Experimental verification of the frictional pressure drop through porous media /

The frictional pressure drop across a porous (36%) pebble bed was measured. The ratio of bed-to-pebble diameter was 72, sphericity of the pebbles was 1, and air flow rates varied from 0.13 to 1.3 lb/sec-sq ft, based on the bed area. The data obtained is compared to the data predicted by G.G. Brown, and to the work of P.C. Carman, D.E. Randall, and S.S. Millwright. Pebble motion within the bed and the effect of the method of flow initiation on the frictional pressure drop were also investigated.AD0269484 (from http://www.dtic.mil)."October 1961."Includes bibliographical references (page 5).The frictional pressure drop across a porous (36%) pebble bed was measured. The ratio of bed-to-pebble diameter was 72, sphericity of the pebbles was 1, and air flow rates varied from 0.13 to 1.3 lb/sec-sq ft, based on the bed area. The data obtained is compared to the data predicted by G.G. Brown, and to the work of P.C. Carman, D.E. Randall, and S.S. Millwright. Pebble motion within the bed and the effect of the method of flow initiation on the frictional pressure drop were also investigated.Air Force Contract No.Mode of access: Internet