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Determination of Terminal Velocity of Some Agricultural Grain Using Ansys Rocky DEM - CFD Coupling Simulation

Received: 31 December 2022     Accepted: 9 June 2023     Published: 29 June 2023
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Abstract

Aerodynamic property of food grains are key elements in agricultural product harvesting, pneumatic conveying, separating, cleaning, transportation, and storage. Crop grain aerodynamic property influences the design and operational parameters of equipment. Among the property, terminal velocity is highly essential because it is crop variety specific and moisture dependant. Previously, the terminal velocity of agricultural grains could be evaluated experimentally using a vertical wind column equipment, but numerical analysis has recently emerged as the fastest and least expensive way for solving most of engineering problems, In this study, Rocky DEM was fully coupled with Ansys Fluent to model and simulate analysis of terminal velocity of Teff, wheat, Maize, Sorghum and Barley grains. after simulation results obtained comparison between experimental and simulation results based on previous researcher, from previous researchers terminal velocity of Teff, Wheat, Maize, Sorghum and Barley grains were 3.08-3.96m/s, 6.81-6.86m/s, 10.6-11.4m/s, 9.10-9.79m/s and 6.8-8.53m/s respectively at different moisture content, similarly for Ansys Rocky DEM-CFD coupling simulation result terminal velocity for Teff, Wheat, Maize, Sorghum and Barley grain were 3.6m/s, 9.1m/s, 10.8m/s, 9.6m/s and 6.6m/s respectively. Ansys RockyDEM-CFD coupling simulation results were almost the same with experimental result. To determine terminal velocity of any agricultural grain we can use experimental method or Ansys Rocky DEM-CFD coupling.

Published in Science Development (Volume 4, Issue 2)
DOI 10.11648/j.scidev.20230402.12
Page(s) 28-35
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2023. Published by Science Publishing Group

Keywords

Modeling, Simulation, Terminal Velocity, Physical Property, Grain, DEM-CFD Coupling

References
[1] Abdul, Y., Qaid, G. & Al-mosanief, I., 2022. Effect of Moisture Content on Physical Characteristics of Sorghum Grains Yahya Abdul Galil Qaid Sallam and Ismael Al-mosanief., (5), pp. 5–20.
[2] Technical Library - Rocky DEM – ESSS (2018). Ansys Fluent (CFD) and Rocky DEM coupling for modeling fluid particulate systems. https://rocky.esss.co/blog/ansys-fluent-cfd-and-rocky-dem-coupling-for-modeling-fluid-particulate-systems/
[3] Awgichew, A., 2019. Aerodynamic Properties of Tef for Separation from Chaff. Civil and Environmental Research, 11 (3), pp. 39–43.
[4] Copyright, C. O. M. & Reserved, A. R., 2015. Rocky dem user manual., pp. 1–211.
[5] El-Emam, M. A. et al., 2021. Theories and Applications of CFD–DEM Coupling Approach for Granular Flow: A Review, Springer Netherlands. Available at: https://doi.org/10.1007/s11831-021-09568-9.
[6] Guzman, L. & Chen, Y., 2020. Coupled CFD-DEM Simulation of Seed Flow in an Air Seeder Distributor Tube.
[7] Karimi, M. et al., 2009. The effect of moisture content on physical properties of wheat. Pakistan Journal of Nutrition, 8 (1), pp. 90–95.
[8] Khoshtaghaza, M. H. & Mehdizadeh, R., 2006. Aerodynamic Properties of Wheat Kernel and Straw Materials. Agricultural Engineering International: the CIGR Ejournal, VIII (January 2006), pp. 1–10.
[9] Kuang, S., Zhou, M. & Yu, A., 2020. CFD-DEM modelling and simulation of pneumatic conveying: A review. Powder Technology, 365, pp. 186–207. Available at: https://doi.org/10.1016/j.powtec.2019.02.011.
[10] Mi, G. et al., 2022. Measurement of Physical Properties of Sorghum Seeds and Calibration of Discrete Element Modeling Parameters.
[11] Molenda, M. & Stasiak, M., 2001. Determination of the elastic constants of cereal grains in a uniaxial compression test. International Agrophysics, 16 (1), pp. 61–65.
[12] Surpam, T., Pardeshi, I. & Rokade, H., 2019. Engineering properties of sorghum., 7 (5), pp. 108–110.
[13] Tabatabaeefar, A., 2003. Moisture-dependent physical properties of wheat. International Agrophysics, 17 (4), pp. 207–211.
[14] Yenge, G. et al., 2018. Physical Properties of Maize (Zea mays L.) Grain., (March 2019), pp. 3–7.
[15] Zewdu, A. D., 2007. Aerodynamic properties of tef grain and straw material. Biosystems Engineering, 98 (3), pp. 304–309.
[16] Zewdu, A. D. & Solomon, W. K., 2007. Moisture-Dependent Physical Properties of Tef Seed. Biosystems Engineering, 96 (1), pp. 57–63.
[17] Zhou, H. et al., 2019. A novel, coupled CFD-DEM model for the flow characteristics of particles inside a pipe. Water (Switzerland), 11 (11).
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  • APA Style

    Lemi Demissie Boset, Amana Wako, Biniam Zewdie. (2023). Determination of Terminal Velocity of Some Agricultural Grain Using Ansys Rocky DEM - CFD Coupling Simulation. Science Development, 4(2), 28-35. https://doi.org/10.11648/j.scidev.20230402.12

