水平加熱円板上に隙間のある円管状のフィンを設けた場合の自然対流熱伝達

抄録

Natural convection heat transfer from the horizontal heated disk with the cylindrical tube with the gap was investigated experimentally. To estimate the heat transfer, the temperatures of the surfaces were measured using thermocouples. The flow fields around the horizontal heated disk and the cylinders with the gaps were visualized using a particle image velocimetry system. The heat transfer was enhanced by increasing the gap width and decreasing the height of the lower cylinder. This is because the flow velocity near the side of the upper cylinder increased. Under conditions where the overall height was constant, the gap had an appropriate value for the width and the position.