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作者单位:Minh Tuan Nguyen (1) Sang-Wook Lee (2)
1. Department of Mechanical Engineering, The Graduate School, University of Ulsan, Ulsan, 44610, Korea 2. School of Mechanical Engineering, University of Ulsan, Ulsan, 44610, Korea
刊物类别:Engineering
刊物主题:Mechanical Engineering Structural Mechanics Control Engineering Industrial and Production Engineering
出版者:The Korean Society of Mechanical Engineers
ISSN:1976-3824
文摘
Numerical simulations on pulsatile flow within sinusoidally wavy shaped vessels were conducted for mean Reynolds number of 350, which is in the range of physiological flow rates. We considered the constant pitch of six tube diameters 6D and relatively small amplitudes from A = 0.1D to 0.5D for sinusoidal vessel geometry and investigated the secondary velocity profiles and particle mixing characteristics. The results showed that relatively small amplitude of wavy vessel geometry has significant influence on the nature of flow patterns and particle mixing characteristics. This implies that characterizing accurate geometry is essential for accurate prediction of in vivo hemodynamics and may motivate further study on any possibility of reflection of secondary flow on vascular remodeling and pathophysiology.