摘要
建立了由内部一点测量温度值,选取多个时间步长计算未知的表面热流密度与换热系数的导热反问题算法。该算法采用有限容积法离散方程,附加源项法处理边界条件。将该计算模型应用于求解浸没水射流冷却过程中表面热流密度,将计算温度值与实验测温值进行比较验证了算法的正确性。在此基础上分析了水射流冲击过程中薄钢片表面热流密度随表面温度与时间的变化特性。
Based on future time steps and inner temperature,an inverse heat conduction method for calculating unknown surface heat flux and heat transfer coefficient is developed using finite volume discrete equation and additional source term method.The algorithm is verified through the comparison of the predicted temperature and experimental result after the calculation of surface heat flux in immersed water jet cooling.Then we analyze the influence of future time steps on the result and the dynamic behavior of the surface heat flux on a thin steel plate related to the surface temperature and time during the water jet cooling process.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2010年第1期110-112,共3页
Journal of Engineering Thermophysics
基金
新世纪优秀人才支持计划项目(No.NCET-04-0938)
教育部科学技术研究重点项目(No.107101)
西安交通大学学科交叉项目(No.2009xjtujc05)资助
