ANALYSIS AND EXPERIMENT OF NON-DARCIAN CONVECTION IN HORIZONTAL SQUARE PACKED-SPHERE CHANNELS .1. FORCED-CONVECTION

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題名:	ANALYSIS AND EXPERIMENT OF NON-DARCIAN CONVECTION IN HORIZONTAL SQUARE PACKED-SPHERE CHANNELS .1. FORCED-CONVECTION
作者:	CHOU,FC;LIEN,WY;LIN,SH
貢獻者:	機械工程學系
關鍵詞:	VARIABLE-POROSITY MEDIA;BOUNDARY-LAYER FLOW;HEAT-TRANSFER;POROUS-MEDIUM;THERMAL DISPERSION;FLAT-PLATE;BED;INERTIA
日期:	1992
上傳時間:	2010-06-29 18:08:35 (UTC+8)
出版者:	中央大學
摘要:	A numerical and experimental investigation of non-Darcian forced convection in horizontal square packed-sphere channels is presented. The theoretical results are found to be in agreement with the experimental results. The values of the fully-developed Nusselt number are influenced mainly by the channelling effect when the Peclet number is small, but the thermal dispersion effect becomes dominant when the Peclet number is high. The effect of thermal dispersion on heat transfer is rather weak in the near entrance region but becomes relatively significant in the thermally fully-developed region. The ratio of equivalent hydraulic diameter to sphere diameter, D(e)/d, significantly affects the Nusselt numbers when the Peclet number is high: it is caused again mainly by the thermal dispersion effect.
關聯:	INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
顯示於類別:	[機械工程研究所] 期刊論文

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