One Problem of the Conduction of Heat in a Hollow Sphere, Periodically Heated and Cooled

[摘要] The author of the present paper studied the variation of the temperature in a hollow sphere when the temperature of the outer side of the sphere varies periodically and the temperature at any point depends merely on the distance from the center, and he showed an example of the numerical calculation.The temperature in the shell of the hollow sphere u1, and that of the air in the sphere u2 are obtained by solving the following equations:∂(ru_??_)/∂t=K1 2∂_??_(ru_??_)/∂r2, [0

[学科分类] 大气科学