Calibration of a Model for Packing Whole Grains
نویسندگان
چکیده
The computer program WPACKING was validated using bin data for three different bin conditions: 1) a smooth-walled bin filled with wheat, 2) a corrugated-walled bin filled with wheat, and 3) a corrugated-walled bin filled with corn. WPACKING is a computer program which utilizes the differential form of Janssen’s equation to predict the pressures and amount of material stored in a bin. The differential form of Janssen’s equation allows the material properties in the equation to vary as a function of different properties. The material properties suggested for use in the WPACKING program were based upon previous experimental work by various researchers. From using the WPACKING program, it was apparent that a change in grain height has a greater effect in increasing the amount of packing than does a change in bin diameter or moisture content of the stored material.
منابع مشابه
Relationship between the Consumption of Refined and Whole Grains and the Risk of Metabolic Syndrome Components in Adults: The Tehran Lipid and Glucose Study
Introduction: This study aimed to investigate the relationship between the consumption of refined and whole grains and the risk of the metabolic syndrome in adults. Materials and Methods: In this prospective study, the consumption of whole and refined grains was assessed in 1452 subjects who participated in the Tehran Lipid and Glucose Study using a valid and reliable food frequency questionnai...
متن کاملThe Role of Particle Packing in Modeling Rock Mechanical Behavior using Discrete Elements
Introduction Both particle packing and particle contact parameters play important roles in determining the mechanical behavior of a discrete particle assembly. One common approach to calibrate discrete element models (DEM) of rock is to hold particle packing constant while contact parameters are changed to match observed macroscopic mechanical behavior. This often leads to non-unique material c...
متن کاملRelation between grain shape and fractal properties in random Apollonian packing with grain rotation.
We extend the common theme of random Apollonian packing of circles to consider orientable grains with a noncircular shape. Systems of up to 10(6) grains are examined for a range of polygonal and elliptical shapes using both the random Apollonian packing model and the new rotational random Apollonian packing model which takes into account the extra rotational degree of freedom of noncircular gra...
متن کاملAssessment of the AquaCrop Model for simulating Canola under different irrigation managements in a semiarid area
Field experiments were conducted in 2005-2006 and 2007-2008 and the data were used tocalibrate and validate yield and biomass of AquaCrop Model for canola (Brassica napus l.). Themodel was calibrated with the first year and then was validated with the second year data. Fivewater stress treatments at different growth stages were performed including fully irrigatedduring whole growing period (I1)...
متن کاملDevelopment of near infrared reflectance spectroscopy (NIRS) calibration model for estimation of oil content in a worldwide safflower germplasm collection
The development of NIRS calibration model as a rapid, precise, robust, and cost-effective method to estimate oil content in ground seeds of worldwide safflower germplasm collection grown under different agro-climatic conditions was the key objective of this research project. The oil content was measured by accelerated solvent extraction method in a total of 328 samples collected across 2004 (16...
متن کامل