Three-dimensional modelling of the human knee joint

Erdemir, Ahmet


Three-dimensional modelling of stratified coastal waters
Balas, L; Ozhan, E (2002-01-01)
An implicit baroclinic 3-D model developed to simulate the circulation in coastal waters, is presented. The model has hydrodynamic, transport and turbulence model components. It is a composite finite difference-finite element model. In the horizontal plane, second order central finite differences on a staggered scheme and in the vertical Galerkin method with linear shape functions are used. Implicit equations are solved by Crank Nicholson method which has second order accuracy in time also. Developed model ...
Three-dimensional modeling of intersonic shear-crack growth in asymmetrically loaded unidirectional composite plates
Yu, C.; Pandolfi, A.; Ortiz, M.; Çöker, Demirkan; Rosakis, A.J. (Elsevier BV, 2002-12)
An anisotropic cohesive model of fracture is applied to the numerical simulation of Coker and Rosakis experiments (2001). In these experiments, a unidirectional graphite-epoxy composites plate was impacted with a projectile, resulting in an intersonic shear-dominated crack growth. The simulations account for explicit crack nucleation-through a self-adaptive remeshing procedure-crack closure and frictional sliding. The parameters used in the cohesive model are obtained from quasi-static fracture experiments,...
Three-dimensional numerical modelling of temporal and spatial pattern formation in a dc-driven gas discharge-semiconductor system
Rafatov, İsmail (IOP Publishing, 2016-12-01)
A three-dimensional numerical model is developed and applied to study the temporal and spatial pattern formation in the planar layered system, consisting of a glow discharge layer, coupled to a high ohmic semiconductor layer. The whole system is sandwiched between two planar electrodes, to which a dc voltage is applied.
Three-dimensional modeling of a high temperature polymer electrolyte membrane fuel cell at different operation temperatures
Caglayan, Dilara Gulcin; Sezgin, Berna; DEVRİM, YILSER; Eroğlu, İnci (2016-06-22)
A three-dimensional model for a high temperature polymer electrolyte membrane (PEM) fuel cell having an active area of 25 cm(2) is developed. Triple mixed serpentine flow channel single cell with phosphoric acid doped polybenzimidazole (FBI) membrane is used in the model. Steady-state, isothermal, single phase assumptions are defined for the system. The model is simulated at different temperatures ranging from 100 to 180 degrees C to investigate the influence of operation temperature on the performance of t...
Three-dimensional CFD analysis of liquid slug acceleration and impact in a voided pipeline with end orifice
He, Junling; Hou, Qingzhi; Lian, Jijian; Tijsseling, Arris S.; Bozkuş, Zafer; Laanearu, Janek; Lin, Lei (2022-01-01)
© 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.This research describes the dynamic behavior of an isolated slug driven by pressurized air in a voided line with an end orifice. A three-dimensional (3D) computational-fluid-dynamics (CFD) model is used to simulate the rapid propulsion and impact at the orifice for given slug length and driving air pressure, and is validated against experimental data. New mechanisms are observed: (i) the driving air pressure at the slug...
Citation Formats
A. Erdemir, “Three-dimensional modelling of the human knee joint,” Middle East Technical University, 1998.