船舶航行过程中,其与空气摩擦产生的气流对船舶航行会造成一定的干扰。而且流体在流动域内的湍流流动,一直都是一个非定常、三维、大尺度的复杂过程,这个过程中的流动十分不稳定,流速发生微小的变化就容易使流场变得紊乱和复杂。目前湍流模型大致可分为4类,即常规模型、BSL模型、SST模型和Reynolds Stress模型,这些模型为船舶的扰流干扰性分析提供了有力工具。以货船为例,基于流场特征,从湍流模型入手对其扰流干扰性展开分析,为船舶的安全航行带来一定参考。
In the process of ship navigation, the air flow generated by its friction with the air will cause certain interference to the ship navigation. Moreover, the turbulent flow of the fluid in the flow domain has always been an unsteady, three-dimensional and large-scale complex process. The flow in this process is very unstable, and small changes in the flow rate will easily make the flow field become disordered and complex. At present, turbulence models in academia can be roughly divided into four categories, namely, conventional model, BSL model, SST model and Reynolds Stress model, and provide a lot of valuable experience for the analysis of ship turbulence interference. Therefore, this paper will take the cargo ship as an example, based on the characteristics of the flow field, and start with the turbulence model to analyze its turbulence interference, in order to provide some reference for the safe navigation of ships.
2023,45(8): 35-38 收稿日期:2022-09-13
DOI:10.3404/j.issn.1672-7649.2023.08.008
分类号:U667.65
基金项目:南通市科技计划项目(MSZ21008);南通市科技计划项目(MSZ21096);江苏省高等学校基础科学(自然科学)研究面上项目(22KJD580002)
作者简介:朱亮(1984-),男,硕士,讲师,主要从事水利水运工程研究
参考文献:
[1] 郭兴铎, 李银然, 李仁年, 等. 风力机翼型气动力非定常特性对湍流的敏感性研究[J/OL]. 农业工程学报: 1–8[2023-04-07].
GUO Xing-duo, LI Yin-ran, LI Ren-nian, et al. Sensitivity of aerodynamic unsteady characteristics of wind turbine airfoil to turbulence[J]. Journal of Agricultural Engineering: 1–8.
[2] 王伟拓, 曹曙阳, 操金鑫. 湍流强度对桥梁断面气动力特性的影响[J]. 哈尔滨工业大学学报, 2023, 55(3): 20–28
[3] 王爽, 浦航, 尚妍, 等. 扰流柱对微米颗粒湍流团聚特性的影响研究[J]. 工程热物理学报, 2022, 43(12): 3305–3311
[4] 赵秉国, 曾泽智, 郝长坤, 等. 二次流对SOFC燃料电池电化学反应的影响机理研究[J]. 工程热物理学报, 2022, 43(11): 3029–3040
[5] 张月, 王旭, 苏云, 等. 运动物体大气扰流可视化光学监测实验研究[J]. 红外与激光工程, 2022, 51(8): 337–343