Question

In the early days, CFD simulations were limited to two-dimensional analyses. Three-dimensional analyses could not be performed because of _________

(a) Complex mathematical models were not resolved

(b) Governing equations were not developed for three-dimensions

(c) Approximations for three-dimensions did not exist

(d) The type of computers and algorithms that existed

I had been asked this question during an internship interview.

This is a very interesting question from Research and Design Tool in portion Philosophy of Computational Fluid Dynamics of Computational Fluid Dynamics

Answer 1

The correct choice is (d) The type of computers and algorithms that existed

The explanation is: The computers and algorithms that existed that time was not suitable for three-dimensional analyses. Storage and speed capacities of computers were not enough.