充分发展湍流管道内壁边界的红外定量识别
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摘要
基于导热的管道内壁边界识别已发展成熟,但更贴合实际的湍流管道内壁边界的定量识别尚未见报道。通过关联COMSOL和MATLAB,利用有限元方法和Levenberg-Marquardt算法对二维轴对称充分发展的湍流管道内壁边界形状的稳态识别进行研究。数值实验证明了本方法的有效性。结果表明,在含内壁缺陷的湍流管道中,外壁最大温差和由缺陷引起的绝对温差并不是同步增加的;在进行内壁边界反问题识别时,由于绝对温差中负增长的出现,绝对温差越大,识别结果未必越好;识别精度在不规则内壁终点处略微变差。
Although the identification of pipelines′ inner boundary based on heat conduction has been matured, the quantitative identification of inner boundary of turbulent pipe, which is more practical, has scarcely been reported yet. The steady-state identification of the inner boundary shape of a turbulent pipe with fully developed two-dimensional axial symmetry was studied through the connection of COMSOL and MATLAB, as well as the use of finite element method and Levenberg-Marquardt method. The validity of this method was proved by numerical experiments. The results show that, in a turbulent pipeline with a defective inner boundary, the maximum temperature difference of outer wall and the absolute temperature difference caused by defect do not increase synchronously. During the identification of inverse inner boundary problem, due to the negative growth in the absolute temperature difference, the identification results do not necessarily improve with the increase of absolute temperature difference. The identification accuracy slightly deteriorates at the end of the irregular inner boundary.
Although the identification of pipelines′ inner boundary based on heat conduction has been matured, the quantitative identification of inner boundary of turbulent pipe, which is more practical, has scarcely been reported yet. The steady-state identification of the inner boundary shape of a turbulent pipe with fully developed two-dimensional axial symmetry was studied through the connection of COMSOL and MATLAB, as well as the use of finite element method and Levenberg-Marquardt method. The validity of this method was proved by numerical experiments. The results show that, in a turbulent pipeline with a defective inner boundary, the maximum temperature difference of outer wall and the absolute temperature difference caused by defect do not increase synchronously. During the identification of inverse inner boundary problem, due to the negative growth in the absolute temperature difference, the identification results do not necessarily improve with the increase of absolute temperature difference. The identification accuracy slightly deteriorates at the end of the irregular inner boundary.
引文
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[15] Chen W L,Yang Y C.Inverse estimation for the unknown frost geometry on the external wall of a forced-convection pipe[J].Energy Conversion and Management,2011,50(6):1457-1464.
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[19] Ren Y,Cai W H,Chen J,et al.Numerical study on the shell-side flow and heat transfer of superheated vapor flow in spiral wound heat exchanger under rolling working conditions[J].International Journal of Heat and Mass Transfer,2018,121:691-702.
[20] 陈晓明,冀宏,张硕文,等.基于COMSOL的滑阀流固耦合共轭传热仿真研究[J].液压与气动,2017(5):35-40.CHEN Xiaoming,JI Hong,ZHANG Shuowen,et al.The simulation investigation on fluid-solid coupled conjugate heat transfer for spool valve based on COMSOL[J].Chinese Hydraulics & Pneumatics,2017(5):35-40.(in Chinese)
[21] Jakkareddy P S,Balaji C.A non-intrusive technique to determine the spatially varying heat transfer coefficients in a flat plate with flush mounted heat sources[J].International Journal of Thermal Sciences,2018,131:144-159.
