【摘要】 本研究根据流体机械液压与气动系统管路内非恒定流动态特性和紊流场数值预测的实际需要,对弯曲管路、异径管路和复杂管路内的脉动油流、直管路内过渡流的动态特性提出了数字计算机仿真模型,对渐扩管内的紊流分别提出了高雷诺数型和近壁低雷诺数型紊流数学模型。更多还原

【Abstract】 Based on the actual reguirement of numerical prediction of unsteady flow dynamic cheracteristic and turbulent flowe field of hydraulic and simulation pneumatic models of pulsating oil flow in curved, different diameter and complicated piplines, and of transition flow in straight pipelinte are presented; and that high Reynolds number model and near-wall low Reynolds number model of turbulent flow in a diffuser are respectively put presented.更多还原