3D velocity calculation in flow field measurement of cyclone separators | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
提要 在利用五孔探针测试旋风除尘器内流场时,探针标定情况及实验模型不同,所应采用的三维速度计算公式也就不同。这一点在测试研究中常常被忽视,从而得出错误结论,而该错误又不易被发现。给出了各种情况下三维速度的计算公式及探针测孔分布和β角正负规定的自我叛别方法。 关键词 旋风除尘器 五孔探针 三维速度 Abstract Reveals that different five-orifice pitot tubes and cyclone models entails using different formulas of three-dimensional velocity, which is often neglected and causes errors that are difficult to be found. Presents the formulas for all conditions and recommendates a method for determining the holes distribution and recommendates a method for determining the holes distribution of the tube and the sign designation of the angle β. Keywords cyclone separator five-orifice pitot tube 3D velocity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1 前言
②对右旋旋风除尘器,使用a型探针,速度分解如图3所示。此时 |
旋风除尘器内流场测试中三维速度的计算方法
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