研究湍流结构函数的标度律。
The scaling of structure functions in turbulence is discussed.
山谷城市地区的大气湍流结构研究至今报道很少。
There are very few reports on the spectral characteristics of atmospheric turbulence in an urban area of complex terrain.
介绍了湍流不变量图在圆管湍流研究中的应用，分析了离壁距离和雷诺数对管流湍流结构的影响。
The anisotropy invariant map was also introduced briefly. The effect of the distance away from the wall and the Reynolds number on the turbulence structure in a pipe flow was also analysed.
数值模拟结果表明，该边界层模式能较合理地模拟海区层积云覆盖的边界层微湍流结构和云微物理过程。
The result shows that the new model can simulate the turbulent structure and the cloud microphysical processes of the marine stratocumulus-topped planetary boundary layer.
结合探针信号的自相关函数，研究流场湍流结构，发现近尾可能存在大涡拟序结构，而在远尾则没有湍流。
By studying the autocorrelation function of the probe signal, it is found that the large eddy quasi ordering structure likely exists in near wake, but there is no turbulence in far wake.
对湍流结构的正交分解与低阶近似进行了探讨，并在正交分解的基础上建立了湍流相干结构相干模式的识别方法。
The orthogonal decomposition and low dimensional approximation of turbulent structures are investigated, and a pattern identification method based on orthogonal decomposition is suggested.
为了研究固体燃料冲压发动机内部套管结构调节燃料流量的特性，对某模型发动机的湍流燃烧流场进行了数值分析。
In order to study the fuel mass flow rate regulation characteristics of tube-in-hole for solid fuel ramjet, the flow field of turbulent combustion was numerically analyzed.
运用OH-PLIF方法探测了不同燃料系数和出口湍流度下甲烷/空气的锥形预混火焰的火焰前锋结构。
The flame front structures of the methane/air premixed flames are observed by using OH- PLIF method in the different conditions of equivalence ratio and inlet turbulence intensity.
结果表明：大涡模拟技术可以得到发动机内湍流流场中详细拟序结构，时均湍流模拟对于火箭发动机内流场时均量的模拟仍有较好的工程精度。
It was shown that the detail construction of turbulence in rocket can be predicted by LES, and the time-averaged method also can give the result with satisfiable engineering precision.
对山体尾流中最大平均速度扰动和湍流强度扰动的衰减规律以及山体尾流结构进行了分析。
The decay laws of the normalized maximum perturbations in the mean velocity and turbulent intensity in the wake and the wake structure are discussed.
通过水力学模型实验，研究了不同结构的湍流控制装置对中间包流体流动特性的影响。
The influence of turbulence inhibitors with different structure on fluid flow behavior in tundish was studied by water modeling experiments.
结果表明：在激波诱导的高超音速湍流分离流中，激波结构是不稳定的，产生一个间歇区域。
The results show that the shock wave structure is unsteady in shock induced hypersonic turbulent separated flows, generating an intermittent region.
对背景湍流度很大的流动，边界层中有时会产生沿展向周期分布的流向速度的条纹结构。
For high levels of free-stream turbulence, streaky structures in boundary layer with the spanwise variations alternating will be generated.
这意味着网格湍流能有效抑制剪切层中的大涡和拟序结构。
This means that grid turbulence can effectively suppress the large-scale vortex and coherent structure in the shear layer.
利用流动稳定性理论中的一般共振三波的概念，提出了湍流边界层近壁区域相干结构的理论模型。
The theoretical model of the coherent structure in the wall region of a turbulent boundary layer was proposed, using the idea of general resonant triad of the theory of hydrodynamic stability.
笔者强调准确的湍流场数据库建立的重要性，它是定量描述和研究拟序结构的基础。
It is shown that the accurate database of turbulent fluctuations plays a significant role in the quantitative investigation of the structure patterns.
浮力平流直接影响着海洋内部的湍流混合过程，制约着海洋热盐结构的形成和变化。
Bouyancy advection affects the turbulent mixing process in the ocean directly and restrains the formation and the change of the ocean's heat and salt structures.
用改进的油流显示法研究和对比了层流和湍流状态下绕椭球流动的表面摩擦力线结构。
Structures of the skin friction lines (SFL) appearing on a prolate spheroid in laminar and turbulent flows were investigated and compared by using an improved oil-flow visualization technique.
笔者深信准确掌握拟序结构的动力学规律，对于预测和控制湍流将有极大的推动。
It is believed that the prediction and control of turbulent shear flows will be achieved when the dynamics of the coherent structures is well understood.
对于具有大量特征结构的复杂流场(如湍流场)，人们往往只需对其中的主要特征进行研究。
Mostly, for those complex flow fields with numerous feature structures, such as turbulence flows, only a few important feature structures should be investigated.
很显然，可能还存在其它的方式能够导致其它不同类型的湍流或者是自组织相干结构。
Clearly, there can exist other pathways that may lead to other types of turbulence or even self-organized coherent structures.
论述了浮选槽的结构特征以及浮选槽中浆流速度、湍流强度和流动方向等特征对浮选脱墨流体动力学的影响。
The effects of flow velocity, turbulence level and flow direction in the cell on hydrodynamics of flotation deinking were also discussed in this paper.
水在特殊结构内的改向和模肋式螺旋导向促成水的湍流，加大了吸收热量的能力。
The water onflow can be made by the direction changing and rib like spirals guide it can strength the ability of heat absorption.
结果表明，PIV技术非常适于显示涡流、湍流等复杂的流动结构，是风洞实验中研究流动特性的一种非常有效、准确的方法。
The results show that the PIV is a credible and accurate method to study the flow characteristics and is suitable to explore the complicated flow structure, such as vortex, turbulence, etc.
通过对适合安装于水平管道的特殊结构的金属管浮子流量计三维湍流流场的数值仿真及实验研究提出一种基于计算流体力学的流量传感器设计方法。
Based on the computational fluid dynamics, a design method for flow meter is given through numerical simulation and experiment on metal tube rotameter with special structure fixed on the level piping.
利用子波系数的瞬时强度因子、瞬时平坦因子和平坦因子检测平板湍流边界层中的多尺度相干结构。
It is represented that the coherent structures and intermittency are identified by multi-scale flatness factor based on locally averaged velocity structure functions.
利用子波系数的瞬时强度因子、瞬时平坦因子和平坦因子检测平板湍流边界层中的多尺度相干结构。
It is represented that the coherent structures and intermittency are identified by multi-scale flatness factor based on locally averaged velocity structure functions.
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