[22] 陈林,杨立,范春利,等.热障涂层厚度及其涂敷下材料内部缺陷的红外定量识别[J].国防科技大学学报,2016,38(1):107-113.CHEN Lin,YANG Li,FAN Chunli,et al.Infrared quantitative identification for thickness and material inner defects of thermal barrier coating[J].Journal of National University of Defense Technology,2016,38(1):107-113.(in Chinese)
[23] 梅宁,焦思.基于工程反问题的圆管湍流流体热物性参数反演[J].中国海洋大学学报(自然科学版),2014,44(10):142-147.MEI Ning,JIAO Si.A research on identifying thermophysical of pipe turbulence fluid by inverse heat transfer problem[J].Periodical of Ocean University of China(Natural Science),2014,44(10):142-147.(in Chinese)
[24] Ozisik M N.Inverse heat transfer:fundamentals and applications[M].Britain,UK:CRC Press,2000.
[2] 徐志远,林章鹏,袁湘民,等.管道弯头缺陷检测外置式远场涡流探头设计[J].仪器仪表学报,2017,38(5):1119-1125.XU Zhiyuan,LIN Zhangpeng,YUAN Xiangmin,et al.External remote field eddy current probe for defect detection at pipe elbows[J].Chinese Journal of Scientific Instrument,2017,38(5):1119-1125.(in Chinese)
[3] 杨理践,郭天昊,高松巍,等.油气管道特殊部件的漏磁检测信号特征分析[J].沈阳工业大学学报,2017,39(1):43-47.YANG Lijian,GUO Tianhao,GAO Songwei,et al.Feature analysis on magnetic leakage detection signal for special parts of oil and gas pipeline[J].Journal of Shenyang University of Technology,2017,39(1):43-47.(in Chinese)
[4] 张林,范春利,孙丰瑞,等.基于APDL的管道内壁边界识别算法[J].红外与激光工程,2015,44(5):1477-1484.ZHANG Lin,FAN Chunli,SUN Fengrui,et al.Identification algorithm of pipelines′ inner boundary based on APDL[J].Infrared and Laser Engineering,2015,44(5):1477-1484.(in Chinese)
[5] 张宏鹏,丁克勤,薛彬,等.复合材料气瓶分层缺陷的红外检测数值模拟[J].武汉工程大学学报,2016,38(6):583-587.ZHANG Hongpeng,DING Keqin,XUE Bin,et al.Numerical simulation of delamination defect of composite cylinder by infrared detection[J].Journal of Wuhan Institute of Technology,2016,38(6):583-587.(in Chinese)
[6] 侯旺,钟立军,张小虎,等.红外目标分割方法研究[J].国防科技大学学报,2013,35(2):173-178.HOU Wang,ZHONG Lijun,ZHANG Xiaohu,et al.Research on infrared target segmentation[J].Journal of National University of Defense Technology,2013,35(2):173-178.(in Chinese)
[7] 周正干,贺鹏飞,赵翰学,等.钛合金蜂窝结构蒙皮脱焊缺陷锁相红外热成像检测[J].北京航空航天大学学报,2016,42(9):1795-1802.ZHOU Zhenggan,HE Pengfei,ZHAO Hanxue,et al.Detection of skin desoldering defect in Ti-alloy honeycomb structure using lock-in infrared thermography test[J].Journal of Beijing University of Aeronautics and Astronautics,2016,42(9):1795-1802.(in Chinese)
[8] 李斌,刘林华.基于双倒易边界元法的非稳态导热几何边界识别[J].中国电机工程学报,2009,29(5):66-71.LI Bin,LIU Linhua.Geometry boundary identification of unsteady heat conduction based on dual reciprocity boundary element method[J].Proceedings of the CSEE,2009,29(5):66-71.(in Chinese)
[9] Wang G J,Lü C,Chen H,et al.A multiple model adaptive inverse method for nonlinear heat transfer system with temperature-dependent thermophysical properties[J].International Journal of Heat and Mass Transfer,2018,118:847-856.
