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3.14 Exercise 4: The Coriolis Force in Action 553.14.4 Improved Scheme 2: The Local-Rotation ApproachThe Coriolis force operates at a right angle to velocity and does not change thespeed of motion, only the direction. Hence, this feature can be simulated by a localrotation of the velocity vector; that is,u n+1 = cos(α)u n + sin(α)v n , (3.53)v n+1 = cos(α)v n − sin(α)u n (3.54)From geometric considerations, the rotation angle can be determined at α = 2arcsin (0.5Δtf). For Δt | f |
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