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odesolve fail to converge, what can i do?

ptc-4735478
12-Amethyst
12-Amethyst
‎Feb 13, 2013 03:49 AM
‎Feb 13, 2013 03:49 AM

odesolve fail to converge, what can i do?

need help with the sheet, which has a fail odesolve

what can I do?

I just want to find the pathline and streakline from a velocity field,

BTW why the two velocity field plot at different time look exactly the same while is should really be different?

Type M1-M2 or N1-N2 show the two field is different., so what is happening?

Thanks

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P3.9.xmcd.zip
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AlanStevens
17-Peridot
17-Peridot
(To:ptc-4735478)
‎Feb 13, 2013 08:29 AM
‎Feb 13, 2013 08:29 AM

henry leung wrote:

need help with the sheet, which has a fail odesolve

Odesolve fails because your equations "blow up" before the end time. If you set tend = 0.49 the odesolve works and you can see what is happening to y and z.

Alan

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