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Bionics: Learning from Nature - Textured GRP pipes with improved run-off properties

Experimental tests on a flat and a semi-circular-shaped channel section, and on a 25 m long concrete channel section, have succeeded in finding effectively functional surface textures easily implementable in pipe production, and using which depositions of solids can be avoided even at low rates of flow and only slight gradients and, in the case of only intermittent operation, any deposited solids can be quickly rinsed off.

by Dr.-Ing. Wolfgang Berger, Dipl.-Phys. Jörg Labahn

These discoveries have been applied to GRP pipes. Systematic tests using various arrangements and various texturing materials for a 24 m long 2/3 pipe-shell channel sections confirm that the application of textures to the interior side of a pipe base permits the achievement of a significant reduction in sediment clearance times. A texture consisting of individual elements makes a particular contribution to the generation of artificial turbulence.

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published: Vulkan-Verlag GmbH, 3R 12 / 2004 (December 2004), 12|2004
Keywords: Bulky Waste, Plastics
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