Numerical study of downwash flow on rice plant protection drone with computational fluid dynamics method

Mohamad Yamin; Muhammad Zidan Alfasha

doi:10.30811/jpl.v22i4.5036

Numerical study of downwash flow on rice plant protection drone with computational fluid dynamics method

Mohamad Yamin, Muhammad Zidan Alfasha

Abstract

Unnamed Aerial Vehicles (UAVs) are growing for various implementations. The agricultural sector implements to support the fulfillment of food needs. UAV, as a tool, streamlines the work process. In this case, the spraying method uses the UAV for plant protection. Therefore, this paper aims to determine the characteristics of the downwash flow, which is influenced by several factors, namely flight altitude, airfoil profile, and the flying speed of the drone. The method used in this research is numerical with Computational Fluid Dynamics (CFD) using drone geometry and input boundary conditions according to environmental conditions. The drone’s flying height will significantly affect the downwash flow related to the IGE (In Ground Effect) and OGE (Out of Ground Effect) conditions. The airfoil propeller profile is related to aerodynamic characteristics. The drag and lift coefficient will affect the downwash flow, as seen from the side of the airfoil geometry. Then, the drone’s flying speed, which will also be related to the relative wind speed around the drone’s work, will affect the pressure distribution and downwash flow speed. Some of these factors that significantly affect the downwash flow will simultaneously affect the floor for plant protection droplets distributed on the rice field so that the area covered by the plant protection flow can be predicted.

Keywords

Plant protection; spray; CFD; Drone; Downwash; UAV

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DOI: http://dx.doi.org/10.30811/jpl.v22i4.5036