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目的 设计一种用于进行切应力对蓝藻细胞活性影响的相关实验研究装置.方法 针对现有流体切应力实验装置容积小、切应力不稳定、难以进行定量分析和持续性差等缺陷进行设计优化,成功设计出1个有效容积400～700 mL、误差小于13.8％、能产生定量均匀切应力场且可进行至少96 h跟踪观测的切应力发生装置.结果 通过对铜绿微囊藻的实验研究,证实所设计装置产生的切应力可对铜绿微囊藻细胞的活性产生显著的影响.结论 设计的实验装置是进行流体切应力对蓝藻细胞活性影响相关研究的有效仪器.“,”Objective To design a device for studying the effects of shear stress on the activity of blue-green algae.Methods The device was optimized in terms of the weakness of current shear stress devices,such as small volume,unstability,inability for quantitative analysis and short working period.The effective volume of the new device was 400-700 mL,and the error was less than 13.8％.Moreover,this device could produce a quantitative and uniform shear stress field and be continued to follow observation for more than 96 hours.Results By experiment on growth of microcystis aeruginosa,the device was proved to generate shear stress that could significantly affect the activity of microcystis aeruginosa cells.Conclusions This experimental device is an effective equipment for investigating the effects of shear stress on the activity of blue-green algae.