搅拌反应釜中心的大旋涡对物料的传质传热有重大影响。
The heat and mass transfer in agitation tank are influenced significantly by the center big vortex.
摘要在单涡模型的基础上,根据各向同性湍流的能谱函数,考虑不同尺度的旋涡对气液传质的影响,建立了气液自由界面传质系数模型。
A model of mass transfer coefficients in liquid phase near free gas-liquid interface is developed based on the energy spectrum functions of isotropic turbulence.
昂特斯坦纳博士表示,这样的研究有望加深我们对影响全球气候变化主要因素的认识,包括对北极冰面出现的无数旋涡和环流的了解。
Such research, Dr. Untersteiner said, promised to promote understanding of the fundamental forces at work in global climate change, including the endless whorls and gyres of polar ice.
前盖板上的副叶片可以减少叶轮进口的旋涡损失和颗粒对密封环的磨损。
Former deputy leaves on the cover can reduce the imports of the vortex impeller and particle loss of the wear and tear on the seal ring.
采用离散旋涡法对振荡叶栅传播失速不稳定流场进行了数值模拟。
The unsteady flow in an oscillating cascade with propagating stall was simulated numerically with discrete vortex method.
采用模型试验和数值模拟相结合的方法对侧部孔口情况下立轴旋涡的水力特性进行了研究。
A combination approach of physical and numerical models is adopted to study the hydraulic characteristics of the vertical vortex under the condition of the side orifice.
固定在壳体出口段,其作用是消除旋涡流,以减小对下游仪表性能的影响。
It is fixed at exit section of the shell to reduce whirling current and thus reduce compact on the performance of instruments of lower reaches.
对一种小流量旋涡泵的汽蚀性能进行了理论分析及试验研究。
The theoretical analysis and experimental study of a small-flow high-head vortex pump are carried out.
采用烟雾成像的可视化方法,对单、双三角柱型钝体的旋涡脱落特性进行了实验研究。
We made the flow visualization experiment for flow over bluff body or dual bluff body to study the characteristics of vortex shedding.
对受气液两相流横向冲刷的顺列管束旋涡脱离特性进行了实验研究。
The vortex shedding characteristics of tube bundles in line arrangement subjected to gas liquid two phase cross flow were investigated experimentally.
研究发现,在进气过程的初始阶段,缸内始终存在一对旋涡,并且沿气缸轴线向下缸内流体出现逐步融合的趋势;
The results show that there are a couple of vortexes trending blend along the axes in the cylinder at the initial phase of intake process.
本文绘出旋涡黑子的缠绕方向于1970—1978年内在日面南、北半球的分布,它反映出太阳大气的较差自转对黑子磁场的扭绞形态发生了作用。
In this paper we present the distribution of the penumbral patterns of the spiral spots on the north and south hemispheres of the solar disk in the period between March 1970 and December 1978.
应用流体力学原理对桥台绕流的流场和旋涡体系进行了分析。
Based on fluid mechanics, the flow structure schemes around abutments and the vortex systems, which lead to scour, are studied.
本研究对水平液体绕流热圆柱体的旋涡脱落特性进行了研究。
The vortex shedding frequency spectrum characteristics on a heated circular cylinder in water cross flow was investigated experimentally.
文本给出旋涡黑子的缠绕方向于1970—1978年内在日面南、北半球的分布,它反映出太阳大气的较差自转对黑子磁场的扭绞形态发生了作用。
In the paper we present the distribution of the penumbral pattern of the spiral spot on the north and south hemispheres of the solar disk in the period between March 1970 and December 1978.
试验证明了PIV技术可以应用于被动振动非定常复杂流场的测量中,并对两维翼流体旋涡诱发振动响应进行了分析。
The experiment shows that the PIV technique can be utilized to measure the unsteady complex flow of passive vibration, and analyses the vortex-induced vibration.
通过对PLW- 8型旋涡式屏蔽泵的设计及试验研究,介绍了该类型泵的水力设计及结构设计,总结了设计要领,并将一些重要参数对泵性能的影响做了探索。
Through the design and experimental research of PLW-8 peripheral canned pump, the hydraulic design and structural design of this type of pump are introduced and the design main points are summarized.
以空气和水为介质,以三角柱为旋涡发生体,在内径为50mm的水平管和垂直上升管中分别进行实验,分析雷诺数和体积含气率对气液两相流涡街稳定性的影响。
Experiments were performed in horizontal and vertical conduits with diameter of 50 mm respectively, adopting air and water as flow media and a triangular prism as the vortex-forming body.
利用在一个机翼翼梢安装的翼梢小翼形成受扰动旋涡,在风洞和水洞中对受扰动涡的自组织过程进行了测量。
The self-organization of vortices disturbed by different taps are measured both in wind tunnel by PIV and in water tunnel by LDV.
这种新工艺的关键技术是如何形成旋涡气流及研究气流速度和压力对加工效果的影响关系。
The key of the new technology is how to generate the swirling airflow. And we must study the influences of the speed and pressure of the airflow on the processing effects.
对大多数强烈湍流,往往可以透过旋涡的混乱看出一种井然有序的外表。
In the most intensely turbulent flows, we can often discern a semblance of order through the disorder of the eddies.
对大多数强烈湍流,往往可以透过旋涡的混乱看出一种井然有序的外表。
In the most intensely turbulent flows, we can often discern a semblance of order through the disorder of the eddies.
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