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• <br /> k <br /> r <br /> Help: Sail Permeability <br /> r <br /> I Note that k denotes the "permeability"of a porous media,while K k k K <br /> represents the"hydraulio oomduotivity". The two are related by (daray) (crit) [omrs) <br /> n � <br /> 10 � 10 "3 102 <br /> PH,09 _ 10 10 -4 10 <br /> ItH20 io 10 ' 1 <br /> T3 0 <br /> where [ c 10 10 10 -1 <br /> accelemdon due to gwity [980 cmts2jc e 10 10 •7 10 -s <br /> mcosi of grater Q 01 1cm-s to � 1 i0 .8 10 "o <br /> tY [ m <br /> px,o density of grater [1 0 91cro31 � 10 .1 d <br /> 10 •q iQ _ <br /> f <br /> •10 " <br /> When ohoosingperrneability values It Is onportaryt t 10 10 10 <br /> to keep in mind thatk (or Kj often vanes byCD <br /> ... 10 " 10 -11 10 -e <br /> several orders of magnitude over small distamces t,ji}; 10 •d 10 10 .� <br /> For this reason It Is better to cY�oose a range of k •�► <br /> a 'rARA 111111-1,\ <br /> See Cann man Tables Ret mato Flomate Calculation H13 <br />