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    • 1. 发明申请
    • VELOCITY DISTRIBUTIONS OF A FLUID FLOWING THROUGH A TUBE CROSS SECTION
    • 管道由横截面流动液体车速分布
    • WO2008022628A3
    • 2008-05-29
    • PCT/DE2007001474
    • 2007-08-17
    • BUNDESREP DEUTSCHLANDLEDERER THOMASWENDT GUDRUNMATHIES PETER NICOLAUSTOEBBEN HELMUTDUES MICHAELMUELLER ULRICH
    • LEDERER THOMASWENDT GUDRUNMATHIES PETER NICOLAUSTOEBBEN HELMUTDUES MICHAELMUELLER ULRICH
    • G01P5/26G01F1/66G01S17/58
    • G01P5/26G01F1/661G01S17/58
    • A method for measurement of velocity distributions of a fluid flowing through a tube cross section and scattering light, in which in each case at least two independent velocity components (w, v x , v y ) of the flow are measured by means of at least one laser-Doppler anemometer (LDA measurement probe), which is arranged outside a tube (1, 26, 39) with a tube centre axis (8), at a plurality of measurement points (10, 15, 18, 32), which are arranged distributed over the tube cross section, can be improved if the velocity components (w, v x , v y ) for each measurement point (10, 15, 18, 32) are measured with reference to a spatially fixed coordinate system (7), one of whose axes (z) coincides with the tube centre axis (8), or is shifted parallel to it, and whose two other axes lie on the same plane as the tube cross section, and such that radial and tangential velocity components are in each case calculated from the two velocity components (v x , v y ) on the same plane as the tube cross section. A measurement arrangement for carrying out the method is also proposed.
    • 一种用于测量流过管道的横截面的流体的速度分布的方法,所述光散射流体,其中通过管(1,26,39)与一个管中心轴中的至少一个外的装置(8)布置的激光多普勒测速仪(LDA测量探针)在一个 多个穿过管道截面的分布设置的测量点(10,15,18,32)分别具有至少两个独立的速度分量(U,V X ,V ý)是测量的流量, 当速度分量(U,V X ,V ý),用于每个测量点(10,15,18,32)相对于一个空间固定坐标系可以改善(7 )被测量,其重合的轴线(z)提供给管中心轴(8)或该移位平行,另外两个轴趴在管道横截面的平面中,并且(在每两个趴在管道横截面的速度分量v的平面的 计算X v ý)径向和切向速度分量。 此外,测量系统被引入用于进行所述方法。