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首页> 外文期刊>European Journal of Mechanical and Environmental Engineering >Further Analysis of the Aerodynamic Behaviour of Flow Conditioners
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Further Analysis of the Aerodynamic Behaviour of Flow Conditioners

机译:流量调节器空气动力学特性的进一步分析

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The flow development downstream different combinations of flow conditioners, namely the Laws perforated plate, the tube bundle and the Etoile, has been investigated by measuring the axial velocity component and the turbulence intensity with a Laser Doppler Anemometry technique. The development of the velocity profile and the axial turbulent intensity downstream a 90° out of plane double bend with and without a flow conditioner, have been examined. The performance of the three devices in conditioning the disturbed flow and to produce the fully developed flow condition with respect to the standards specifications has been studied. Experiments have been performed with airflow through a circular pipe of 100 mm internal diameter. Discharge coefficient shifts due to the flow distortion were determined for three orifice meters with a diameter ratio p=0.5, 0.62 and 0.70 at flow Reynolds number ranging from 0.79 to 3.21 x 10~5.
机译:通过使用激光多普勒风速仪技术测量轴向速度分量和湍流强度,研究了流量调节器下游不同组合(即定律穿孔板,管束和星云)下游的流动发展。检查了有无流动调节器的情况下,在平面双弯曲90°下游的速度分布和轴向湍流强度的变化。已经研究了这三种设备在调节扰动流量以及产生相对于标准规格而言完全发展的流量条件方面的性能。已经对气流通过内径为100 mm的圆形管进行了实验。在流量雷诺数范围为0.79至3.21 x 10〜5的情况下,对于直径比为p = 0.5、0.62和0.70的三个孔板,确定了由于流动畸变引起的流量系数变化。

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