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Chaotic Advection and Varying Buoyant Flows for Dispersed Fire-Flake Simulations

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2023, 28(6), pp.31-38
  • DOI : 10.9708/jksci.2023.28.06.031
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science
  • Received : May 8, 2023
  • Accepted : June 12, 2023
  • Published : June 30, 2023

Jong-Hyun Kim 1

1인하대학교

Accredited

ABSTRACT

In this paper, we propose a chaotic advection method and various buoyant flow techniques to efficiently simulate distributed flame flows with flame behavior. Spark particles not only exhibit unique and complex behavior, but also are affected by the flame motion and the surrounding air. The motion of sparks tends to be chaotic and constantly changing, making it difficult for users to realistically model the motion of sparks. Instead of explicitly modeling the complex spark particles represented in a flame based on hydrodynamics, this paper efficiently approximates the complex motion of chaotic sparks through 1) a chaotic migration method and 2) a buoyant flow with a controlled size that varies with the temperature and age of the spark particles. For the flame migration process, a novel stochastic solver is used to compute the subgrid interactions between flame particles. The proposed method can efficiently simulate disordered spark particles in chaotic domains and provides a more detailed representation of spark particles than existing methods.

Citation status

* References for papers published after 2022 are currently being built.

This paper was written with support from the National Research Foundation of Korea.