Which of these time-steps are needed to approximate the value at time-step \(\frac{\Delta t}{2}\) using the second-order upwind Euler scheme for finite volume approach?
(a) t-\(\frac{\Delta t}{2}\) and t-2Δ t
(b) t and t-Δ t
(c) t-Δ t and t-2Δ t
(d) t and t-2Δ t
This question was addressed to me in an online quiz.
The above asked question is from Transient Flows in chapter Transient Flows of Computational Fluid Dynamics