An experimental study of turbulent relative dispersion models

作者:Ouellette NT*; Xu HT; Bourgoin M; Bodenschatz E
来源:New Journal of Physics, 2006, 8: 109.
DOI:10.1088/1367-2630/8/6/109

摘要

We report measurements of the spreading rate of pairs of tracer particles in an intensely turbulent laboratory water flow. We compare our measurements of this turbulent relative dispersion with the longstanding work of Richardson and Batchelor, and find excellent agreement with Batchelor's predictions. The distance neighbour function, the probability density function of the relative dispersion, is measured and compared with existing models. We also investigate the recently proposed exit time analysis of relative dispersion.

  • 出版日期2006-6-23