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Review Articles On Biosystems Engineering | Open Access Journals
Journal of Bioengineering & Biomedical Science

Journal of Bioengineering & Biomedical Science

ISSN: 2155-9538

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Review Articles On Biosystems Engineering

The Discrete Element Method (DEM) has become popular for modeling the behavior of cereal grains during agricultural production, processing and transportation. DEM simulations provide both qualitative and quantitative information on the particle flow, which improves the understanding, design and optimization of grain handling equipment. The accuracy of DEM models is greatly affected by the values   of model input parameters, such as grain material and interaction properties. However, the precise and appropriate quantification of these properties remains a difficult task due to the irregular shapes of the grains and the heterogeneity of these biological materials. In this study, the DEM simulation material and the interaction properties of maize and wheat grains were determined with a combination of direct measurements and calibration tests and validated against bulk material tests. Characterization tests include X-ray microscopy to acquire information on the size and shape of the nucleus, the use of a reciprocating pin tribometer for friction coefficients, and an inclined surface drop test to calibrate. the restitution coefficients. The measured values   of the model parameters were used in the DEM simulations of two common bulk material tests: the apparent bulk density test and a rest angle test. The percent error in the bulk density test was 4.0% for corn and 8.4% for wheat, and the error in the rest angle test was 0.4% for corn and 1.3% for wheat. DEM simulations of apparent density and rest angle tests using the parameters measured with the characterization tests are capable of accurately predicting experimental measurements.

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Citations: 307

Journal of Bioengineering & Biomedical Science received 307 citations as per Google Scholar report

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