Spray drifts have been studied by mathematical models and computer simulations as an
essential complement to lab and field tests, among which are fluid dynamic approaches that …

果园风送喷雾技术与装备正在朝着精准化和智能化方向发展. 果园喷雾控制对象主要为喷施药量
和风力供给量, 二者需要协同精准调控, 其按需调控的前提是果园靶标精准探测 …

Thrusters are the bottom actuators of the amphibious spherical robot, and play an important
role in the motion control of these robots. To realize accurate motion control, a thrust model …

With the increase in orchard areas and the transfer of rural labor, various air-assisted
sprayers have been widely used in China. However, the problem of off-target drift still exists …

Highlights•2D simulation including effects of tree characteristic, air-assistance and
wind.•Kinetics and evaporation related variables obtained to describe droplet …

A computational fluid dynamics (CFD) model for simulating the air flow produced by an air-
assisted sprayer can be developed according to any one of several sets of criteria and for …

BACKGROUND A key challenge for unmanned aerial vehicle (UAV) spraying sometimes
used in tea plantations is the downwash flow structure there stronger than in crops. In …

The current standard for the field measurements of spray drift (ISO 22866) is the only official
standard for drift measurements in field conditions for all type of crops, including bushes and …

Highlights•Trajectory and velocity of a jet in crossflow agreed well with experimental
data.•Droplet deposition on collector lines in drift simulations was predicted well.•Multi …

The study presents the results of the correlation and regression of the deposition of liquid
and the degree of coverage of sprayed objects. Preliminary experiments were conducted in …