turbulence相关论文
为研究双频激光雷达技术在高超声速目标探测方面的应用, 理论分析了激光在等离子中的吸收衰减特性, 以RAM-C实验数据为参考, 通过......
给出了一般光束等效曲率半径在湍流大气和自由空间中的传输方程，推导出等效曲率半径达到最小值时光束的传输距离公式，解析地讨论了等......
采用2011年1月在合肥地区复杂下垫面上使用超声风速计测得的风速三分量和温度分湍流实验观测数据,计算分析了 合肥地区冬季的不同......
为了可靠地评估大气的光束传播效应, 必须确定大气光学湍流的路径分布。采用高分辨率无线电探空仪探测光学湍流强度的垂直分布,利......
采用多层相位屏法和分步傅里叶算法相结合的方式来模拟环形艾里光束在湍流大气中传输时光斑质心漂移。通过理论和实验仿真了环形艾......
由于大气中气溶胶和湍流的存在,致使图像质量退化,依据退化的物理过程,建立了基于大气调制传递函 数(modulation transfer functio......
Under the approximations of (1) the received irradiance fluctuations of an optical wave caused by small scale turbulent ......
以5线段拟合法建立了确定湍流大气中激光对数光强起伏频谱的无标度区间的方法。根据无标度区间的标度指数与起伏强度的关系发现：频......
基于广义惠更斯－菲涅耳原理，并采用光束的非相干合成方法，推导出了M×N双曲余弦高斯列阵光束在湍流中的三维光强传输方程.采用桶中功......
研究了截断部分相干双曲余弦高斯光束在非Kolmogorov湍流中的传输。基于广义惠更斯菲涅耳原理，推导了截断部分相干双曲余弦高斯光束......
对激光通过大气传输的主要非线性过程进行数值模拟，列出大气的流体动力学方程组和与大气互作用的波方程.推导出受激热瑞利散射引起......
激光对数光强起伏的快速傅里叶变换功率谱的无标度区间的标度指数在许多情况下很不稳定, 并且超出了理论界限, 因而本文引入了离散......
描述一种可见光集合散射技术。通过氩离子激光(λ=0.514 μm)的小角度散射对自由射流的密度涨落进行初步观测，实现了流体平均速度的......
对大气湍流相干长度的统计特征进行了理论分析，给出了其概率分布密度函数，同时分析了光束大气传输湍流效应的远场斯特列尔比的随机分......
实现了一种适合戈壁沙漠地区的边界层大气光学折射率结构常数的参数化公式方法。通过测量边界层内温度、风速和压强等相关常规气象......
利用一个高速多单元哈特曼传感器对旋转相位屏模拟大气湍流的空间特性和时间特性进行了研究。空间特性方面，计算了湍流的大气相干长......
Turbulent flow in a 3-D blade passage of a Francis hydro turbine was simulated with the Large Eddy Simulation (LES) to i......
Eutrophication and algal bloom has been occurring in the Three Gorges Reservoir ever since the reservoir’s impoundment ......
近年有人提出室性早博（室早）后窦性心率震荡（heart rate turbulence，HRT）现象，认为其发生与自主神经活动有关。......
For the purpose of investigating the turbulent and spatial coherent characteristics of strong wind during typhoon landin......
Lean premixed flame characteristics of several typical low calorific value (LCV) syngases (basis CO/H2/CH4/CO2/N2),inclu......
Hydraulic performances of skimming flow over stepped spillway was studied by means of hydraulic model experiment. The s......
Submerged vanes are hydrofoils utilized to manage the sediment transport through the river by generating the turbulence ......
With Venus Express magnetic field measurements at 32 Hz from 2006 to 2012, we investigate statistically the magneticfluc......
Diffusion of ions in an electrostatic stochastic field and a space-dependent unperturbed magnetic fi
We calculate the diffusion coefficients for ions moving in a prescribed electromagnetic field.The field is considered to......
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Based on the gas-liquid two-phase mixture transportation test,the k-ε-Ap turbulence model was applied to simulate the t......
Natural ventilation performance of single room building with fluctuating wind speed and thermal mass
Natural ventilation is driven by either buoyancy forces or wind pressure forces or their combinations that inherit stoch......
For super high-rise buildings,the vibration period of the basic mode is several seconds,and it is very close to the peri......
A new-type corrugation Plate Heat Exchanger (PHE) was designed. Results from both numerical simulations and experiments ......
In this paper,the turbulence characteristics of the tidal flow in the Qiantang River,China,the world-famous Qiantang bor......
The flame-holding mechanism in hypersonic propulsion technology is the most important factor in prolonging the duration ......
Transcritical film cooling was investigated by numerical study in a methane cooled methane/oxygen rocket engine.The resp......
This paper presents a numerical analysis of gas-solid separation in a rotational tube separator. This separator which co......
A mathematical model is set to evaluate the 3-D dense solid-liquid two-phase turbulent flow in a non-clogging mud pump, ......
The fluid flow and heat transfer of the shell-side in one type of flat-tube heat exchangers(FHE) were studied through nu......
The pressure fluctuation in the flow passage of both impeller and casing is addressed on design condition.The initial co......
Performance prediction for centrifugal pumps is now mainly based on numerical calculation and most of the studies merely......
In this study,the preferential concentration and clustering of inertial particles in fully developed turbulent square du......
微囊藻群体大小和形态决定其垂向迁移能力,从而影响着水华的形成.为了探讨湖泊中风生紊流对微囊藻群体大小和形态的影响,本研究于2......
Noise reduction of acoustic Doppler velocimeter data based on Kalman filtering and autoregressive mo
Oceanic turbulence measurements made by an acoustic Doppler velocimeter (ADV) suffer from noise that potentially affects......
Kinetic-scale magnetic holes (KSMHs) are structures characterized by a significant magnetic depression with a length sca......
Reynolds-Averaged Navier-Stokes Equations Describing Turbulent Flow and Heat Transfer Behavior for S
Supercritical fluid has been widely applied in many industrial applications.The traditional Reynolds-averaged Navier-Sto......
The experimental investigation of axial-flow pump has been rapidly developed to meet the needs of South-to-North Water D......
The liquid phase turbulent structure of an air-water bubbly horizontal flow in a circular pipe has been investigated exp......
Based on aperture averaging effects on scintillation, a diversity reception system consisting of three apertures has bee......
The average bit-error rate(ABER) performance of free-space optical(FSO) communication links is investigated for space-sh......
在自由空间光通信(FSO)中,由系统设计以及大气湍流所引起的光强闪烁和相位起伏会造成圆偏振控制误差,这严重影响圆偏振位移键控(CP......
Production of metallic iron nanoparticles in a baffled stirred tank reactor: Optimization via comput
The aim of this work is to optimize iron nanoparticle production in stirred tank reactors equipped with two classical im......
