Simulation of nonpremixed turbulent hydrogen-air flame in a dump combustor

Ching Shun Chen, Keh-Chin Chang

Research output: Contribution to journalArticlepeer-review

Abstract

The nonpremixed turbulent H2-air reacting flow in a dump combustor is numerically investigated. The comprehensive model representing the turbulent combustion process in a dump combustor requires a group of submodels including turbulence, chemistry, thermal radiation, turbulence/combustion interactions, etc. Seven models which are constructed from different submodels of turbulence, chemistry and pdf with and without consideration of thermal radiation are systematically tested in the work. The study reveals that the employment of more sophisticated submodels such as the hybrid k - ε turbulence submodel and the β pdf in the comprehensive model gives, to a certain degree, satisfactory predictions, but it should paid more computational effort in calculation. However, other chemistry submodel suitable for the condition investigated is required in the modeling work to further improve the accuracy of the predictions.

Original languageEnglish
Pages (from-to)305-315
Number of pages11
JournalJournal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Engineers, Series C/Chung-Kuo Chi Hsueh Kung Ch'eng Hsuebo Pao
Volume16
Issue number4
Publication statusPublished - 1995 Aug 1

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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