湍动能,turbulent kinetic energy
1)turbulent kinetic energy湍动能
1.The varying rule of vertex center depth and the distribution ofturbulent kinetic energy in the mould have been studied when the structure and size of submerged entry nozzle(SEN) and processing parameters are changed.根据湍流理论及异形坯连铸的特点 ,建立了异形坯结晶器三维流场数学模型 ,对不同条件下的流场进行了数值模拟 ,分析了水口结构和工艺参数变化时异形坯结晶器内涡心深度的变化规律及液面湍动能的分布状态。
2.The static pressure,turbulent kinetic energy, streamlines distributions and external performance were analyzed and compared.结合外特性预测结果、内部静压、流线和湍动能分布,讨论了低比转速消防泵性能影响因素,得出以下结论:叶片出口角和叶片数对扬程和驼峰的影响较明显,增加分流叶片后,扬程提高明显;增加合理布置的分流叶片可以提高泵的扬程和效率,改善叶轮内部流动和湍动能分布;泵体的喉部面积对性能影响非常敏感,其可以有效控制高效区范围和最高效率。
3.In order to study the interaction between two spheres and the effect of different space on wake andturbulent kinetic energy,numerical simulations on five cases between L=2.为了研究不同间距下并列双圆球的相互作用以及对尾涡和湍动能的影响,本文选取在L=2。
英文短句/例句
1.Taking into account the conservation of momentum and heat flux, FAM is applied to obtain the similarity functions of velocity, temperature and turbulent kinetic energy.考虑到动量及热通量守恒条件,应用有限分析法给出了速度、度和湍动能及其耗散率的相似函数.
2.A 1.5 order closure scheme is used to predict turbulent kinetic energy for determining the eddy viscosity.湍能预报方程采用1.5阶湍流闭合方案，确定湍流涡动系数。
3.Prediction Performance of Several Turbulence Models in Flows Pertinent to Turbomachinery;叶轮机械相关流动中几种湍流模型的预测性能
4.The Study of Energetic Particles Acceleration Mechanism at Shocks with Magnetic Turbulence;磁湍动条件下高能粒子的激波加速机制的研究
5.THE EFFECTS OF TURBULENCE MODEL ON THE AERODYNAMIC PERFORMANCE PREDICTION OF WIND TURBINE BLADE湍流模型对风力机叶片气动性能预估的影响
6.Analysis of Impact of Pneumatic Overfall on Infrared Detector"s Ability气动湍流对红外寻的导弹探测性能影响的分析
7.Changes in the gain could occur if the length of the maser changed because of turbulent gas motions.气体的湍流运动使微波激射区的长度改变时，增益就可能发生改变。
8.The Study on Simulative Flow Performance Affected by Turbulent Model in Machinery with Impeller湍流模型对叶轮机械内部流动性能模拟结果影响的研究
9.Application and comparison of different turbulence models in the computation of a propeller"s hydrodynamic performance不同湍流模型在螺旋桨水动力性能计算中的应用与比较
10.In strongly swirling flow, due to interaction between centrifugal force and turbulent pulsation, adverse transfer of energy from turbulent pulsation to average motion is greatly increased.由于离心力与湍流脉动的相互作用,强旋流动中能量由湍流脉动向平均运动的逆向传输得到了加强。
11.Studies on Gas Turbulence Modification in Gas-Particle Flows and A Dense Two-Phase Turbulence Model;两相流动气体湍流变动模型和稠密两相湍流模型的研究
12.Numerical Simulation of Turbulent Pulsating Flow and Heat Transfer in Tubes圆管湍流脉动流动与换热的数值模拟
13.Investigations of Turbulent Structure and Turbulent Counter-Gradient Transport Characteristics in Stratified Flows;分层流动中湍流结构和湍流逆梯度输运特性研究
14.plasma magnetohydrodynamic turbulence等离子体的磁流体动力学湍流
