A Model for Static and Dynamic Phenomena in Deposition Processes

Hasan, Moh.; Opheusden, J.H.J. van

doi:10.22342/jims.13.2.83.173-189

Cited by 3 publications

(5 citation statements)

References 17 publications

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“…It has an almost symmetrical triangular shape with an irregular surface. So, angle of repose the pile calculated by Equation ( 7) xiand yi are the coordinates of particles centre, xc and ycare the centre of mass of the pile and the triangle [6]. So, the stable pile of polydisperse particles depositionas Figure 1 was obtained angle of repose 27,45 o .…”

Section: Dynamics and Final Structure Of Pilementioning

confidence: 99%

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Two Dimensional Simulation of Deposited Polydisperse Particles

Rohmah¹,

Hasan²,

Hadi³

2020

IJAERS

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This research aims tostudydynamic and static conditionsaspect deposition of particles.Simulation applies Granular Dynamics model to describe contact forces simultaneously.The movement of particles forms a trajectory.The trajectory of particles resolved by Gear Predictor-Corrector method. Simulation involved a variation of thestandard deviation value of particle diversity in two dimensional simulation of polydisperse particles. The results of simulation areimages of deposition process for every time iteration until the pile of particles in static condition. Conclusion is the smaller standard deviation value, cause the greater angle of reposeof pile, and otherwise the greaterstandard deviation value, cause the smaller angle of repose of pile. So, the standard deviationsize diversity of particles is inversely proportional height and slope of forming pile structure.

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Section: Dynamics and Final Structure Of Pilementioning

confidence: 99%

“…Multiple transition is from statics to dynamics and dynamics to statics. The simulation use monodisperse particle for simple model [6]. Not only monodisperse particle, but also we can simulated to find out the particle dynamics with different size, it call polydisperse particles.…”

Section: Introductionmentioning

confidence: 99%

Two Dimensional Simulation of Deposited Polydisperse Particles

Rohmah¹,

Hasan²,

Hadi³

2020

IJAERS

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“…One of the treatments related to particle dynamics is particle deposition. Particle deposition is the process of dropping particles onto a flat surface and forming them [5,6]. The piles are almost triangular with irregular surfaces.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Heterogeneous Particle Deposition using Digital Visual Fortran

Rohmah,

Hasan,

Hadi

2023

IJPSAT

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Granular particles have unique behaviour because it can behave like solids, liquids, and gaseous subtances. So, it is necessary to discuss the dynamics of these particles. Dynamical particles involve normal force, tangential force, and gravity force. Deposition is dropping particles at a medium, it produces a pile of particles. First step of simulation is assigned collision criteria. Next step is simulation using digital visual Fortran software and the final step is to analyze it. Based on simulation, dynamic behavior of particles is seen through on video created by assembling images of simulation result. The largest particles are fallen spread to underlying medium then followed by smaller particles. It fallen on center of pile until particles below bears a much heavier than the mass of particles. The smaller particles on center of pile pushes at the bottom and it makes cavity. As a result, the pile seems to have two peaks on static condition

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“…Those stable materials can be destabilized (slip) due to the collision (contact) with other materials. Hasan and van Opheusden [1] have developed collision force model that is able to mimic "stick-slip" phenomena. The particles collision and their forces are schematically shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

“…The forces consist of normal and tangential (friction) forces. In [1], the normal force is modeled by a Hookean spring and damper ) (…”

Section: Introductionmentioning

confidence: 99%

Granular Dynamic Simulations of Depositing Materials: Two-Dimensional Approach

Hasan¹

2022

Advances in Computer Science Research

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During the deposition process, many factors play a role in the dynamics of the system including materials' characteristics and media onto which the materials dropped. The stick-slip model has been applied to simulate the depositions of polydisperse granular materials. As the size of the materials varied, and hence the criteria for colliding materials, the dynamics and the structures of the resulting systems could be different. The research aims are to investigate the dynamics of the deposition of polydisperse materials and the structures of the resulting piles. The results show that during the deposition process, internal landslide plays an important role, but surface avalanche is not the main mechanism as observed in monodisperse materials. In addition, the pile structures are not close-packed, and the force networks are not dominated by diamond shapes.

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A Model for Static and Dynamic Phenomena in Deposition Processes

Cited by 3 publications

References 17 publications

Two Dimensional Simulation of Deposited Polydisperse Particles

Two Dimensional Simulation of Deposited Polydisperse Particles

Simulation of Heterogeneous Particle Deposition using Digital Visual Fortran

Granular Dynamic Simulations of Depositing Materials: Two-Dimensional Approach

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