Karman
英
美 [ˈkɑrmən]
n. 卡门数
双语例句
- Numerical Simulation Research of Boundary and Shock Wave Interaction over Ramp; Experimental Investigation of Perturbation by Karman Vortex-Street in Turbulent Boundary Layer Outer Region
压缩拐角激波边界层干扰数值模拟研究平板湍流边界层外区卡门涡街扰动的实验研究 - An analysis of the stability of Karman vortex street configurations Upon entering through the main gates, you will face the Hut of the Caretaker, which may have been an entrance checkpoint.
关于卡门涡街形状稳定性的一点分析进入大门之后，即可看见「门人小屋」当初可能是进入该城的关卡。 - I commend President Sirleaf, Leymah Gbowee, and Tawakkul Karman for showing the world that the rights and voices of half of humanity cannot and will not be denied.
我赞赏瑟利夫总统、雷玛·博维和塔瓦库勒·卡曼向全世界表明人类一半人口的权利和发言权不容否定而且绝不会被否定。 - It is presented how to successfully simulate the phenomenon of Karman vortex street when fluid passes by vortex flowmeter by using FLUENT software.
运用FLUENT数值仿真软件成功的模拟出流体流经涡街流量传感器时所产生的卡门涡街现象。 - Later, make a38-year-old on the mechanics and physics community to recognize the "Weichang equation," Von Karman, his mentor is also his.
后来38岁就弄出了力学和物理学界承认的“钱伟长方程”，他的导师冯卡门也很赞赏他。 - The Analysis and Elimination of Vibration by Karman Vortex Street in tube AH
管式空气预热器卡门振动的分析及消除 - When Reynolds number is16.2, the alternate eddy formation and shedding are repeated and the phenomenon is common to Karman Vortex Street.
雷诺数为16.2时，圆柱后会持续的周期性产生漩涡并脱落，类似宏观现象中的卡门涡街； - Heap stones to form a dam There are horse shoe vortex around spur dikes and Karman vortices behind spur dikes.
把石头堆成一道堤坝发现在丁坝的上游会形成马蹄涡，在丁坝的背风面会形成卡门涡。 - Experimental Investigation of Perturbation by Karman Vortex-Street in Turbulent Boundary Layer Outer Region Visualization and measurement study of vortex flow over delta wing with dorsal fins
平板湍流边界层外区卡门涡街扰动的实验研究带背鳍平板三角翼分离涡流场的显示与测量 - The von Karman constant of sediment-laden flows is one of the important parameters reflecting the influence of sediment movement on the flow structure.
挟沙水流卡门常数是反映泥沙运动对水流结构影响的重要参数之一，本文回顾并讨论了挟沙水流卡门常数的计算公式及其影响因素。 - Karman often receives death threats.
卡曼常常收到死亡威胁。 - Numerical results for the effect of the von Karman radome on the above-mentioned antennas are presented.
通过数值仿真，分析了冯卡曼天线罩对半波振子和八木天线电参数的影响，其结果具有工程参考价值。 - A study on detecting Karman vortex shedding frequence using ultrasound
超声法测量Karman旋涡脱落频率的研究 - Von Karman gave transonic similarity law of two-dimensional isolated airfoils many years ago.
多年前VonKarman曾给出了二维孤立翼型的跨音相仿律。 - Based on the discrete vortex method, a conformal mapping technique is used to solve Karman vortex street-airfoil interaction.
本文利用保角变换，用离散涡方法求解了卡门涡街与翼型的相互作用。 - Three mathematic models of deflection-load for circular flat diaphragm are established based on classical theory of elastic thin plate, von Karman ′ s theory of large deflection and membrane theory.
为描述环状平膜片挠度与载荷的关系，在经典弹性薄板理论、卡尔曼大挠度理论和薄膜理论下为环状平膜片分别建立了3种挠度-载荷数学模型。 - In this paper, the mechanism for three-dimensional evolution of the isolated Karman vortex and the thin vortex filament in a circular cylinder wake has been studied numerically using LIA method.
