Development of a rarefaction wave at discharge initiation in a storage silo—DEM simulations

Kobyłka, R.; Horabik, J.; Molenda, M.

doi:10.1016/j.partic.2017.03.006

Cited by 11 publications

(2 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The second verification of the mathematical derivation of Janssen's theory is performed using the DEM (Discrete Element Modelling) simulation method [12][13][14][15][16][17][18][19], which is based on calculating the mutual interactions of particles poured into the storage. Parameters such as, pressure, force, speed, torque, etc.…”

Section: Verification Using Dem Simulation Methodsmentioning

confidence: 99%

Monitoring bulk material pressure on bottom of storage using DEM

et al. 2019

View full text Add to dashboard Cite

This article focuses on the experimental verification of a mathematical derivation of Janssen’s theory, which describes the distribution of pressures within the bulk material and pressure distribution on the walls of storage facilities. The experimental verification is performed in two ways. The first is the real measurement of the load transfer in a bulk material cylinder and the second is similar to the detection of the load transfer through simulations using the DEM method. The aim is to compare the results of the theoretical calculation according to Janssen’s theory with the real measurement and a simulation of exactly the same model situation. At the beginning of any design or optimisation of existing transport or storage facilities, the most important is the analysis of the bulk material in the form of measurements of mechanical-physical properties. The analysis methods used are also described here. The pressure at the bottom of a storage container between the methods used showed negligible differences. From this finding, it can be concluded that the DEM method is a very suitable means for verifying the design of transport and storage facilities. The simulations provide important information and insights that can also be used to optimise existing transport or storage facilities.

show abstract

Section: Verification Using Dem Simulation Methodsmentioning

confidence: 99%

Monitoring bulk material pressure on bottom of storage using DEM

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Using the sum of vertical forces exerted by rapeseed particles on the walls and floor of a receiving container, a difference in the mass flow rates was observed [87]. By recording the position, velocity, and force of wheat particles in a silo with DEM, the location of the front of the rarefaction wave was inferred [194]. Then the formation and propagation of the wave in the discharging process was analyzed.…”

Section: Simulation Of Storage and Discharge Of Seed In Silosmentioning

confidence: 99%

Applications of Discrete Element Method in the Research of Agricultural Machinery: A Review

et al. 2021

View full text Add to dashboard Cite

As a promising and convenient numerical calculation approach, the discrete element method (DEM) has been increasingly adopted in the research of agricultural machinery. DEM is capable of monitoring and recording the dynamic and mechanical behavior of agricultural materials in the operational process of agricultural machinery, from both a macro-perspective and micro-perspective; which has been a tremendous help for the design and optimization of agricultural machines and their components. This paper reviewed the application research status of DEM in two aspects: First is the DEM model establishment of common agricultural materials such as soil, crop seed, and straw, etc. The other is the simulation of typical operational processes of agricultural machines or their components, such as rotary tillage, subsoiling, soil compaction, furrow opening, seed and fertilizer metering, crop harvesting, and so on. Finally, we evaluate the development prospects of the application of research on the DEM in agricultural machinery, and look forward to promoting its application in the field of the optimization and design of agricultural machinery.

show abstract