http://www.wiki.mohid.com/index.php?action=history&feed=atom&title=Bottom_boundary_condition 2026-04-04T16:44:12Z Revision history for this page on the wiki MediaWiki 1.28.0 http://www.wiki.mohid.com/index.php?title=Bottom_boundary_condition&diff=79&oldid=prev 2008-12-03T10:26:57Z

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Guillaume http://www.wiki.mohid.com/index.php?title=Bottom_boundary_condition&diff=78&oldid=prev 2007-11-29T16:42:40Z

<p></p> <p><b>New page</b></p><div>For each water property the user needs to define if it wants or not to impose sediment-water fluxes of particulate or dissolved matter. An example of a input file InterfaceWaterAir_x.dat where bottom boundary condition is defined is presented below.<br /> <br /> ==WaterProperties_x.dat==<br /> For each property is possible to impose a bottom boundary<br /> condition. By default no bottom boundary condition is imposed (BOTTOM_FLUXES : 0).<br /> &lt;beginproperty&gt;<br /> BOTTOM_FLUXES : 1 <br /> &lt;endproperty&gt;<br /> ==InterfaceSedimentWater_x.dat==<br /> Bottom absolute rugosity in meters<br /> &lt;begin_rugosity&gt;<br /> DEFAULTVALUE : 0.0025<br /> &lt;end_rugosity&gt;<br /> Critical shear stress erosion in Pa<br /> &lt;begin_critical_shear_erosion&gt;<br /> INITIALIZATION_METHOD : CONSTANT<br /> DEFAULTVALUE : 0.4<br /> &lt;end_critical_shear_erosion&gt;<br /> Critical shear stress deposition in Pa<br /> &lt;begin_critical_shear_deposition&gt;<br /> INITIALIZATION_METHOD : CONSTANT<br /> DEFAULTVALUE : 0.2<br /> &lt;end_critical_shear_deposition&gt;<br /> Erosion rate in kg/m2/s<br /> &lt;begin_erosion_rate&gt;<br /> INITIALIZATION_METHOD : CONSTANT<br /> DEFAULTVALUE : 0.00005<br /> &lt;end_erosion_rate&gt;<br /> Definition of the bottom boundary of the particulate property cohesive sediment<br /> &lt;beginproperty&gt;<br /> NAME : cohesive sediment<br /> UNITS : kg/m2<br /> DESCRIPTION : cohesive sediment mass<br /> OLD : 1<br /> PARTICULATE : 1<br /> WATER_FLUXES : 1<br /> EROSION : 1<br /> DEPOSITION : 1<br /> MASS_LIMITATION : 1<br /> MASS_MIN : 1e-8<br /> MIN_VALUE : 1e-4<br /> FILE_IN_TIME : NONE<br /> INITIALIZATION_METHOD : ASCII_FILE<br /> FILENAME : ..\..\GeneralData\BottomSed\BottomSed.dat<br /> REMAIN_CONSTANT : 0<br /> DEFAULTVALUE : 0.01<br /> TIME_SERIE : 0<br /> BOX_TIME_SERIE : 0<br /> OUTPUT_HDF : 1<br /> &lt;endproperty&gt;<br /> <br /> [[Category:MOHID Water]]</div>

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