【摘要】 使用三种强化器，在矩形通道内进行受迫对流实验。整个实验是在ＲｅＤ＝２．２×１０３～６．２５×１０３范围内进行的。根据每种强化器的实验数据，关联出相应的经验公式ＮｕＤ＝ｃＲｅＦｍ，对各种强化器的强化特性进行了研究；并利用强化比ＮｕＤ／ＮｕＤ。对三种强化器的强化效果进行比较，实验结果表明：深齿强化器优于浅齿，浅齿优于孔板强化器。更多还原

【Abstract】 Three types of enhanced promoters were tested for forced convection heat transfer in a rectangular channel. Heat transfer characteristics were measured for the liquid with the range of reynlods between 2.2 ×103 and 6.25×103. Thress types of turbulence promoters, ete perforated ribi-type. shallow serrated rib-type. deep serrated rib-type were tested. Performance comparison was made of the heat transfer ability of the enhanced surfaces with turbulence promoters under the condition of constant blower power. It was found that the surfaces with shallow serated rib-type tubulence promoters showed better and the surfaces with depth serrated rib-type turbulence promoters showed best excellent performace.更多还原