lecture_12 - LECTURE 12 - SPECIFIC STORAGE 12.1 SPECIFIC...

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S s V e V t LECTURE 12 - SPECIFIC STORAGE 12.1 SPECIFIC YIELD DEFINITION - RATIO OF THE VOLUME OF WATER THAT DRAINS FROM A SAMPLE UNDER GRAVITY V , TO THE VOLUME OF THE w SAMPLE V . s S = V /V y w s ALSO: S = n - S y r WHERE: n = POROSITY S = SPECIFIC RETENTION r 12.2 SPECIFIC STORAGE (ELASTIC STORAGE COEFFICIENT) DEFINITION - AMOUNT OF WATER PER UNIT VOLUME OF A SATURATED FORMATION THAT IS STORED OR EXPELLED FROM STORAGE OWING TO COMPRESSIBILITY OF THE MINERAL SKELETON AND PORE WATER PER UNIT CHANGE IN HEAD. WHERE: V = VOLUME OF WATER RELEASED FROM e ELASTIC STORAGE OF A UNIT CUBE OF AQUIFER (L ) 3 V = TOTAL VOLUME OF THE CUBE (L ) t 3 UNITS = 1/L
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lecture_12 - LECTURE 12 - SPECIFIC STORAGE 12.1 SPECIFIC...

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