15.Turbulence Model for Hypersonic Complex Flows高超声速复杂流动中湍流模式的研究
16.Large eddy simulation of turbulent flow in a square duct with 180° bend180°方形弯管中湍流流动的大涡模拟
17.Investigations of Turbulent Spots and Coherent Structure in the Wall Region of a Shear Flow;近壁剪切流动中湍斑及相干结构研究
18.Study on Numerical Simulation of the Turbulent Flow in Centrifugal Pump;离心泵内部湍流流动数值模拟的研究
相关短句/例句
Turbulence Kinetic Energy湍动能
1.At the centre of the section near the top of burners,its rising velocity is minimum,its turbulence kinetic energy is maximum,and its temperature is maximum too.结果表明 ,大空间锅炉炉膛的速度场、温度场分布很不均匀 ;燃烧器上部附近的炉膛中心烟气上升速度最小 ,湍动能最大 ,温度最高 。
2.Then the result of turbulence kinetic energy of numerical simulation near the roof in the 90°direction was present,which was used to analyse the rule of distribution of fluctuating wind pressure on the cantilever.随后给出90°风向下贴近屋盖面上数值模拟湍动能,以此分析悬挑屋盖面上脉动风压分布规律,且用风洞实验的脉动风压均方根值结果进行验证。
3.By performing a number of experiments on the turbulence kinetic energy of smooth plate surfaces and different V-riblet surfaces in various sizes at different wind velocities,the distributing rule of the turbulence kinetic energy over the riblet surfaces in the boundary layer is acquired.通过对不同风速下不同尺寸V型沟槽表面及光洁平板表面边界层内湍动能的测试,对比分析了沟槽表面边界层湍动能的分布规律。
3)turbulent kinetic energy湍流动能
1.Average velocity andturbulent kinetic energy k distribution were obtained.476m的六直叶涡轮桨搅拌槽内,采用粒子图像测速仪(PIV)对桨叶区的流场进行了实验研究,得到了桨叶区的平均流速和湍流动能(k)分布,采用大涡PIV方法对湍流动能耗散率(ε)分布进行了估算,计算了ε与k的相关系数。
2.Based on the tendency equation ofturbulent kinetic energy, its simplified equation including only wind shear and air stability was derived.基于湍流动能倾向方程,推导出了其只含风切变和大气稳定度的简化方程。
3.The distribution of Reynolds shear stress andturbulent kinetic energy was described and the correlation of these two quantities was discussed.简述了在西北工业大学低湍流度风洞中，用热线风速仪对翼型边界层及近场尾流中雷诺正应力及切应力等的测量结果，着重讨论了雷诺切应力及湍流动能的分布规律及相关特性。
4)turbulence kinetic energy湍流动能
1.),turbulence kinetic energy and sensible heat flux are calculated and their characters are analyzed under different stability and compared with the r.采用2000年8月在美国加州棉花地两个高度上应用超声三分量仪、快速响应温度和湿度仪进行的EBEX2000(InternationalEnergyBalanceExperiment,2000)风速三分量、温度和湿度湍流实验观测数据,计算分析了湍流宏观量(即u,T,σu/u,σv/u,σw/u和σT/T等),湍流动能和感热通量等的特征,并与其他湍流实验得到的结果进行了比较。
5)turbulent energy spectrum湍动能谱
6)turbulent energy spectra湍动能能谱
延伸阅读
比释动能比释动能kinetic energy released in material; kermabishi由叩neng比释动能(kineticene卿rele胎ed in Irlaterial;ke~)剂量学量之一。1958年，w.c.勒施提出单位质t所释放的动能的概念，称为kerm(kinetiee”e咬万回eaa司卿画t~)，反映不带电粒子辐射与物质相互作用中的能t传递。后又采用比释动能ke~(七杨。ene耳妙花1以曰妇inm川e‘目)，符号为K。比释动能的定义为dE。除以dm所得的商，即K== dE，/dm式中dE。为不带电粒子在质量为dm的物质中所释放的所有带电粒子的初始动能之和。sI单位为凡一‘(焦耳每千克)，专用单位为仰(戈〔瑞」)。适当选择物质中的比释动能，可以方便地描述不带电粒子的辐射场，例如空气比释动能、组织比释动能等。 (吕维纯徐涌)
