reactive

Reactive Transport

GETFLOWS can simulate in detailed process of contaminant transport in surface and subsurface hydro environment. Depositories of contaminants or harmful materials can be found all over the world. However, time to time we can hear the outbreaks or leakage of such materials around the world. The major problem of such materials is that even a small quantity of outbreak can cause a huge damage to the environment. Such a harmful contaminant outbreak can be caused by several reasons. In such a situation remediation or countermeasure steps are needed promptly. The severity of the spread of the contaminant should be calculated accurately. According to the source of the outbreak and the type of contaminant the different decomposition, reaction migration patterns occur.The pollution load outbreak is caused of many reasons, such as human sewage, business drainage, fertilization, and animal manure. The difference in the source of outbreak and the type of contaminant also results in the different decomposition/reaction process, penetration path into the ground, and migration patterns afterward.GETFLOWS provides more natural model development for both point source and non-point source pollutants. Various kinds of contaminant transport processes such as decomposition, chemical reactions, dynamic change of chemical species, adsorption/desorption, advection/dispersion, radionuclide decay chains and diffusion can be simultaneously modeled with the GETFLOWS. Most of the available commercial codes consider unit load method which assigns explicit point/non-point boundary conditions for pollutant sources. To evaluate the net pollution load for surface and subsurface environment, the effect of various kinds of physical and chemical processes is already considered in the unit load value. It is difficult to determine such values itself. However, GETFLOWS doesn’t require such value. Because many kinds of processes are individually considered in GETFLOWS, users only need to give actual observed load.The numerical data that can get from the simulation are concentration in water and solid phase, saturation in water/gas phase, pressure, potential, water depth/water level, flow speed, etc. of each substance.

3D grid block model to simulate water environment in regional to local scale

3D grid block model to simulate water environment in regional to local scale.

An example of water quality impact simulation on the lake by discharging rivers and their watersheds

An example of water quality impact simulation on the lake by discharging rivers and their watersheds.

Various Applications of GETFLOWS

  • Multiple nutrient transport simulation
  • Assessment of water quality impact due to contaminant transport in closed water bodies or river basins
  • Performance assessment of radioactive waste disposal system (radionuclide transport and dose simulation in the deep geosphere to biosphere)


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