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Comparison of GPU-Based Numerous Particles Simulation and Experiment

GPU 기반 대량입자 거동 시뮬레이션과 실험비교

  • Park, Sang Wook (Graduate School of Mechatronics Engineering, Pukyong Nat'l Univ.) ;
  • Jun, Chul Woong (Graduate School of Mechatronics Engineering, Pukyong Nat'l Univ.) ;
  • Sohn, Jeong Hyun (Department of Mechanical and Automotive Engineering, Pukyong Nat'l Univ.) ;
  • Lee, Jae Wook (Ultimate Manufacturing Technology R&BD Group, Korea Institute of Industrial Technology)
  • 박상욱 (부경대학교 대학원 메카트로닉스공학과) ;
  • 전철웅 (부경대학교 대학원 메카트로닉스공학과) ;
  • 손정현 (부경대학교 기계자동차공학과) ;
  • 이재욱 (한국생산기술연구원)
  • Received : 2014.03.08
  • Accepted : 2014.05.24
  • Published : 2014.07.01

Abstract

The dynamic behavior of numerous grains interacting with each other can be easily observed. In this study, this dynamic behavior was analyzed based on the contact between numerous grains. The discrete element method was used for analyzing the dynamic behavior of each particle and the neighboring-cell algorithm was employed for detecting their contact. The Hertzian and tangential sliding friction contact models were used for calculating the contact force acting between the particles. A GPU-based parallel program was developed for conducting the computer simulation and calculating the numerous contacts. The dam break experiment was performed to verify the simulation results. The reliability of the program was verified by comparing the results of the simulation with those of the experiment.

Keywords

Discrete Element Method;Contact;Dam-Break;Parallel Programming;Particle Dynamics

Acknowledgement

Supported by : 부경대학교

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