Mobile QR Code QR CODE : Korean Journal of Air-Conditioning and Refrigeration Engineering
Korean Journal of Air-Conditioning and Refrigeration Engineering

Korean Journal of Air-Conditioning and Refrigeration Engineering

ISO Journal TitleKorean J. Air-Cond. Refrig. Eng.
  • Open Access, Monthly
Open Access Monthly
  • ISSN : 1229-6422 (Print)
  • ISSN : 2465-7611 (Online)
Title Numerical Study on Slanted Cubical-Cavity Natural Convection
Authors 명현국 ; 김종은
Page pp.722-728
ISSN 12296422
Keywords Numerical study ; 수치적 연구 ; Natural convection ; 자연대류 ; Slanted cubical cavity ; 경사진 3차원 정육면체 캐비티 ; Diamond type orientation ; 다이아몬드형 기울기 ; Rayleigh number ; Ra수 ; Unstructured cell-centered method ; 비정렬 셀 중심 방법 ; Benchmark solution ; 검증용 해 ; Nusselt number ; Nu수
Abstract Natural convection flows in a cubical air-filled slanted cavity that has one pair of opposing faces isothermal at different temperatures, and, respectively, the remaining four faces having a linear variation from to are numerically simulated by a solution code(PowerCFD) using unstructured cell-centered method. Special attention is paid to three- dimensional flow and thermal characteristics according to a new orientation(diamond type) for the cubical-cavity benchmark problem in natural convection. Comparisons of the average Nusselt number at the cold face are made with experimental benchmark solutions found in the literature. It is found that the code is capable of producing accurately the nature of the laminar convection in a cubical air-filled slanted cavity with differentially heated walls.