耦合升沉运动的七叶侧斜螺旋桨空泡性能研究

doi:10.13675/j.cnki.tjjs.190242

推进技术 ›› 2020, Vol. 41 ›› Issue (2): 461-468.DOI: 10.13675/j.cnki.tjjs.190242

耦合升沉运动的七叶侧斜螺旋桨空泡性能研究

齐江辉¹,吴述庆¹,郭翔¹,郑亚雄¹,陈强¹

武汉第二船舶设计研究所，湖北武汉 430064

发布日期:2021-08-15
基金资助:
国家重点研发计划基金资助项目（2017YFC0307801）。

Numerical Simulation of a Seven-Blade Propeller with Skew on Its Cavitation Performance Coupled with Heave Motion

Wuhan Second Ship Design and Research Institute, Wuhan 430064, China

Published:2021-08-15

摘要/Abstract

摘要： 为建立有效的预报耦合升沉运动的螺旋桨空泡性能的方法，并基于该方法分析升沉运动对螺旋桨空泡性能的影响，基于RANS方法对耦合升沉运动的七叶侧斜螺旋桨的空泡性能进行了数值模拟，螺旋桨的升沉和旋转运动耦合采用自定义运动方程实现，其中升沉运动简化为简单正弦函数。非定常流场中网格和物理信息的传递采用重叠网格技术实现。将非定常流动中螺旋桨（DTMB 4381）的空泡计算结果与试验结果及现象进行了对比，验证了数值计算模型的准确性。计算中对不同升沉运动周期下的螺旋桨非定常推力及扭矩系数进行了分析，同时对螺旋桨的空泡性能进行了实时监测。计算结果显示，升沉运动使螺旋桨的推力和扭矩系数的非定常特性更加明显，同时导致螺旋桨各叶片上的空泡分布不均匀；升沉运动周期越小，上述现象越明显。同时较小升沉运动周期时,推进系数和空泡面积均为周期性变化，其变化周期均为升沉运动的1/2，螺旋桨空泡面积最小值较无升沉运动时增大约17%，空泡面积最大值则增大约57%。

关键词: 重叠网格;七叶螺旋桨;升沉运动;空泡性能

Abstract: In order to establish an effective method to predict cavitation characteristics of the seven-bladed propeller coupled with heave motion, a numerical simulation of cavitation performance was conducted for a seven-blade propeller with skew impacted by coupled heave motion using RANS method. Then the effects of heave motion of the propeller on its cavitation performance are analysised. The coupled heave and rotate motion of propeller was fulfilled using user-defined equations. The heave motion was simplified as a simple sinusoidal function. The overset grid approach was used to transmit physis and mesh information in the unsteady flow field. The validation studies of the DTMB 4381 propeller for unsteady cavitation flow are presented, and the calculation results are in acceptable agreement with the experimental results and observations. The unsteady thrust and torque coefficient in different heave motion period were analyzed. Also, the cavitation performance of the propeller was recorded in time. The results indicated that the unsteady characteristics of thrust and torque coefficient was intensified due to the heave motion and it also leaded to the non-uniform distribution of cavitation on the propeller. A smaller heave period results in a severe unsteady characteristics and non-uniform cavitation distribution. The thurst and torque coefficient and sheet cavitation area change periodically and both the change cycle is one-half of the heave movement as the heave period is small. The minimum area of the propeller cavitation is about 17% higher and the maximum area is about 57% higher than without heave motion.

Key words: Overset grid;Seven blade propeller;Heave motion;Cavitation performance

齐江辉,吴述庆,郭翔,郑亚雄,陈强. 耦合升沉运动的七叶侧斜螺旋桨空泡性能研究[J]. 推进技术, 2020, 41(2): 461-468.

QI Jiang-hui¹,WU Shu-qing¹,GUO Xiang¹,ZHENG Ya-xiong¹,CHEN Qiang¹. Numerical Simulation of a Seven-Blade Propeller with Skew on Its Cavitation Performance Coupled with Heave Motion[J]. Journal of Propulsion Technology, 2020, 41(2): 461-468.

