Flow field characteristics analysis of single vortex water washer

Authors

WU Yan, Jiangsu Province Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
JIN Guangyuan, Jiangsu Province Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
CUI Zhengwei, Jiangsu Province Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China

Abstract

The fluid dynamic characteristic of vortex flow washing in a fruits and vegetables washer unit with U-shaped structure was investigated by three-dimensional Computational Fluid Dynamic simulation (CFD). The single vortex flow formed by longitudinal and transverse water jet in washer unit was simulated at different flux rates of longitudinal and transverse water jet. The vortex flow dynamic characteristic in water unit and the effect of vortex flow on strengthening turbulent washing were discussed. The simulation results shows that flux rate has a dominant effect on vortex flow spacious distribution and intensity; the interaction between longitudinal and transverse water jet is controlled by location of longitudinal jet; when longitudinal jet appears near transverse jet the interaction occurs significantly and is benefit to transport washing flow towards outlet; vortex flow region appears high turbulent intensity to enhance the washing micro dynamic.

Publication Date

2-28-2015

First Page

93

Last Page

98

DOI

10.13652/j.issn.1003-5788.2015.01.022

Recommended Citation

Yan, WU; Guangyuan, JIN; and Zhengwei, CUI (2015) "Flow field characteristics analysis of single vortex water washer," Food and Machinery: Vol. 31: Iss. 1, Article 22.
DOI: 10.13652/j.issn.1003-5788.2015.01.022
Available at: https://www.ifoodmm.cn/journal/vol31/iss1/22

References

[1] 杨红兵,丁为民,陈坤杰,等.新型蔬菜清洗机的研制［J］.农业工程学报,2005,21(1):92~96.
[2] 杨红兵.新型蔬菜清洗机的研制与试验研究［D］.南京:南京农业大学, 2004.
[3] Mulugeta E, Geyer M. Characterising the washing processes of vegetables and potatoes［J］. Biosystems engineering, 2005, 91(4): 441~453.
[4] Butz P,Fernández García A,Lindauer R,et al.Influence of ultra high pressure processing on fruit and vegetable products［J］.Journal of Food Engineering,2003,56(2):233~236.
[5] Zhou B, Feng H, Pearlstein A J. Continuous-flow ultrasonic washing system for fresh produce surface decontamination［J］. Innovative Food Science & Emerging Technologies, 2012(16):427~435.
[6] 高愿军,樊振江,路源,等.清洗方式对鲜切莴笋品质和农残去除的影响［J］.食品与机械,2011,27(5):159~162.
[7] 张向阳,王丹,马越,等.清洗方式对鲜切胡萝卜处理效果的影响［J］.食品与机械,2012,28(5):189~192.
[8] 王莉,丁小明.淹没水射流方式清洗蔬菜的探索研究［J］.农业工程学报,2007,23(12):124~130.
[9] 王莉,陈勤超.淹没水射流方式清洗樱桃番茄的试验研究［J］.农业工程学报,2007,23(9):86~90.
[10] 陈勤超.流体式与气泡式蔬菜清洗机清洗效果的比较与研究［D］.武汉:华中农业大学,2007.
[11] Ball C G, Fellouah H, Pollard A. The flow field in turbulent round free jets［J］. Progress in Aerospace Sciences, 2012(50):1~26.
[12] 许晓东,史桂宏.一种果蔬涡旋清洗机:中国, 200910031700［P］.2010-12-29.