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Title: Preliminary testing of turbulence and radionuclide transport modeling in deep ocean environment

Abstract

Pacific Northwest Laboratory (PNL) performed a study for the US Environmental Protection Agency's Office of Radiation Programs to (1) identify candidate models for regional modeling of low-level waste ocean disposal sites in the mid-Atlantic ocean; (2) evaluate mathematical representation of the model's eddy viscosity/dispersion coefficients; and (3) evaluate the adequacy of the k-{epsilon} turbulence model and the feasibility of one of the candidate models, TEMPEST{copyright}/FLESCOT{copyright}, to deep-ocean applications on a preliminary basis. PNL identified the TEMPEST{copyright}/FLESCOT{copyright}, FLOWER, Blumberg's, and RMA 10 models as appropriate candidates for the regional radionuclide modeling. Among these models, TEMPEST/FLESCOT is currently the only model that solves distributions of flow, turbulence (with the k-{epsilon} model), salinity, water temperature, sediment, dissolved contaminants, and sediment-sorbed contaminants. Solving the Navier-Stokes equations using higher order correlations is not practical for regional modeling because of the prohibitive computational requirements; therefore, the turbulence modeling is a more practical approach. PNL applied the three-dimensional code, TEMPEST{copyright}/FLESCOT{copyright} with the k-{epsilon} model, to a very simple, hypothetical, two-dimensional, deep-ocean case, producing at least qualitatively appropriate results. However, more detailed testing should be performed for the further testing of the code. 46 refs., 39 figs., 6 tabs.

Authors:
; ;  [1];  [2];  [3]
  1. (Pacific Northwest Lab., Richland, WA (USA)
  2. (USA)
  3. (USA))
Publication Date:
Research Org.:
Pacific Northwest Lab., Richland, WA (USA)
Sponsoring Org.:
USEPA
OSTI Identifier:
5624007
Report Number(s):
PNL-6853
ON: DE90000921
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; LOW-LEVEL RADIOACTIVE WASTES; RADIOACTIVE WASTE DISPOSAL; MARINE DISPOSAL; REGIONAL ANALYSIS; F CODES; RADIONUCLIDE MIGRATION; T CODES; TESTING; TURBULENCE; WATER CURRENTS; COMPUTER CODES; CURRENTS; ENVIRONMENTAL TRANSPORT; MANAGEMENT; MASS TRANSFER; MATERIALS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; WASTE DISPOSAL; WASTE MANAGEMENT; WASTES; 052002* - Nuclear Fuels- Waste Disposal & Storage; 053000 - Nuclear Fuels- Environmental Aspects

Citation Formats

Onishi, Y., Dummuller, D.C., Trent, D.S., Washington State Univ., Pullman, WA, and Pacific Northwest Lab., Richland, WA. Preliminary testing of turbulence and radionuclide transport modeling in deep ocean environment. United States: N. p., 1989. Web.
Onishi, Y., Dummuller, D.C., Trent, D.S., Washington State Univ., Pullman, WA, & Pacific Northwest Lab., Richland, WA. Preliminary testing of turbulence and radionuclide transport modeling in deep ocean environment. United States.
Onishi, Y., Dummuller, D.C., Trent, D.S., Washington State Univ., Pullman, WA, and Pacific Northwest Lab., Richland, WA. Wed . "Preliminary testing of turbulence and radionuclide transport modeling in deep ocean environment". United States.
@article{osti_5624007,
title = {Preliminary testing of turbulence and radionuclide transport modeling in deep ocean environment},
author = {Onishi, Y. and Dummuller, D.C. and Trent, D.S. and Washington State Univ., Pullman, WA and Pacific Northwest Lab., Richland, WA},
abstractNote = {Pacific Northwest Laboratory (PNL) performed a study for the US Environmental Protection Agency's Office of Radiation Programs to (1) identify candidate models for regional modeling of low-level waste ocean disposal sites in the mid-Atlantic ocean; (2) evaluate mathematical representation of the model's eddy viscosity/dispersion coefficients; and (3) evaluate the adequacy of the k-{epsilon} turbulence model and the feasibility of one of the candidate models, TEMPEST{copyright}/FLESCOT{copyright}, to deep-ocean applications on a preliminary basis. PNL identified the TEMPEST{copyright}/FLESCOT{copyright}, FLOWER, Blumberg's, and RMA 10 models as appropriate candidates for the regional radionuclide modeling. Among these models, TEMPEST/FLESCOT is currently the only model that solves distributions of flow, turbulence (with the k-{epsilon} model), salinity, water temperature, sediment, dissolved contaminants, and sediment-sorbed contaminants. Solving the Navier-Stokes equations using higher order correlations is not practical for regional modeling because of the prohibitive computational requirements; therefore, the turbulence modeling is a more practical approach. PNL applied the three-dimensional code, TEMPEST{copyright}/FLESCOT{copyright} with the k-{epsilon} model, to a very simple, hypothetical, two-dimensional, deep-ocean case, producing at least qualitatively appropriate results. However, more detailed testing should be performed for the further testing of the code. 46 refs., 39 figs., 6 tabs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 1989},
month = {Wed Mar 01 00:00:00 EST 1989}
}

Technical Report:
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