This chapter presents two common indoor environmentalmodeling methods to calculate airflows and contaminant concentrations inbuildings: computational fluid dynamics (CFD) and multi-zone network airflowmodeling. Discussion of each method includes its mathematical background, practicalmodeling advice, model validation, and application examples.

COMPUTATIONAL FLUIDDYNAMICS
Meshing for ComputationalFluid Dynamics
Boundary Conditions forComputational Fluid Dynamics
CFD Modeling Approaches
Verification, Validation,and Reporting Results
MULTIZONE NETWORK AIRFLOWAND CONTAMINANT TRANSPORT MODELING
Multizone Airflow Modeling
Contaminant TransportModeling
Multizone Modeling Approaches
Verification and Validation
Symbols

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