2026-04-13T02:38:32Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/1906282025-07-16T22:45:59Zcom_2072_1033col_2072_452949

Drag coefficient of spherical particles in turbulent channel flow Chara, Zdenek Dolansky, Jindrich Kysela, Bohus Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits Finite element method Coupled problems (Complex systems) -- Numerical solutions Drag Coefficient, CFD, Lattice Boltzmann Method,Finite Volume Method Elements finits, Mètode dels The paper presents results of numerical calculations of drag coefficientsof large sphericalsolidparticles. Several hydraulic cases were tested. The first one -the spheres were fixed at different heights above a roughbed of an open channel, the second one -the spheres moved along the channel bed and the thirdone -the sphere impacted and rebounded from a smooth surface. Finite Volumeand Lattice Boltzmann methodswere used for the simulations. The Particle Image Velocimetry (2D-PIV) was used to determine the velocity field in the open channel. 2017 Conference report Open Access CIMNE