| 分流叶片周向位置对离心叶轮性能及内部流动的影响 |
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| 引用本文： | 卜远远,楚武利.分流叶片周向位置对离心叶轮性能及内部流动的影响[J].流体机械,2011,39(9). |
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| 作者姓名： | 卜远远 楚武利 |
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| 作者单位： | 西北工业大学,陕西西安,710072 |
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| 基金项目： | 2010年度高等学校博士学科点(博导类)专项科研基金(20106102110023) |
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| 摘 要： | 利用商用计算流体力学软件包NUMECA FINE/TURBO对Krain叶轮内部三维粘性流场进行了数值模拟研究。重点分析了分流叶片不同周向位置对该叶轮内部流动和性能的影响,得出了不同周向位置时的叶轮效率、压比随质量流量变化关系,结合对叶轮内部流场的详细分析,给出了适合此半开式离心叶轮分流叶片周向位置的最佳设计方案。研究结果表明:分流叶片不同周向位置对叶轮流道流场影响明显,当偏向主叶片吸力面一侧时可以有效提高叶轮效率。
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| 关 键 词： | 高速离心叶轮 分流叶片 数值分析 周向位置 |
Effect of the Splitter Blade Position on the Performance and the Internal Flow of Centrifugal Impeller |
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| BU Yuan-yuan,CHU Wu-li.Effect of the Splitter Blade Position on the Performance and the Internal Flow of Centrifugal Impeller[J].Fluid Machinery,2011,39(9). |
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| Authors: | BU Yuan-yuan CHU Wu-li |
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| Affiliation: | BU Yuan-yuan,CHU Wu-li(Northwestern Polytechnical University,Xi'an 710072,China) |
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| Abstract: | The three-dimensional viscous internal flow was numerically simulated by using of CFD software package NUMECA FINE / TURBO for analyzing the Krain impeller.Emphasis was focused on the effect of the splitter blade circumferential position on the internal flow and the performance of centrifugal impeller.Then the performance curves of efficiency and pressure ratio varying as mass flow rate at different circumferential position was obtained.And after the detailed analysis the internal flow,a suitable design sch... |
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| Keywords: | high-speed centrifugal impeller splitter blade numerical analysis circumferential position |
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