Predicting natural-convection-dominated phase change problems by control volume unstructured triangular grid: Applications to the melting of pure metal

Journal Article · Fri Feb 20 04:00:00 EST 1998 · Numerical Heat Transfer. Part A, Applications

DOI:https://doi.org/10.1080/10407789808913940· OSTI ID:624105

Hong, Z C; Liou, J H ^[1]

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1. National Central Univ., Chung-Li (Taiwan, Province of China). Dept. of Mechanical Engineering

Control volume methods have recently been developed for fluid flow and heat transfer on unstructured meshes. In this study, the authors extend these methods to implement the solution of natural-convection-dominated melting of gallium by a fixed-grid method. A simple, robust, and reliable explicit numerical method (MAC method) is applied for an unstructured triangular grid. This investigation also applies the implicit SIMPLER method for an unstructured triangular grid. Results obtained from the unstructured triangular grid correlate well with the structured mesh computations and experimental data. Also, the feasibility of applying the triangular grid to complex geometric problems is demonstrated by calculating two different triangular domains.

• Sponsoring Organization: USDOE
• OSTI ID: 624105
• Journal Information: Numerical Heat Transfer. Part A, Applications, Journal Name: Numerical Heat Transfer. Part A, Applications Journal Issue: 3 Vol. 33; ISSN NHAAES; ISSN 1040-7782
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
GALLIUM
MELTING
MESH GENERATION
NATURAL CONVECTION
NUMERICAL SOLUTION