层流管流中不同入口类型下柴油机微粒的热泳沉降
Keywords: 柴油机,微粒,层流管流,入口,热泳沉降
Abstract:
采用临界轨道半径思想,对层流管流中不同入口类型下柴油机微粒的热泳沉降特性进行了研究.给出了3种不同入口类型条件下层流管流入口段流场以及微粒热泳沉降的求解方法;分析了对柴油机微粒热泳沉降具有重要影响的层流管流流场的结构特征;在此基础上,对不同入口类型层流管流入口段中柴油机微粒的热泳沉降特性及其影响因素进行了分析.通过研究,获得了柴油机微粒在不同入口类型层流管流入口段中的热泳沉降规律.
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