本文用涡动力学及LIA方法作为基本理论模型，数值研究了尾迹中孤立涡和细涡丝的三维演化规律。 - Based on these calculations, the authors analyze the science-practical nature of the Prandtl Mixing Length hypothesis, the momentum-transport theory, the Karman Similarity theory and the Taylor Vorticity Transport theory.
对卡门常数和普朗特混合长度进行了理论计算，并据此分析和论证了普朗特混合长度假说与动量传递理论和卡门关于紊流局部运动相似理论以及泰勒的涡旋传递理论的科学性和实用性。 - Starting from the moderate rotation theory, the rationality of von Karman type geometrical nonlinear theory is proved by means of analysis of the orders of magnitudes of the various strains and rotations.
从中等旋转理论出发，通过对各个应变、旋转进行数量级上的分析，严格地论证了采用VonKarman型几何非线性理论的合理性。 - The results confirm that twice global mode switching and a Hopf bifurcation occur with increasing Reynolds number Re up to which the Karman vortex street forms, and the first explanation of this phenomenon with absolute/ convective instability theory is given.
结果证实，随着Re数的增加直至Karman涡街形成，先后发生了两次整体模态的跳跃和一次Hopf分叉，并首次用绝对／对流不稳定性理论解释了这一现象。 - Based on Von Karman theory for large deflections of thin plate, the thermal buckling of polar orthotropic annular plates is discussed by using the governing equations in terms of displacements.
基于VonKarman薄板大挠度理论，通过位移形式的控制方程，分析和讨论了极正交各向异性环板的热屈曲问题。 - This method was demonstrated on in vitro Doppler signals recorded from both steady and pulsatile flow using a Karman vortex generator.
文中还给出了这种方法对从卡尔曼涡流产生器记录的稳流和脉动流多普勒信号的分析结果。 - With the computation results, the forming mechanism of reverse Karman vortex street and the thrust to fish when it swim are analyzed, and the influence of different St number to thrust is researched as well.
结合计算结果对鱼类游动时反卡门涡街的形成和鱼体推力的产生机理进行了分析，并对不同斯特哈尔数对推力的影响进行了研究。 - The phonon dispersion curves of diamond, Si, Ge and a-Sn are calculated using the six-parameter Born-von Karman model.
用6参数Born-VonKarman模型计算了金刚石、Si、Ge和α-Sn的声子色散曲线。 - Karman vortex in the time-averaged wake flow field wolves into a horseshoe-spoon-like three-dimensional structure.
卡门涡在尾迹平均流场中演化产生三维的类似于马蹄形-勺子形的流场结构。 - The analysis in frequency domain and simulation result in time domain show that this model has better statistical characteristic than the Dryden 3-D model, and has solved the realization problem in simulation of Von Karman model.
通过频域上的分析比较和时域的仿真计算，结果表明该模型生成的紊流比以往的Dryden模型更好地符合了大气数理统计特性，并解决了VonKarman的仿真实现问题。 - In the second part of this paper, the Von Karman, the Wagner and MLM models are introduced.
文章的第二部分介绍了冯卡门、瓦格纳及MLM三种理论模型，对三种模型的计算结果和适用范围进行了比较分析。 - It was found that energy distribution of wind speeds spectra used in high-frequency domain affect the buffeting effects, the buffeting response value is reduced with the increase of turbulence integral scale when the horizontal and vertical wind velocity spectrum with spectra Von Karman spectrum are used.
结果发现，常用风速谱的在高频域的能量分布直接影响抖振的响应，当水平向风速谱和竖向风速谱采用VonKarman谱时，抖振响应值随着湍流积分尺度的增大而减小。 - This paper uses Auto-regressive moving-average ( ARMA) model to simulate the wind records based on Von Karman spectral.
本文在已知VonKarman功率谱密度函数的情况下，选择利用自回归滑动平均（ARMA）模型来仿真风速。