The effect of volumetric quality on heat transfer and fluid flow characteristics of air-assistant jet impingement

被引：14

作者：

Friedrich, Brian K. ^{[1
]}

Glaspell, Aspen W. ^{[1
]}

Choo, Kyosung ^{[1
]}

机构：

[1] Youngstown State Univ, Mech & Ind Engn Dept, Youngstown, OH 44555 USA

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2016年 / 101卷

关键词：

Impinging jet; Two phase; Hydraulic jump; FREE-SURFACE JET; LIQUID JET; HYDRAULIC JUMP; RADIAL SPREAD; GAS; MODEL;

D O I：

10.1016/j.ijheatmasstransfer.2016.05.021

中图分类号：

O414.1 [热力学];

学科分类号：

070201 [理论物理];

摘要：

Heat transfer characteristics of air-assistant water jet impingement was experimentally investigated under a fixed water flow rate condition. Water and air were used as the test fluids. The effects of volumetric quality (beta = 0-0.9) on the Nusselt number and pressure were considered. The results showed that the stagnation Nusselt number increased with volumetric quality, attained a maximum value at around 0.8 of the volumetric quality, and then decreased. The stagnation Nusselt number of the air-assistant water jet impingement is governed by the stagnation pressure. Based on the experimental results, a new correlation for the normalized stagnation Nusselt number is developed as a function of the normalized stagnation pressure alone. In addition, the lateral variation of Nusselt number is governed by hydraulic jump radius. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：261 / 266

页数：6

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