摘要
分析了地下水源热泵系统3个物理场之间的耦合作用,利用有限元软件建立了热-流-固三场不完全耦合的数值计算模型;通过对渗流场、温度场、应力场、位移场的分析得出:抽灌水引起的水头差导致的强迫渗流对渗流场的分布起主导作用;土体传热和热对流对温度场的影响远小于渗流的影响;应力场主要有两部分:一是温度变化引起的热膨胀应力;二是地下水的强迫渗流对土骨架的作用力;位移场是应力场的外在表现,规律与应力场基本相似。
Groundwater Heat Source Wells （ GHSW） is a progress of Thermo - Hydro - Mechanical Coupling. This paper analyzed the interactions between the three fields; made a numerical calculation model by finite element software to study the hydrological field, temperature field, stress field and the deformation field. Results showed that,water head differences cased by pumping and recharging is the main factor of effecting the advection field; heat conducting by soil and water is much weaker than convective heat transfer; stress field effected by two aspects ： the first is thermal expansion stress; the second is the force that caused by groundwater advection; deformation field is the external performance of the stress field, so the distribution is similar to the stress field.
作者
王兴
席培胜
吴建佳
李丛蕾
WANG Xing XI Pei - sheng WU Jian - jia LI Cong - lei(Baoding Guangcheng Architectural Design Co. LTD,Baoding 071000, Hebei, China Department of Civil Engineering,Anhui Jianzhu University,Hefei 230601,China Institute of architectural engineering,Shandong Huayu University of Technology,Dezhou 253000,Shandong China Dezhou Highway Survey and Design Institute,Dezhou 253000 Shandong, China)
出处
《建筑节能》
CAS
2017年第6期69-73,108,共6页
BUILDING ENERGY EFFICIENCY
基金
国家自然科学基金资助项目(41372281
41172273)
安徽省住房城乡建设厅科学技术项目(2013YF-52)
关键词
水源热泵
热-流-固耦合
渗流场
温度场
应力场
位移场
groundwater heat source wells （ GHSW）
thermo - hydro - mechanical coupled
advection field
temperature field
stress field
deformation field
