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Numerical Simulation of Physical Process of Gas Mixing in the Detonation Tube
Author(s): 
Pages: 100-103
Year: Issue:  2
Journal: TRANSACTIONS OF BEIJING INSTITUTE OF TECHNOLOGY

Keyword:  爆震室入口直径入口速度均匀混合;
Abstract: 气云爆震与燃料/空气的混合程度密切相关. 为研究填充后爆震室内燃料和氧化剂的混合情况,采用大型计算流体力学仿真软件对爆震室内燃料和空气的填充混合过程进行数值模拟,并着重研究了入口直径、入口速度以及填充的燃料与氧化剂的质量比等参数对爆震室内燃料/空气混合均匀所需距离的影响. 计算结果表明,爆震室内燃料/空气混合均匀所需的距离与燃料和空气的入口速度的比值有关,随着燃料入口速度与空气入口速度的比值的增大(减小或不变),乙炔和空气混合均匀所需的距离相应增大(减小或不变).
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