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For the simulation of turbulent flows in the atmosphere


MicroHH is a computational fluid dynamics code made for Direct Numerical Simulation (DNS) and Large-Eddy Simulation (LES) of turbulent flows in the atmosphere. The code is written in C++.

MicroHH is hosted on GitHub. There, the latest version of the source code can be found, as well as all releases, a bug tracker, and wiki pages to help you get started. In case of any questions, please contact Chiel van Heerwaarden (chielvanheerwaarden at

MicroHH is described in detail in van Heerwaarden et al. (2017). In case you decide to use MicroHH for your own research, the developers would appreciate to be notified and kindly request to cite their reference paper.

View the code at Github » Bug tracker » Wiki pages »


From time to time we post animations in our Vimeo channel. The HD versions can be watched at the Vimeo website.

View all animations on Vimeo »

MicroHH activity map

Publications using MicroHH