【摘 要】
：
采用k-ε双方程湍流模型,同时考虑壁面粗糙度和颗粒旋转等因素的颗粒随机碰撞模型和颗粒脉动频谱随机轨道(FSRT)模型,对90°方形弯管在不同来流速度、不同粒径、不同挡板位置
【机 构】
：
浙江科技学院,Clarkson University 浙江杭州310012,Potsdam,NY
论文部分内容阅读
采用k-ε双方程湍流模型,同时考虑壁面粗糙度和颗粒旋转等因素的颗粒随机碰撞模型和颗粒脉动频谱随机轨道(FSRT)模型,对90°方形弯管在不同来流速度、不同粒径、不同挡板位置等多个工况下颗粒冲蚀磨损进行了数值模拟和计算分析,进一步了解了弯管内颗粒对壁面的冲蚀磨损特性,较为系统地预测了弯管内易磨损部位及磨损量,为管道防磨提供了可靠的数值依据和理论参考。
The k-ε two-equation turbulence model was used to simulate the 90 ° square elbows at different flow velocities, different particle sizes (particle size distributions), the particle random collision model and particle pulsation spectrum random orbital (FSRT) model considering the factors of wall roughness and particle rotation, , Different baffle positions and other conditions of the erosion and erosion of particles under a number of numerical simulation and calculation and analysis of the elbow to further understand the erosion of particles on the wall erosion characteristics of a more systematic prediction of elbow easy to wear parts and The wear volume provides a reliable numerical basis and theoretical reference for pipeline wear prevention.
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