一様な水の流れの中におかれた平板の熱伝達 : 物質特性値の温度による変化の影響

抄録

Considering the variation of properties depending upon temperature, the auther calculated heat transfer and skin friction for a heated flat plate in longitudinal flow of water. The differential equations for laminar forced convection are solved by means of perturbation theory, using the Pohlhausen's solution for constant properties as 0 approximation. It is assumed that (1) density and specific heat are constant ; (2) viscosity varies in proportion to T^-6, where T is absolute temperature ; and (3) thermal conductivity varies in proportion to T^m, where m varies with temperature of general flow. Fricton factor and Nusselt's number are given for the value of (T₀-T₁)/T₁, where T₀ and T₁ are the absolute temperature of plate and general flow, respectively.