| A numerical model representing heat transfer in open-cell metal foam is presented. By comparing the calculated results with experimental ones, the validity of the numerical model is confirmed. Influences of air flow rate, cell spacing as well as cell aspect ratio (ratio of ligand diameter to cell spacing) on heat transfer in open-cell metal foam are examined. Heat flux increases with increase of air flow rate and cell aspect ratio, but it decreases with increase of cell spacing. Solid temperature in foam increases with cell spacing and cell aspect ratio, but it decreases with air flow rate. Gas temperature in foam increases with cell aspect ratio, but it decrease with increase of airflow rate and cell spacing. |
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