Stromness, 27 th  February 2011 SUNTANS Model  Pentland Firth and Orkney Waters Dr. Susana Baston Meira ICIT-  Internation...
Research Team <ul><li>Dr Susana Baston Meira, ICIT H-W </li></ul><ul><li>Dr Rob Harris, ICIT H-W </li></ul><ul><li>Prof Jo...
Contents <ul><li>Introduction to Numerical Flow Modelling </li></ul><ul><li>SUNTANS Model description  </li></ul><ul><li>I...
Introduction to Numerical Flow Models <ul><li>Description of water column structure </li></ul><ul><li>Estimation of energy...
Introduction to Numerical Flow Models Information   in z-coordinate TELEMAC-3D http://www.telemacsystem.com/ SUNTANS S tan...
SUNTANS Model: Definition SUNTANS   is a numerical model designed for the simulation of complex,  non-hydrostatic , coasta...
SUNTANS Model: Primary Publications <ul><li>O. B. Fringer, M. Gerritsen, and R. L. Street, 2006. &quot;An  unstructured-gr...
SUNTANS Model: Why? <ul><li>Open source : Accessible to a wide research community </li></ul><ul><li>Three-dimensional appr...
SUNTANS Model: Open Source Why not Mike-3D? Commercial software Why not Telemac? Only 2D open source Why not FVCOM? Non-hy...
SUNTANS Model: Unstructured Unstructured  grid,  Terrain-following adaptive   SUNTANS employs  a  z-level grid Structured ...
SUNTANS Model: Nonhydrostatic It is ideally suited to modelling regions of  high turbulence  including  density gradients ...
Implementation: PF & OW Computational requirements Model is installed on the IPE cluster in Edinburgh. It has  10-node of ...
Implementation: PF & OW 25708 cells,  20 z-levels,  Δt=2s,  Run Time 12 hours,  Simulation 3 days,  4 processors
Implementation: PF & OW 38342 cells, 10 levels, Δt=5s, Run Time 1 day, Simulation 10 days, 2 processors
Implementation: PF & OW Point 1 Comparison  SUNTANS-OTIS
Implementation: PF & OW The UKHO provided Gardline with three target locations for  the deployments as follows: Data: One ...
Implementation: PF & OW
Focus of Present Research <ul><li>Development of model, spatial and temporal resolution </li></ul><ul><ul><li>Validation a...
Email: s.baston@hw.ac.uk Web:  http://www.icit.hw.ac.uk/ Thanks for your attention!
 
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SRDG April2011

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Brief description of SUNTANS model implementation to research hydrodynamic characteristic of the Pentland Firth

