改进三维CE/SE算法在气相爆轰中的应用

本文推导了一种改进三维CE/SE格式,用二步模型对氢氧(2H2+O2)气相爆轰进行了数值模拟,得到了氢氧爆轰的三维数值胞格结构。数值结果表明:1.本文的CE/SE格式能很好的适用于有化学反应存在的流动;2.氢氧爆轰具有复杂的三维结构。

A study of the influence of initial liquid volume on the capillary flow in an interior corner under microgravity

In this work the influence of initial liquid volume on the capillary flow in an interior corner is studied systematically by microgravity experiments using the drop tower, under three different conditions: the Concus-Finn condition is satisfied,close to and dissatisfied. The capillary flow is studied by discussing the movement of tip of the meniscus in the corner. Experimental results show that with the increase of initial liquid volume the tip location increases for a given microgravity time, the achievable maximum tip velocity increases and the flow reaches its maximum tip velocity earlier However, the results for the three different conditions show some difference. (C) 2010 Elsevier Ltd All rights reserved