Three-dimensional model for simulating atmospheric dispersion of heavy-gases over complex terrain

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To help understand heavy gas releases and simulate the resultant dispersion, we have developed a three-dimensional finite element model called FEM3 and an improved version names FEM3A for solving the time dependent conservation equations based on generalized anelastic approximation. Recent enhancements to the model to include the treatment of dispersion scenarios involving density variations much larger than the liquefied natural gas range and an advanced turbulence submodel based on the buoyancy-extended transport equations. This paper presents the main features of the present model FEM3C and numerical results from the simulations of a field-scale LNG spill experiment.

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8 p.

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Chan, S.T. September 1, 1997.

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Description

To help understand heavy gas releases and simulate the resultant dispersion, we have developed a three-dimensional finite element model called FEM3 and an improved version names FEM3A for solving the time dependent conservation equations based on generalized anelastic approximation. Recent enhancements to the model to include the treatment of dispersion scenarios involving density variations much larger than the liquefied natural gas range and an advanced turbulence submodel based on the buoyancy-extended transport equations. This paper presents the main features of the present model FEM3C and numerical results from the simulations of a field-scale LNG spill experiment.

Physical Description

8 p.

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INIS; OSTI as DE98053184

Other: FDE: PDF; PL:

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  • 78. American Meteorological Society annual meeting, Phoenix, AZ (United States), 11-16 Jan 1998

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  • Other: DE98053184
  • Report No.: UCRL-JC--127475
  • Report No.: CONF-980121--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 646463
  • Archival Resource Key: ark:/67531/metadc702835

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Office of Scientific & Technical Information Technical Reports

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  • September 1, 1997

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 6, 2017, 6:10 p.m.

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Chan, S.T. Three-dimensional model for simulating atmospheric dispersion of heavy-gases over complex terrain, article, September 1, 1997; California. (digital.library.unt.edu/ark:/67531/metadc702835/: accessed October 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.