参考文献

[1] Tulin M P . Supercavitation Flows-Small Pertubation Theory[J]. Journal of Ship Research， 1964，（ 4）: 16- 36.
[2] 董世汤 . 二元超空泡翼栅的自由流线理论[C]. 上海：中国造船学会年会， 1964.
[3] Geurse J A . Linearized Theory of Two-Dimensional Cavity Flows[D]. Delft: Delft University of Technology， 1961.
[4] Lee C S . Prediction of the Transient Cavitation on Marine Propellers by Numerical Lifting Surface Theory[C]. Tokyo: 13th Symposium on Naval Hydrodynamics， 1980.
[5] 熊鹰 . 非均匀流中螺旋桨空泡及脉动压力的数值和试验研究[D]. 武汉: 武汉理工大学， 2002.
[6] 胡健 . 螺旋桨空泡性能及低噪声螺旋桨性能研究[D]. 哈尔滨: 哈尔滨工程大学， 2006.
[7] Gaggero S ， Brizzolara S . A Potential Panel Method for the Prediction of Midchord Face and Back Cavitation[J]. Juounal of Fluids Engineering， 2001， 123( 6): 311- 319.
[8] Morgut Mitja ， Nobile Enrico . Influence of the Mass Transfer Model on the Numerical Prediction of the Cavitation Flow Around a Marine Propeller[C]. Hamburg: Second International Symposium on Marine Propulsors smp’11， 2011.
[9] Dengcheng Liu . The CFD Analysis of Propeller Sheet Cavitation[C]. Nantes: Proceedings of the 8th International Conference on Hydrodynamics， 2008.
[10] Politis G K . Simulation of Unsteady Motion of a Propeller in a Fluid Including Free Wake Modeling[J]. Engineering Analysis with Boundary Elements， 2004， 28( 6): 633- 653.
[11] Kinnas S A ， Tian Y ， Sharma A . Numerical Modeling of a Marine Propeller Undergoing Surge and Heave Motion[J]. International Journal of Rotation Machinery， 2012( 3): 257- 461.
[12] Brennen C E . Cavitation and Bubble Dynamics[M]. UK: Oxford University Press， 1995.
[13] Carrica P M ， Wilson R V ， Noack R W ， et al . Ship Motions Using Single-Phase Level Set with Dynamic Overset Grids[J]. Computers and Fluids， 2007， 36( 9): 1415- 1433.
[14] 杨强，林状，郭志群，等 . 穿浪双体船艏部分段模型入水砰击的数值仿真[J]. 华中科技大学学报（自然科学版）， 2015， 43( 6): 42- 47.
[15] 孙涛，万德成 . 前置导管节能效果数值计算与分析[J]. 水动力学研究与进展， 2016， ( 6): 651- 658.
[16] Boswell R J . Design ， Cavitation Performance and Openwater Performance of a Series of Research Skewed Propellers[R]. Carderock: Department of the Naval Ship Research and Development Center， Report 3339， 1965.
[17] 朱德祥，张志荣，吴乘胜，等 . 船舶CFD不确定度分析及ITTC临时规程的初步应用[J]. 水动力研究与进展， 2007， 22( 3): 363- 370.
[18] Kim S E . Multiphase CFD Simulation of Turbulent Cavitation Flows in and Around Marine Propuslors[R]. Carderock: David Taylor Model Basin， 1982.
[19] Vaz G ， Hally D ， Huuva T ， et al . Cavitation Flow Calculations for the E779A Propeller in Open Water and Behind Conditions: Code Comparision and Solution Valodation[C]. Austin: the Fourth International Symposium on Marine Propulsors， 2015: 314- 360.

耦合升沉运动的七叶侧斜螺旋桨空泡性能研究

Numerical Simulation of a Seven-Blade Propeller with Skew on Its Cavitation Performance Coupled with Heave Motion

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