Searched for: subject%3A%22Discrete%255C+element%255C+method%22
(1 - 20 of 60)

Pages

document
Zhang, A. (author)
Bio-mediated methods, such as microbially induced carbonate precipitation (MICP) and enzyme induced carbonate precipitation (EICP), have gained considerable attention as alternatives to invasive ground improvement techniques. MICP and EICP use biogeochemical processes to drive carbonate precipitation and bind soil grains, thereby improving the...
doctoral thesis 2024
document
Hosseini, A. (author)
HIsarna is a new and breakthrough smelting reduction technology for producing liquid hot metal for steelmaking directly from iron ores. Compared to the conventional blast furnace route, HIsarna achieves a 20% reduction in CO2 emissions by eliminating coking and the need for iron ore agglomeration processes such as sintering and pelletizing and...
doctoral thesis 2023
document
Akbaba, Kaan (author)
Designing structures that are more sustainable is a relevant topic within the construction industry. By choosing materials that have a low embodied energy value and optimizing the structures that can be constructed by these materials, one could potentially minimize the economical and environmental footprint of a structural design.<br/><br/>As...
master thesis 2023
document
Emmerink, J.V. (author), Hadi, A.H. (author), Jovanova, J. (author), Cleven, Chris (author), Schott, D.L. (author)
To improve the understanding of the mixing performance of double shaft, batch-type paddle mixers, the discrete element method (DEM) in combination with a Plackett–Burman design of experiments simulation plan is used to identify factor significance on the system’s mixing performance. Effects of several factors, including three material properties...
journal article 2023
document
Nieuwboer, B.J. (author), van Rhee, C. (author), Keetels, G.H. (author)
When dredging rock using a Cutter Suction Dredger the high amount of spillage is problematic, since it prevents an energy efficient removal process. This papers presents a coupled DEM-FVM method to simulate spillage, that can be used for optimizing the design and working method of the Cutter Suction Dredger. In these simulations, the challenge...
journal article 2023
document
Hadi, A.H. (author), Roeplal, R.N. (author), Pang, Y. (author), Schott, D.L. (author)
Segregation control is a challenging yet crucial aspect of bulk material handling processes. The discrete element method (DEM) can offer useful insights into segregation phenomena, provided that reliable models are developed. The main challenge in this regard is finding a good balance between including particle-level details and managing the...
journal article 2023
document
Nijssen, Tim M.J. (author), Padding, J.T. (author), Ottens, M. (author)
The hydrodynamics of the Expanded Bed Adsorption process is studied through simulations combining Computational Fluid Dynamics and the Discrete Element Method. A representative base case is defined, based on process design parameters commonly encountered in literature. Then, 19 other cases are defined, each representing a singular adjustment...
journal article 2023
document
Murano, Antonio (author), Mehrotra, A.A. (author), Ortega, Javier (author), Rodrigues, Hugo (author), Vasconcelos, Graça (author)
This work compares the ability of different numerical modelling approaches to simulate the out-of-plane behaviour of two-leaf stone masonry walls with different masonry bond configurations: an irregular drystone stone masonry wall and a masonry wall with roughly cut regular stone units. Finite element modelling, considering both a micro and...
journal article 2023
document
Li, Jianguo (author), Wang, Bin (author), Wang, Di (author), Zhang, Pei (author), Vardon, P.J. (author)
Aiming at modelling the mechanical behaviour of soil-rock mixtures accurately and efficiently, a coupled MPM-DEM formulation combining the material point method (MPM) and the discrete element method (DEM) is proposed. It is solved concurrently via the contact force linking the two individual methods. Specifically, the soil is modelled with...
journal article 2023
document
Zhang, A. (author), Dieudonné, A.A.M. (author)
Microbially induced carbonate precipitation is a promising ground improvement technique which can enhance the mechanical properties of soils through the precipitation of calcium carbonate. Experimental evidences indicate that the precipitated carbonate can display different distribution patterns. Crystals can develop at grain–grain contacts ...
