Open Access
 Issue JNWPU Volume 37, Number 3, June 2019 547 - 551 https://doi.org/10.1051/jnwpu/20193730547 20 September 2019

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

1 基本知识

 图1双缝隙喷嘴射流冲击原理图

2 模型验证

 图2压力系数模拟与实验结果对比图

3 实验结果分析

1)雷诺数对压力系数的影响规律间距L/D=17.2, 正弦幅值A=0 mm, 10 mm, 20 mm和30 mm, 雷诺数Re=12 048, 24 097, 36 146和48 194时。图 3为高度H/D=1时压力系数的分布曲线。

2) 高度H/D对压力系数的影响规律

3) 不同正弦幅值对压力系数的影响规律

4) 缝隙间距对压力系数的影响规律

 图3H/D=1时压力系数曲线
 图4当Re=48 194时压力系数曲线
 图5Re为48 194时的Cp曲线
 图6当Re=48 194时不同情况的压力系数曲线

References

1. WangX, GuoM, CaoL, et al. Effect of Heating Rate on Mechanical Property, Microstructure and Texture Evolution of Al-Mg-Si-Cu Alloy during Solution Treatment[J]. Materials Science & Engineering A, 2015, 621: 8-17 [Article] [CrossRef] [Google Scholar]
2. ShenF, WangB, YiD, et al. Effects of Heating Rate During Solid-Solution Treatment on Microstructure and Fatigue Properties of AA2524 T3 Al-Cu-Mg Sheet[J]. Materials & Design, 2016, 104: 116-125 [Article] [NASA ADS] [CrossRef] [Google Scholar]
3. HouShuai, HuaFuan, BaiMeijuan, et al. Review of the Floating Technology of the Air Cushion Furnace[J]. Light Alloy Fabrication Technology, 2018, 46( 5): 6-14 [Article] [Google Scholar]
4. HouShuai, BaiMeijuan, HuaFuan, et al. Analysis and Design on Static Characteristics of Large-Scale Air-Cushion Furnace Test Platform[J]. Industrial Furnace, 2018, 40(3): 12-17 [Article] [Google Scholar]
5. MorettiP M. Lateral Deflections of Webs in Air-Flotation Ovens[J]. Journal of Applied Mechanics, 2004, 71(3): 314-320 [Article] [NASA ADS] [CrossRef] [Google Scholar]
6. RamezanpourA, MirzaeeI, FirthD, et al. A Numerical Heat Transfer Study of Slot Jet Impinging on an Inclined Plate[J]. International Journal of Numerical Methods for Heat & Fluid Flow, 2007, 17(7): 661-676 [Article] [CrossRef] [Google Scholar]
7. RamezanpourA, ShirvaniH, MirzaeeI. Heat Transfer Modelling of Slot Jet Impinging on an Inclined Plate[J]. WIT Trans on Engineering Sciences, 2004, 46: 485-494 [Google Scholar]
8. BaydarE, OzmenY. An Experimental Investigation on Flow Structures of Confined and Unconfined Impinging Air Jets[J]. Heat & Mass Transfer, 2006, 42(4): 338-346 [Article] [NASA ADS] [CrossRef] [Google Scholar]
9. Abdel-FattahA. Numerical and Experimental Study of Turbulent Impinging Twin-Jet Flow[J]. Experimental Thermal & Fluid Science, 2007, 31(8): 1061-1072 [CrossRef] [Google Scholar]
10. HouShuai, LiYong, WangZhaodong, et al. Study on Round Nozzle' Floating Force and Heat Transfer Character of Air Cushion Furnace[J]. Industrial Furnace, 2013, 35(1): 1-4 [Article] [Google Scholar]
11. HouShuai, WangChao, WangKun, et al. Study on Heat Transfer Character From Slot Nozzle of Air Cushion Furnace[J]. Light Alloy Fabrication Technology, 2013, 41(3): 45-48 [Article] [Google Scholar]
12. HouS, HuaF, LyuW, et al. Hybrid Modeling of Flotation Height in Air Flotation Oven Based on Selective Bagging Ensemble Method[J]. Mathematical Problems in Engineering, 2013(3): 1-9 [Article] [Google Scholar]

All Figures

 图1双缝隙喷嘴射流冲击原理图 In the text
 图2压力系数模拟与实验结果对比图 In the text
 图3H/D=1时压力系数曲线 In the text
 图4当Re=48 194时压力系数曲线 In the text
 图5Re为48 194时的Cp曲线 In the text
 图6当Re=48 194时不同情况的压力系数曲线 In the text

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.