The second step of the ADI scheme is swept over __________ direction.(a) both the x and y(b) the x(c) the y(d) the timeThis question was posed to me during an interview for a job.My doubt is from CFD Techniques in division Some Simple CFD Techniques of Computational Fluid Dynamics

The second step of the ADI scheme is swept over __________ direction.(

1.	The second step of the ADI scheme is swept over __________ direction.(a) both the x and y(b) the x(c) the y(d) the timeThis question was posed to me during an interview for a job.My doubt is from CFD Techniques in division Some Simple CFD Techniques of Computational Fluid Dynamics
Answer» The correct CHOICE is (C) the y The best I can explain: The second step of the ADI scheme uses the time domain from t+\(\FRAC{\DELTA t}{2}\)to t+Δt. Here, the y-derivative is treated IMPLICITLY after replacing the derivatives with central differences. The solutions are swept in the y-direction here.

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