journal article 2023
document
Emmerink, Jeroen (author)
The Discrete Element Method (DEM) in combination with an One Factor At a Time (OFAT) experimental simulation plan were employed to investigate the effect of a selection of factors on the mixing performance of a double shaft, batch-type paddle mixer. Most influential factors on the mixing performance of the paddle mixer are desired for...
master thesis 2022
document
van Kuik, Thobias (author)
A magnetorheological fluid is a type of smart fluid that can change its rheological properties when a magnetic field is applied to the fluid. The fluid is a suspension of magnetizable particles in a non-magnetic carrier fluid. When a magnetic field is applied to the fluid, the particles will form structures along the magnetic field lines. These...
master thesis 2022
document
van Gijsen, Emiel (author)
For years, ESI Eurosilo have successfully stored several, mostly low-density, non free-flowing bulk materials in their silo’s. Recently, demand has arisen whether bulk materials outside their current range could be stored using the same reclaim screw system. Unfortunately, the theory behind the screw dates from the 1980s and assumes fine...
master thesis 2022
document
Nieuwboer, B.J. (author)
Due to an increased demand for transport, ships become larger, needing a larger navigable depth. For these reasons a waterway needs to be dredged and a Cutter Suction Dredger is a vessel suitable for this operation.<br/><br/>A Cutter Suction Dredger is a floating vessel which removes sand, clay or soft rock from sea or river beds. It has a...
doctoral thesis 2022
document
Hageman, Evelien (author)
Over 5000 offshore wind turbine generators have been installed in the past decades. 80% of these wind turbines have a monopile foundation. Monopiles are hollow steel tubular piles with a diameter of up to 10m. The first phase of the monopile installation consists of the self-weight penetration into the seabed due to the mass of the monopile....
master thesis 2022
document
CHEN, QINGLU (author)
master thesis 2022
document
Zhang, Zhihai (author), Xiao, Hong (author), Wang, Y. (author), Fang, Jia (author), Nadakatti, M. M. (author), Wang, Haoyu (author)
The lateral resistance of ballast bed is an important parameter to prevent track expansion and maintain track stability. The invasion of sand particles can cause the change of lateral resistance of ballast bed and affect the stability of track structure, but little attention has been paid to the change characteristics of nonlinear lateral...
journal article 2022
document
Georgakopoulos, E. (author), Hosseini, A. (author), Kerry, T.J. (author), Hage, Johannes (author), Meijer, Koen (author), Offerman, S.E. (author), Yang, Y. (author)
HIsarna is a novel ironmaking process with great raw materials versatility that is attractive for various secondary resources. Among the materials that can be recycled, there is steel scrap which is fed to the furnace bath through an inclined chute. The velocity distribution of the scrap particles along the chute affects the particles’...
journal article 2022
document
Chi, Yihao (author), Xiao, Hong (author), Zhang, Zhihai (author), Fang, Shuwei (author), Wang, Haoyu (author)
Turnout is the key component of the railway tracks for trains to change direction, which is vital to operational safety and passenger comfort. Therefore, it is of great importance to perform a scientific and reasonable tamping operation for turnout areas. In this paper, based on the commercial software EDEM and RECURDYN, a coupled simulation...
journal article 2022
document
Xiao, Hong (author), Zhang, Zhihai (author), Chi, Yihao (author), Wang, Xiaoyu (author), Wang, Haoyu (author), Jiang, Ziqing (author)
The sand intrusion in railway tracks in sandy regions can significantly change the mechanical behaviour of tracks and thus threaten the safety of train operation. This paper presents substantial field tests on both sandy and clean railway tracks to study the effect of sand intrusion on the longitudinal resistance of ballast bed and the...
journal article 2022
Searched for: subject%3A%22Discrete%255C+element%255C+method%22
(1 - 20 of 60)

Pages