Rainfall properties and drop spectra characterisation is essential when designing and using rainfall simulators to properly replicate the rainfall natural characteristics. This study considered a small-scale rainfall simulator operating under varying nozzle, pressure and rotating disk scenarios. A Dynamic Rainfall Gauge System developed at the Federal University of Lavras was used to quantify the impact velocity of rainfall droplets and kinetic energy, and to conduct radial uniformity analyses. The results showed that the rainfall intensity, impact velocity of droplets, kinetic energy, uniformity distribution of rainfall are influenced by the effects of spray nozzle, operating pressure and the rotating disc opening of the rainfall simulator. Lower values of simulated rainfall kinetic energy were observed when compared to the empirical natural rainfall kinetic energy at equivalent rainfall intensities. This paper highlights the influence of rainfall simulator design specifications on resultant rainfall spectra and validates simulated rainfall against empirically based natural rainfall characteristics.
No takes yet. Share an insight, caveat, or question.
Costa et al. (2024) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: