Accession Number : ADA305711

Title :   Development of Hybrid Model for Assessing Concentrations of Toxic Effluent at Air Force Installations. Phase 1.

Descriptive Note : Final rept. May 90-Feb 91,

Corporate Author : CERMAK PETERKA PETERSEN INC FORT COLLINS CO

Personal Author(s) : Petersen, R. L. ; Hosoya, Noriaki

PDF Url : ADA305711

Report Date : NOV 1995

Pagination or Media Count : 119

Abstract : The main purpose of this evaluation was to develop a hybrid modeling approach to toxic vapor diffusion modeling in the vicinity of buildings or structures which influence plume behavior. The hybrid approach combines the use of physical (wind-tunnel) and computer modeling in order to improve the site-specific performance of gaussian puff and box-type hazard response models by accounting for pollutant trapping, redirection, and dispersion enhancement caused by the presence of structures. The documented project included reviewing the capability of wind-tunnel modeling to simulate nearfield dispersion, conducting wind-tunnel tests for a sample Air Force base environment, assessing limitations of the current AFTOX and SLAB models for treating dispersion in the vicinity of obstacles, development of a sample hybrid model, and suggesting a methodology for generalized application of hybrid modeling at any Air Force installation. (AN)

Descriptors :   *AIR FORCE FACILITIES, *AIR QUALITY, DATA BASES, MATHEMATICAL MODELS, COMPUTERIZED SIMULATION, SOFTWARE ENGINEERING, SCENARIOS, OPTIMIZATION, CRISIS MANAGEMENT, EMERGENCIES, RISK, TOXIC HAZARDS, AIR POLLUTION, VAPORS, TOXICITY, AIR FLOW, VENTILATION, GAS DYNAMICS, FEASIBILITY STUDIES, WIND TUNNEL TESTS, CHEMICAL WARFARE, WIND DIRECTION, WIND VELOCITY, EXPERT SYSTEMS, DIFFUSION, PLUMES, EFFLUENTS, JET ENGINE FUELS, NEAR FIELD, FUEL CONTAMINATION, CONCENTRATION(CHEMISTRY), AIR FORCE OPERATIONS, GAS SURFACE INTERACTIONS, HUMIDITY, HAZARDOUS MATERIALS, DISPERSIONS, ACCIDENTS, DENSE GASES.

Subject Categories : Logistics, Military Facilities and Supplies
      Air Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE