(1. 中南大學(xué) 材料科學(xué)與工程學(xué)院，長(zhǎng)沙 410083；
2. 中南大學(xué) 能源與動(dòng)力工程學(xué)院， 長(zhǎng)沙 410083)
摘 要: 影響合金液霧燃燒工藝過(guò)程中氧化燃燒反應(yīng)速率的關(guān)鍵因素是金屬或者合金液霧滴徑大小； 液霧滴徑越小， 氧化燃燒反應(yīng)速率越大，也越有利于金屬或者合金液霧的完全氧化。 燃燒室流場(chǎng)可分為內(nèi)回流區(qū)、 旋轉(zhuǎn)射流區(qū)和外回流區(qū)3大場(chǎng)區(qū)。 液霧燃燒系統(tǒng)的溫度場(chǎng)為一以燃燒 “核心”為球心的等溫球面， 球面半徑越大， 溫度越低， 而至封圍其霧化燃燒室的周壁處溫度最低。
關(guān)鍵字: 液霧燃燒； 反應(yīng)速率； 溫度場(chǎng)
（1. School of Materials Science & Engineering, Central South University, Changsha 410083, China;
2. School of Energy & Power Engineering, Central South University,
Changsha 410083, China）
Abstract: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 emperature 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.
Key words: atomizing-combustion; reaction velocity; temperature field
