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首页> 外文期刊>Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics >Thermohydraulics of laminar flow through a circular tube having integral helical rib roughness and fitted with centre-cleared twisted-tape
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Thermohydraulics of laminar flow through a circular tube having integral helical rib roughness and fitted with centre-cleared twisted-tape

机译:层流的热工液压油流经圆管,圆管具有完整的螺旋肋粗糙度,并装有中心清理的扭曲带

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摘要

The experimental friction factor and Nusselt number data for laminar flow through a circular duct having integral helical rib roughness and fitted with centre-cleared twisted-tape have been presented. Predictive friction factor and Nusselt number correlations have also been presented. The thermohydraulic performance has been evaluated. The major findings of this experimental investigation are that the centre-cleared twisted tapes in combination with integral helical rib roughness perform significantly better than the individual enhancement technique acting alone for laminar flow through a circular duct up to a certain amount of twisted-tape centre-clearance.
机译:已经给出了层流通过具有整体螺旋肋粗糙度并装有中心间隙扭曲带的圆形管道的实验摩擦因数和努塞尔数数据。还提出了预测摩擦系数和Nusselt数的相关性。已经评估了热工液压性能。该实验研究的主要发现是,与单独使用的增强技术相比,中心清理的扭曲带与整体螺旋肋粗糙度的结合性能明显优于单独使用的增强技术,该技术单独作用于层流通过圆形管道直到一定数量的扭曲带中心。清除。

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