Version 12 (modified by amoulin, 3 years ago) (diff) |
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Name and subject of the action
Last edition: Wikinfo(changed_ts)? by Wikinfo(changed_by)?
The PI is responsible to closely follow the progress of the action, and especially to contact NEMO project manager if the delay on preview (or review) are longer than the 2 weeks expected.
Summary
Action | NEMO-Wave coupling test case |
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PI(S) | Aimie Moulin, Emanuela Clementi |
Digest | An adiabatic test case will be implemented to test the NEMO-wave interactions consisting of a steady monochromatic wave shoaling on a slope without bottom friction. A symmetric bottom sloping is used to allow for periodic boundary conditions in the x-direction. Open boundary conditions are defined in y-directions. |
Dependencies | |
Branch | source:/NEMO/branches/{YEAR}/dev_r{REV}_{ACTION_NAME} |
Previewer(s) | TBD |
Reviewer(s) | TBD |
Ticket | #2613 |
Description
The adiabatic test case is used to validate the implementation of the GLM equation in case of wave-current interaction.
It consists on a steady monochromatic waves shoaling from 4 to 6 m depth on a slope without breaking nor bottom friction nor wave-induced mixing, and for an inviscid fluid.
Waves and bottom topography are uniform in the y_direction. The flow is confined to a channel with free-slip boundary condition at North and South.
Open boundary condition are set at the East and West. 120 sigma-levels are used.
In this testcase NEMO is forced by wave fields calculated by WaveWatch3.
The characteristics of the waves are a significant wave height Hs=1.02m, a wave period T=5.26s, and a wave direction theta=90°.
In absence of dissipation, and given proper lateral boundary conditions the flow in wave shoaling over a bottom slope has to be irrotational.
The reference solution exhibit a vertical shear that is entirely due to the Stokes drift and the quasi-Eulerian velocity is homogeneous over the water column.
References:
- Ardhuin, N. Rascle and K. Belibassakis,2008, Explicit wave-averaged primitive equations using a Generalized Lagrangian Mean, Ocean Modelling
A.C. Bennis and F. Ardhuin, 2011, Comments on ‘ The Depth-Dependent Current and Wave Interaction Equations: A Revision ’, JPO
Implementation
No changes in NEMO code
Edit:
usrdef_nam.F90, usrdef_hgr.F90, usrdef_zgr.F90, usrdef_sbc.F90, usrdef_istate.F90
Documentation updates
Updates needed for the online documentation:
https://forge.ipsl.jussieu.fr/nemo/chrome/site/doc/NEMO/guide/html/test_cases.html
Preview
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Tests
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Review
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Attachments (4)
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cm_lagrangian_t906_mono_BATHY_sigma.png
(55.8 KB) -
added by amoulin 3 years ago.
Results(Lagrangian velocity)
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cm_quasieul_t906_mono_BATHY_sigma_OBC.png
(79.2 KB) -
added by amoulin 3 years ago.
Results: Quasi-eulerian velocity
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cm_stokesdrift_t906_sco_mono_bathy.png
(54.3 KB) -
added by amoulin 3 years ago.
Results: Stokes drift
- testcase_resumed.pdf (626.3 KB) - added by amoulin 3 years ago.
Download all attachments as: .zip