Simulating CoV from nozzles spray distribution: a necessity to investigate spray distribution quality with drift reducing surfactants.

J.P. Douzals (1) , A. Porte (2) , P. Fernandez (2)

1 UMR ITAP - Information – Technologies – Analyse Environnementale – Procédés Agricoles
2 Agridyne

This paper aims at showing possibilities of spraying quality control through nozzle flow distribution (CoV), especially when a drift reducing surfactant is used. The effect of nozzle height combined with hydraulic pressure was achieved considering a homothetic translation of flow rate. In all cases of FF 110 02 (standard or air injection), the evolution of CoV with nozzle height shows periodic pattern where the effect of surfactant concentration revealed critical CoV variations. As a result, the use of such surfactant shall necessarily be preceded by flow distribution evaluation in order to adjust the boom height adequately. The use of a nozzle simulator may greatly help to develop boom adjustment guidelines.

Mots clés: PULVERISATION; ADJUVANT TECHNOLOGIQUE; DERIVE; AIRE DE REPARTITION; SPRAY DISTRIBUTION; ANTI DRIFT

Domaines: Sciences de l'environnement

J.P. Douzals, A. Porte, P. Fernandez. Simulating CoV from nozzles spray distribution: a necessity to investigate spray distribution quality with drift reducing surfactants.. CIGR-AgEng2012, Jul 2012, Valencia, Spain. 6 p. ⟨hal-00764634⟩