Study on the Thermal Insulation Performance of a New Seabed Sediment Fidelity Sampler Based on ANSYS  

作　　者：LIU Guoying LIU Guijie YUAN Weijie 

机构地区：[1]Engineering College, Ocean University of China, Qingdao 266100, P. R. China

出　　处：《Journal of Ocean University of China》2009年第3期277-282,共6页中国海洋大学学报（英文版）

基　　金：supported by The Key Technologies Research and Development Program of Shandong Province (Grant No.2006GG2206013);Foundation Sciences Funds of Qingdao (2007-2-3-15-jch);State Key Laboratory of Ocean Engineering at Shanghai Jiao Tong University (Grant No. XXXX0701)

摘　　要：A new seabed sediment fidelity sampler was developed and its thermal insulation performance was studied and analyzed. The temperature distribution simulation indicated that the sample quality could be insured by using this new sampler. Based on ANSYS10, the temperature finite element model of the sample cylinder was established. According to the law of conservation of energy, the unsteady heat transmit equation of the sampler under solid-liquid coupling condition was derived, then the mathematical model calculation was carried out by using a mixed finite-element finite-difference method, and two thermal insulation methods were used. The simulation was carried out by using the thickness of the thermal insulation layer and heat conductivity as the variable parameters and the temperature distribution of the sampler and related influencing factors were obtained. Optimization analysis was conducted using the simulation data and related parameters and the magnitude ranges of the parameters were obtained that could meet the design temperature requirements. The experimental data and simulation results indicated that the results were in good agreement with the realities, and this sampler might be of value for seabed sediment sampler design and manufacture.A new seabed sediment fidelity sampler was developed and its thermal insulation performance was studied and analyzed. The temperature distribution simulation indicated that the sample quality could be insured by using this new sampler. Based on ANSYS10, the temperature finite element model of the sample cylinder was established. According to the law of conservation of energy, the unsteady heat transmit equation of the sampler under solid-liquid coupling condition was derived, then the mathematical model calculation was carried out by using a mixed finite-element finite-difference method, and two thermal insulation methods were used. The simulation was carried out by using the thickness of the thermal insulation layer and heat conductivity as the variable parameters and the temperature distribution of the sampler and related influencing factors were obtained. Optimization analysis was conducted using the simulation data and related parameters and the magnitude ranges of the parameters were obtained that could meet the design temperature requirements. The experimental data and simulation results indicated that the results were in good agreement with the realities, and this sampler might be of value for seabed sediment sampler design and manufacture.

关 键 词：sea bed sediment SAMPLER ANSYS thermal insulation method temperature field 

分 类 号：X831.01[环境科学与工程—环境工程] P736.21[天文地球—海洋地质]