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Which of these statements is true?(a) 1-D steady-state diffusion is the simplest of all transport equations(b) 1-D steady-state diffusion is the toughest of all transport equations(c) 1-D steady-state convection is the simplest of all transport equations(d) 1-D transient diffusion is the simplest of all transport equationsI got this question in class test.This key question is from FVM for 1-D Steady State Diffusion topic in chapter Diffusion Problem of Computational Fluid Dynamics

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Right ANSWER is (a) 1-D steady-state diffusion is the simplest of all transport equations

Explanation: The one-dimensional steady-state diffusion is the simplest preliminary problem in CFD. This cancels out most of the TERMS in the general transport equation. In HEAT FLOW problems it means conduction and in mass-flow problems, it means diffusion.



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