wakes相关论文
Wake flow and vortex structures behind emergent vegetation patches elongated in the longitudinal dir
In natural rivers,patches of vegetation generally expand over their steady wake region in the streamwise direction,formi......
再入式飞行器在不同雷诺数条件下会出现层流、转捩以及湍流流动状态,采用大涡模拟方法细致地刻画了类神舟返回舱外形不同绕流状态......
Flows in rivers and inundated flood plains can often be considered as shallow, implying that the horizontal distribution......
This paper reports a study on the time-averaged characteristics of turbulent wall-wake flow downstream of a sphere place......
Energy harvesting from vortex-induced vibration(ⅤⅣ)is increasingly concerned recently in applications of wind energy.......
There are a plenty of vortex modes,such as S-Ⅰ,A-Ⅰ,A-Ⅳ,S-Ⅱ modes,behind a single streamwise oscillating cylinder[1].......
There are a plenty of vortex modes,such as S-Ⅰ,A-Ⅰ,A-Ⅳ,S-Ⅱ modes,behind a single streamwise oscillating cylinder......
Vortical structures and wakes of bluff bodies in homogenous and stratified environment are common and important in ocean......
通过风洞实验,研究了尾部导流板对25°倾角Ahmed类车体尾流与气动阻力的影响规律.对比了斜面两侧与斜面上边缘宽度分别为5mm,10mm......
Accurate predictions of Shock Waves and Boundary Layer Interaction (SWBLI) and strong Shock Waves and Wake Vortices Inte......
Turbulent flow in a 3-D blade passage of a Francis hydro turbine was simulated with the Large Eddy Simulation (LES) to i......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
通过风洞实验,研究了尾部导流板对25°倾角Ahmed类车体尾流与气动阻力的影响规律.对比了斜面两侧与斜面上边缘宽度分别为5 mm,......
描述了旋翼尾迹分析中的曲涡元模型的改进。文中由椭圆积分的级数展开式推出了圆弧涡元诱速计算的近似公式,给出了解析表达式,从而可......
一个计算旋翼/机身/尾迹间非定常气功干扰的分析方法是建立在二阶升力线/全展自由涡模型和机射面元模型基础之上的。通过迭代机身在桨......
In this paper,studies on offshore wind farm wakes observed by spaceborne synthetic aperture radar(SAR)are reviewed mainl......
采用无限片桨叶的固定尾迹分析法,建立了前飞状态下共轴双旋翼的固定尾迹模型,对共轴双旋翼的前飞气动特性进行了理论研究.得到给......
介绍了在水漕中用氢气泡法显示的斜置蜂窝式栅格翼尾流流态,发现在中等迎角下,相交翼元的每个交叉处邻近壁面的尾流中,有伴随着壁面流......
针对正方体、金字塔及三棱柱人工鱼礁模型,选取3个不同工况6 m/s、9 m/s和12 m/s,通过风洞实验研究不同类型人工鱼礁单体和不同组......
为研究舰载飞机进舰着舰过程中航空母舰尾流的影响,选取了一个尾流模型在微机的MATLAB环境中模拟其速度的空间分布。根据成因将紊流分为4个......
以重点考察旋翼尖涡的运动为目标来构想一种悬停和前飞旋翼涡尾流的理论计算方法,首先从预定的广义尾流入手,并引入尖涡涡核作用的半......
轿车的气动阻力对轿车的燃油经济性有着重要影响.对于折背式轿车,由尾部产生的气动阻力可占整个外形气动阻力的50%.因此,弄清折背......
EXPERIMENTAL STUDY OF TURBULENT WINGBODY JUNCTION AND WAKEFLOWKangHongwen;FanMeng;WeiZhonglei(DepartmentofMechanics,PekingUni.........
EXPERIMENTAL STUDY OF TURBULENT WINGBODY JUNCTION AND WAKEFLOWKangHongwen;FanMeng;WeiZhonglei(DepartmentofMechanics,PekingUni.........
提出了计算船用螺旋桨盘前方诱导速度场的计算模型及方法。假定桨前方诱导速度可由三部分组成,即u=uL+ub-uF,uL为由 Lerbs诱导因子法所计算的诱导速度;uF......
<正> 1.引言 飞行器的表面摩擦阻力约占总阻力的一半,无论从节能还是从提高飞行速度考虑,减小表面摩擦阻力都很重要。通常飞行器上......
用有限差分法求解N-S方程,数值模拟了二维钝楔头部和近尾迹非平衡化学反应流场。模拟条件为Ma∞=25,飞行高度h=70km,半楔角θ=20°钝度比为0.60;气体组分......
为获取分层流体中螺旋桨尾迹的水动力学特性,在大型分层流水槽中采用多点组合探头阵列测量技术,对具有连续密度跃层流体中Suboff自......
将正三角形钝体后尾迹流近似地分为回流区、射流主流区、尾流恢复区、充分发展区;用半理论半经验的分析方法对尾迹流动力方程进行了......
为研究船远场微气泡尾流对偏振光的消偏作用,采用偏振光传输的MonteCarlo模拟程序仿真了尾流气泡幕前向散射偏振度和穆勒矩阵元的二......