基于Fluent的可吸收缝合线射流喷嘴的流场数值模拟

发布时间：2019-05-12 07:53

【摘要】：为了解决壳聚糖和胶原蛋白可吸收缝合线纺丝成型过程中的喷丝线径控制问题,运用Fluent软件对可吸收缝合线射流喷嘴的流场进行数值模拟。采用Gambit软件建立喷嘴模型,采用Fluent软件仿真喷嘴射流过程,最后通过Tecplot软件分析射流后流体半径尺寸。仿真结果表明:采用控制变量法,当其他条件不变时,射流后流体半径随入口速度的增大而减小,随流体粘度的增大而减小,随流体密度的增大而增大,随喷丝孔尺寸的增大而增大;入口速度和流体粘度单独增大时,射流后流体半径变小的趋势变缓;调整入口速度是喷丝线径控制问题最经济、方便、有效的措施;仿真结果与实测数据的偏差保持在9%以内。
[Abstract]:In order to solve the problem of spinneret diameter control in the spinning process of chitosan and collagen absorbable sutures, the flow field of jet nozzles of absorbable sutures was simulated by Fluent software. The nozzle model is established by Gambit software, and the nozzle jet process is simulated by Fluent software. Finally, the fluid radius size after jet is analyzed by Tecplot software. The simulation results show that when other conditions remain unchanged, the radius of fluid decreases with the increase of inlet velocity, decreases with the increase of fluid viscosity and increases with the increase of fluid density. The size of the spinneret hole increases with the increase of the size of the spinneret hole. When the inlet velocity and fluid viscosity increase separately, the trend of the decrease of the fluid radius after the jet decreases, and the adjustment of the inlet velocity is the most economical, convenient and effective measure for the control of the wire diameter of the jet. The deviation between the simulation results and the measured data is kept within 9%.
【作者单位】：天津工业大学机械工程学院;天津工业大学天津市现代机电装备技术重点实验室;
【基金】：天津市应用基础与前沿技术项目(15JCYBJC19700)
【分类号】：O358

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