抄録
New Lagrangian stochastic model for particles in turbulent flows has been developed. Attempt to incorporate the effect of instantaneous flow structure on particle motion directly has been made for the first time. To do this, stochastic models for velocity gradient and linear stochastic estimation with velocity and velocity gradient have been introduced to the new model. Currently the model has been made so far. Application of the new model to bubble dispersion is also suggested.
