摘要
在空气中进行自然对流冷却时,即使在常温下,辐射换热量也与对流换热量相当,因此,在肋片散热计算中必须考虑辐射换热。田中贞行等对有辐射时肋片的散热进行了研究,但他们假定换热系数沿肋高是不变的。在各种肋片型线中,梯形肋片既经济(与矩形截面相比),结构又简单(与抛物线截面相比),所以,本文以梯形肋片作为研究对象。
Heat transfer, including natural convection and radiation, of a trapezoidal straight fin has been investigated. Local heat transfer coefficient and temperature profile along the fin height were given. Accordingly, the total heat transferred by the fin and the fin effectiveness were obtained and the fin performance was also analysed.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1989年第1期69-71,共3页
Journal of Engineering Thermophysics
