Monte Carlo Coalescence-Dispersion Simulation of Mixing

6 Monte Carlo Coalescence-Dispersion Simulation of Mixing 

Generally, yield of the component R in the reaction sequence A -f B - R R -h B S increases with power dissipation (increased impeller rotation rate). 

Canon et al. (1977) simulated the flow, mixing, and reaction in the Paul and Treybal stirred reactor using a Monte Carlo coalescence and dispersion (C-D) method. In this method elements of the fluid are simulated by points that move according to the flow pattern in the vessel. These points have mass and composition representing some fraction of the fluid in the vessel. The points are caused to mix (coalesce), react, then disperse. The number of points undergoing C-D during each time increment is proportional to a C-D frequency. The local C-D frequency (coalescences/time/site) was found to be related to local turbulence as follows  

The choice of points to undergo C-D is done by a Monte Carlo algorithm in which each of two points for each C-D event is chosen randomly within a flow zone. 

7 Paired-Interaction Closure for Multiple Chemical Reactions 

---