CAJ | 학술논문

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τ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，τ内的散射强度与入射光强度之比 Tτ随τ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，Tτ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％；Tτ最低值对应的最优气泡半径ro 随 m2的降低和τ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。
위심입연구함선포말-수량용막적광쇠감궤리，건립료기우궤하광학적포말적/수적광산사강도분포계산모형。이용해모형대액상절사솔m2위1．20지1．50범위내、기포상대반경 r위0지0．99적구상포말적화수적、산사각τ위1°지10°내적광산사강도진행료수치계산。결과표명，포말적/수적대가견광구유강렬적산사작용，τ내적산사강도여입사광강도지비 Tτ수τ적증대이제고，최고가증가2개수량급；수m2적증대이강저，m2종1．30지1．40변화，Tτ강폭최고체11．6％；수 r적증가선하강이후제고，체도최저0화최고80．8％；Tτ최저치대응적최우기포반경ro 수 m2적강저화τ적증대이제고，종0．1최다증지0．4。해결론가위함선포말-수량용막기술적발전제공필요적이론기출。
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 τfrom 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 Tτincreases by at most 2 orders of magnitude along with the increase of τfrom 1°to 10° . Tτreduces up to 11 .6% along with the increase of m2 from 1 .30 to 1 .40 .Tτfirstly declines and then increases to the extent of 0(mini-mum) and 80 .8% (maximum) with the increase of r .The optimized bubble radius ro ,corre-sponding to the lowest Tτvalue ,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 .