Laboratory modelling of the canopy flows

Any science resorts to the laboratory simulation of objects under investigation on small scale models to reduce the expenses for getting the data, to get them with regard to wider or particular conditions or regimes, to discover new governing physical laws, and examine a design solution before its practical use. 

A need in modeling criteria appears when one deals with simulations. Such dimensionless criteria may be only derived from the governing equations. In such a way, we arrive at the necessity to learn the mathematical models of particular penetrable roughnesses. Some possible models will be discussed in the chapter 3.1. 

We noticed that the flow field features have been entirely common for the EPRs of different nature and include 

Such an insight gives the base not only for the theoretical modeling, but also for the simulation of any EPR on the laboratory scale. The latter may be realized with water or air as the carrying medium and in hydraulic flumes or in wind tunnels, correspondingly. 

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