Field measurement on distribution of convective heat transfer coefficient within a real-scale urban canopy

Aya Hagishima, Ken Ichi Narita, Hirofumi Sugawara, Jun Tanimoto

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A field measurement on thermal balance and flow characteristics of a full-scale 2D canopy was done, and following phenomena were observed. 1) Air temperature distribution and sensible heat flux of canopy surfaces show the high irregularity due to the sunshade. 2) Linear relationships exist between wind speed Uim and convective heat transfer coefficient (CHTC) of most measurement points. The linear regressions of SAT meters fixed on a leeward wall show similar tendency, in contrast those on a windward wall vary with the position. This tendency is consistent with those of former wind tunnnel experiments. 3) CHTCs of walls deduced from measurement result of surface thermal balance show different tendency of those of SAT meters. It may be caused by the effect of the unhomogeneous temperature distribution of canopy.

Original languageEnglish
Pages (from-to)511-518
Number of pages8
JournalJournal of Environmental Engineering (Japan)
Volume73
Issue number626
DOIs
Publication statusPublished - Apr 2008

All Science Journal Classification (ASJC) codes

  • Environmental Engineering

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