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double-channel
    Numerical Simulation for Incompressible Turbulent Flow in Impellers of Double-Channel Pumps
    双流道泵叶轮内湍流的数值模拟
    Study on Optimum Hydraulic Design of Double-channel Pump
    双流道泵优化水力设计
    Performance prediction of double-channel pumps
    双流道泵性能预测的研究
    Improved method for hydraulic design of double-channel pumps
    双流道泵水力设计的研究
    Advances in Hydraulic Design of Double-channel Pump
    双流道泵水力设计研究现状及发展方向
    Design and Experimental Research on Double-channel Pump of Solid-liquid Two-plase
    固液两相双流道泵的设计与试验研究
    Research on the Performance Forecasting of a Non-overload Double-channel Sewage Pump
    无过载双流道排污泵性能预测研究
    On the bases of many designs and tests , provides the hydraulic design way on computer aideddesign of double-channel impeller, and with some main parameters.
    摘 要:在大量试验研究和设计实践的基础上,给出了双流道叶轮计算机辅助设计的方法,并对一些主要参数进行了统计分析。
    The 3-d turbulent flow in the impellers of double-channel pump issimulated in this paper.
    对双流道泵叶轮内三维不可压湍流流动进行了数值模拟。
    The calculated velocity and pressuredistributions of the turbulent flow in double-channel pumps are given for the firsttime, which will be supportive to the optimal design and performance prediction ofdouble-channel pumps on the basis of flow field simulation.
    计算结果揭示了双流道泵叶轮内湍流流动的压力分布和速度分布规律。 研究结果可以用来对双流道泵进行性能预测并为双流道泵的优化设计创造了条件。
    On the basis of many tests and designs, an improved method for the hydraulic design of double-channel pumps was provided, and some main parameters of the impeller and volute by statistics and analysis were concluded.
    在大量试验研究和设计实践的基础上,对双流道泵叶轮和蜗壳的一些主要几何参数进行了统计分析,发展和完善了双流道泵水力设计方法。
    The research results have been applied to the product design of double-channel pumps.
    研究成果已经被大量应用到双流道泵产品开发中。
    Research situations in hydraulic design of double-channel pump are analyzed.
    双流道泵水力设计的主要目标就是根据给定的参数(流量、扬程、转速等),使所设计的泵具有最高的效率、必要的汽蚀余量和良好的无堵塞性能,并使泵的外特性符合预先给定的要求。
    The paper discusses similar conversion, speed coefficient, optimize design and computer aided design in hydraulic design of double-channel pump. Their merits and defects are provided. Development directions in hydraulic design of double-channel pump are putted forward.
    为此,分析了双流道泵水力设计的研究现状,讨论了双流道泵相似换算法、速度系数法、优化设计及计算机辅助设计等水力设计方法,并分析了各自的优缺点,提出了双流道泵水力设计的发展方向。
    In the design on a non-overload double-channel sewage pump,compared to the test results,the performances forecasted by the formula have greater error.
    在进行无过载双流道排污泵设计时,利用公式预测的性能和试验结果有较大误差。
    Flow analysis indicated that the relative flow angle of an ordinary centrifugal pump impeller almost equaled to the blade outlet angle,and in the double-channel impeller velocity triangle,the relative flow angle is quite different from the blade outlet angle,so using the blade outlet angle to forecast performance was the main reason of causing errors.
    对此,通过流动分析指出,普通离心泵相对液流角与叶片出口安放角相差不大,而在双流道叶轮出口速度三角形中,相对液流角与叶片出口安放角相差较大,因此,用叶片出口安放角进行性能预测是造成误差的主要原因。
    In this thesis a non-overload performance forecasting method of the double-channel pump was provided: β2 is the blade back outlet angle;
    提出了双流道泵无过载性能预测的计算方法:! 2应取叶片背面出口安放角;
    The hydraulic design method of double-channel pump for delivering solid-liquid media is brought forward and adopted to develop two double-channel pumps which were tested on pumping clear water,sullage and solidliquid media with cobbles.
    提出了双流道固液混合输送离心泵的水力设计方法,研制了2台输送大直径固体颗粒的双流道离心泵,并进行了清水试验、清淤试验及输送卵石的试验研究。
    The proposed grid generation algorithm is found to be effective and efficient in body-fitted grid generation of double-channel pump impeller, and can be also used for other irregular configurations after adjusting.
    研究表明:利用块结构化网格技术牛成的双流道泵叶轮计算网格品质良好,能有效提高叶轮内流分析前处理环节的效率和精度; 编写的三维网格生成程序针对性强,可进一步用于双流道泵叶轮的参数化网格生成研究,且具有一定的通用性,经改进也可用于其他非规则几何形状流道网格的自动生成。
 

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