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Urban scale infra-red radiation

Among the current development undertaken by the team: computing longwave radiation in the urban environment.

In order to improve the prediction of surface temperature levels for the calculation of building consumption or the evaluation of outdoor comfort, it is necessary to know the radiation view factors between surfaces of an urban scene.

View factor computation being time consuming, we will try to answer following question:

        How can we speed-up the process with a minimum trade-off on precision?

The possibilities yet considered are parallelism and k-means clustering.

Illustration du k-means clustering (source Wikipedia)