Wake Field Characteristics of Non-Ducted and Ducted Propellers in Large-Angle Oblique Flow

doi:10.16183/j.cnki.jsjtu.2022.159

Abstract

Abstract:

In order to explore the wake characteristics of non-ducted and ducted propellers in oblique inflow with a large drift angle, based on the delayed detached eddy simulation, a numerical simulation of non-ducted and ducted propellers in oblique inflow is conducted with an advance coefficient (J=0.4) and a large drift angle (β=45°, 60°). It is found that the deflection degree of the non-ducted propeller wake is higher than that of the ducted propeller. However, the overall distribution area of the wake vortex behind the ducted propeller is kinked. The wake field in the oblique flow shows its complexity, and the evolution process of vortices on the windward side differs from that on the leeward side. The above characteristic of the non-ducted propeller is more prominent. At the same time, the leading edge of the nozzle on the leeward side will produce local shedding vortices and transmit to the downstream due to flow separation. Part of the kinetic energy of the ducted propeller is converted into the nozzle thrust, which makes the turbulence kinetic energy of the wake lower than that of the non-ducted propeller. This phenomenon is more evident with the increase in the drift angle. Compared with the non-ducted propeller, the ducted propeller can maintain a better handling stability in large-angle oblique flow. This paper analyzes the influence of large-angle oblique inflow on the non-ducted and ducted propellers from the perspective of wake field characteristics and explores the theoretical basis for the ducted propeller to maintain a better handling stability in oblique flow.

Key words: non-ducted propeller, ducted propeller, delayed detached eddy simulation, oblique flow, wake characteristics

CLC Number:

U664.33

ZHANG Qin, WANG Xinyu, WANG Zhicheng, WANG Tianyuan. Wake Field Characteristics of Non-Ducted and Ducted Propellers in Large-Angle Oblique Flow[J]. Journal of Shanghai Jiao Tong University, 2023, 57(11): 1432-1441.

Figures/Tables 13

Fig.1

Fig.2

Fig.3

Tab.1

Tab.2

Fig.4

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

Fig.10

Fig.11

References 16

[1]	龚杰, 郭春雨, 吴铁成. 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, 2018, 52(6): 674-680.
	GONG Jie, GUO Chunyu, WU Tiecheng. Detached eddy simulation of near wake field and vortex characteristics for a ducted propeller[J]. Journal of Shanghai Jiao Tong University, 2018, 52(6): 674-680.
[2]	FELLI M, FALCHI M. Propeller wake evolution mechanisms in oblique flow conditions[J]. Journal of Fluid Mechanics, 2018, 845: 520-559. doi: 10.1017/jfm.2018.232 URL
[3]	DI MASCIO A, MUSCARI R, DUBBIOSO G. On the wake dynamics of a propeller operating in drift[J]. Journal of Fluid Mechanics, 2014, 754: 263-307. doi: 10.1017/jfm.2014.390 URL
[4]	DUBBIOSO G, MUSCARI R, DI MASCIO A. Analysis of the performances of a marine propeller operating in oblique flow[J]. Computers & Fluids, 2013, 75: 86-102. doi: 10.1016/j.compfluid.2013.01.017 URL
[5]	DUBBIOSO G, MUSCARI R, MASCIO A. Analysis of a marine propeller operating in oblique flow. Part 2: Very high incidence angles[J]. Computers & Fluids, 2014, 92: 56-81. doi: 10.1016/j.compfluid.2013.11.032 URL
[6]	HOU L, HU A. Theoretical investigation about the hydrodynamic performance of propeller in oblique flow[J]. International Journal of Naval Architecture and Ocean Engineering, 2019, 11(1): 119-130. doi: 10.1016/j.ijnaoe.2018.02.013 URL
[7]	孙聪, 龚杰, 宋科委. 斜流下导管桨水动力性能及流场特性数值分析[J]. 哈尔滨工程大学学报, 2020, 41(11): 1623-1628.
	SUN Cong, GONG Jie, SONG Kewei. Numerical study on hydrodynamic performance and flow field characteristics of ducted propeller in drift[J]. Journal of Harbin Engineering University, 2020, 41(11): 1623-1628.
[8]	周长科, 吴家鸣, 王浩天. 斜流作用下导管螺旋桨的推力与转矩特性研究[J]. 中国造船, 2020, 61 (Sup.2): 372-382.
	ZHOU Changke, WU Jiaming, WANG Haotian. Research on thrust and torque characteristics of ducted propeller in oblique flow[J]. Ship Building of China, 2020, 61 (Sup.2): 372-382.
[9]	张嶔, 何聪, 许情, 等. 小角度斜流下导管桨/螺旋桨尾流场数值分析[J]. 哈尔滨工程大学学报, 2022, 43(8): 1102-1108.
	ZHANG Qin, HE Cong, XU Qing, et al. Numerical of the wake flow field around ducted propellers/propellers under small-angle oblique flow[J]. Journal of Haerbin Engineering University, 2022, 43(8): 1102-1108.
[10]	ZHANG Q, JAIMAN R K, MA P, et al. Investigation on the performance of a ducted propeller in oblique flow[J]. Journal of Offshore Mechanics & Arctic Engineering, 2020, 142(1): 011801.
[11]	SHUR M L, SPALART P R, STRELETS M K, et al. A hybrid RANS-LES approach with delayed-DES and wall-modelled LES capabilities[J]. International Journal of Heat & Fluid Flow, 2008, 29(6): 1638-1649.
[12]	ASTLEY R J, HAMILTON J A. The stability of infinite element schemes for transient wave problems[J]. Computer Methods in Applied Mechanics & Engineering, 2006, 195(29/30/31/32): 3553-3571.
[13]	ZHANG Q, JAIMAN R K. Numerical analysis on the wake dynamics of a ducted propeller[J]. Ocean Engineering, 2019, 171(1): 202-224. doi: 10.1016/j.oceaneng.2018.10.031 URL
[14]	KOOP A, COZIJN H, SCHRIJVERS P, et al. Determining thruster-hull interaction for a drill-ship using CFD[C]// Proceedings of the ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. Trondheim, Norway: OMAE, 2017, 57649: V002T08A022.
[15]	COZIJN H, HALLMANN R, KOOP A. Analysis of the velocities in the wake of an azimuthing thruster, using PIV measurements and CFD calculations[C]// Dynamic Positioning Conference. Houston, USA: Maritime Research Institute Netherlands, 2010: 1-25.
[16]	SHI H, WANG T, ZHAO M, et al. Modal analysis of non-ducted and ducted propeller wake under axis flow[J]. Physics of Fluids, 2022, 34(5): 055128. doi: 10.1063/5.0090389 URL

算例	桨类型	U_∞/(m·s^-1)	β/(°)	J	n/(r·s^-1)
工况1	导管桨	0.706	45	0.4	17.65
工况2		0.706	60	0.4	17.65
工况3	螺旋桨	0.706	45	0.4	17.65
工况4		0.706	60	0.4	17.65

算例	U_∞/(m·s^-1)	J	n/ (r·s^-1)
工况1	0	0	17.65
工况2	0.353	0.2	17.65
工况3	0.706	0.4	17.65
工况4	1.059	0.6	17.65