Modelling of the drag force of agricultural seeds applied to the discrete element method

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00341350" target="_blank" >RIV/68407700:21110/19:00341350 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.biosystemseng.2018.11.013" target="_blank" >https://doi.org/10.1016/j.biosystemseng.2018.11.013</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.biosystemseng.2018.11.013" target="_blank" >10.1016/j.biosystemseng.2018.11.013</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modelling of the drag force of agricultural seeds applied to the discrete element method

Popis výsledku v původním jazyce

Improvements in design and performance of post-harvesting equipment, such as graindryers, cleaning machines, silos, bucket elevators and conveyors, depend on betterknowledge of the physical properties and dynamic behaviour of seeds. In this work,experimental data regarding form, size, orientation, and terminal velocity of seeds of soya,oat and maize were obtained using image processing and fluidised bed methods. Thediscrete element method (DEM) has been applied for the simulation of different processesinvolving agricultural seeds, but aerodynamic properties, such as drag force, are not alwayscorrectly considered. In this work, a clump-based drag engine model for the Yade DEMsimulation tool was developed, and DEM simulations of the seeds free fall were performed.The comparison between the simulation results and the experimental data shows that thedeveloped method is accurate, with its accuracy dependent on how well the modelled seedgeometry can be approximated by an ellipsoid.

Název v anglickém jazyce

Modelling of the drag force of agricultural seeds applied to the discrete element method

Popis výsledku anglicky

Improvements in design and performance of post-harvesting equipment, such as graindryers, cleaning machines, silos, bucket elevators and conveyors, depend on betterknowledge of the physical properties and dynamic behaviour of seeds. In this work,experimental data regarding form, size, orientation, and terminal velocity of seeds of soya,oat and maize were obtained using image processing and fluidised bed methods. Thediscrete element method (DEM) has been applied for the simulation of different processesinvolving agricultural seeds, but aerodynamic properties, such as drag force, are not alwayscorrectly considered. In this work, a clump-based drag engine model for the Yade DEMsimulation tool was developed, and DEM simulations of the seeds free fall were performed.The comparison between the simulation results and the experimental data shows that thedeveloped method is accurate, with its accuracy dependent on how well the modelled seedgeometry can be approximated by an ellipsoid.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20901 - Industrial biotechnology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Biosystems Engineering

ISSN

1537-5110

e-ISSN

1537-5129

Svazek periodika

178

Číslo periodika v rámci svazku

February

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

168-175

Kód UT WoS článku

000456902300013

EID výsledku v databázi Scopus

2-s2.0-85058182731