• 设计过程中,CFD模拟分析一直沿用专业/超级软件中。

    During the design process, CFD wind field simulation analysis was employed alongside with professional/spectacular software.

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  • 谐波合成修正描述法结合用于大跨度桥梁主梁及桥随机模拟

    A combination of the wave superposition method and the modified spectral representation method is applied to a wind field simulation for whole bridge including the deck and the towers.

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  • 模拟是一个新的尝试,即依靠已有的而是利用实际记录的方法

    The method making a new task in simulating natural wind. not to depend on old wind spectrum, it depends on real wind velocity continuous records.

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  • 考虑发电机组旋转效应准确确定作用荷载,研究基于旋转样本进行模拟问题。

    In order to consider the rotational effect of blades and determine the exact loads of the wind turbine system, wind field simulation based on the rotationally sampled spectrum was studied.

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  • 模拟涉及参数主要包括脉动空间相关函数,对洞中的风场参数进行了实测拟合并应用风场模拟当中。

    Wind field parameters involved in wind field simulation include mainly turbulent wind power spectrum density and spatial-correlation function, which is measured and applied to wind simulation.

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  • 利用改进边界层模式,对平坦地形条件的非定常边界层进行数值模拟

    Using the improved boundary layer model, under horizontal homogeneous geographical conditions, the nonconstant wind and temperature fields have been simulated numerically.

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  • 数值模拟技术应用南京奥林匹克体育中心体育随机荷载模拟,计算结果表明该方法的有效性

    The proposed method is applied in the numerical simulation of random wind load on Nanjing Olympic Stadium. The results verify the effectiveness and efficiency of the simulation method.

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  • 针对带入口新型文丘利调器流数值模拟提出了一种分析模型处理方法

    With respect to the numerical simulation of the flow field of a novel Venturi air register incorporating an inlet swirler proposed is an analytical model along with a processing method.

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  • 采用计算机模拟分析大气测量效果

    Computer simulation is employed for analyzing the effects of the measurement of the upper atmospheric wind field.

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  • 利用修改Mass模式辽宁地区地形资料模拟地形加热作用对辽宁地区近地层变化的影响。

    Using the modified MASS model and terrain data of Liaoning, the effect of terrain on diurnal variation of the wind field in the ground layer is simulated.

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  • 根据随机过程理论计算机模拟生成具有空间相关性

    Based on random process theory, wind fields with spatial correlativity were simulated in computer.

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  • 结果表明模式静力模式合理地模拟海岸边界层湍流,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.

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  • 本文从几种建筑物模式环境进行数值模拟出发,给出了几种常见建筑模式的

    The wind environment of some building models numerically simulated and the stream and vortex fields of the flow around some common buildings are given.

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  • 采用北京大学城市大气边界层模式模拟城区绿化带城市温度风场空气质量影响

    The impact of greenbelt at the downwind periphery of an urban area on urban atmospheric environment and air quality was simulated by using the Peking University Urban Atmospheric Boundary Layer Model.

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  • 数值模拟预测效果不仅取决于湍流模型数值迭代方法,还强烈依赖于离散网格质量布局的合理性。

    The rationality of numerical prediction results not only depends on the turbulent model and iterative numerical method adopted but also on the quality and layout of the division grid.

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  • 本文分析了1999年各地草地主要迁入天气背景时空分布及草地螟迁飞轨迹进行了模拟

    We analyzed the weather background during the major immigration period in 1999, and stimulated temporal-spatial dynamics of wind field and migration trajectories of the meadow moth.

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  • 精确地给出协调海面正确模拟海浪海洋环境要素前提条件特别强海况的情况下尤其如此。

    Accurate and coordinate sea wind field is the precondition to simulate correctly waves and the other Marine and environ-mental factors, especially in the rough sea conditions.

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  • 应用紊流模拟方法建筑物环境进行了数值模拟

    The large eddy simulation approach is applied to airflow field around buildings.

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  • 时域进行大型结构气动弹性动力响应分析,必须首先模拟该结构所受到的气动荷载处自然时间历程

    To carry out the dynamic response prediction of a large structure subjected to a stochastic wind field in time domain, it is required to simulate time histories of wind loads or the wind field.

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  • 其次利用OGRE粒子系统效果器,模拟简单烟幕扩散影响

    Second, a simple wind that impacts the dispersion of smoke is simulated using OGRE particle system affecter.

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  • 此外,由一个行星波一平均耦合模式模拟结果表明这个热带风场的变化可以通过波流相互作用调制行星波沿高纬度波导传播。

    Our results of the wave-mean flow coupled model show that these tropical winds can also modulate the high latitude waveguide significantly in the case of wave-mean flow interaction.

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  • 小区为例,对其环境进行数值模拟计算分析,引入梯度概念,指出了小区内建筑分布对小区影响

    The wind environment of a district is calculated and analyzed with numerical simulation, the concept of gradient wind is proposed to explain that buildings' distribution affect the wind field.

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  • 同济大学TJ-3边界层汕头跳水游泳馆模型在模拟的大气边界层进行了测试验

    A test of wind pressure distribution on the Shantou Natatorium and Diving Room has been carried out in TJ-3 Boundary Layer Wind Tunnel in Tongji University.

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  • 随机脉动模拟大跨度桥梁颤抖时域分析前提

    Simulation of stochastic wind velocity field is prerequisite to flutter or buffeting analysis of long-span bridges in time-domain.

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  • 通过气压模拟得到计算,在此基础上采用跟踪计算方法取得台域内波浪分布。

    The wind field has been calculated by the simulation of the pressure field of typhoons, and then the wave field in the region of typhoons has been obtained by use of the tracing method.

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  • 结果表明系统能够较真实地表现树木的形态结构特征,形象地实现树木风场中的模拟

    The result shows that this system can perform the morphostructural character and realize the simulation of tree really.

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  • 采用数值模拟计算方法,计算作用时向气动升力系数、气动横向系数力矩系数,得出各系数车辆速度之间的变化关系。

    Using numerical computation of fluid flow, the coefficients of vertical force, lateral force and rolling moment caused by cross-wind were calculated, which were related to train speed and wind speed.

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  • 采用快速傅立叶变换法(FFT)编制荷载模拟程序实现了随机计算机仿真,仿真得到了16维脉动荷载时样本。

    Using FFT to workout a wind load simulation program. The computer simulation of the stochastic wind field is achieved. The 16-dimensional random process is got.

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  • 结果表明:(1MM5模式能够好地模拟气压降水量,在预报业务实践中有很好地参考价值;

    The results show that (1) MM5 is better in simulation of steam field, sea-level pressure field and precipitation.

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  • 采用加密网格的大模式获取边界层、温高分辨率模拟结果,并据以分析地面大气的湍流特性。

    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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