Flow characteristics of homogeneous mixture in laminar flow zone

• Autorzy: Kempiński J.
• Języki publikacji: EN

Abstrakty

EN

Knowledge of the rheological characteristics of a mixture enables the defining of hydraulic losses in horizontal pipelines on the basis of dimensionless criterion type λ (Re gen), where λ is the pipe resistance dimensionless coefficient from the Darcy-Weisbach formula and Re gen is the generalized Reynolds number for the adopted rheological model. In order to describe the rheological character of plastic and viscous mixtures, the 3-parameter generalized Herschel-Bulkley model was applied. The complete gener-alized Reynolds number ReH for the Herschel-Bulkley model was formulated. The estimation of relative error ReH value determination for the laminar flow was conducted for two cases: when the yield point λ0 is taken into account and when it is not considered.

Słowa kluczowe

EN

laminar flow; homogeneous mixture; viscous mixtures; plastics

• Wydawca: Institute of Hydro-Engineering of Polish Academy of Sciences
• Czasopismo: Archives of Hydro-Engineering and Environmental Mechanics
• Rocznik: 2001
• Tom: Vol. 48, nr 4
• Strony: 57--68
• Opis fizyczny: Bibliogr. 18 poz., il.

Twórcy

autor

Kempiński J.

• Institute of Environmental Engineeńng, Agricultural University of Wrocław, pl. Grunwaldzki 24, 50-363 Wrocław