本文通过计算分析了旋转湍流边界层。
A method for analyzing the rotating turbulence boundary layer flow was presented.
湍流边界层采用积分反方法。
Inverse integral method is used for compressible turbulent boundary layer.
本文计算了沿不同曲面流动的湍流边界层。
Turbulent boundary layers along two surface of curvature were investigated with computation.
最后简单介绍了目前在研究湍流边界层分离方面的进展。
Finally recent studies of turbulent boundary layer separation are also briefly reviewed.
由于绳索表面湍流边界层的随机压力作用, 绳索运动相当复杂。
Because of the random pressure in the turbulent boundary-layer of the cable surface, the movements of the cable are very complex.
本文从稳定性的观点出发,研究了粘弹性柔性壁对湍流边界层的影响。
The influence of a viscoelastic compliant wall on the turbulent boundary layer was studied from the viewpoint of stability.
摘要:改进了传统的翼型湍流边界层尾缘噪声bpm半经验预测公式。
Abstract: The traditional BPM semi-empirical prediction airfoil turbulent boundary layer trailing edge noise was improved.
将湍流多尺度相干结构的概念引入沟槽壁面湍流边界层减阻机理的研究。
It is employed the concept of multi-scale coherent structures to study the mechanism of riblet surface drag reduction in turbulent boundary layer.
本文阐述了水下流噪声产生的机理以及物体表面状态性能对湍流边界层的影响。
In this paper, the mechanism of flow noise production and the methods of flow noise reduction are presented.
如果考虑压力梯度的影响,还可以将该方法推广到轴对称和三维湍流边界层中去。
The method can be extended to axisymmetric and three-dimensional turbulent boundary layers if the pressure gradient effect is considered.
本文介绍了尖前缘翼诱导激波和湍流边界层干扰流场壁面特性,着重强调马赫数影响。
This paper presents the surface characteristics of the inter-action between shock wave and turbulent boundary layer induced by sharp fin with emphasis on Mach number effects.
本文应用零方程模型和二方程模型计算了椭球体有攻角绕流对称面上的三维湍流边界层。
Revised method is proposed for calculation of three dimensional turbulent boundary layers on the surface of symmetry plane of a flow around ellipsoid at incidence.
用流向速度分量信号的多尺度子波系数作为特征量检测平板湍流边界层多尺度相干结构。
The multi-scale coherent eddy structure in turbulent boundary layer is detected through taking multi-scale wavelet coefficient of stream velocity component signal as characteristic quantity.
用铂膜电阻温度计测量了前向台阶诱导激波与湍流边界层相互作用流场中的表面热流率脉动。
Wall heat transfer fluctuations have been measured using a platinum film resistance thermometer in forward facing steps induced shock wave and turbulent boundary layer interaction fields.
这说明,在没有水动力学不稳定发生的情况下,柔性壁会使湍流边界层中速度型的对数区上移。
The results indicate that coating a compliant wall makes the logarithmic region of a turbulent boundary layer shift upwards as unstable hydrodynamic waves are absent.
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.
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.
本文以BL模型为例,通过可压缩湍流边界层的三个典型算例,与直接数值模拟(DNS)的结果作对比。
In this article, bl model is used to study three typical cases of compressible turbulent boundary layer, for which, data from direct numerical simulation (DNS) are available for comparison.
本文依据湍流边界层拟序结构理论的基础,研究湍流反馈控制模式,在湍流流场中输入控制,达到强化传热的目的。
The article is based on coherent structures of turbulent boundary layer theory, studies the feedback control model of turbulence, and inputs control system to get the enhancement of heat transfer.
同时计算了耗散尺度、泰勒尺度、剪切尺度和积分尺度等特征量,并给出它们沿平板湍流边界层法向位置的变化规律。
Dissipative, Taylor, shear and integral scale are calculated, and the relationship between them and vertical locations in turbulent boundary layer are obtained.
然而,当气流为湍流时,边界层维持时间较长。
However, when the airflow is turbulent, the boundary layer sticks to the ball for longer.
采用大涡模拟方法研究了存在逆温层的情况下大气对流边界层的湍流特性。
The turbulent characteristics in convective boundary layer topped temperature inversion were numerically investigated in terms of large eddy simulation.
利用在边界层转捩中逐渐建立起来的主要动力学过程,对湍流级串概念做了进一步的分析。
The transitional primary dynamical processes, which were constructed in the experiment in a transitional boundary layer, were used to make further analysis on the turbulent cascade patterns.
对大气边界层内大气湍流和建筑物对道路交叉口处机动车排放气态污染物扩散的影响进行了研究。
The effect of atmospheric turbulence and buildings on the dispersion of gaseous pollutants emitted from motor sources was investigated at the road intersection in the atmospheric boundary layer.
进一步建立了局地湍流统计量同近地面层和边界层顶湍流通量之间的关系。
And further, the relationship among the statistical parameters of turbulence, turbulent fluxes in the near surface layer and at the top of the boundary layer are established.
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.
本文运用湍流快速畸变理论对各向异性条件对无切变边界层及轴对称应变湍流特性的影响进行了探讨。
In this paper rapid distortion theory is used to predict the effect of anisotropy on the structure of shear free boundary layer and axisymmetric straining turbulence.
结果表明,该模式比静力模式更能合理地模拟海岸边界层的风温场和湍流场,且模拟结果与实测更接近。
It is shown that this model can more reasonably simulate PBL wind, temperature and turbulent fields than the hydrostatic model in coastal areas.
采用加密网格的大涡模式获取边界层风、温场的高分辨率模拟结果,并据以分析近地面层大气的湍流特性。
Refined grids were utilized in a large-eddy simulation (LES) model for obtaining high-resolution planetary boundary data and analyzing surface layer turbulence.
采用加密网格的大涡模式获取边界层风、温场的高分辨率模拟结果,并据以分析近地面层大气的湍流特性。
Refined grids were utilized in a large-eddy simulation (LES) model for obtaining high-resolution planetary boundary data and analyzing surface layer turbulence.
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