Chapter 11
Implementation in OZone Table of Contents 1. Introduction.............................................................................. 289 2. Backdraft Combustion Model ................................................... 289 2.1 Model and Sub-Models......................................................... 289 2.2 Basic Assumptions and Principles........................................ 290 2.3 Main Formulation of OZone................................................. 294 2.4. Switch to One-Zone or Two-Zone Models ........................... 296 2.4.1 Zone Model Formulation ................................................ 296 2.4.2 Wall Model Formulation ................................................ 297 2.4.3 Switch Criteria ............................................................... 298 2.5 Mathematical Model ............................................................ 299 2.5.1 Basic Parameters and Input Data .................................. 299 2.5.2 Backdraft Combustion Model......................................... 299 2.5.3 Mass Balance in the Compartment ................................ 302 2.5.3.1 Mass Balance Without Considering the Gas Species. 302 2.5.3.2 Mass Balance Considering the Gas Species............... 303 2.5.3.3 Mass Fraction of Species .......................................... 303 2.6 Gravity Current Speed and Ratio of Mixing ........................ 304