AN ANALYTICAL INVESTIGATION OF FLUID CARGO VAPOR DISPERSION
Means for analytical prediction of the dispersion field of toxic or combustible vapor vented from a tanker are critically evaluated. Particular emphasis is given the conservative delineation of the flammable surface separating spatial domains outside of which dangerous combustion is unlikely and inside of which it is (and an analogous toxic surface) in the light of normal available data and the uncertainties therein. Approximate analyses covering buoyancy and jet momentum effects are included. The problem of assignment of appropriate flammability limits in a turbulent and inhomogeneous mixture is reviewed. Experimental and analytical means of dealing with flow past obstacles and other geometrically complex phenomena are evaluated. The effects of helicopter downwash on vapor dispersion is also briefly analyzed. Finally, the procedure for analysis of vapor dispersion within tanks is outlined.
University of Washington, SeattleDepartment of Mechanical Engineering
Seattle, WA USA 98105
United States Coast Guard2100 Second Street, SW
Washington, DC USA 20593
- Chou, J H
- Corlett, R C
- Publication Date: 1974-11
- Pagination: 77 p.
- TRT Terms: Air pollution; Combustion; Downwash; Fuel tanks; Helicopters; Mathematical models; Tankers; Toxicity; Vapors; Vents
- Old TRIS Terms: Dispersion
- Subject Areas: Geotechnology; Highways; Materials; Safety and Human Factors;
- Accession Number: 00090158
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: Final Rpt.
- Contract Numbers: DOT-CG-34075-A
- Files: NTIS, TRIS
- Created Date: Apr 22 1975 12:00AM