毛宇飞, 上官燕琴, 肖洪. 管内充分发展流动与传热数值模拟的教学方法探讨. 力学与实践, 2024, 46(1): 158-164. doi: 10.6052/1000-0879-23-211
引用本文: 毛宇飞, 上官燕琴, 肖洪. 管内充分发展流动与传热数值模拟的教学方法探讨. 力学与实践, 2024, 46(1): 158-164. doi: 10.6052/1000-0879-23-211
Mao Yufei, Shangguan Yanqin, Xiao Hong. Research on teaching methods for numerical simulation of fully-developed flow and heat transfer in tubes. Mechanics in Engineering, 2024, 46(1): 158-164. doi: 10.6052/1000-0879-23-211
Citation: Mao Yufei, Shangguan Yanqin, Xiao Hong. Research on teaching methods for numerical simulation of fully-developed flow and heat transfer in tubes. Mechanics in Engineering, 2024, 46(1): 158-164. doi: 10.6052/1000-0879-23-211

管内充分发展流动与传热数值模拟的教学方法探讨

RESEARCH ON TEACHING METHODS FOR NUMERICAL SIMULATION OF FULLY-DEVELOPED FLOW AND HEAT TRANSFER IN TUBES

  • 摘要: 由于缺乏数值计算的基础理论知识,工科本科生在学习流体流动与传热过程的数值模拟方法并进行程序设计时,往往觉得难度较大。本文围绕圆管内不可压缩流体充分发展流动与传热,采用边界层积分法,推导出无量纲控制方程组;针对层流工况和湍流工况,开发出相应的数值方法。基于该方法的程序代码易于理解,且计算结果表明该方法具有预测精度高、收敛速度快的优点。本文的工作可以为计算流体力学、数值传热学及热工计算等系列课程的本科教学提供参考。

     

    Abstract: Owing to the lack of the basic theoretical knowledge about numerical simulations, it is difficult for engineering undergraduates to learn how to perform numerical simulation with computer programming for the flow and heat transfer characteristics of fluids in the laminar and turbulent regimes. Based on boundary layer integration approach, the dimensionless governing equations are derived for the fully developed flow and heat transfer of incompressible fluid in the circular tube. The numerical method has been developed for solving the governing equations under laminar and turbulent flow conditions. The calculation method and the computer program are easy to understand, and the numerical results indicate the method and program can simulate the fully developed flow and heat transfer in tubes with high prediction accuracy and fast convergence speed. The present work is expected to provide valuable reference for the undergraduate teaching of computational fluid dynamics, numerical heat transfer, and thermal calculation.

     

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