基于几何光学的泡沫滴/水滴光散射计算模型

迟卫, 王吉心, 王涌, 兰国辉, 金良安

迟卫, 王吉心, 王涌, 兰国辉, 金良安. 基于几何光学的泡沫滴/水滴光散射计算模型[J]. 应用光学, 2014, 35(3): 404-408.
引用本文: 迟卫, 王吉心, 王涌, 兰国辉, 金良安. 基于几何光学的泡沫滴/水滴光散射计算模型[J]. 应用光学, 2014, 35(3): 404-408.
shu
CHI Wei, WANG Ji-xin, WANG Yong, LAN Guo-hui, JIN Liang-an. Geometrical optics based light scattering computational model for foam/water drop[J]. Journal of Applied Optics, 2014, 35(3): 404-408.
Citation: CHI Wei, WANG Ji-xin, WANG Yong, LAN Guo-hui, JIN Liang-an. Geometrical optics based light scattering computational model for foam/water drop[J]. Journal of Applied Optics, 2014, 35(3): 404-408.
shu

基于几何光学的泡沫滴/水滴光散射计算模型

  • 海军大连舰艇学院,辽宁 大连116018

详细信息
    通讯作者:

    迟卫 (1962-)，男，辽宁沈阳人，教授，博士生导师，主要从事舰船安全保障与防护技术研究。 Email：dl-tiger@163.com

  • 中图分类号: TN972; U698

Geometrical optics based light scattering computational model for foam/water drop

  • Dalian Naval Academy,Dalian 116018,China

摘要

    摘要
  • 摘要: 为深入研究舰船泡沫水两用幕的光衰减机理，建立了基于几何光学的泡沫滴/水滴光散射强度分布计算模型。利用该模型对液相折射率m2为1.20至1.50范围内、气泡相对半径r为0至0.99的球状泡沫滴和水滴、散射角为1至10内的光散射强度进行了数值计算。结果表明，泡沫滴/水滴对可见光具有强烈的散射作用，内的散射强度与入射光强度之比T随的增大而提高，最高可增加2个数量级；随m2的增大而降低，m2从1.30至1.40变化，T降幅最高达11.6%；随r的增加先下降而后提高，达到最低0和最高80.8%；T最低值对应的最优气泡半径ro随m2的降低和的增大而提高，从0.1最多增至0.4。该结论可为舰船泡沫水两用幕技术的发展提供必要的理论基础。
    Abstract: For the purpose of studying light attenuation principle of warship foam-water dual-purpose curtain, the visible light scattering model was established for calculating the optical scattering intensity distribution based on geometrical optics. Light intensity scattered by spherical foam/water drop restricted by scattering angle from 1 to 10, relative bubble radius r from 0 to 0.99 and liquid refractive index m2 within 1.20 to 1.50 was calculated using the computational model above. Results show that light is scattered strongly by the foam/water drop. The ratio of scattering intensity to incident intensity T increases by at most 2 orders of magnitude along with the increase of from 1to 10. T reduces up to 11.6% along with the increase of m2 from 1.30 to 1.40. T firstly declines and then increases to the extent of 0(minimum) and 80.8% (maximum) with the increase of r. The optimized bubble radius ro, corresponding to the lowest T value, enlarges from 0.1 to 0.4 with the increase of scattering angle and the decrease of liquid refractive index. The research can provide theoretical foundation for the development techniques of warship foam-water dual-purpose curtain.
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  • [1]王吉心, 金良安, 迟卫, 等. 泡沫-水两用幕厚度与光衰减效果的关系[J]. 应用光学, 2013,34(5): 758-763.
    WANG Ji-xin, JIN Liang-an, CHI Wei, et al. Relationship between optical attenuation effect and thickness of foam-water dual-purpose curtain[J]. Journal of Applied Optics, 2013,34(5): 758-763.(in Chinese with an English abstract
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    JIN Liang-an, ZHAN Xi-chen, FU Jian-guo, et al. The avenue of improving effect to interfere IR/MMW guidance by special foam screen[J]. J. Infrared Millim. Wave, 2006, 25(3): 188-191. (in Chinese with an English abstract)
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  • 刊出日期:  2014-05-14

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