In order to solve this problem, the effects of airflow velocity and airflow direction on heat transfer coefficient of wall surface are studied in this paper.
为了解决这个难题,本文通过实验测试和系统辩识的方法研究了风速风向对墙体表面换热系数的影响。
The results show that the heat transfer coefficient of wall surface is proportional to air velocity under normal airflow velocity, but it is not affected significantly by airflow direction.
研究表明:在通常室内风速条件下,墙体表面换热系数与风速速率的大小成正比,而风向对墙体表面换热系数的影响不明显。
Method and formulae for calculating the mean forced convection heat-transfer coefficient of the blade surface, as well as for the blade passage's bottom wall, are introduced.
介绍了汽轮机动叶片叶身平均对流换热表面传热系数和叶片流道下壁面对流换热表面传热系数的计算方法和计算公式。
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