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多孔透气材料应用于船模微气泡减阻性能实验分析

张天行 朱汉华

张天行, 朱汉华. 多孔透气材料应用于船模微气泡减阻性能实验分析[J]. 机械科学与技术, 2019, 38(5): 783-788. doi: 10.13433/j.cnki.1003-8728.20180316
引用本文: 张天行, 朱汉华. 多孔透气材料应用于船模微气泡减阻性能实验分析[J]. 机械科学与技术, 2019, 38(5): 783-788. doi: 10.13433/j.cnki.1003-8728.20180316
Zhang Tianxing, Zhu Hanhua. Experimental Study on Microbubble Drag Reduction Performance of Porous Gas Permeable Material Applied to Ship Model[J]. Mechanical Science and Technology for Aerospace Engineering, 2019, 38(5): 783-788. doi: 10.13433/j.cnki.1003-8728.20180316
Citation: Zhang Tianxing, Zhu Hanhua. Experimental Study on Microbubble Drag Reduction Performance of Porous Gas Permeable Material Applied to Ship Model[J]. Mechanical Science and Technology for Aerospace Engineering, 2019, 38(5): 783-788. doi: 10.13433/j.cnki.1003-8728.20180316

多孔透气材料应用于船模微气泡减阻性能实验分析

doi: 10.13433/j.cnki.1003-8728.20180316
基金项目: 

国家创新创业训练计划基金项目 20171049705006

详细信息
    作者简介:

    张天行(1998-), 本科生, 研究方向为船舶工程、流体机械, tx98413@163.com

  • 中图分类号: U661.3

Experimental Study on Microbubble Drag Reduction Performance of Porous Gas Permeable Material Applied to Ship Model

  • 摘要: 分别将挠性氧化铝多孔透气材料安装在船模底部、侧面、球鼻艏附近进行微气泡减阻性能试验,分析应用于船模上的减阻效果。结果表明:船底喷气时,最高达11.6%的减阻效果;喷气位置位于球鼻艏附近时的减阻效果较差,只有当喷气流量为10 L/min时,船模阻力在部分试验点小于未喷气时的阻力;喷气位置位于船侧时,由于流场边界层密度改变较大,因此,减阻效果随着船模速度与喷气流量变化波动较大。当船模速度为1.80 m/s,且船底和船侧空气流量为20 L/min、球鼻艏空气流量为10 L/min时,采用多孔透气材料船底+船侧+球鼻艏组合式喷气方式的微气泡减阻效果可达13.9%,减阻效果明显,验证了多孔透气材料应用于船模微气泡减阻的优良性。
  • 图  1  铺设多孔透气材料的船模

    图  2  铺设透气材前后船模阻力变化

    图  3  船模底部喷气时的减阻效果

    图  4  船模底部微气泡分布图

    图  5  减阻效果随无因次参数Cv的变化趋势

    图  6  球鼻艏喷气减阻实验结果

    图  7  微气泡分布图

    图  8  船侧喷气减阻效果

    图  9  不同喷气组合方式下的船模减阻效果

    表  1  实船与船模基本尺寸

    参数 实船 船模
    船长/m 164.900 6.246
    载重水线长/m 161.568 6.120
    船宽/m 27.900 1.057
    浸水面积/m2 5 795 8.314
    螺旋桨直径/m 8.500 0.322
    下载: 导出CSV
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出版历程
  • 收稿日期:  2018-10-09
  • 刊出日期:  2019-05-05

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