le method meaning in English
浸出电解法
Examples
- Therefore , the paper establishes the parallel computing platform and meets the demand of computing resources for large eddy simulation . it also studies the integration of cad / cam , grid generation system and cfd system , and brings the model computed in the paper into this system . on the bases of systematical and thorough numerical simulation researches in circular cylinder and the compares between instantaneous piv metrical results and numerical results of circular cylinder , the paper obtained some problems and several conclusions which should be noticed in les for making correct computatioa finally , by using these experiences and conclusions above and by putting them into an actual problem in engineering - optimized numerical simulation of static mixer , this paper achieved the turbulent high - level numerical simulation technique , i . e . , system atical attempt in engineering application by les method
为此，搭建了微机并行计算平台，解决了大涡模拟对计算资源要求；对cad cam 、网格生成与cfd系统集成进行研究，并将论文中所要计算的模型纳入到此系统内；在对圆柱绕流问题进行了系统和深入的数值模拟研究和对圆柱绕流瞬态piv测量结果与数值计算结果进行比较工作基础上，得到大涡模拟方法正确计算所需要注意问题和若干结论；最后利用以上得出的计算经验和结论，通过对一个实际工程问题? ?静态混合器优化的数值计算，完成了cfd中湍流高级数值模拟技术? ?大涡模拟方法工程应用的系统尝试。 - Based on the vibration test in yantan hydropower house , in this paper the author adopt les method which belong to three dimensions unsteady turbulent flow numerical analysis to simulate vibration resource characteristics of hydrogenerator set , a harmonic vibration model of powerhouse substructure is put forward to carry out firstly a precise modal analysis and dynamic response analysis for generator floor . the numerical calculation results agree well with the surveyed data in situ
本文结合岩滩水电站厂房振动的试验研究，采用非定常湍流数值分析的大涡模拟方法进行混流机组水力振动振源模拟；提出一种水电站厂房下部结构简谐振动模型，首次进行了发电机层楼板结构的精确模态分析和水力激振荷载下的动力响应分析，各项计算结果与实测数据吻合良好。 - Refined grids were utilized in a large - eddy simulation model for obtaining high - resolution planetary boundary data and analyzing surface layer turbulence . simulation results showed that refined meshes reduced turbulent contributions of subgrid scales , sensitivity of simulation results to sgs parameters decreased , and features of the whole boundary layer were explicitly resolved better . results also revealed flux - profile relationship correctly in surface layer and a good agreement of turbulent velocity characters with observation . therefore , it concluded that the les method was able for simulation of surface layer flow and turbulence , and might be used for further applications
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。结果表明，较小的网格尺度使次网格湍流贡献率大为降低，模式计算结果对次网格参数的依赖性减小，边界层整体特征得到更好的反映。同时，模拟出的近地面层通量廓线关系及湍流速度特征与实际观测结果吻合甚好，表明模式具有反映近地面层平均运动和湍流特性的能力。