A Model for Flow and Dispersion Around Buildings and Its Validation Using Laboratory Measurements
Numerical modeling of airflow and pollutant dispersion around buildings is a challenging task due to the geometrical variations of buildings and the extremely complex flow created by such surface-mounted obstacles. The airflow around buildings inevitably involves impingement and separation regions, a multiple vortex system with building wakes, and jetting effects in street canyons. The interference from adjacent buildings further complicates the flow and dispersion patterns. Thus accurate simulations of such flow and pollutant transport require not only appropriate physics submodels but also accurate numerics and significant computing resources. We have developed an efficient, high resolution CFD model for such purposes, with a primary goal to support incident response and preparedness in emergency response planning, vulnerability analysis, and the development of mitigation techniques.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE Office of Defense Programs (DP) (US)
- DOE Contract Number:
- W-7405-Eng-48
- OSTI ID:
- 792814
- Report Number(s):
- UCRL-JC-137458; TRN: US200302%%510
- Resource Relation:
- Conference: American Meteorological Society 3rd Symposium on the Urban Environment, Davis, CA (US), 08/14/2000--08/18/2000; Other Information: PBD: 17 May 2000
- Country of Publication:
- United States
- Language:
- English
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