【摘要】 考虑到ICU病房内医护人员走动的情况，运用FLUENT软件，采用动网格方法对某ICU病房内医护人员进行走动程序的设置，并对医护人员走动所引起的气流变化进行数值模拟。研究结果表明，ICU病房内医护人员的走动主要对医护人员尾部区域有一定影响，影响区域约为人体3倍身宽，使尾部区域气流速度以及颗粒物浓度较大，并且其气流速度与医护人员走动速度几乎保持一致；医护人员走动对病患区域影响较小，当医护人员接近病患时和在ICU病房内呼吸机和药品桌等医用设备附近时，由于走动引起的气流带动医用设备的颗粒物扬起扩散至病患附近。更多还原

【Abstract】 Considering that there will be medical staff walking in ICU Wards, the moving grid method is used to set the walking program of medical staff in an ICU ward by using FLUENT software, and the air flow change caused by medical staff walking is numerically simulated. The results show that the movement of TCM nurses in ICU ward mainly has a certain impact on the tail area of medical workers. The affected area is about three times the body width of human body, which makes the air velocity and particle concentration in the tail area larger, and its airflow speed is almost consistent with the walking speed of medical staff.The movement of the medical staff has little impact on the patient area. When the medical staff is close to the patient and near the ventilator, medicine table and other medical equipment in the ICU ward, the airflow caused by the movement drives the particles of the medical equipment to rise and spread to the patient.更多还原