The flow properties of foam


Kroezen, A.B.J. and Groot Wassink, J. and Schipper, C.A.C. (1988) The flow properties of foam. Journal of the Society of Dyers and Colourists, 104 (10). p. 400. ISSN 0037-9859

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Abstract:The rheological behaviour of foam, prepared from an aqueous solution with lauryl sulphate as surfactant, has been measured with a viscometer as a function of the blow ratio, bubble diameter distribution and concentration of the thickener used. The influence of wall slip and of hysteresis effects on the rheological behaviour have been determined. Calculations and measurements pertaining to the pressure drop in pipes have been performed, in which the foam was considered as a compressible pseudoplastic whose rheology depended on blow ratio. The distribution of the foam passing through a closed distribution unit has been studied. This distribution unit consisted of a pipe and a cross-head distribution slit. Complementary measurements of the flow of foam through narrow slits have been made. The design of a closed foam distribution unit is discussed. The consequences of the choice of several design parameters are examined.
Item Type:Article
Copyright:© 1988 Wiley InterScience
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