Dawson C, Vincent JF, Jeronimidis G, Rice G, Forshaw P
Centre for Biomimetics, University of Reading, Reading, RG6 6AT, U.K.
J Theor Biol. 1999 Aug 7;199(3):291-5. doi: 10.1006/jtbi.1999.0959.
Morphological measurements of penguin feathers are used to construct a thermal model of heat transfer through the coat. Assuming uniform distribution of the feathers and their associated afterfeathers, it is possible to model heat transfer through the coat of the penguin using standard theory. It is shown that convection does not occur in the coat of the penguin and that radiative heat loss is minimized. The theory predicts a thermal conductivity of 2.38 W m(-2)K(-1)which compares well with an empirically measured value of 1.93 W m(-2)K(-1). Copyright 1999 Academic Press.
企鹅羽毛的形态学测量被用于构建一个通过其体表的热传递热模型。假设羽毛及其相关的绒羽分布均匀，那么利用标准理论就有可能对企鹅体表的热传递进行建模。结果表明，企鹅体表不会发生对流，且辐射热损失最小化。该理论预测的热导率为2.38 W m(-2)K(-1)，这与经验测量值1.93 W m(-2)K(-1)相当吻合。版权所有1999年学术出版社。
