In: Journal of Hydrology and Hydromechanics, vol. 68, no. 2
Artur Bartosik
Detaily:
Rok, strany: 2020, 119 - 127
Jazyk: eng
Kľúčové slová:
Flow with coarse particles; Particle-wall stress; Modelling of vertical flow.
URL originálneho zdroja: http://www.ih.sav.sk/jhh
O článku:
The paper presents validation of a mathematical model describing the friction factor by comparing the
predicted and measured results in a broad range of solid concentrations and mean particle diameters. Three different
types of solids, surrounded by water as a carrier liquid, namely Canasphere, PVC, and Sand were used with solids
density from 1045 to 2650 kg/m3, and in the range of solid concentrations by volume from 0.10 to 0.45. All solid
particles were narrowly sized with mean particle diameters between 1.5 and 3.4 mm. It is presented that the model
predicts the friction factor fairly well. The paper demonstrates that solid particle diameter plays a crucial role for the
friction factor in a vertical slurry flow with coarse solid particles. The mathematical model is discussed in reference to
damping of turbulence in such flows. As the friction factor is below the friction for water it is concluded that it is
possible that the effect of damping of turbulence is included in the KB function, which depends on the Reynolds number.
Ako citovať:
ISO 690:
Bartosik, A. 2020. Validation of friction factor predictions in vertical slurry flows with coarse
particles. In Journal of Hydrology and Hydromechanics, vol. 68, no.2, pp. 119-127. 0042-790X (until 2019) . DOI: https://doi.org/10.2478/johh-2020-0005
APA:
Bartosik, A. (2020). Validation of friction factor predictions in vertical slurry flows with coarse
particles. Journal of Hydrology and Hydromechanics, 68(2), 119-127. 0042-790X (until 2019) . DOI: https://doi.org/10.2478/johh-2020-0005
O vydaní:
Vydavateľ: VEDA, Publishing House of the Slovak Academy of Sciences, Bratislava, Slovakia
Publikované: 15. 6. 2020