A Priori Assessment of Algebraic Flame Surface Density Models in the Context of Large Eddy Simulation for Nonunity Lewis Number Flames in the Thin Reaction Zones Regime
المؤلفون المشاركون
Katragadda, Mohit
Chakraborty, Nilanjan
Cant, R. S.
المصدر
العدد
المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-17، 17ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-09-06
دولة النشر
مصر
عدد الصفحات
17
التخصصات الرئيسية
الملخص EN
The performance of algebraic flame surface density (FSD) models has been assessed for flames with nonunity Lewis number (Le) in the thin reaction zones regime, using a direct numerical simulation (DNS) database of freely propagating turbulent premixed flames with Le ranging from 0.34 to 1.2.
The focus is on algebraic FSD models based on a power-law approach, and the effects of Lewis number on the fractal dimension D and inner cut-off scale ηi have been studied in detail.
It has been found that D is strongly affected by Lewis number and increases significantly with decreasing Le.
By contrast, ηi remains close to the laminar flame thermal thickness for all values of Le considered here.
A parameterisation of D is proposed such that the effects of Lewis number are explicitly accounted for.
The new parameterisation is used to propose a new algebraic model for FSD.
The performance of the new model is assessed with respect to results for the generalised FSD obtained from explicitly LES-filtered DNS data.
It has been found that the performance of the most existing models deteriorates with decreasing Lewis number, while the newly proposed model is found to perform as well or better than the most existing algebraic models for FSD.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Katragadda, Mohit& Chakraborty, Nilanjan& Cant, R. S.. 2012. A Priori Assessment of Algebraic Flame Surface Density Models in the Context of Large Eddy Simulation for Nonunity Lewis Number Flames in the Thin Reaction Zones Regime. Journal of Combustion،Vol. 2012, no. 2012, pp.1-17.
https://search.emarefa.net/detail/BIM-498690
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Katragadda, Mohit…[et al.]. A Priori Assessment of Algebraic Flame Surface Density Models in the Context of Large Eddy Simulation for Nonunity Lewis Number Flames in the Thin Reaction Zones Regime. Journal of Combustion No. 2012 (2012), pp.1-17.
https://search.emarefa.net/detail/BIM-498690
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Katragadda, Mohit& Chakraborty, Nilanjan& Cant, R. S.. A Priori Assessment of Algebraic Flame Surface Density Models in the Context of Large Eddy Simulation for Nonunity Lewis Number Flames in the Thin Reaction Zones Regime. Journal of Combustion. 2012. Vol. 2012, no. 2012, pp.1-17.
https://search.emarefa.net/detail/BIM-498690
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-498690
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر