云芝菌丝三相悬浮液流变特性研究

云芝真菌在摇瓶里进行液体悬浮培养，使用ＮＤＪ－２Ｇ（改）对菌丝悬浮液液固两相体系进行精确测量表明：该体系具有Ｂｉｎｇｈａｍ液体行为．将无菌空气通入该体系，用４５３５－１型旋转圆盘粘度计（ＲＤＶ）再行测量发现：云芝气液固三相体系仍具有Ｂｉｎｇｈａｍ行为．用数值方法对测量结果分析表明：三相体系与原两相体系相比，随着气含率增加，其屈服剪应力有显著降低，但其塑性粘度却有较小增加．

Study of rheological property of GLS three-phase polystictus versicolor mycelia suspension

Polystictus versicolor is cultivated in shaking flasks.The accurate measurement by using a refitted NKJ-2G type of rotating cylinder viscometer indicates that the liquid-solid two-phase system of the mycelial suspension has Bingham rheological behaviour.Blending the suspension with aseptic air and measuring the rheological property by a rotating disk viscometer(model 4535-1)again, it is discoverd that the gas-liquid-solid three-phase system also has Bingham behaviour. The results by numerical analyses show apparently that when the voidage increases,the yield shear stress decreases a lot,but the plastic viscositv has a little bit increase.