FILTRATION VELOCITY OF WATER IN COARSEPLASTIC PARTICLES

Experimentalinvestigation of the effect of particle geometry on the values of hydraulic conductivity using 5 plastic particle fractions ofdifferent shapes and sizes is presented in this paper. Conducted experiments serveasabackgroundfor ongoing researchfocused onsediment transport of erodible bed in tilting flume. When a flowing mixture of water and particles evolves above astationary bed, thedetermination of flow rate of waterfiltered through stationary bed is very important in order to estimatethe inaccuracyof total flow ratetroughtheflume.In order to evaluate the amount of infiltrate water,experimentswere carried out inbothlaminar and turbulent flowregimes. The transition area was identified,and the results show only small effect of particle geometry on the transition between regimes. Experimentally identified valuesofhydraulic conductivity wereused to calculatethe amountof infiltrate water inthetiltingflumefor different inclination angles.Experimentally identified values of hydraulic conductivityare, for example,useful in designing industrial water filters,as the materials used to conduct experiments and those in filters are similar.