摘要
基于计算流体力学软件Fluent,对背风半路堑的风速场进行了模拟研究,定量分析了边坡坡度和路堑深度对风速场的影响,给出了背风半路堑公路风吹雪灾害的流场分布规律。结果表明：1背风半路堑路面上方的风速整体上比来流风速低得多,一般只有来流风速的10%~45%,易产生较为严重的风吹雪灾害;2边坡坡度和路堑深度越大,路面上方涡旋减速区越大,风吹雪灾害越严重。
Based on computational fluid dynamics softwareFluent, wind field ofleeward part - cutting was simulated and influenceof grade of side slope and road cutting depth on windfield was analyzed quantitatively. The flow field distribution ofleeward part - cutting snowdrift was showed. Research results indicatethat ： （1）Wind on pavement of leeward part - cutting wasmuch lower than inlet velocity and generally was 10 % to 4 5 % ofinlet velocity, which was prone to serious drifting snow; （2）Thelarger grade of side slope and road cutting depth were, thelargervortex deceleration zone and the more seriousdrifting snow were.
出处
《四川建材》
2016年第3期133-134,共2页
Sichuan Building Materials
关键词
背风半路堑
FLUENT
数值模拟
流场分布规律
leeward part - cutting
fluent
numericalsimulation
distribution of flow field
