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Which of these is a popular version of the ADI scheme?

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in Computational Fluid Dynamics by (118k points)
Which of these is a popular version of the ADI scheme?

(a) Operator splitting

(b) Approximate factorization

(c) ALU algorithm

(d) SIMPLE algorithm

This question was addressed to me at a job interview.

My query is from CFD Techniques in portion Some Simple CFD Techniques of Computational Fluid Dynamics

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Correct answer is (b) Approximate factorization

To explain I would say: The major objective of the ADI scheme is to make the Thomas algorithm for tri-diagonal matrices applicable to multi-dimensional problems. This scheme has other versions too. One of the popular versions of the ADI scheme is the approximate factorization scheme.

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