Calculation of surface heat transfer for a sphere with wall injection

Yoshinori Izawa, Keisuke Sawada

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


A computational fluid dynamics method is developed to calculate heat-transfer rate for a sphere with wall injection in hypersonic flow. Attention is paid to exploring the enhanced heat-transfer rate by wall injection. The concept of injection-induced turbulence effect is employed in which the injection flow is assumed to be inherently turbulent. A detailed comparison of the calculated heat-transfer distributions with existing experimental data is carried out. Although the quantitative agreement is not yet accomplished for the entire wall surface, the enhanced heat-transfer rate at the stagnation point is well reproduced, and the higher heating rate in the downstream region is indicated in the calculated results.

Original languageEnglish
Pages (from-to)230-236
Number of pages7
JournalJournal of thermophysics and heat transfer
Issue number2
Publication statusPublished - 2000 Jan 1

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes
  • Space and Planetary Science


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