Effect of Temperature Variations on Heat Transfer Coefficient in Crossflow over a Circular Cylinder

온도변화가 실린더 주위 열전달계수에 미치는 영향에 관한 실험적 연구

coefficient precisely, experiments were carried out in three categories which contain the regime of (1) constant wire temperature (2) constant fluid temperature (3) constant temperature difference between wire and fluid. Measurements were made with electrically heated circular tungsten wire placed normal to air stream at the exit of jet. Heat transfer coefficient was increased with wire temperature increasing and decreased by fluid temperaure increasing and was not changed with varying both temperature if their difference were kept constant.