强迫对流管道内壁结垢层几何形状的逆运算估计

陳文立; 楊俞青; 李浩榕; J·L·萨拉萨尔

doi:10.3879/j.issn.1000-0887.2011.01.006

强迫对流管道内壁结垢层几何形状的逆运算估计

doi: 10.3879/j.issn.1000-0887.2011.01.006

昆山科技大学机械工程系,台南永康,中国台湾

基金项目: 中国台湾国家科学委员会资助项目(NSC97-2221-E-168-039)

详细信息

作者简介:
陳文立(E-mail:wlchen@mail.ksu.edu.tw);楊俞青,教授(联系人.E-mail:ycyang@mail.ksu.edu.tw).

中图分类号: O369
计量
- 文章访问数: 1677
- HTML全文浏览量: 195
- PDF下载量: 719
- 被引次数: 0
出版历程
- 收稿日期: 2010-08-25
- 修回日期: 2010-11-04
- 刊出日期: 2011-01-15

Inverse Estimation for the Unknown Fouling Geometry on the Inner Wall of a Forced-Convection Pipe

Clean Energy Center, Department of Mechanical Engineering, Kun Shan University, Yung-Kang City, Tainan 710-03, Taiwan, China

摘要

摘要: 利用逆运算法中的共轭梯度法与差异原理，通过测量管壁内的温度，来估算一管流系统内壁结垢层厚度的几何形状．过程中未预先设定结垢层厚度的函数形式．因此，可将这类逆运算问题归类为“函数预测”．逆运算过程的管壁温度测量值，可由直接解法所求得的温度数值来仿真实际的测量温度．并用测量误差来检验逆运算分析的正确性．数值实验结果显示，管内壁结垢层厚度的几何形状可获得极佳的估算值．所提出的技术可用作管路维修的预警系统，当管壁结垢层厚度超出某预先设定值时可适时发出维修警示．
- 逆运算问题 /
- 结垢层 /
- 管流系统 /
- 共轭梯度法
Abstract: A conjugate gradient method based inverse algorithm was applied to estimate the unknown fouling-layer profile on the inner wall of a pipe system using simulated temperature measurements taken within the pipe wall.It was assumed that no prior information was available on the functional form of the unknown profile;hence the procedure was classified as the function estimation in inverse calculation.The temperature data obtained from the direct problem were used to simulate the temperature measurements. The accuracy of the inverse analysis is examined by using simulated exact and inexact temperature measurements.Results show that an excellent estimation on the fouling-layer profile can be obtained for the test case considered.The technique presented can be used in a warning system to call for pipe maintenance when the thickness of fouling exceeds a pre-defined criterion.
- inverse problem /
- fouling layer /
- pipe system /
- conjugate gradient method

HTML全文

参考文献(20)

