Kobyłka Rafał

Kobyłka Rafał

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PhD Kobyłka Rafał
Room: B129
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Phone: (81) 744 50 61 w. 188

Department and laboratory

Department: Department of Physical Properties of Plant Materials

Laboratory: Laboratory of Mechanics of Granular Materials

Publications

  1. 2024, Comparing open-source DEM frameworks for simulations of common bulk processes, Computer Physics Communications, 296, 109066; DOI: 10.1016/j.cpc.2023.109066
  2. 2024, Precise control of discharge of spherical particles by cone valve configuration: Insert – Converging orifice, Powder Technology, 433; 119225
  3. 2024, Discharge rate influenced by friction and shape of dimers: Numerical study, Tribology International, 193; 109421
  4. 2023, The influence of cohesion on polyhedral shapes during mixing in a drum, Chemical Engineering Science, 270, DOI: 10.1016/j.ces.2023.118499
  5. 2023, Controlled discharge of granular material from a flat floor silo with converging orifice, 14th International Conference on Agrophysics (ICA 2023); Lublin, Polska, 11-13 września 2023 r., 95-95
  6. 2023, Discharge rate influenced by shape and friction of particles in a shape of spheres and dimers, 14th International Conference on Agrophysics (ICA 2023); Lublin, Polska, 11-13 września 2023 r., 96-96
  7. 2023, The influence of the particle shape on the discharge rate from the model silo, VIII International Conference on Particle-Based Methods, Particles 2023, 9-11.10.2023, Mediolan, Włochy, 1-1
  8. 2022, DEM modelling of the influence of initial stress state on the discharge rate of spherical particles from a model silo, Powder Technology, 403,117402, str. 1-9, DOI: 10.1016/j.powtec.2022.117402
  9. 2022, Particle shape effects in granular material using GPU DEM, 9th World Congress on Particle Technology (WCPT9), Madrid, 18-22.09.2022 , str. 261-262
  10. 2022, Wpływ napowietrzenia mieszanki betonowej na transport chlorków w betonie, XXII Konferencja Naukowo-Techniczna "Kontra 2022 - Trwałość budowli i ochrona przed korozją"; Cedzyna k. Kielc, 13-14.10.2022,
  11. 2021, Breakage Strength of Wood Sawdust Pellets: Measurements and Modelling, Materials, 14(12), 3273; DOI: 10.3390/ma14123273
  12. 2021, Experimental analysis of wheat-wall friction and grain flow in a steel silo with corrugated walls, Biosystems Engineering, 209: 216-231; DOI: 10.1016/j.biosystemseng.2021.07.003
  13. 2021, Discharge Flow of Spherical Particles from a Cylindrical Bin: Experiment and DEM Simulations, Processes, 9,1860, str.1-20, DOI: 10.3390/pr9111860
  14. 2021, Experiments and DEM simulations of spherical particles discharge from a cylindrical bin, 13th International Conference on Agrophysics: Agriculture in changing climate 15-16 November 2021, Lublin, Poland, str. 166
  15. 2021, Comparing open-source DEM frameworks for simulations of common bulk proceses, VII International Conference on Particle-Based Methods (PARTICLES 2021), 4-5.10.2021, Hamburg, Germany,
  16. 2020, Discrete Element Method Modelling of the Diametral Compression of Starch Agglomerates, Materials, 13(4). 392, str1-22, DOI: 10.3390/ma13040932
  17. 2020, DEM simulation of the pressure distribution and flow pattern in a model grain silo with an annular segment attached to the wall, Biosystems Engineering, 193: 75-89
  18. 2020, Calibration of discrete-element-method model parameters of bulk wheat for storage, Biosystems Engineering, 200: 298-314; DOI: 10.1016/j.biosystemseng.2020.10.010
  19. 2019, Loads on grain silo insert discs, cones, and cylinders: Experiment and DEM analysis, Powder Technology, 343, str. 521-532, DOI: 10.1016/j.powtec.2018.11.032
  20. 2019, The Durability of Concrete Modified by Waste Limestone Powder in the Chemically Aggressive Environment, Materials, 12(10), 1639, str. 1-18, DOI: 10.3390/ma12101693
  21. 2019, DEM simulation of flow pattern and pressure distribution in a model grain silo with annular segment attached to the wall. DEM8, 8th International Conference on Discrete Element Methods, The Netherlands, 21-26.06.2019, str. 89
  22. 2018, Development of a rarefaction wave at the discharge initiation in a storage silo-DEM simulations, Particuology, 36: 37-49
  23. 2018, Discrete element method simulations and experimental study of interactions in 3D granular bedding during low-velocity impact, Powder Technology, 340: 52-67
