AM05-14-004 切欠きフィン付設流路内の熱流動特性(乱流熱物質移動および反応流1,一般講演)

概要

論文の詳細を見る
PIV measurements and numerical simulations have been carried out to study the flow and heat transfer characteristics of a cut-fin array densely mounted on the wall inside a rectangular channel. The conditions of Reynolds number 200 and 10000 were tested to cover both laminar and turbulent flow regimes. The cut-fin array was also changed in terms of arranging each notch in a parallel or oblique form. In the Re=200 case, flow circulation was formed inside the notch and the fow passing the fin clearance was induced toward the notch. For the oblique notch arrangement case, an additional spanwise flow was observed which generates a longitudinal vortex-like secondary flow. This flow enhanced the fluid mixing between the fin area and the clearance which remarkably enhance the heat transfer performance. In the Re=10000 case, the flow circulation inside the notch was not observed and a certain amount of fluid passing between the fins was obtained.
日本流体力学会の論文
2005-09-05