| 单液滴在多孔介质内碰壁过程的数值模拟 |
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| 引用本文： | 刘红,解茂昭,刘宏升,刘戈,王淑春. 单液滴在多孔介质内碰壁过程的数值模拟[J]. 燃烧科学与技术, 2011, 17(4): 287-294 |
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| 作者姓名： | 刘红 解茂昭 刘宏升 刘戈 王淑春 |
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| 作者单位： | 大连理工大学海洋能源利用与节能教育部重点实验室,大连,116024 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 应用数值模拟方法研究不同尺寸单一液滴碰撞常温多孔介质内壁面时的运动与变形行为.界面跟踪采用基于VOF的体跟踪模型,简化的多孔介质结构应用孔隙网络模型.主要考查了初始液滴碰撞动能、表面能及液滴与多孔介质内壁面相对尺寸大小对液滴碰壁现象的影响,分析了液滴在多孔内壁面上形成液膜、液膜延展碰撞喉道壁面及飞溅破碎等过程的动力学特...
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| 关 键 词： | 液滴碰壁 液滴飞溅 液膜 多孔介质 表面张力 |
Modeling of Single Droplet Impingement onto Cell Wall Inside Porous Medium |
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| LIU Hong,XIE Mao-zhao,LIUHong-sheng,LIU Ge,WANG Shu-chun. Modeling of Single Droplet Impingement onto Cell Wall Inside Porous Medium[J]. Journal of Combustion Science and Technology, 2011, 17(4): 287-294 |
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| Authors: | LIU Hong XIE Mao-zhao LIUHong-sheng LIU Ge WANG Shu-chun |
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| Affiliation: | LIU Hong,XIE Mao-zhao,LIU Hong-sheng,LIU Ge,WANG Shu-chun(Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education,Dalian University of Technology,Dalian 116024,China) |
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| Abstract: | The paper presents the results of a numerical study on the impingement process of a droplet onto a cell wall inside porous medium.The numerical method is based on the finite volume solution of the Navier-Stokes equations coupled with the volume of fluid method(VOF).The porous medium structure was described using a pore-network model.The effects of initial impact energy,surface energy and the ratio of surface size to initial droplet diameter on droplet impingement were studied.The complex physical phenomena ... |
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| Keywords: | droplet impact droplet splash film porous medium surface tension |
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