基于分离涡模拟方法的导管桨近尾流场及尾涡特性分析

doi:10.16183/j.cnki.jsjtu.2018.06.007

上海交通大学学报（自然版） ›› 2018, Vol. 52 ›› Issue (6): 674-680.doi: 10.16183/j.cnki.jsjtu.2018.06.007

基于分离涡模拟方法的导管桨近尾流场及尾涡特性分析

龚杰，郭春雨，吴铁成，宋科委，林健峰

哈尔滨工程大学船舶工程学院, 哈尔滨 150001

通讯作者: 龚杰(1991-)，男，湖北省孝感市人，博士生，主要研究方向为船舶推进与节能和数值水池等技术.通信作者：郭春雨，男，教授，博士生导师，电话（Tel.）：0451-82568048; E-mail:guochunyu_heu@outlook.com.
基金资助:
国家自然科学基金资助项目(51379043, 51409063)

Detached Eddy Simulation of Near Wake Field and Vortex Characteristics for a Ducted Propeller

GONG Jie,GUO Chunyu,WU Tiecheng,SONG Kewei,LIN Jianfeng

College of Shipbulding Engineering, Harbin Engineering University, Harbin 150001, China

摘要/Abstract

摘要： 基于分离涡模拟(DES)方法对设计工况下导管桨的近尾流场及尾涡特性进行数值模拟.数值计算中选用Spalart & Allmaras湍流模型封闭N-S方程，采用滑移网格技术及混合网格划分方法完成导管桨敞水性能数值计算.通过分析导管桨瞬态尾流场及尾涡空间结构发现：近尾流场中螺旋桨半径区域瞬态诱导速度大，尾流中分布着连续漩涡结构，尾流加速作用明显.导管桨尾涡主要由导管剪切层涡、叶片涡系及毂涡组成，叶片涡系中包含叶梢涡、叶根涡、毂涡及相邻梢涡带之间诱导产生的S形二次涡；导管桨尾涡结构中多重涡系之间产生复杂干扰，尾涡形态出现融合、扭曲、分解并逐渐扩散.

关键词: 导管桨, 分离涡模拟, 二次涡, 尾涡形态

Abstract: Detached eddy simulation (DES) is employed to simulate the near wake field and vortical characteristics for a ducted propeller under design condition. Spalart & Allmaras model is selected to satisfy the Navier-Stokes equations. Unsteady sliding mesh technique and hybird-grid have been used in the hydrodynamic performance simulation. Based on the analysis of the transient wake field and wake vortex structure, it is found that in the near wake flow field, continuous vortex structures are distributed near the propeller radius region, and the axial velocity is larger in the wake field than that in freestream. The vortex system is composed of shear-layer vortex of the duct, blade vortex system and hub vortex. The blade vortex system contains the tip vortex, root vortex, hub vortex and the S shape secondary vortex, which are induced between two adjacent tip vorteces. There exists complex interference between multiple vortices, which lead to the merging, distortions and breakdown of wake vortex morphology, and gradually diffuse in the downstream.

Key words: vortex morphology, ducted propeller, detached eddy simulation (DES), secondary vortex

中图分类号:

U 661.3

龚杰，郭春雨，吴铁成，宋科委，林健峰. 基于分离涡模拟方法的导管桨近尾流场及尾涡特性分析[J]. 上海交通大学学报（自然版）, 2018, 52(6): 674-680.

GONG Jie,GUO Chunyu,WU Tiecheng,SONG Kewei,LIN Jianfeng. Detached Eddy Simulation of Near Wake Field and Vortex Characteristics for a Ducted Propeller[J]. Journal of Shanghai Jiaotong University, 2018, 52(6): 674-680.

参考文献

［1］BHATTACHARYYA A, KRASILNIKOV V, STEEN S. Scale effects on open water characteristics of a controllable pitch propeller working within different duct designs［J］. Ocean Engineering, 2016, 112: 226-242. ［2］FELICE F D, FLORIO D D, FELLI M, et al. Experimental investigation of the propeller wake at different loading conditions by particle image［J］. Journal of Ship Research, 2004, 48(2): 168-190. ［3］FELLI M, FELICE F D, GUJ G, et al. Analysis of the propeller wake evolution by pressure and velocity phase measurements［J］. Experiments in Fluids, 2006, 41(3): 441-451. ［4］BAEK D G, YOON H S, JUNG J H, et al. Effects of the advance ratio on the evolution of a propeller wake［J］. Computers & Fluids, 2015, 118(1): 32-43. ［5］MUSCARI R, MASCIO A D, VERZICCO R. Mo-deling of vortex dynamics in the wake of a marine propeller［J］. Computers & Fluids, 2013, 73(73): 65-79. ［6］GAGGERO S, TANI G, VIVIANI M, et al. A study on the numerical prediction of propellers cavitating tip vortex［J］. Ocean Engineering, 2014, 92(92): 137-161. ［7］BHATTACHARYYA A, KRASILNIKOV V, STEEN S. A CFD-based scaling approach for ducted propellers［J］. Ocean Engineering, 2016, 123: 116-130. ［8］孙瑜, 苏玉民, 刘伟. 导管结构改进后导管桨的水动力性能研究［J］. 华中科技大学学报(自然科学版), 2016, 44(6): 68-71. SUN Yu, SU Yumin, LIU Wei. Research on hydrodynamic performance of ducted propeller after structure improvement of duct［J］. Journal of Huazhong University of Science and Technology (Natural Science Edition), 2016, 44(6): 68-71. ［9］时立攀, 熊鹰, 杨勇, 等. 导管桨周围流场的数值模拟［J］. 哈尔滨工程大学学报, 2016, 37(3): 344-348. SHI Lipan, XIONG Ying, YANG Yong, et al. Numerical simulation of the flow around a ducted propeller using Reynolds-averaged Navier-Stokes equations［J］. Journal of Harbin Engineering University, 2016, 37(3): 344-348. ［10］李广年, 张军, 张国平, 等. 大型水洞中螺旋桨尾流场PIV测试研究［J］. 空气动力学学报, 2010, 28(5): 503-508. LI Guangnian, ZHANG Jun, ZHANG Guoping, et al. Propeller wake analysis by means of PIV in large water tunnel［J］. Acta Aerodynamica Sinica, 2010, 28(5): 503-508. ［11］童秉纲. 非定常流与涡运动［M］. 北京: 国防工业出版社, 1993: 373-407. TONG Binggang. Unsteady flow and vortex motion［M］. Beijing: National Defence Industry Press, 1993: 373-407. ［12］MASCIO A DI, MUSCARI R, DUBBIOSO G. On the wake dynamics of a propeller operating in drift［J］. Journal of Fluid Mechanics, 2014, 754(9): 263-307. ［13］JEONG J, HUSSAIN F. On the identification of a vortex［J］. Journal of Fluid Mechanics, 1995, 285: 69-94.

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