Flow field in a hot air jet impingement oven - Part II: Multiple impingement jets

被引：14
|
作者：
Marcroft, HE [1 ]
Chandrasekaran, M [1 ]
Karwe, MV [1 ]
机构：
[1] Rutgers State Univ, Cook Coll, Dept Food Sci, New Brunswick, NJ 08903 USA
来源：
JOURNAL OF FOOD PROCESSING AND PRESERVATION | 1999年 / 23卷 / 03期
关键词：
D O I：
10.1111/j.1745-4549.1999.tb00382.x
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
The axial velocity component of three and four jet arrays impinging on a flat plate have been measured using a laser Doppler anemometer. The axial velocity profiles for all jets were found to demonstrate characteristics of a turbulent jet in its potential core region. Between neighboring jets, reversal of the airflow occurred. At measurements closer to the flat plate, the reverse flow velocity values were found to be about 50% of the maximum jet velocity. The results indicated that the products passing under multiple jets may experience uneven heating rates, depending upon the product size and jet orifice spacing.
引用
收藏
页码：235 / 248
页数：14
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