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首页> 外文期刊>Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology >Extension of the discrete ordinates interpolation method to combined convection-radiation problems with fluid flow in three-dimensional geometries filled with gray participating media
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Extension of the discrete ordinates interpolation method to combined convection-radiation problems with fluid flow in three-dimensional geometries filled with gray participating media

机译：将离散坐标插值方法扩展为在灰色参与介质填充的三维几何中具有流体流动的对流-辐射组合问题

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摘要

Combined convection-radiation problems in gray absorbing/emitting/ scattering media are investigated numerically. The discrete ordinates interpolation method (DOIM) is incorporated into commercial software (FLUENT) using userdefined functions (UDFs). As preliminary tests, combined conductionatural convection-radiation problems in a rectangular geometry are solved to validate the accuracy. The original DOIM is modified to solve the radiative heat transfer in an irregular geometry with internal obstacles. Then the combined turbulent forced convection-radiation problem is solved, and the radiation effects are discussed through the profiles of velocity and temperature. Fine agreement with other reference solutions is found. The DOIM promises reliable accuracy and excellent versatility for incorporation into fluid flow codes. Further computational issues are also discussed.
机译：数值研究了灰色吸收/发射/散射介质中的对流辐射综合问题。使用用户定义的函数（UDF）将离散坐标插值方法（DOIM）合并到商业软件（FLUENT）中。作为初步测试，解决了矩形几何形状中传导/自然对流辐射的组合问题，以验证准确性。原始的DOIM进行了修改，以解决带有内部障碍物的不规则几何形状中的辐射传热。然后解决了湍流强迫对流的综合辐射问题，并通过速度和温度曲线讨论了辐射效应。找到与其他参考解决方案的良好协议。 DOIM保证了可靠的准确性和出色的通用性，可将其纳入流体流代码中。还讨论了其他计算问题。

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