Heat and flow characteristics of V-shaped protrusion/concavity combined with miniature V-ribs

被引：9

作者：

Kaur, Inderjot ^{[1
]}

Singh, Prashant ^{[1
]}

机构：

[1] Mississippi State Univ, Dept Mech Engn, 210 Carpenter Engn Bldg,POB 9552, Starkville, MS 39762 USA

来源：

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS | 2020年 / 78卷 / 08期

关键词：

TURBULENT-FLOW; FLUID-FLOW; TRANSFER AUGMENTATION; REYNOLDS-NUMBER; SQUARE CHANNELS; DIMPLES; PROTRUSIONS; DUCT; PERFORMANCE; PARALLEL;

D O I：

10.1080/10407782.2020.1793549

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Heat and flow characteristics of V-shaped protrusion/concavity combination with45 degrees miniature V-rib has been investigated numerically at flow Reynolds number of 50,000. With suitable baseline studies, a total of six different configurations viz. (a) V-rib only, (b) 'V-rib and V-protrusion', (c) 'V-rib and V-concavity', (d) V-protrusion only, (e) V-concavity only, (f) Sparse V-rib, were studied in a square channel with the above features installed on single wall. With air as the working fluid, the heat transfer mechanism and pressure drop characteristics were compared for all the configurations. The compound configuration of 'V-rib and V-protrusion' exhibited the highest thermal hydraulic performance (THP) of 2.15.

引用

页码：359 / 377

页数：19

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