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SRDG April2011

  1. 1. Stromness, 27 th February 2011 SUNTANS Model Pentland Firth and Orkney Waters Dr. Susana Baston Meira ICIT- International Centre for Island Technology Heriot-Watt University, Orkney Campus
  2. 2. Research Team <ul><li>Dr Susana Baston Meira, ICIT H-W </li></ul><ul><li>Dr Rob Harris, ICIT H-W </li></ul><ul><li>Prof Jon Side, ICIT H-W </li></ul><ul><li>Dr Karl Stephen, IPE H-W </li></ul><ul><li>Prof Margot Gerritsen, Stanford University </li></ul>
  3. 3. Contents <ul><li>Introduction to Numerical Flow Modelling </li></ul><ul><li>SUNTANS Model description </li></ul><ul><li>Implementation at PF & OW </li></ul><ul><li>Focus of Present Research </li></ul>
  4. 4. Introduction to Numerical Flow Models <ul><li>Description of water column structure </li></ul><ul><li>Estimation of energy resource </li></ul><ul><li>Evaluation of scales of resolution </li></ul><ul><li>Physical environment changes </li></ul><ul><li>Shoreline morphodynamic alteration </li></ul><ul><li>Larvae and pollutants transport </li></ul>Of Interest, 2D & 3D models
  5. 5. Introduction to Numerical Flow Models Information in z-coordinate TELEMAC-3D http://www.telemacsystem.com/ SUNTANS S tanford U nstructured N on-hydrostatic T errain following A daptive N avier-Stokes S imulator http://suntans.stanford.edu/ ROMS R egional O cean M odel S ystem http://www.myroms.org/ POM P rinceton O cean M odel http://www.aos.princeton.edu/WWWPUBLIC/htdocs.pom/ MIKE-3D http://mikebydhi.com/Products/CoastAndSea/MIKE3.aspx FVCOM F inite V olume C omunnity O cean M odel http://fvcom.smast.umassd.edu/FVCOM/index.html COHERENS CO upled H ydrodinamic E cological model for RE gio N al S helf Seas http://www.mumm.ac.be/EN/Models/Coherens/index.php ADCIRC A (parallel) AD vanced CIRC ulation model for Oceanic, Coastal and Estuarine waters http://www.unc.edu/ims/adcirc/ 3-D Hydrodynamic Models
  6. 6. SUNTANS Model: Definition SUNTANS is a numerical model designed for the simulation of complex, non-hydrostatic , coastal, river and estuarine flows, with high resolution on unstructured grids using parallel computers.
  7. 7. SUNTANS Model: Primary Publications <ul><li>O. B. Fringer, M. Gerritsen, and R. L. Street, 2006. &quot;An unstructured-grid, finite-volume, nonhydrostatic, parallel coastal-ocean simulator &quot;, Ocean Modelling, 14 (3-4), 139-278. </li></ul><ul><li>O. B. Fringer, 2009, &quot;High-resolution 3D hydrodynamics and sediment transport modeling of San Francisco Bay“ </li></ul><ul><li>O. B. Fringer, 2009, &quot;Towards nonhydrostatic ocean modeling with large-eddy simulation “ </li></ul><ul><li>B. Wang, O. B. Fringer, and E. S. Gross, 2010, &quot;Understanding turbulent mixing in a partially stratified estuary using SUNTANS&quot; </li></ul><ul><li>D. Kang and O. B. Fringer, 2010, &quot;On the calculation of available potential energy in internal wave fields &quot;, J. Phys. Oceanogr., 40 (11), 2539-2545. </li></ul>
  8. 8. SUNTANS Model: Why? <ul><li>Open source : Accessible to a wide research community </li></ul><ul><li>Three-dimensional approach : Resolves vertical flow characteristics </li></ul><ul><li>Unstructured grid : Provides exceptional resolution around fine-scale features </li></ul><ul><li>Parallel Implementation : Facilitates high resolution, efficient computational use </li></ul><ul><li>Active, developing, research community : H-W links with Stanford University </li></ul>
  9. 9. SUNTANS Model: Open Source Why not Mike-3D? Commercial software Why not Telemac? Only 2D open source Why not FVCOM? Non-hydrostatic version yet to be tested Unstructured
  10. 10. SUNTANS Model: Unstructured Unstructured grid, Terrain-following adaptive SUNTANS employs a z-level grid Structured grid Unstructured grid z-coordinate isopycnal coordinate σ -coordinate <ul><li>Vertical discretisation: </li></ul><ul><li>z-coordinate models </li></ul><ul><li>isopycnal models </li></ul><ul><li>σ-coordinate models </li></ul>
  11. 11. SUNTANS Model: Nonhydrostatic It is ideally suited to modelling regions of high turbulence including density gradients Fringer, O., McWilliams, J. & Street, R., 2006. A New Hybrid Model for Coastal Simulations. Oceanography , 19(1), 65-77. SUNTANS is Non-hydrostatic Solves vertical acceleration and friction
  12. 12. Implementation: PF & OW Computational requirements Model is installed on the IPE cluster in Edinburgh. It has 10-node of 8 processors. Operating system: Linux Initial conditions : -- Quiescent free surface and velocity field -- No stratification Boundary conditions : They are given by the first eight tidal constituents computed by OTIS 38,342 cells, 20 levels, Δt=2s, Run Time 14 hours, Simulation 3 days, 6 processors
  13. 13. Implementation: PF & OW 25708 cells, 20 z-levels, Δt=2s, Run Time 12 hours, Simulation 3 days, 4 processors
  14. 14. Implementation: PF & OW 38342 cells, 10 levels, Δt=5s, Run Time 1 day, Simulation 10 days, 2 processors
  15. 15. Implementation: PF & OW Point 1 Comparison SUNTANS-OTIS
  16. 16. Implementation: PF & OW The UKHO provided Gardline with three target locations for the deployments as follows: Data: One month of velocity averaged every 10 minutes 11:35 14/09/01 71 m 002° 58’ 35”W 58° 40’ 13”N 3 12:01 14/09/01 80 m 003° 05’ 09”W 58° 43’ 01”N 2 12:30 14/09/01 82 m 003° 14’ 11”W 58° 43’ 34”N 1 TIME DEPLOYED DEPTH LONGITUDE LATITUDE SITE
  17. 17. Implementation: PF & OW
  18. 18. Focus of Present Research <ul><li>Development of model, spatial and temporal resolution </li></ul><ul><ul><li>Validation against field data / other theoretical models </li></ul></ul><ul><ul><li>Improved bathymetry </li></ul></ul><ul><ul><li>Seabed friction coefficient </li></ul></ul><ul><li>Identification and Characterisation of PF waters </li></ul><ul><ul><li>Turbulence, identification of eddies </li></ul></ul><ul><ul><li>Mixing process, density stratification </li></ul></ul><ul><li>Evaluation of energy resource </li></ul><ul><ul><li>Velocity profile characteristics </li></ul></ul><ul><ul><li>Energy extraction, available resource, farm size / layout </li></ul></ul><ul><li>Environmental impacts </li></ul><ul><ul><li>Site characteristics, scale, layout, near / far field effects </li></ul></ul>
  19. 19. Email: s.baston@hw.ac.uk Web: http://www.icit.hw.ac.uk/ Thanks for your attention!

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