CFD Online Discussion Forums - Motion continuity errors

Hi foamers ,

Do you know anything about origin of Motion continuity errors ?
How can I overcome this problem?
I am simulating an engine with dynamic mesh and changing topology..

Code:

Starting time loop



Courant Number mean: 0 max: 0 velocity magnitude: 0

deltaT = 2.6455e-06

Crank angle = 0.0238095 CA-deg

CG:  Solving for motionUx, Initial residual = 0, Final residual = 0, No Iterations 0

CG:  Solving for motionUy, Initial residual = 0, Final residual = 0, No Iterations 0

CG:  Solving for motionUz, Initial residual = 0.213596, Final residual = 0.000179652, No Iterations 20

CG:  Solving for motionUx, Initial residual = 4.89248e-09, Final residual = 4.42683e-10, No Iterations 1

CG:  Solving for motionUy, Initial residual = 0, Final residual = 0, No Iterations 0

CG:  Solving for motionUz, Initial residual = 0.000100573, Final residual = 7.10585e-08, No Iterations 21

Volume: new = 48492.4 old = 48492.3 change = 0.0719435

Motion continuity errors : sum local = 1.22866e-15, maximum = 2.88108e-14

Floating point exception (core dumped)

Thanks and best regards,
Sasan.