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1. |
The governing equation of an unsteady one-dimensional heat transfer problem is given below. It has a solution u(x,t) = U(x)exp(λt). What is λ appropriately called?\(\frac{-\partial}{\partial x} (a \frac{\partial u}{\partial x}) + b \frac{\partial u}{\partial t}\) + cu = 0 for 0 |
A. | Natural frequency |
B. | Eigenvalue |
C. | Thermal diffusivity |
D. | Thermal flux |
Answer» C. Thermal diffusivity | |