All Problems

Transport Phenomena

Problem 2.251

Find the temperature distribution in a substance placed between two parallel plates kept at temperatures \(T_{1}\) and \(T_{2}\). The plate separation is equal to \(l,\) the heat conductivity coefficient of the substance \(x \bar{\propto} \sqrt{T}\).

Reveal Answer
T=T1{1+(x/l)[(T2/T1)3/21]}2/3, where x is the distance from the plate maintained at the temperatureT1T=T_{1}\left\{1+(x / l)\left[\left(T_{2} / T_{1}\right)^{3 / 2}-1\right]\right\}^{2 / 3}, \text { where } x \text { is the distance from the plate maintained at the temperature} T_{1}