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首页> 外文期刊>Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics >Oblique inlet pressure loss for swirling flow entering a catalyst substrate
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Oblique inlet pressure loss for swirling flow entering a catalyst substrate

机译：斜流入口压力损失，用于涡流进入催化剂基材

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摘要

This experimental study investigates the oblique inlet pressure loss for the entry of an annular swirling flow into an automotive catalyst substrate. The results are applicable to a wide range of compact heat exchangers. For zero swirl, the total pressure loss agrees with established expressions for pressure loss in developing laminar flow in parallel channels with finite wall thickness. For positive swirl, the additional pressure loss due to oblique flow entry is correlated to the tangential velocity upstream of the catalyst, measured using laser-Doppler anemometry. The obtained oblique inlet pressure loss correlation can improve the accuracy of numerical calculations of the flow distribution in catalysts. (c) 2008 Elsevier Inc. All rights reserved.
机译：这项实验研究调查了环形旋流进入汽车催化剂基材时的斜进气压力损失。结果适用于各种紧凑型热交换器。对于零涡流，总压力损失与壁厚有限的平行通道中形成层流时压力损失的既定表达式一致。对于正涡旋，由斜流进入引起的额外压力损失与使用激光多普勒风速仪测量的催化剂上游的切线速度相关。所获得的倾斜的入口压力损失相关性可以提高催化剂中流动分布的数值计算的准确性。 （c）2008 Elsevier Inc.保留所有权利。

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