用于模拟多分散湍动的计算模型：大涡流模拟和正交矩方法

This work focuses on the development of efficient computational tools for the
simulation of turbulent multiphase polydispersed flows. In terms of methodologies
we focus here on the use of Large Eddy Simulation (LES) and Quadrature-Based
Methods of Moments (QBMM). In terms of applications the work is finalised, in
order to be applied in the future, to particle production processes (precipitation
and crystallisation in particular). An important part of the work concerns the
study of the flow field in a Confined Impinging Jets Reactor (CIJR), frequently
used in particle production processes. The first part is limited to the comparison
and analysis of micro Particle Image Velocimetry (PIV) experiments, carried out
in a previous work, and Direct Numerical Simulation (DNS), carried out in this
thesis. In particular the effects of boundary and operating conditions are studied
and the numerical simulations are used to understand the experimental predictions
and demonstrate the importance of unavoidable fluctuations in the experimental
inlets. 德国LaVision PIV/PLIF粒子成像测速场仪 显微粒子成像测速系统(Micro PIV) 电动层析显微粒子成像测速PIV-Mitas