CAJ | 학술논문

以典型工程为研究对象，利用有限元法模拟了地下水源热泵冬季运行造成的低温在运行期和恢复期的迁移和变化规律。通过设定不同地下水坡降，研究了不同坡降对运行期和恢复期温度场的形态、迁移和自然恢复过程的影响。结果表明，温度场形态并不完全呈对称的梨状，形态随自然流场的变化而呈现梨状、扁梨状、椭圆形、橄榄球状等；研究也表明，地下水温度场的恢复需要较长的时间，随地下水坡降的减小，恢复时间加长；温度场的迁移受地下水流场的影响较大，随地下水坡降的增加，温度场会迁移较长的距离。
이전형공정위연구대상，이용유한원법모의료지하수원열빙동계운행조성적저온재운행기화회복기적천이화변화규률。통과설정불동지하수파강，연구료불동파강대운행기화회복기온도장적형태、천이화자연회복과정적영향。결과표명，온도장형태병불완전정대칭적리상，형태수자연류장적변화이정현리상、편리상、타원형、감람구상등；연구야표명，지하수온도장적회복수요교장적시간，수지하수파강적감소，회복시간가장；온도장적천이수지하수류장적영향교대，수지하수파강적증가，온도장회천이교장적거리。
Using numerical simulation, the migration and natural recovery characteristics of lower groundwater temperature field in winter by pump is studied through selecting one typical project. The impact on shape, migration and natural recovery process of temperature field is researched at the pump running and stop stage with different groundwater slope. The results show that the shape of the temperature fields do not always appear as pear shape. It can vary from circle to pear, flat pear, o-val and ruby. The recovery time of groundwater temperature field is longer than expected. With groundwater gradient decrease, the recovery time will lengthen. The migration of temperature field is influenced by groundwater flow field. With the groundwa-ter slope increase, the temperature field will migrate long distances.