[10] 陈闽慷,杜涛,苏雪,等.二维非线性正交各向异性材料的瞬态热传导反问题数值方法[J].国防科技大学学报,2017,39(1):194-198.CHEN Minkang,DU Tao,SU Xue,et al.A numerical method for two-dimensional nonlinear transient inverse heat conduction problems for orthotropic material[J].Journal of National University of Defense Technology,2017,39(1):194-198.(in Chinese)
[11] 韩雯雯,卢涛.基于共轭梯度法的圆管内部流体温度识别[J].工程热物理学报,2015,36(2):371-375.HAN Wenwen,LU Tao.Estimating fluid temperature of pipe by using conjugate gradient method[J].Journal of Engineering Thermophysics,2015,36(2):371-375.(in Chinese)
[12] Min C H,Li X L,Yuan Y W,et al.An inverse study to optimize the rib pitch in a two-dimensional channel flow problem for heat transfer enhancement[J].International Journal of Heat and Mass Transfer,2017,112:1044-1051.
[13] Vanderveer J R,Jaluria Y.Solution of an inverse convection problem by a predictor-corrector approach[J].International Journal of Heat and Mass Transfer,2013,65:123-130.
[14] Naveira-Cotta C P,Cotta R M,Orlande H R B.Inverse analysis of forced convection in micro-channels with slip flow via integral transforms and Bayesian inference[J].International Journal of Thermal Sciences,2010,49(6):879-888.
[15] Chen W L,Yang Y C.Inverse estimation for the unknown frost geometry on the external wall of a forced-convection pipe[J].Energy Conversion and Management,2011,50(6):1457-1464.
[16] Chen W L,Yang Y C.Inverse estimation for unknown fouling-layer profiles with arbitrary geometries on the inner wall of a forced-convection duct[J].International Journal of Thermal Sciences,2010,49(1):86-98.
[17] Rouizi Y,Maillet D,Jannot Y,et al.Inverse convection in a flat mini-channel:towards estimation of fluid bulk temperature distribution with infrared thermography[J].Journal of Physics Conference Series,2012,395(1):012070.
[18] 肖丹,师奕兵,黄博.基于远场涡流法的管道缺陷识别的有限元仿真研究[J].测控技术,2012,31(5):131-135.XIAO Dan,SHI Yibing,HUANG Bo.Finite element research of defects detection in pipeline based on remote field eddy current[J].Measurement and Control Technology,2012,31(5):131-135.(in Chinese)
[19] Ren Y,Cai W H,Chen J,et al.Numerical study on the shell-side flow and heat transfer of superheated vapor flow in spiral wound heat exchanger under rolling working conditions[J].International Journal of Heat and Mass Transfer,2018,121:691-702.
[20] 陈晓明,冀宏,张硕文,等.基于COMSOL的滑阀流固耦合共轭传热仿真研究[J].液压与气动,2017(5):35-40.CHEN Xiaoming,JI Hong,ZHANG Shuowen,et al.The simulation investigation on fluid-solid coupled conjugate heat transfer for spool valve based on COMSOL[J].Chinese Hydraulics & Pneumatics,2017(5):35-40.(in Chinese)
[21] Jakkareddy P S,Balaji C.A non-intrusive technique to determine the spatially varying heat transfer coefficients in a flat plate with flush mounted heat sources[J].International Journal of Thermal Sciences,2018,131:144-159.
[22] 陈林,杨立,范春利,等.热障涂层厚度及其涂敷下材料内部缺陷的红外定量识别[J].国防科技大学学报,2016,38(1):107-113.CHEN Lin,YANG Li,FAN Chunli,et al.Infrared quantitative identification for thickness and material inner defects of thermal barrier coating[J].Journal of National University of Defense Technology,2016,38(1):107-113.(in Chinese)
[23] 梅宁,焦思.基于工程反问题的圆管湍流流体热物性参数反演[J].中国海洋大学学报(自然科学版),2014,44(10):142-147.MEI Ning,JIAO Si.A research on identifying thermophysical of pipe turbulence fluid by inverse heat transfer problem[J].Periodical of Ocean University of China(Natural Science),2014,44(10):142-147.(in Chinese)
[24] Ozisik M N.Inverse heat transfer:fundamentals and applications[M].Britain,UK:CRC Press,2000.