Inverse Energy Cascade Structure of Turbulence in a Bubbly Flow. PIV Measurement and Results.

Effect of bubble diameter on modification of turbulence in an upward pipe flow

“…Also they reported the correlation between the local enstrophy distribution and the local shear flow structure at inter-particle spacing distorted by the particles (Sato and Hishida, 2000). For the gas-liquid two-phase flow, Murai et al (2000) introduced the PIV measurement for the bubbly channel flow. They experimentally verified the inverse turbulence energy cascade.…”

Bubble Column Reactors

“…(For the 18 by 18 array the computation was stopped while the eddies were still growing, and not reached the size of the computational domain). Later studies on the the inverse energy cascade structure of turbulence in bubbly flows and on turbulence structures induced by bubble buoyancy by [115,116] confirmed the findings of [40]. The given k − turbulence model formulation has been used to determine the turbulence of the continuous phase in two-phase bubbly flow by several investigators on bubble columns (e.g., [64,136]) and on stirred tank reactors (e.g., [43]).…”

Measuring Techniques in Gas—Liquid and Gas—Liquid—Solid Reactors

“…In recent years, a number of authors have used PIV in gasliquid ow to determine either the liquid velocity eld or the bubble velocity and size, or both. Reviews on this subject may be found in Murai et al (2000); Chaouki et al (1997) or Reese, Mudde, Lee, and Fan (1996). The main problem is to identify the particles between the dierent frames.…”