Steady state one dimensional heat flow by conduction as given by Fourier's low does not assume that_______________?
Correct answer: C. Material is anisotropic
- A. There is no internal heat generation
- B. Boundary surfaces are isothermal
- C. Material is anisotropic
- D. Constant temperature gradient exists
Explanation
The usual one-dimensional Fourier-conduction model assumes an isotropic material, so thermal conductivity is not direction-dependent. Anisotropy requires a conductivity tensor and is therefore not part of the standard assumption set.
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