东篱科研大数据发现系统（DRDS）

位置：成果数据库 > 期刊 > 期刊详情页

Numerical simulation of combustion characteristics at different coal concentrations in bituminous coal ignition in a tiny-oil ignition burner

时间：0
分类：TP124[自动化与计算机技术—控制科学与工程;自动化与计算机技术—控制理论与控制工程]
作者机构：[1]School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
相关基金：Sponsored by the National Natural Science Foundation of China （Grant No. 51176038 ） and the Foundation/＇or Innovative Research Groups of the National Natural Science Foundation of China （Grant No. 51121004）.

作者： Chunlong LIU Qunyi ZHU Zhengqi LI Qiudong ZONG Yiquan XIE Lingyan ZENG

中文摘要：

In order to investigate the applicability and performance of the Lattice Boltzmann Method( LBM) and the Monte Carlo Method( MCM) to simulate phonon heat transfer,a problem of phonon heat transfer in square geometry structures of silicon dioxide was taken as an example to compare the calculational results and analyze computational efficiency of the two methods. Moreover,this work analyzed the numerical stability for two methods. The results indicate that the MCM takes much more computation time than the LBM in the same condition. In addition,the results of the two methods have a good agreement in diffusive and diffusive-ballistic domain for investigating the phonon heat transfer. So they can be used to verify each other when the experiments of energy transport in these domains faces difficulty. In ballistic domain,duo to the random error,the temperature distribution curve from MCM is fluctuant.

英文摘要：

In order to investigate the applicability and performance of the Lattice Bohzmann Method （LBM） and the Monte Carlo Method （MCM） to simulate phonon heat transfer, a problem of phonon heat transfer in square geometry structures of silicon dioxide was taken as an example to compare the calculational resuhs and analyze computational efficiency of the two methods. Moreover, this work analyzed the numerical stability for two methods. The results indicate that the MCM takes much more computation time than the LBM in the same condition. In addition, the results of the two methods have a good agreement in diffusive and diffusive-ballistic domain for investigating the phonon heat transfer. So they can be used to verify each other when the experiments of energy transport in these domains faces difficulty. In ballistic domain, duo to the random error, the temperature distribution curve from MCM is fluctuant.