Differences
This shows you the differences between two versions of the page.
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| timesteps [2024/03/07 09:10] – enviadmin | timesteps [2024/03/07 09:11] (current) – enviadmin | ||
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| ===== Purpose ===== | ===== Purpose ===== | ||
| In former versions, the main time step was fixed to 10s. It has turned out that this time step can be too large for certain cases which causes troubles in form of numerical instabilities. Therefore, ENVI-met provides now a dynamic adaptation of the main time step. The criteria for time step selection is the height of the sun. | In former versions, the main time step was fixed to 10s. It has turned out that this time step can be too large for certain cases which causes troubles in form of numerical instabilities. Therefore, ENVI-met provides now a dynamic adaptation of the main time step. The criteria for time step selection is the height of the sun. | ||
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| - | **We highly recommend the usage of this feature. It is a default setting now.** | ||
| Smaller time steps are normally required when the solar input is high, whereas bigger ones can be used in the morning or evening. The solar height is divided into **3 intervals**, | Smaller time steps are normally required when the solar input is high, whereas bigger ones can be used in the morning or evening. The solar height is divided into **3 intervals**, | ||