodynamic characters of the cylinder are discussed further. The numerical and experimental results show that at high speeds, the deeper the cylinder submerges, the lower resistance it suffers. The resistance coefficient trough is obtained at Froude number in the range of 0.3 < Fr < 0.4. These phenomena can provide some suggestions on the small waterplane area twin hull (SWATH) design.

Key words: immersed body boundary method, towing cylinder, two-phase flow, model experiment

中图分类号:

U 661.33

QIAN Peng* (钱鹏), YI Hong (易宏), LI Yinghui (李英辉). The Numerical Simulation of a Towing Cylinder Based on Immersed Body Boundary Method[J]. 上海交通大学学报（英文版）, 2016, 21(2): 136-142.

QIAN Peng* (钱鹏), YI Hong (易宏), LI Yinghui (李英辉). The Numerical Simulation of a Towing Cylinder Based on Immersed Body Boundary Method[J]. Journal of shanghai Jiaotong University (Science), 2016, 21(2): 136-142.

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The Numerical Simulation of a Towing Cylinder Based on Immersed Body Boundary Method

The Numerical Simulation of a Towing Cylinder Based on Immersed Body Boundary Method

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