[1]	Jarny Y, Ozisik M N, Bardon J B. A general optimization method using an adjoint equation for solving multidimensional inverse heat conduction[J]. Int J Heat Mass Transfer, 1991, 34(11): 2911-2919. doi: 10.1016/0017-9310(91)90251-9
[2]	Yang Y C, Chu S S, Chang W J. Thermally-induced optical effects in optical fibers by inverse methodology[J]. J Appl Phys, 2004, 95(9): 5159-5165. doi: 10.1063/1.1690115
[3]	Chen W L, Yang Y C, Lee H L. Inverse problem in determining convection heat transfer coefficient of an annular fin[J]. Energy Conv Manag, 2007, 48(4): 1081-1088.
[4]	Chiang C C, Chou S K. Inverse geometry design problem in optimizing hull surfaces[J]. J Ship Res, 1998, 42(2): 79-85.
[5]	Huang C H, Chen H M. An inverse geometry problem of identifying growth of boundary shapes in a multiple region domain[J]. Numer Heat Transfer A, 1999, 35(4): 435-450. doi: 10.1080/104077899275218
[6]	Park H M, Shin H J. Empirical reduction of modes for the shape identification problems of heat conduction systems[J]. Comput Methods Appl Mech Eng, 2003, 192(15): 1893-1908. doi: 10.1016/S0045-7825(03)00236-6
[7]	Park H M, Shin H J. Shape identification for natural convection problems using the adjoint variable method[J]. J Comput Phys, 2003, 186(1): 198-211. doi: 10.1016/S0021-9991(03)00046-9
[8]	Divo E, Kassab A J, Rodriguez F. An efficient singular superposition technique for cavity detection and shape optimization[J]. Numer Heat Transfer B, 2004, 46(1): 1-30.
[9]	Kwag D S, Park I S, Kim W S. Inverse geometry problem of estimating the phase front motion of ice in a thermal storage system[J]. Inverse Problems in Eng, 2004, 12(1): 1-15. doi: 10.1080/10682760410001633237
[10]	Su C R, Chen C K. Geometry estimation of the furnace inner wall by an inverse approach[J]. Int J Heat Mass Transfer, 2007, 50(19/20): 3767-3773. doi: 10.1016/j.ijheatmasstransfer.2007.02.024
[11]	杨旭东，乔志德. 基于共轭方程法的跨音速机翼气动力优化设计[J]. 航空学报， 2003, 24(1): 1-5.（YANG Xu-dong, QIAO Zhi-de. Optimum aerodynamic design of transonic wing based on adjoint equations method[J]. Acta Aeronautica et Astronautica Sinica, 2003, 24(1): 1-5.（in Chinese））
[12]	(杨旭东，乔志德，朱兵. 基于控制理论和NS方程的气动设计方法研究[J]. 空气动力学学报, 2005, 23(1): 46-51.(YANG Xu-dong, QIAO Zhi-de, ZHU Bing. Aerodynamic design method based on control theory and Navier-Stokes equations[J]. Acta Aerodynamica Sinica, 2005, 23(1): 46-51.（in Chinese））
[13]	Yang Y C, Chang W J. Simultaneous inverse estimation for boundary heat and moisture fluxes of a double-layer annular cylinder with interface resistance[J]. Appl Math Comput, 2006, 176(2): 594-608. doi: 10.1016/j.amc.2005.10.006
[14]	Chen W L, Yang Y C, Lee H L. Estimating the absorptivity in laser processing by inverse methodology[J]. Appl Math Comput, 2007, 190(1): 712-721. doi: 10.1016/j.amc.2007.01.077
[15]	Lee H L, Yang Y C, Chang W J, Wu T S. Estimation of heat flux and thermal stresses in multilayer gun barrel with thermal contact resistance[J]. Appl Math Comput, 2009, 209(2): 211-221. doi: 10.1016/j.amc.2008.12.038
[16]	Alifanov O M, Artyukhin E A. Regularized numerical solution of nonlinear inverse heat-conduction problem[J]. J Eng Phys, 1975, 29(1): 934-938. doi: 10.1007/BF00860643
[17]	Zueco J, Alhama F. Simultaneous inverse determination of temperature-dependent thermophysical properties in fluids using the network simulation method[J]. Int J Heat Mass Transfer, 2007, 50(15/16): 3234-3243. doi: 10.1016/j.ijheatmasstransfer.2007.01.004
[18]	Alifanov O M. Inverse Heat Transfer Problems[M]. New York: Springer-Verlag, 1994.
[19]	Alifanov O M. Application of the regularization principle to the formulation of approximate solution of inverse heat conduction problem[J]. J Eng Phys, 1972, 23(6): 1566-1571. doi: 10.1007/BF00826526
[20]	Lien F S, Chen W L, Leschziner M A. A multiblock implementation of a non-orthogonal, collocated finite volume algorithm for complex turbulent flows[J]. Int J Numer Methods Fluids, 1996, 23(6): 567-588. doi: 10.1002/(SICI)1097-0363(19960930)23:6<567::AID-FLD443>3.0.CO;2-A

施引文献

资源附件(0)

访问统计

计量

文章访问数: 1677
HTML全文浏览量: 195
PDF下载量: 719
被引次数: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

留言板

强迫对流管道内壁结垢层几何形状的逆运算估计

doi: 10.3879/j.issn.1000-0887.2011.01.006

作者简介:
陳文立(E-mail:wlchen@mail.ksu.edu.tw);楊俞青,教授(联系人.E-mail:ycyang@mail.ksu.edu.tw).

计量

Inverse Estimation for the Unknown Fouling Geometry on the Inner Wall of a Forced-Convection Pipe

计量

目录

留言板

强迫对流管道内壁结垢层几何形状的逆运算估计

doi: 10.3879/j.issn.1000-0887.2011.01.006

作者简介: 陳文立(E-mail:wlchen@mail.ksu.edu.tw);楊俞青,教授(联系人.E-mail:ycyang@mail.ksu.edu.tw).

计量

出版历程

Inverse Estimation for the Unknown Fouling Geometry on the Inner Wall of a Forced-Convection Pipe

计量

出版历程

目录

作者简介:
陳文立(E-mail:wlchen@mail.ksu.edu.tw);楊俞青,教授(联系人.E-mail:ycyang@mail.ksu.edu.tw).