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【中文摘要】 对天花板内藏直吹式空调器测试房间为模型,应用AirPak软件在制冷运行时不同送风参数下的流场和温度场进行了数值模拟。并以温度不均匀系数、速度不均匀系数和能量利用系数作为气流组织评价指标。结果表明:相同风量下,送风角度越小,室内温度和速度越均匀,能量利用越好;相同送风角度下,风量越大,室内温度和速度越均匀,能量利用越好。 【英文摘要】 The paper takes ceiling containing blowing straight type indoor unit as research object, numerical simulation through AirPak software was carried out to study the distribution characteristics of airflow temperature field under different air supply condition refrigeration. It takes the temperature nonuniformity coefficient, speed nonuniformity coefficient, and energy utilization coefficient as the air current organization evaluating indicator. The result shows: the small the blast angle, the more uniformity of indoor temperature and speed, the better energy utilization under the same air volume; the large the air volume, the more uniformity of indoor temperature and speed, the better energy utilization under the same blast angle. 【中文关键词】 室内机; 送风参数; 气流组织; 数值模拟 【英文关键词】 Indoor unit; Supply parameters; Air current distribution; Numerical simulatio