The Orientation Effect of the Agricultural Tunnel Greenhouse on Aerodynamic and Energy Properties

The aim of this present numerical study is to investigate the effect of solar radiation intensity and the variation of the wind velocity direction on the inside greenhouse temperature profile. The very important aerodynamic phenomenon which can be highlighted in this work, is to distinguish the three known laminar, transitory and turbulent air flow patterns and their simultaneous influence on temperature behavior that have compared with drag coefficient evolution according to Reynolds number variation. Using the Fluent software to resolve our problem aero-dynamical and thermal variation phenomena that occurred in the greenhouse environment have been combined. Where, the finite volume method was adopted to carry out the fullness elliptic partial differential equation problem. Where, the three dimensional mesh grid has been used to determine the computational domain geometry of the greenhouse section, moreover the external medium around the bluff body. The numerical study of the agricultural tunnel greenhouse exposed to a three-dimensional of air flow taken account in this work has been considered with two directions longitudinal and transversal at different values of the wind speed. The evolution of the temperature inside the greenhouse is influenced by the latter. Furthermore, the drag coefficient evolution with the wind velocity has been studied, and found in good agreement with the literature.