【摘要】：為了解決殼聚糖和膠原蛋白可吸收縫合線紡絲成型過(guò)程中的噴絲線徑控制問(wèn)題,運(yùn)用Fluent軟件對(duì)可吸收縫合線射流噴嘴的流場(chǎng)進(jìn)行數(shù)值模擬。采用Gambit軟件建立噴嘴模型,采用Fluent軟件仿真噴嘴射流過(guò)程,最后通過(guò)Tecplot軟件分析射流后流體半徑尺寸。仿真結(jié)果表明:采用控制變量法,當(dāng)其他條件不變時(shí),射流后流體半徑隨入口速度的增大而減小,隨流體粘度的增大而減小,隨流體密度的增大而增大,隨噴絲孔尺寸的增大而增大;入口速度和流體粘度單獨(dú)增大時(shí),射流后流體半徑變小的趨勢(shì)變緩;調(diào)整入口速度是噴絲線徑控制問(wèn)題最經(jīng)濟(jì)、方便、有效的措施;仿真結(jié)果與實(shí)測(cè)數(shù)據(jù)的偏差保持在9%以內(nèi)。
[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%.
【作者單位】： 天津工業(yè)大學(xué)機(jī)械工程學(xué)院;天津工業(yè)大學(xué)天津市現(xiàn)代機(jī)電裝備技術(shù)重點(diǎn)實(shí)驗(yàn)室;
【基金】：天津市應(yīng)用基礎(chǔ)與前沿技術(shù)項(xiàng)目(15JCYBJC19700)
【分類號(hào)】：O358

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