Abstract
The use of drones in different economic sectors has become a usual thing at present, being present in a varied and diverse range from a constructive point of view. A special attention is given for agricultural sector where drones can be used for: plant protection and pest control, vegetative crop surveillance, disease and pest estimation, surveillance, etc. However, the big problem that characterizes the performance of a drone remains the flight autonomy, autonomy directly related to the drone’s own weight and the configuration of the propulsion system. The paper aims to use computerized numerical analysis methods to study the effect of the relative positioning of a drone’s rotor, inside the nacelle, to characterize (and study) the flow characteristics of the airflow. The parameters considered in the study for the comparative evaluation of the research hypothesis are related to the parameters that characterize the dynamic flow of airflow (airspeed and pressure). Based on the results obtained the researches can be further developed by modifying the geometric construction of the rotor nacelle in order to optimize the flow of airflow used for crops’ spraying process.
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