Topic
Ergun equation
About: Ergun equation is a research topic. Over the lifetime, 320 publications have been published within this topic receiving 9944 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this paper, Lagrangian-type numerical simulation was carried out on plug flow of cohesionless, spherical particles conveyed in a horizontal pipe and the motion of individual particles contacting each other was calculated using the equations of motion and a modified Cundall model.
1,608 citations
951 citations
TL;DR: In this article, extensive lattice Boltzmann simulations were performed to obtain the drag force for random arrays of monodisperse and bidisperse spheres, and a new drag law was suggested for general polydisperse systems.
Abstract: Extensive lattice-Boltzmann simulations were performed to obtain the drag force for random arrays of monodisperse and bidisperse spheres. For the monodisperse systems, 35 different combinations of the Reynolds number Re (up to Re = 1,000) and packing fraction were studied, whereas for the bidisperse systems we also varied the diameter ratio (from 1:1.5 to 1:4) and composition, which brings the total number of different systems that we considered to 150. For monodisperse systems, the data was found to be markedly different from the Ergun equation and consistent with a correlation, based on similar type of simulations up to Re = 120. For bidisperse systems, it was found that the correction of the monodisperse drag force for bidispersity, which was derived for the limit Re = 0, also applies for higher-Reynolds numbers. On the basis of the data, a new drag law is suggested for general polydisperse systems, which is on average within 10% of the simulation data for Reynolds numbers up to 1,000, and diameter ratios up to 1:4
696 citations
TL;DR: In this paper, the influence of the container walls on the pressure drop of packed beds is investigated and a detailed analysis of more than 2300 experimental data points reveals the Reynolds number dependence of this effect.
312 citations
TL;DR: In this paper, the Ergun equation has been used to predict single-phase pressure drop in a packed bed of arbitrary shaped particles to within ± 10 % on average on average.
285 citations