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 水击计算
 water hammer calculation
 Thinking on the Water Hammer Calculation Method for Dahuashui Hydropower Plant 对大花水水电站水击计算方法的思考 短句来源 This paper, firstly, presents briefly the basic theories of current water hammer calculation including both water hammer mathematic model and calculative methods; 本论文首先简要介绍了当前水击计算的基本理论，包括水击数学模型和计算方法。 短句来源 Consequently ,the paper makes out experimental investigation and numeric calculation for phenomenon of water hammer, and deeply proves that the continuity equation for water hammer calculation is false by comparing and analyzing them. 接着，进行了水击现象的试验研究和数值计算，并将二者进行了比较分析，进一步证明前面分析的结论，水击计算的连续性方程确实是错误的。 短句来源 Firstly, The paper describes briefly the basic theories of current water hammer calculation including both water hammer mathematic model and calculative methods; 首先,本文简要介绍了当前水击计算的基本理论,包括水击数学模型及其求解方法,指出了当前水击数学模型中存在的不足。 短句来源 Against the unreasonable things in current water hammer equation, the new system of equations of water hammer calculation is obtained associating elasticity equation of conduit and elasticity equation of water by precise deduction using new idea in this paper. 接着，本文针对当前水击方程中的一些不合理现象，采用全新的思路重新进行了严谨的推导，引入液体弹性方程和管壁弹性方程后得到了更加完善的水击计算的基本方程组，形式如下： 短句来源 更多
 water striking pressure calculation
 Water striking pressure calculation of hydropower station 水电站的水击计算 短句来源
 “水击计算”译为未确定词的双语例句
 Application of Lattice Boltzmann Method ——Waterhammer Simulation Lattice Boltzmann 方法应用实例——水电站水击计算 短句来源 Hydraulic characteristic analysis and surge pressure calculation for check valve 止回阀水力特性分析及水击计算 短句来源 Validate of calculation and experimentation about water hammer 水击计算与方程的实验验证 短句来源 Method of Characteristics for Computation of Waterhammer in Conical Tubes 锥管水击计算的特征线法 短句来源 Through analyzing and comparison between calculation and experimentation about water hammer,the paper presents the illegitimacy in the basic continuity equation in closed pipes and provide a reference to the further investigation. 通过实验与数值计算的比较与分析,指出管道水击计算的基本方程组中连续性方程的不合理性,为以后对方程的进一步完善提供有益的参考。 短句来源 更多

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 ~~ 本文首先从波的反射原理論述了水击波反射的一般规律,从而导出了计算調节閥門处反射系数的公式,然后在此基础上建立了簡单管路水击计算的新公式。新公式的特点是概念明確、計算簡便、不必逐項求解。最后,本文又根据水击波的反射原理,对复杂管路的水击計算提出了新的計算方法。 In the present paper the water hammer equations were derived with the concepts of the water hammer wave functions. The derivation is simple and clear. General expression of the reflective and transmissive coefficients and the water hammer computation were given on the basis of the wave functions. The relation between the water hammer pressure and the water hammer wave functions, and the mathematical models for computing were established. 本文用水击波函数的概念推导了水击方程,推导简单、清楚。在波函数的基础上,给出了反射系数、透射系数和水击计算的通式,建立了水击压力和水击波函数之间的关系,以及电算的数学模型。 对水击计算来讲,本文方法是一种新的途径和尝试。 In this general program, the characteristic method of equal time interval grid is used for calculating water hammer, the gate is nonlinearly (or linear ly ) opened and closed. The program is concise, accurate, and easy to use. Less memory elements and shorter calculating time are needed only. Different results of calculating water hammer in series pipes or simple pipes can be quickly obtained by keying in various data. ( without modifying the program ) It may be used for water hammer calculation in combined... In this general program, the characteristic method of equal time interval grid is used for calculating water hammer, the gate is nonlinearly (or linear ly ) opened and closed. The program is concise, accurate, and easy to use. Less memory elements and shorter calculating time are needed only. Different results of calculating water hammer in series pipes or simple pipes can be quickly obtained by keying in various data. ( without modifying the program ) It may be used for water hammer calculation in combined series pipe-lines and various simple pipe-lines, such as steel pipes, reinforced concrete pipes in open air, non-lined tunnels, underground pipe-lines (steel plate liner, reinforced concrete liner, and combined liner), etc. It is especially efficient to calculate water hammer for many different cases. 本通用程序中,水击计算采用等时段网格特征线法,阀门启闭为曲线(含直线)变化规律。本程序结构紧凑,需要存贮单元少,使用方便灵活,节约计算时间,成果精度高,只要从键盘上改变输入的数据(程序本身不需更动),便能迅速得到相应情况下,串联管或简单管的水击计算结果。可用于露天钢管、露天钢筋混凝土管、无衬砌隧洞和埋藏式管道(钢板衬砌或钢筋混凝土衬砌或混合衬砌)等组合的串联管,以及各种简单管道的水击计算。特别对于大量不同情况下的水击计算更显优越。 << 更多相关文摘
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