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    ACS Style

    Lemi Demissie Boset; Amana Wako; Biniam Zewdie. Determination of Terminal Velocity of Some Agricultural Grain Using Ansys Rocky DEM - CFD Coupling Simulation. Sci. Dev. 2023, 4(2), 28-35. doi: 10.11648/j.scidev.20230402.12

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    AMA Style

    Lemi Demissie Boset, Amana Wako, Biniam Zewdie. Determination of Terminal Velocity of Some Agricultural Grain Using Ansys Rocky DEM - CFD Coupling Simulation. Sci Dev. 2023;4(2):28-35. doi: 10.11648/j.scidev.20230402.12

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  • @article{10.11648/j.scidev.20230402.12,
      author = {Lemi Demissie Boset and Amana Wako and Biniam Zewdie},
      title = {Determination of Terminal Velocity of Some Agricultural Grain Using Ansys Rocky DEM - CFD Coupling Simulation},
      journal = {Science Development},
      volume = {4},
      number = {2},
      pages = {28-35},
      doi = {10.11648/j.scidev.20230402.12},
      url = {https://doi.org/10.11648/j.scidev.20230402.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.scidev.20230402.12},
      abstract = {Aerodynamic property of food grains are key elements in agricultural product harvesting, pneumatic conveying, separating, cleaning, transportation, and storage. Crop grain aerodynamic property influences the design and operational parameters of equipment. Among the property, terminal velocity is highly essential because it is crop variety specific and moisture dependant. Previously, the terminal velocity of agricultural grains could be evaluated experimentally using a vertical wind column equipment, but numerical analysis has recently emerged as the fastest and least expensive way for solving most of engineering problems, In this study, Rocky DEM was fully coupled with Ansys Fluent to model and simulate analysis of terminal velocity of Teff, wheat, Maize, Sorghum and Barley grains. after simulation results obtained comparison between experimental and simulation results based on previous researcher, from previous researchers terminal velocity of Teff, Wheat, Maize, Sorghum and Barley grains were 3.08-3.96m/s, 6.81-6.86m/s, 10.6-11.4m/s, 9.10-9.79m/s and 6.8-8.53m/s respectively at different moisture content, similarly for Ansys Rocky DEM-CFD coupling simulation result terminal velocity for Teff, Wheat, Maize, Sorghum and Barley grain were 3.6m/s, 9.1m/s, 10.8m/s, 9.6m/s and 6.6m/s respectively. Ansys RockyDEM-CFD coupling simulation results were almost the same with experimental result. To determine terminal velocity of any agricultural grain we can use experimental method or Ansys Rocky DEM-CFD coupling.},
     year = {2023}
    }
    

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  • TY  - JOUR
    T1  - Determination of Terminal Velocity of Some Agricultural Grain Using Ansys Rocky DEM - CFD Coupling Simulation
    AU  - Lemi Demissie Boset
    AU  - Amana Wako
    AU  - Biniam Zewdie
    Y1  - 2023/06/29
    PY  - 2023
    N1  - https://doi.org/10.11648/j.scidev.20230402.12
    DO  - 10.11648/j.scidev.20230402.12
    T2  - Science Development
    JF  - Science Development
    JO  - Science Development
    SP  - 28
    EP  - 35
    PB  - Science Publishing Group
    SN  - 2994-7154
    UR  - https://doi.org/10.11648/j.scidev.20230402.12
    AB  - Aerodynamic property of food grains are key elements in agricultural product harvesting, pneumatic conveying, separating, cleaning, transportation, and storage. Crop grain aerodynamic property influences the design and operational parameters of equipment. Among the property, terminal velocity is highly essential because it is crop variety specific and moisture dependant. Previously, the terminal velocity of agricultural grains could be evaluated experimentally using a vertical wind column equipment, but numerical analysis has recently emerged as the fastest and least expensive way for solving most of engineering problems, In this study, Rocky DEM was fully coupled with Ansys Fluent to model and simulate analysis of terminal velocity of Teff, wheat, Maize, Sorghum and Barley grains. after simulation results obtained comparison between experimental and simulation results based on previous researcher, from previous researchers terminal velocity of Teff, Wheat, Maize, Sorghum and Barley grains were 3.08-3.96m/s, 6.81-6.86m/s, 10.6-11.4m/s, 9.10-9.79m/s and 6.8-8.53m/s respectively at different moisture content, similarly for Ansys Rocky DEM-CFD coupling simulation result terminal velocity for Teff, Wheat, Maize, Sorghum and Barley grain were 3.6m/s, 9.1m/s, 10.8m/s, 9.6m/s and 6.6m/s respectively. Ansys RockyDEM-CFD coupling simulation results were almost the same with experimental result. To determine terminal velocity of any agricultural grain we can use experimental method or Ansys Rocky DEM-CFD coupling.
    VL  - 4
    IS  - 2
    ER  - 

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Author Information
  • Department of Mechanical System and Vehicle Engineering, Adama Science and Technology University, Adama, Ethiopia

  • Department of Mechanical System and Vehicle Engineering, Adama Science and Technology University, Adama, Ethiopia

  • Department of Mechanical System and Vehicle Engineering, Adama Science and Technology University, Adama, Ethiopia

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