Numerical investigations on the thermohydraulic performance of cross-wavy channels with multi-periodic boundary conditions

L. X. Du, T. Ma, M. Zeng, Z. X. Guo, Q. W. Wang

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The multiple periodic boundary conditions were adopted in both the streamwise and transverse directions in a wavelength section of a cross-wave channel to model flow and heat transfer in a primary surface recuperator, as the ratio of amplitude of waviness to channel pitch is greater than 1/4. The channel wall temperature is further modified as a linearly decreasing profile. It is found that as the ratio of the amplitude to channel pitch (A/P) increases, the heat transfer is augmented, but the pressure drop also increases. When the ratio A/P is 0.333, the CW channel has the best overall performance.

Original languageEnglish (US)
Pages (from-to)732-749
Number of pages18
JournalNumerical Heat Transfer; Part A: Applications
Volume65
Issue number8
DOIs
StatePublished - Apr 15 2014

All Science Journal Classification (ASJC) codes

  • Numerical Analysis
  • Condensed Matter Physics

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