A comprehensively validated three-step global mechanism for high-fidelity simulation of oblique detonation waves in n-decane–air mixtures
學年 114
學期 1
出版（發表）日期 2025-12-10
作品名稱 A comprehensively validated three-step global mechanism for high-fidelity simulation of oblique detonation waves in n-decane–air mixtures
作品名稱（其他語言）
著者 Yi-Jhen Wu; Jyh-Yuan Chen; Yang-Yao Niu
單位
出版者
著錄名稱、卷期、頁數 Physics of Fluids 37, p. 127132
摘要 This study presents a new three-step global chemical mechanism for n-decane/air combustion, specifically optimized for efficient simulation of oblique detonation waves (ODWs). The parameters in the global mechanism were specially formulated to enable predictions of essential features in ODWs, including ignition delays, heat release distribution, and detonation velocity with substantially reduced computational cost while preserving fidelity. Comprehensive validations are conducted through extensive numerical simulations, supported by direct comparisons with experimental shock tube data and a skeletal mechanism (Skel40). The proposed mechanism was found to demonstrate predictive robustness across a wide range of combustor conditions, spanning initial temperatures from 600 to 1600 K, pressures from 10 to 1000 kPa, and equivalence ratios from 0.5 to 1.6. As demonstrated in two-dimensional simulations of ODWs, the proposed three-step mechanism predicts key features consistent with those from Skel40 but with a 56-fold improvement in computational efficiency. This new capability provides a reliable and convenient alternative for system-level detonation modeling.
關鍵字
語言 en
ISSN
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者 牛仰堯
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/128588 )