A Study of the Boundary Layer Flow Field on Continuous Moving Surface in Power Law Fluids by PIV Measurement

摘要：

This paper presents dimensionless analysis and experimental investigation for the boundary layer flow in power law fluids on a continuous moving surface. The velocity field is measured by Particle Image Velocimetry Measurement. The influence of wall velocity ratio parameter on boundary layer flow field is observed in the experiment. Dimensionless velocity distribution and sheafing stress distribution are obtained by post-processing experimental results. The distribution of dimensionless velocity and the distribution of dimensionless shearing stress are analyzed further. It is indicated that dimensionless velocity increases with velocity ratio parameter and similarity variable, and that dimensionless sheafing stress decreases with velocity ratio parameter and similarity variable. At last, the flow characteristics are analyzed and discussed further in detail.

关键词： Boundary layer Power law fluid PIV Ezperiment Dimensionless transformation

作者: Hao Zhang Xinxin Zhang Liancun Zheng Yuancheng Wang

作者单位: School of Thermal Engineering,Shandong Jianzhu University,Jinan,China School of Mechanical Engineering,University of Science and Technology Beijing,Beijing,China School of Applied Science,University of Science and Technology Beijing,Beijing,China

会议类型: 国际会议

会议名称: The 6th International Symposium on Heating,Ventilating and Air Conditioning(第六届国际暖通空调学术会议)

会议地点: 南京

会议语种:英文

页码: 2056-2060

在线出版日期: 2009-11-06（万方平台首次上网日期，不代表论文的发表时间）