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Particle Tracking


MattT
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All,

I would like to simply track a weightless particle (drogue) through a tidal estuary to visually assess flow patterns and view the extent of particle movements using the actual current data. I have created a drouge/trace dataset and video, however, the controls do not allow for a single particle and actual velocity advection (controls specify number of particles per timestep, minimum velocity, etc.).

Is this scheme (a single drouge tracking) able to be or best modeled in the PTM? I have not used this model and am not very familiar with it. Any input would be greatly appreciated. Thanks.

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PTM does allow neutrally buoyant particles to be tracked. See http://xmswiki.com/xms/SMS:PTM for more details about PTM. The external links section may be of interest to you.

http://el.erdc.usace.army.mil/dots/doer/pdf/TR-06-20.pdf

Advection velocity - page 22

Diffusion velocity - page 31

- John

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John,

Many thanks for the quick response. I have tried to follow the wikis to the best of my ability, however, the model continues to crash/abort prior to running. Can you provide any further documentation on how to convert RMA2 hydrodynamic solution files to those required for input into the PTM? I attempted to contact tech support and they informed me that your updated documentation and/or tutorials are not avaiable at this time. Thanks.

PTM does allow neutrally buoyant particles to be tracked. See http://xmswiki.com/xms/SMS:PTM for more details about PTM. The external links section may be of interest to you.

http://el.erdc.usace.army.mil/dots/doer/pdf/TR-06-20.pdf

Advection velocity - page 22

Diffusion velocity - page 31

- John

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Matt,

I have posted the PTM tutorials on our FTP site:

ftp://pubftp.aquaveo.com/download/PTMTutorials/

Please note that the reason they aren't being "officially" distributed yet is there are still some changes we need to make.

Hope this helps.

- John

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