Portal de Periódicos da CAPES

DESIGN OF A RECYCLING TUNNEL SPRAYER USING CFD SIMULATIONS

2005; Volume: 48; Issue: 2 Linguagem: Inglês

10.13031/2013.18309

2151-0059

Giovanni Molari, Luca Benini, G. Ade,

Hydrology and Sediment Transport Processes

Tunnel sprayers have the potential to reduce both drift and runoff. However, it has proven difficult to design atunnel sprayer that distributes spray uniformly on the trees and with a significant reduction in losses to the ground. Afterfocusing on the main imperfections of existing tunnel sprayers, a method for checking sprayer performance and building animproved prototype of recycling tunnel sprayer is discussed and tested. The stages are described, starting from the design,using computational fluid dynamics (CFD), to the construction of the prototype. The model is then validated withexperimental measurements and preliminary field tests. The results obtained in the absence of vegetation show that thesprayer was effective in reducing losses, increasing the recovery of sprayed liquid up to 95%, and providing good distributionuniformity.