摘要
在船舶气流场的研究中,对气流场涡量的研究尚不充分。针对目前尚缺乏大型船舶甲板气流场总体评估方法的现状,提出气流场涡量及涡量离散度的评估方法,并基于纳维—斯托克斯方程及FLUENT软件对大型船舶甲板气流场进行数值计算,选取气流场若干横截面,计算各截面涡量,进而得到甲板气流场涡量总体情况,对比分析大型船舶在不同横倾角度下气流场分布情况及涡量、涡量离散度的变化,综合评估大型船舶甲板飞机起降、其他甲板作业情况以及大型船舶的总体性能。
In the research of the aircraft carrier,the airflow field of deck is an important part of combat ef-fectiveness. The main points of the current study of ship airflow field is on the resistance calculation ofship＇s above water part and the simulation of the pressure field and velocity field,and the study of the air-field vorticity is not fully. This research uses scattering infinitesimal areas to calculate the vorticity. Eachinfinitesimal area,whose vorticity is worked out,on the cross sections in key positions are used to calcu-late the overall vorticity and uniformity of the cross sections with the statistics method,and the overall air-flow field will be simulated with the Navier-Stokes equation and the FLUENTsoftware. Finally the compre-hensive assessment of the large ship will be obtained to compare the cross section＇s vorticity and dispersionof vorticity. A method of the performance of large ship will also be acquired.
出处
《中国舰船研究》
CSCD
北大核心
2015年第3期26-31,共6页
Chinese Journal of Ship Research
关键词
甲板气流场
涡量
大型船舶
航空母舰
deck airflow field
vorticity
large ship
aircraft carrier
