Author: Yasuo Onishi
Publisher:
ISBN:
Category : Chlordecone
Languages : en
Pages : 162
Book Description
Mathematical Simulation of Transport of Sediment and Kepone in the James River Estuary
Author: Yasuo Onishi
Publisher:
ISBN:
Category : Chlordecone
Languages : en
Pages : 162
Book Description
Publisher:
ISBN:
Category : Chlordecone
Languages : en
Pages : 162
Book Description
Mathematical Simulation of Transport of Sediment and Kepone in the James River Estuary
Author: Yasuo Onishi
Publisher:
ISBN:
Category : Chlordecone
Languages : en
Pages : 142
Book Description
Publisher:
ISBN:
Category : Chlordecone
Languages : en
Pages : 142
Book Description
Mathematical Simulation of Transport of Sediment and Kepone in the James River Estuary
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The mathematical simulation of sediment and Kepone (a highly chlorinated pesticide) transport in the James River estuary was conducted by applying the sediment and contaminant transport model, FETRA, to an 85-km river reach between Bailey and Burwell Bays. The FETRA code is an unsteady, two-dimensional, finite model, utilizing the Galerkin weighted residual method. The model consists of three submodels coupled together to take into account sediment-contaminant interaction. the submodels are: (1) sediment transport model, (2) dissolved contaminant transport model, and (3) particulate contaminant (contaminants adsorbed by sediment) transport model. Transport of sediment and particulate contaminants is simulated for each sediment type or size fraction. The FETRA code was applied to simulate the migration of sediment and Kepone for three river discharges. Tidally influenced depth and velocity distributions in the study area were obtained by the unsteady, one-dimensional code, EXPLORE. These results were used by the two-dimensional code, FETRA, to obtain longitudinal distributions of sediment and Kepone. Hence, the results presented here are cross-sectionally averaged values changing with tidal flow. Comparison of computed results and field data for both sediment and Kepone concentrations indicates very good agreement, confirming the validity of the model. Mathematical simulation of Kepone transport under most probable flow conditions yields an estimate of 89.1 kg/yr of Kepone transported seaward from Burwell Bay. Of this 89.1 kg of total Kepone, 25.3% is carried by sediment, while 74.7% is in a dissolved phase.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The mathematical simulation of sediment and Kepone (a highly chlorinated pesticide) transport in the James River estuary was conducted by applying the sediment and contaminant transport model, FETRA, to an 85-km river reach between Bailey and Burwell Bays. The FETRA code is an unsteady, two-dimensional, finite model, utilizing the Galerkin weighted residual method. The model consists of three submodels coupled together to take into account sediment-contaminant interaction. the submodels are: (1) sediment transport model, (2) dissolved contaminant transport model, and (3) particulate contaminant (contaminants adsorbed by sediment) transport model. Transport of sediment and particulate contaminants is simulated for each sediment type or size fraction. The FETRA code was applied to simulate the migration of sediment and Kepone for three river discharges. Tidally influenced depth and velocity distributions in the study area were obtained by the unsteady, one-dimensional code, EXPLORE. These results were used by the two-dimensional code, FETRA, to obtain longitudinal distributions of sediment and Kepone. Hence, the results presented here are cross-sectionally averaged values changing with tidal flow. Comparison of computed results and field data for both sediment and Kepone concentrations indicates very good agreement, confirming the validity of the model. Mathematical simulation of Kepone transport under most probable flow conditions yields an estimate of 89.1 kg/yr of Kepone transported seaward from Burwell Bay. Of this 89.1 kg of total Kepone, 25.3% is carried by sediment, while 74.7% is in a dissolved phase.
Mathematical simulation of transport of kepone and keponeladen sediments in the james river estuary
Author: Yasuo Onishi
Publisher:
ISBN:
Category :
Languages : en
Pages : 27
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 27
Book Description
Mathematical Simulation of Transport of Kepone and Kepone-laden Sediments in the James River Estuary. [Kepone is a Chlorinated Ketone Insecticide].
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The progress of a mathematical simulation study concerning kepone migration in the James River Estuary between Bailey Bay and the river mouth is described. The simulation is currently underway by applying the finite element sediment and contaminant transport model, FETRA, to solve time-dependent, longitudinal and lateral distributions of sediments and kepone by taking into account sediment-kepone interaction. The FETRA code solves sediment transport for three sediment types (i.e., cohesive and noncohesive sediments, and organic materials). The model also solves kepone transport for dissolved and particulate (attached to sediments) kepone. Particulate kepone is analyzed for those adsorbed by sediment of each sediment type. The accuracy and convergence of the FETRA code were tested for simple one- and two-dimensional equations. These test results indicated excellent agreement between the computer solutions and exact analytical solutions.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The progress of a mathematical simulation study concerning kepone migration in the James River Estuary between Bailey Bay and the river mouth is described. The simulation is currently underway by applying the finite element sediment and contaminant transport model, FETRA, to solve time-dependent, longitudinal and lateral distributions of sediments and kepone by taking into account sediment-kepone interaction. The FETRA code solves sediment transport for three sediment types (i.e., cohesive and noncohesive sediments, and organic materials). The model also solves kepone transport for dissolved and particulate (attached to sediments) kepone. Particulate kepone is analyzed for those adsorbed by sediment of each sediment type. The accuracy and convergence of the FETRA code were tested for simple one- and two-dimensional equations. These test results indicated excellent agreement between the computer solutions and exact analytical solutions.
NUREG/CR.
Author: U.S. Nuclear Regulatory Commission
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 132
Book Description
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 132
Book Description
Energy Research Abstracts
Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 1696
Book Description
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 1696
Book Description
Monthly Catalogue, United States Public Documents
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 946
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 946
Book Description
Nuclear Safety
Author:
Publisher:
ISBN:
Category : Nuclear engineering
Languages : en
Pages : 938
Book Description
Publisher:
ISBN:
Category : Nuclear engineering
Languages : en
Pages : 938
Book Description
Critical Review
Author: Yasuo Onishi
Publisher:
ISBN:
Category : Radioactive pollution of water
Languages : en
Pages : 528
Book Description
Publisher:
ISBN:
Category : Radioactive pollution of water
Languages : en
Pages : 528
Book Description