| 1 | example_wtm |
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| 2 | |
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| 3 | 1. Purpose |
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| 4 | This example shows the application of enhanced actuator disc wind turbine models in PALM |
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| 5 | The model is based on blade elements and conversion of airfoil lift |
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| 6 | and drag coefficients from the NREL 5MW reference turbine (see Jonkman et al. 2009: |
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| 7 | Technical Report NREL/TP-500-38060, doi:10.2172/947422) to local forces on the flow. |
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| 8 | The example simulates 4 different turbines in laminar flow that correct their orientation |
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| 9 | after 30s of simulated time by use of a yaw controller. |
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| 10 | |
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| 11 | 2. PALM-Version / SVN Revision |
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| 12 | PALM 4.0 / SVN Revision 2272 |
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| 13 | |
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| 14 | 3. Required user code |
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| 15 | No user code is required |
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| 16 | |
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| 17 | 4. Input: |
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| 18 | example_wtm_p3d: Cyclic lateral boundary conditions are used. The 3d-model is initialized with |
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| 19 | constant temperature and constant laminar flow. |
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| 20 | example_wtm_wtm: The property file of the NREL 5MW model turbine has also to be copied to the |
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| 21 | local INPUT folder, it will be automatically read by PALM |
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| 22 | |
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| 23 | 5. Preprocessing |
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| 24 | No preprocessing is required. |
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| 25 | |
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| 26 | 6. Program start |
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| 27 | Modifications to .mrun.config: |
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| 28 | No modifications are necessary if you use one of the default .mrun.config-files in trunk/SCRIPTS/. |
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| 29 | In case you want to use your own (older) .mrun.config-file, you will have to add the following |
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| 30 | lines in your .mrun.config file: |
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| 31 | In "List of input-files": |
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| 32 | WTM_DATA in:locopt d3#:d3f $base_data/$fname/INPUT _wtm |
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| 33 | In "List of output-files": |
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| 34 | TURBINE_PARAMETERS01 out:loc:tr d3#:d3f $base_data/$fname/MONITORING _turbine_parameters01 |
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| 35 | TURBINE_PARAMETERS02 out:loc:tr d3#:d3f $base_data/$fname/MONITORING _turbine_parameters02 |
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| 36 | TURBINE_PARAMETERS03 out:loc:tr d3#:d3f $base_data/$fname/MONITORING _turbine_parameters03 |
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| 37 | TURBINE_PARAMETERS04 out:loc:tr d3#:d3f $base_data/$fname/MONITORING _turbine_parameters04 |
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| 38 | |
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| 39 | mrun call (example for lccrayh): |
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| 40 | mrun -d example_wtm -h lccrayh -K parallel -X 64 -T 24 -t 2000 -q mpp1testq -r "d3# ts# ma#" |
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| 41 | |
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| 42 | 7. Monitoring: |
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| 43 | example_wtm_rc and TURBINE_PARAMETERS01-04 should be equal to the attached files when run at |
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| 44 | Cray System of HLRN Berlin. For other systems the deviations should be small. |
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| 45 | |
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| 46 | 8. Postprocessing |
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| 47 | No postprocessing of the data is required. |
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| 48 | |
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| 49 | 9. List of attachments |
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| 50 | example_wtm_p3d |
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| 51 | example_wtm_wtm |
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| 52 | lccrayb_example_wtm_rc |
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| 53 | lccrayb_example_wtm_turbine_parameters01 |
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| 54 | lccrayb_example_wtm_turbine_parameters02 |
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| 55 | lccrayb_example_wtm_turbine_parameters03 |
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| 56 | lccrayb_example_wtm_turbine_parameters04 |
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