...Kunpeng Shi; Guodong Jin; Weichao Yan; Huilin Xing Purpose Accurately evaluating fluid flow behaviors and determining permeability for deforming porous media is time-consuming and remains challenging. This paper aims to propose a novel machine-learning method for the rapid estimation...

..., in addition to the radial movement of the surface. Design/methodology/approach The present work is devoted to the analysis of a rotating permeable sphere. The sphere, because it is elastic, is allowed to expand or contract uniformly in the radial direction while rotating. Findings Numerical...

...Alejandro Clausse; Nicolás Silin; Gustavo Boroni Purpose The purpose of this paper is to obtain a permeability law of a gas flow through a permeable medium using particle image velocimetry experimental data as primal information, which is conflated with numerical calculations by means of a multi...

...Yingchun Zhang; Nesrin Ozalp; Gongnan Xie Purpose The purpose of this paper is to investigate the unsteady flow past through a permeable diamond-shaped cylinder and to study the effects of the aspect ratios and Darcy numbers of the cylinder. Design/methodology/approach The lattice Boltzmann...

..., and selecting tangential momentum accommodation coefficient (TMAC) for tight rock samples in permeability calculations. Design/methodology/approach The paper presents a numerical analysis of fluid flow in a low-porosity rock sample by using CFD. Modelling results allowed to determine mass flow rates...

...Hai Bang Ly; Vincent Monchiet; Daniel Grande Purpose – The purpose of this paper is to present a fully automated numerical tool for computing the effective permeability of porous media from digital images which come from the modern imagery technique. Design/methodology/approach...

... horizontal surfaces which are permeable and maintained at the temperature of ambient fluid. Attention is focused on how the flow and heat transfer is affected by variations of the buoyancy force, as well as by the permeability of the surfaces. Design/methodology/approach An upwind finite‐difference...

.... Findings The steady‐state thermal ignition criticality conditions as well as the solution branches was obtained accurately. It was found that a reduction in porous medium permeability will facilitate the early appearance of thermal ignition, hence, improving the effectiveness of engineering equipments...