Three-dimensional pipe fouling layer estimation by using conjugate gradient inverse method

Wen Lih Chen, Yu Ching Yang, Haw Long Lee

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


In this study, a conjugate gradient method based inverse algorithm is applied to estimate the unknown three-dimensional fouling-layer profiles on the inner wall of a piping system using simulated temperature measurements taken on the pipe wall. The temperature data obtained from the direct problem are used to simulate the exact temperature measurements. Results show that an excellent estimation on the fouling-layer profiles can be obtained for the two cases investigated in this study. The technique presented here can be used as an alternative to ultrasonic waves fouling detection techniques to provide crucial information for the optimization of cleaning schedule for piping systems.

Original languageEnglish
Pages (from-to)845-865
Number of pages21
JournalNumerical Heat Transfer; Part A: Applications
Issue number9
Publication statusPublished - 2009

All Science Journal Classification (ASJC) codes

  • Numerical Analysis
  • Condensed Matter Physics


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