Behavior of LNG vapor clouds: wind-tunnel tests on the modeling of heavy plume dispersion. Final report Jul 79-Sep 81

Technical Report · Mon Mar 01 00:00:00 EST 1982

OSTI ID:6602635

Neff, D E; Meroney, R N

Visual and concentration measurements were made for a large number of continuous ground-level releases of heavy gases into a wind-tunnel boundary layer. These different plumes were not affected by any topographic or building wake influences. The experiments provided a broad coverage of the variable range of source gas specific gravity, source gas flow rate, and approach flow wind speed. From an investigation of the physical similarity between plumes, the permissible modeling distortion in source density, volume flux ratio, and length scale ratio was quantified. The concentration scaling theory which was previously limited to far-field behavior was extended to cover the entire range of plume concentrations. Generalized behavior models were constructed from the laboratory tests. These models were scaled up to atmospheric conditions. The range of atmospheric scenarios to which these laboratory data are applicable is summarized. Measurements on the behavior of transient dense plumes were also obtained.

• Research Organization: Colorado State Univ., Fort Collins (USA). Dept. of Civil Engineering
• OSTI ID: 6602635
• Report Number(s): PB-83-109868
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
54 ENVIRONMENTAL SCIENCES
LIQUEFIED NATURAL GAS
DIFFUSION
GAS SPILLS
PLUMES
AIR POLLUTION
BOUNDARY LAYERS
DISPERSIONS
TURBULENCE
VAPORS
WIND TUNNELS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
LAYERS
LIQUEFIED GASES
NATURAL GAS
POLLUTION
TUNNELS
UNDERGROUND FACILITIES
030800* - Natural Gas- Environmental Aspects
030500 - Natural Gas- Health & Safety
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)