Question

Which of these statements about the Adams-Moulton method is correct?

(a) It involves the terms at the older time-step only

(b) It involves the terms at the next time-step

(c) It does not involve iterations

(d) It does not involve older steps

This question was posed to me in unit test.

This intriguing question originated from Transient Flows in division Transient Flows of Computational Fluid Dynamics

Answer 1

Right option is (b) It involves the terms at the next time-step

Easy explanation: The Adams-Moulton method involves the information at the upcoming steps also. The advantage of the Adams-Moulton method is that it needs only n steps to get an order of accuracy equal to n+1.