A
Alejandro López
Researcher at University of Leeds
Publications - 13
Citations - 289
Alejandro López is an academic researcher from University of Leeds. The author has contributed to research in topics: Particle & Strain rate. The author has an hindex of 5, co-authored 13 publications receiving 175 citations. Previous affiliations of Alejandro López include University of Deusto.
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Jamming during particle spreading in additive manufacturing
Wenguang Nan,Wenguang Nan,Mehrdad Pasha,Tina Bonakdar,Alejandro López,Umair Zafar,S Nadimi,Mojtaba Ghadiri +7 more
TL;DR: In this article, the authors analyzed transient jamming of gas-atomised metal powders during spreading and determined the particle shape as a function of particle size, based on the projected area diameter, for which 90% of particles by number were smaller than this value.
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CFD study of Jet Impingement Test erosion using Ansys Fluent® and OpenFOAM®
TL;DR: In the comparison of OpenFoam with the latest version of Fluent, the main differences between the injection models are highlighted and the coupling possibilities between phases are taken into consideration.
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DEM analysis of the effect of particle shape, cohesion and strain rate on powder rheometry
TL;DR: In this paper, the dynamics of particle motion in the Freeman Technology FT4 rheometer is analyzed and a rheological model describing the relationship between the dimensionless shear stress and the inertial number for several particle shapes, cohesion values and blade tip speeds is proposed.
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Cohesive Powder Flow: Trends and Challenges in Characterisation and Analysis
Mojtaba Ghadiri,Mehrdad Pasha,Wenguang Nan,Colin Hare,Vivacqua,Umair Zafar,Saeid Nezamabadi,Alejandro López,S Nadimi +8 more
TL;DR: In this article, a critique of the current state of the art in characterisation and analysis of cohesive powder flow is presented, addressing the effects of cohesion, strain rate, fluid medium drag and particle shape.
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CFD study of fluid flow changes with erosion
TL;DR: For the first time, a three dimensional mesh deformation algorithm is used to assess fluid flow changes with erosion, being applicable to both Eulerian and Lagrangian based equations for erosion calculation.