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John Howlett

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John Howlett last won the day on October 25 2011

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About John Howlett

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    SMS Expert

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    Houston, TX
  • Interests
    Arctic, Geotechnical, Marine, Port, Coastal, Ocean, and Structural Engineering

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  1. Lauren, What version of SMS and PTM are you using? An updated version of SMS 10.1 and the PTM model will be posted soon. I believe a problem was fixed recently where the first (x,y) point would be repeated in the trap file so there was one extra point per trap. Until the new version is posted, you may want to check if this is what is causing the problem. - John
  2. Let me see if I understand You have a .geo file with linear or quadratic elements You have a .sol file with a value for each node in the .geo file When you read in the .sol file after reading in the .geo file you get an error message saying, "THE SOLUTION FILE DOES NOT MATCH THE MESH" I believe we will need to take a look at your files. Please send them to technical support.
  3. Jose, What is the build date of the version of SMS you are using (See Help | About)? Thank you, John
  4. Have you tried to represent the structure as part of the mesh? SRH-2D is very stable and I believe you should be able to add the spillway to the mesh. Once the spillway is part of the mesh (and has the proper elevation assigned), the water will only flow over the crest when the water surface elevation exceeds the crest. The boundary conditions you inquired about are described in the manual as follows, but I would try adding the spillway to the mesh. EXIT-H: It is a downstream exit boundary with a subcritical flow. Water surface elevation should be specified at this boundary along with the unit
  5. Simo, In addition to the tutorial Rusty mentions, there is a brief description of feature stamping on the documentation wiki: http://xmswiki.com/xms/SMS:Feature_Stamping - John
  6. Please send your files to Technical Support and I will take a look at them. The previous posts pretty much cover any suggestion I could offer without looking at your files. When you send the files, tell them John Howlett wanted to look at them. Also, for the SRH-2D users out there - We have been working with Yong Lai, the developer of SRH-2D, on changes to SRH-2D that will allow the model to write the model output as XMDF files. This should make post-processing in SMS easier in the future. - John
  7. MO, The interpolation issue has been resolved. Any versions of SMS created after 2009-10-30 will no longer have this issue.
  8. Joel et al, This problem has been resolved in the latest version of SMS 10.1.
  9. You may want to send this question to the ADCIRC Listserv, which is monitored by the developers of ADCIRC and other ADCIRC users. Instructions on how to join are posted at the ADCIRC website (http://www.adcirc.org).
  10. Lauren, Unfortunately the model PTM does not have an option to loop or extrapolate hydrodynamic data. Depending on what model your hydrodynamic output is from, it may be possible to manually alter the file to add additional timesteps. - John
  11. You may find the following post helpful: http://aquaveo.invisionzone.com/index.php?showtopic=379 See the PDF posted towards the bottom.
  12. Thread continues at http://aquaveo.invisionzone.com/index.php?showtopic=810
  13. Thank you for the information. We are working to support Windows 7. I will pass along the information you found to those in charge of building the installation packages.
  14. SMS does not currently have a model for modeling oil spills. Although the RMA4 manual suggests that it can be used for this, RMA4 should not be used to evaluate highly volatile materials such as gasoline, nor materials that do not mix with water, such as oil. See http://www.xmswiki.com/xms/SMS:RMA4 The model PTM can be used for particle tracking, but again, it would provide a crude estimate at best in my opinion. You may want to investigate the NOAA oil response software program GNOME. From the NOAA website: GNOME (General NOAA Operational Modeling Environment) is the oil spill trajectory mode
  15. Lauren, The ability to create a transient dataset from a steady state dataset is a new feature in SMS 10.1. Unfortunately, SMS 10.0 does not have this functionality.
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