Probability Density Function in Low Damköhler Number Reacting Zone

作     者：Bounif, A. Said, A. Senouci, M. Gokalp, I. 

作者机构：Univ Ain Temouchent Belhadj Bouchaib Fac Sci & Technol Mech Engn Lab BP 284 Ain Temouchent 46000 Algeria Ecole Super Genie Elect & Energet Oran ESG2E Dept Energet St Hubert Oran Algeria Lab Combust & Syst React Dept Genie Mecan Orleans France 

出 版 物：《COMBUSTION SCIENCE AND TECHNOLOGY》 (Combust Sci Technol)

年 卷 期：2024年

核心收录：

学科分类：0820[工学-石油与天然气工程] 080702[工学-热能工程] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 

主　　题：Distributed reaction zone turbulence modeling low Damk & ouml hler number premixed flame probability density function jet stirred reactor 

摘      要：The present work examines the applicability of the joint transported probability density function (TPDF) with the velocity field obtained from a conventional RANS k-epsilon approach in a jet-stirred reactor, where the Damk hler number is below the unity. In the TPDF equation, turbulent transport is handled with a conventional k-epsilon gradient transport assumption and the LMSE is used for the molecular mixing. Through the use of a dynamic model for the mixing time-scale, by computing the individual time-scales for the reactive scalars dynamically in each cell during the course of the simulation using the RANS-TPDF code. The chemical reaction is described by a reduced and detailed chemical propane mechanism. The modelized PDF equation constants are determined from the available experimental data conducted by using fine wire thermo-anemometry. The CFD-TPDF predictions were within engineering accuracy of experimental data. It can be summarized that the results of exercise are satisfactory, and the CPU-time and RAM memory savings encouraging.