摘要
通过对湍流微分方程采用有限容积积分法进行离散化处理,对离散后的代数方程采用SIMPLEST算法实施计算求解,利用PHOENICS软件数值模拟了V形沟槽尖峰对湍流边界层特性的影响。模拟结果认为,沟槽的尺寸大小可能不是影响沟槽表面阻力的主要因素,而真正影响沟槽表面阻力的因素是无量纲化之后的槽间距s+,在相同的流动条件下,沟槽处的速度减小,壁面剪切力也随之减小。
By discretizing the turbulent differential equation with finite volumetric integral method, the discretized algebraic equation is calculated by means of SIMPLEST algorithm, and the influence of V shape groove peak on turbulent boundary feature is simulated with the PHOENICS software. Thesimulation results show that the groove size may not be the main factor for affecting the surface resistance of the groove, but the dimensionless groove clearance s+. Under the same flowing condition, the wall face shear force decreases with the decrease of speed at the groove.
出处
《石油机械》
北大核心
2008年第5期15-18,共4页
China Petroleum Machinery
基金
江苏省科技厅资助项目(BS2005020)
江苏省油气储运技术重点实验室资助项目(cy0601)
关键词
长输管道
PHOENICS
数值模拟
沟槽减阻
湍流边界层
尖峰角度
long-distance pipeline, PHOENICS, numerical simulation, groove resistance reduction, turbulent boundary layer, peak angle