메인메뉴바로가기

한양대학교 ERICA 산학협력단

홈으로 바로가기 > 연구정보 > 연구성과 > 금주의 우수논문

연구성과 > 금주의 우수논문

  • 한양대학교 재직중인 전임교원이 출판한 SCIE급 논문중 상위 10%이내 논문 (인문계열 SSCI 상위50%이내)
  • 매주 업데이트
게시글

SCI-E Article

Numerical simulation for dendrite growth in directional solidification using LBM-CA (cellular automata) coupled method
성명 윤종헌 ()
소속 공학대학 기계공학과
캠퍼스
우수선정주 2020년 06월 4째주
Author Lee, Wonjoo (Dept Mech Design Engn); Jeong, Yuhyeong (Dept Mech Design Engn); 윤종헌 (Dept Mech Engn) corresponding author;
Corresponding Author Info Yoon, J (reprint author), Hanyang Univ, Dept Mech Engn, 55 Hanyangdaehak Ro, Ansan 15588, Gyeonggi Do, South Korea.
E-mail 이메일jyoon@hanyang.ac.kr
Document Type Article
Source JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY Volume:49 Issue: Pages:15-24 Published:2020
Times Cited 0
External Information http://dx.doi.org/10.1016/j.jmst.2020.01.047
Abstract To predict the dendrite morphology and microstructure evolution in the solidification of molten metal, numerically, lattice Boltzmann method (LBM) - cellular automata (CA) model has been developed by integrating the LBM to solve the mass transport by diffusion and convection during solidification and the CA to determine the phase transformation with respect to the solid fraction based on the local equilibrium theory. It is successfully validated with analytic solutions such as Lipton-Glicksman-Kurz (LGK) model in static melt, and Oseen-Ivantsov solution under the fluid flow conditions in terms of tip radius and velocity of the dendrite growth. The proposed LBM-CA model does not only describe different types of dendrite formations with respect to various solidification conditions such as temperature gradient and growth rate, but also predict the primary dendrite arm spacing (PDAS) and the secondary dendrite arm spacing (SDAS), quantitatively, in directional solidification (DS) experiment with Ni-based superalloy. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
Web of Science Categories Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering
Funding Ministry of Trade, Industry, and Energy (MOTIE), Korea [N0002598]; National Research Foundation of Korea (NRF) - Korean government [2019R1A2C4070160]
Language English
attached file
리스트