期刊文献+

气体压强对超音速气雾化中气体流场的影响 被引量:12

Effect of atomization gas pressure variation on the gas flow field in supersonic gas atomization
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摘要 气体雾化技术可以制备一系列高性能超细球形金属粉末.利用计算流体动力学软件Fluent模拟了雾化气体压强(P0)对超音速气雾化喷嘴气体流场的影响,以及对流场中心线上压强、速度等变化的影响规律.研究结果表明:随着P0的增大,流场内气流达到的最大速度逐渐增加;当雾化气体压强较小时,抽吸压强(ΔP)随雾化气体压强增大而减小;而当雾化气体压强达到某一临界值时,ΔP才随雾化气体压强增大而增大;抽吸压强的变化与雾化室中心线上滞止压强和马赫碟位置的变化相一致,滞点位置对抽吸压强的作用不大;导液管顶端径向分布的静压强存在一个压强梯度,并且随着雾化气体压强的增加而增大.
出处 《中国科学(E辑)》 CSCD 北大核心 2009年第9期1582-1588,共7页 Science in China(Series E)
基金 科技部科研院所技术开发研究专项基金(批准号:NCSTE-2007-JKZX-054)资助项目
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参考文献17

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二级参考文献44

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