Open AccessHeat and Fluid Flow in an Open Agricultural Greenhouse in Presence of Plants
Author(s) -
Badia Ghernaout,
Saïd Bouabdallah,
Aissa Atia,
Müslüm Arıcı
Publication year - 2021
Publication title -
advances in modelling and analysis. b, signals, information, data, patterns
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.105
H-Index - 7
ISSN - 1240-4543
DOI - 10.18280/ama_b.641-401
Subject(s) - greenhouse , mechanics , convection , natural convection , heat flux , airflow , heat transfer , isothermal process , environmental science , convective heat transfer , heat transfer coefficient , flow velocity , materials science , thermodynamics , flow (mathematics) , physics , horticulture , biology
Flow convection in agriculture greenhouse is one of the most important factors on the growth and fruiting of plants. The present work focused on natural convection in an open greenhouse heated by ridge tubes in presence of plants. Analyses are performed for different boundary conditions imposed at the roof such as constant temperature, convective heat flux, and convective and radiative heat flux. The governing equations comprising continuity, momentum and energy equations are solved by Ansys-Fluent software. In each case, the average velocity and temperature of the air are determined. The obtained results are presented in terms velocity and temperature profiles. Isothermal lines and velocity vectors showed that by increasing the convective heat transfer coefficient, the average temperature and average airflow velocity decrease. The outcomes of this study help build greenhouses with dimensions and materials to suitable for the given external conditions.