摘要
针对海底沉管隧道"高度有限,宽度有余"的矩形断面结构特点,运用计算流体力学软件建立沉管隧道射流纵向通风方式的三维数值仿真模型,研究海底沉管隧道射流纵向通风方式的通风效果,通过正交试验分析沉管隧道内射流风机安装高度、安装角度、轴向净间距等安装因素对隧道通风效果的影响规律与影响程度,优化沉管隧道内射流风机布置形式,提高通风效果。分析结果表明:多种因素对隧道内风速影响的主次顺序为:射流风机安装高度、安装角度、轴向净间距;考虑海底沉管隧道高度有限的特点,可通过增加射流风机组安装角度来有效提高隧道内通风效果。
According to the immersed tunnel structure features of the vertical space limited and horizontal space spacious,establishing the three- dimensional numerical simulation model of jet fans longitude ventilation in immersed tunnel,studying on ventilation effect of jet fans longitude ventilation in immersed tunnel,analyzing influence of jet fans installation height,angle and axial spacing to velocity field in immersed tunnel,optimizing the jet fans installation in immersed tunnel. The results show that:tprimary and secondary factors affecting the jet fans ventilation effect in immersed tunnel are installation height,angle and axial spacing. So consider the immersed tunnel structure features of the vertical space limited,improving the ventilation effect by increasing the installation angle of jet fans combination in immersed tunnel.
出处
《流体机械》
CSCD
北大核心
2016年第2期43-47,共5页
Fluid Machinery
基金
中央高校基本科研业务费专项资金资助项目(310821151018)
中央高校基本科研业务费专项资金资助项目(2013G1502029)
陕西教育厅科学研究计划项目(2013JK0958)
关键词
沉管隧道
射流纵向通风
正交试验
安装角度
immersed tunnel
jet fans longitudinal ventilation
orthogonal test
installation angle
