Thermal fluid dynamics of water droplet in sprinkler irrigation : Phenomenological analysis and modelling
Contributo in Atti di convegno
Data di Pubblicazione:
2007
Citazione:
Thermal fluid dynamics of water droplet in sprinkler irrigation : Phenomenological analysis and modelling / G. Lorenzini, D. De Wrachien - In: Proceedings of the 35. International Symposium on Agricultural Engineering
"Actual Tasks on Agricultural Engineering" / S. Kosutic ; [a cura di] N. Mihailov, S. Kosutic, R. Zimmer,
H. D. Kutzbach, P. Schulze-Lammers, K. T. Renius, D. De Wrachien, E. Gasparetto,
L. Opara, M. Wang, V. Ros, J. Ortiz-Canavate, V. Salokhe, B. Stout. - Zagreb : null, 2007 Feb. - pp. 43-52 (( Intervento presentato al 35. convegno International Symposium "Actual Tasks on Agricultural Engineering" tenutosi a Opatija , Croatia nel 2007.
Abstract:
A thorough understandingof the factors affecting spray flow and evaporation losses in sprinkler irrigation is important for developing appropriate water conservation strategies. To properly tackle this problem ,relevant theoretical and experimental studies have been carried out during the second half of the last century.
Notwithstanding all these efforts, the phenomenon of aerial evaporation of droplets
exiting from a nozzle has not been fully understood yet and something new has to be added to the description of the process to reach a better assessment of the events.
To this end, a mathematical model for irrigation sprinkler droplet ballistics , based on a simplified dynamic approach to the
phenomenon ,has been presented. The model proves to fully match the kinematic results obtained by more complicated procedures.
Moreover,fiel trials showed the model to reliably estimate spray evaporation losses caused by environmental conditions. Further analytical and experimental activities are needed to gain a better understanding of water flow and waste in sprinkler irrigation practice.
Tipologia IRIS:
03 - Contributo in volume
Keywords:
Thermal fluid dynamics ; mathematical models ; sprinkler irrigation ; Water droplet ; travel distance ; time of flight ;
evaporation
Elenco autori:
G. Lorenzini, D. De Wrachien
Link alla scheda completa:
Link al Full Text:
Titolo del libro:
Proceedings of the 35. International Symposium on Agricultural Engineering
"Actual Tasks on Agricultural Engineering"
"Actual Tasks on Agricultural Engineering"