The combined radiation and convection heat transfer in the entry region of a circular pipe flow was studied numerically. A P differential approximation based on a method developed recently was used to transform the complicated integral terms, which described the radiative heat transfer in the energy equation, to a simpler differential form that a rapid calculation procedure could be readily performed. The STAN5 computer program used to calculate the boundary layer flow was adopted and modified to include the radiation effect to calculate the heat transfer of pipe flow in the entry region. For gray gas the heat transfer result was compared with that predicted previously. The agreement between both predictions was good. The modified STAN5 was also readily used to calculate the heat transfer of carbon dioxide gas flow through a gray circular pipe.
|Title of host publication||Unknown Host Publication Title|
|Number of pages||9|
|Publication status||Published - 1987|
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