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合金液雾燃烧过程中的反应速率与温度场 被引量:1

Reaction velocity and temperature field in atomizing-combustion process of alloys
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摘要 影响合金液雾燃烧工艺过程中氧化燃烧反应速率的关键因素是金属或者合金液雾滴径大小 ;液雾滴径越小 ,氧化燃烧反应速率越大 ,也越有利于金属或者合金液雾的完全氧化。燃烧室流场可分为内回流区、旋转射流区和外回流区 3大场区。液雾燃烧系统的温度场为一以燃烧“核心”为球心的等温球面 ,球面半径越大 ,温度越低 ,而至封围其雾化燃烧室的周壁处温度最低。 The key factor affecting the reaction velocity in the atomizing-combustion process of the alloys is the size of the drops to be atomized: the smaller the size of the drops is, the faster the reaction velocity is. Not only the smaller size of the drops to be atomized can quicken the reaction velocity of the atomizing-combustion process, but also will be favorable for complete burning of the alloy-drops. The fluid field in the atomizing-combustion chamber can be carved up as three areas: inside circumfluence area, circumvolve shooting fluid area and outside circumfluence area. The temperature field of the atomizing-combustion system is the spherical surface, the center of the sphere is the burning core. The larger the radius of the sphericity is, the lower the temperature of the spherical surfaces is. The temperature of these places near the wall of the chamber is the lowest.
出处 《中国有色金属学报》 EI CAS CSCD 北大核心 2002年第6期1194-1198,共5页 The Chinese Journal of Nonferrous Metals
基金 国家自然科学基金资助项目 ( 5 9972 0 44)
关键词 液雾燃烧 反应速率 温度场 atomizing-combustion reaction velocity temperature field
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