  24. 2018, The content of chlorides in blast-furnace slag cement as a factor affecting the diffusion of chloride ions in concrete, 8th Scientific-Technical Conference on Material Problems in Civil Engineering (MATBUD’2018), Vol. 163, 05007; DOI: 10.1051/matecconf/201816305007
  25. 2018, Stress distribution and flow pattern in a model grain silo with obstruction attached to the wall, XIX World Congress of CIGR (The International Commission of Agricultural and Biosystems Engineering), Antalya, Turkey, 22-25.04.2018 r., str. 69
  26. 2017, Numerical simulation of the dynamic response due to discharge initiation of the grain silo, International Journal of Solids and Structures, str. 27-37
  27. 2015, Modelowanie efektów dynamicznych wywołanych rozpoczęciem opróżniania silosu zbożowego., 2015, 31-31
  28. 2015, DEM modeling of development of rarefaction wave in vertical column of granular solids., 2015, 28-29
  29. 2014, Development of rarefaction wave at discharge initiation of storage silo – DEM simulation, 7. Światowy Kongres Technologii Materiałów Rozdrobnionych / Word Congress on Particle Technology, Chiny, Beijing, 19-22.05.2014 r., 334
  30. 2014, DEM modelling of loads on obstructions buried in grain in a storage silo, 2014, No.-333
  31. 2014, Experimental study and discrete element method modeling of temperature distributions in rapeseed stored in a model bin., Journal of Stored Products Research, 2014, 59254-259
  32. 2014, DEM simulations of loads on obstruction attached to the wall of a model grain silo and of flow disturbance around the obstruction., Powder Technology, 2014, 256210-216
  33. 2013, Przykłady badania i modelowania obciążeń silosów na zboże, Budownictwo na obszarach wiejskich. Nauka, praktyka, perspektywy, 2013, (Rozdz.): 219-230
  34. 2013, DEM modelling of silo load asymmetry due to eccentric filling and discharge, Powder Technology, 2013, 23365-71
  35. 2013, DEM simulations of stress distribution around annular obstruction attached to the wall of a model grain silo, 2013
  36. 2013, DEM simulations of the influence of the obstruction attached to the wall on a static and flowing bed, 2013
  37. 2013, Visualization of characteristics of the contact network between spheres in 3D assembly, International Agrophysics, 2013, 27(3): 275-281
  38. 2013, Grain Silo Loads: Experiments and DEM Simulations, 2013, 45-45
  39. 2013, Loads in grain silo: comparison of experimental studies and dem simulations, 2013, 8-9
  40. 2013, Experiment and DEM modelling of powder slip-stick effect, 2013, 63-63
  41. 2012, Badanie obciążeń obiektów zagłębionych w materiale sypkim, Przegląd Budowlany, 2012, (4): 116-119
  42. 2012, DEM analysis of loads on disc inserts immersed in grain during silo filling and discharge, 2012, 158-163
  43. 2012, Eksperyment i symulacja komputerowa procesu propagacji energii cieplnej w rzepaku, 2012, 189-190
  44. 2012, Vertical Load on Disc Embedded in Static and Flowing Grain: Experimental and DEM Simulations, 2012
  45. 2012, Modelowanie metodą elementów dyskretnych procesów mechanicznych w ośrodkach rozdrobnionych, 2012, 88-89
  46. 2011, Modelowanie asymetrii obciążeń wywołanej niecentrycznym napełnianiem i opróżnianiem silosu zbożowego, 2011, 63-64
  47. 2011, Stymulacje obciążenia obiektów zanurzonych w materiale sypkim metodą elementów dyskretnych (DEM), 2011, 32-32
  48. 2010, Wpływ niecentrycznego napełniania i rozładowywania silosy na asymetrię obciążenia ścian – symulacje numeryczne, 2010
  49. 2010, Vertical loads on objects immersed in wheat filling a model silo, 2010, 19-20
  50. 2010, Non-symmetrical loads on silo walls due to eccentric filling and discharge – DEM simulations, 2010, 21-22
  51. 2009, Badanie obciążeń obiektów zanurzonych w materiale sypkim – rozważania teoretyczne., 2009
  52. 2009, Modelowanie elementarnych oddziaływań w obszarze kontaktu ziaren., 2009
  53. 2009, Slice Element Method for estimation of load on cylindrical insert in grain silo. 8 Międzynarodowe Warsztaty dla Młodych Naukowców BioPhys Spring 2009, 2009
  54. 2008, Zaburzenia rozkładu naprężenia w materiale sypkim., 2008
  55. 2008, Modelowanie elementarnych oddziaływań w obszarze kontaktu ziaren., 2008
  56. 2008, Method of characterization of distribution of contact normals in 3D granular assembly., 2008
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