环形双圈管冻结稳态温度场广义解析解

发布时间：2018-03-20 20:15

  本文选题：人工地层冻结法　切入点：环形双圈冻结管　出处：《煤炭学报》2017年09期 　论文类型：期刊论文

【摘要】：对于环形布管冻结稳态温度场的解,目前仅有单圈管冻结条件下的解析解,对于双圈管冻结尚无解答。首先建立环形双圈管冻结稳态温度场的模型。然后,应用保角变换将广义环形双圈管(冻结圈内部未冻实)模型变换为直线型排布的模型,依据调和方程边界可分离性,将直线型排布模型分解为2个特殊单排管冻结问题,从而得到广义环形双圈管的温度场解析解。最后,应用ANSYS进行了热力学数值模拟计算和物理模型实验结果以验证解析解。结果表明:在冻土帷幕充分交圈后,数值模拟结果和解析解结果基本一致,与实测温度的吻合度也很高。
[Abstract]:For the solution of the steady state temperature field of annular tube freezing, there is only an analytical solution under the condition of single loop tube freezing, and no solution is given for the double loop tube freezing. Firstly, a model of freezing steady state temperature field of ring double loop tube is established. Then, the model of freezing steady state temperature field of ring double loop tube is established. In this paper, the conformal transformation is used to transform the generalized circular double-loop tube (unfrozen solid inside the frozen ring) model into a linear arrangement model. According to the boundary separability of harmonic equations, the linear arrangement model is decomposed into two special single-row pipe freezing problems. The analytical solution of the temperature field of a generalized circular double-loop tube is obtained. Finally, the thermodynamic numerical simulation and physical model experiment results of ANSYS are used to verify the analytical solution. The results show that: after the frozen earth curtain is fully intersected, The numerical simulation results are in good agreement with the analytical solution, and the agreement with the measured temperature is also very high.
【作者单位】： 同济大学地下建筑与工程系;同济大学岩土及地下工程教育部重点实验室;上海市隧道股份有限公司;
【基金】：国家自然科学基金资助项目(51478340) 浙江省自然科学基金资助项目(LZ13E080002) 交通运输部建设科技资助项目(2013318J11300)
【分类号】：TD265.3
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本文编号：1640632