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DESCAR software: algorithms VII

                               

(b) Distant mixing zone:

 

In such a case, we approach

 

F1(t)=(2π)-1/2B σy-1/2

F2(Y,t)=exp[(-Y2/2σy2)]

F3(Z,t)=e/Hh

 

being σy=(B2/16+2Kyt)1/2. Here, we suppose that the plume was homogenized vertically when the water depth was Hh, that is the depth in the point where the thickness of the plume begins to occupy the whole layer of water. The program calculates considering the bottom of the sea like a flat surface. Then, Hh is the water depth at the location of the deepest outfall. If you want to consider a higher water thickness than outfall depth, you can draw a deeper outfall whose pollutant concentration is null. In asuch a case, the water depth is the depth of the deepest outfall. The calculation will not be affected by the null concentration of the deepest outfall.

 

 

(*)We have found, in our opinion, typographic errors in Orden del 13 de Julio de 1993 del Ministerio de Obras Públicas y Transportes del Reino de ESPAÑA, B.O.E. Martes 27 de Julio de 1993, página 22861 that we have corrected considering mathematical consistency. The software assumes the present corrections in the calculation.

 

 

References:

Orden del 13 de Julio de 1993 del Ministerio de Obras Públicas y Transportes del Reino de ESPAÑA, B.O.E. Martes 27 de Julio de 1993, página 22861, I. Disposiciones generales. Proyecto de conducciones de vertidos desde tierra al mar.

Gerard Kiely, 1999. Ingeniería Ambiental. Fundamentos, entornos, tecnologías y sistemas de gestión. Ed. McGraw-Hill.

E.N. Ramsden, 1996. Chemistry of the Environment. Ed.Stanley Thornes Ltd.

Geoff Hayward, 1992. Applied Ecology. Ed. Thomas Nelson and Sons Ltd.

Secretaría Provisional del Convenio de Estocolmo y la Unidad de Información para convenios del PNUMA, 2003. Eliminando los COP del Mundo: Guía del convenio de Estocolmo sobre contaminantes orgánicos persistentes.  Publicado por PNUMA.

IKSR 2000 : M. Braun, “The Pathways for the most important hazardous substances in the rhine basin (during floods)”, International Commission for the Protection of the Rhine, Koblenz, Germany, in Int. Symposium on River Flood Defence, Kassel,, Kassel Reports of Hydraulic Engineering No. 9/2000

 

Algorithms I -  Algorithms II - Algorithms III - Algorithms IV - Algorithms V - Algorithms VI - Algorithms VII

 

                                                                               

Canarina Algoritmos Numéricos, S.L.

Environmental software · environmental software solutions

Canary Islands, Spain

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European Union · network on Pollution

Member of MAPO: European network on Marine Pollution.

Project funded by the European Commission

through the 6th Framework Programme for Research and Development

 

 

                               

 

DESCAR - Solutions - Advantages - Price - Data I - Data II - Average - Import - Graphs I - Graphs II  -  Commands - Algorithms I - Algorithms II - Algorithms III - Algorithms IV - Algorithms V - Algorithms VI - Algorithms VII - Pollutants I - Pollutants II - The sea I - The sea II - Pycnocline - Google maps - GIS

 

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