@article{article_289354, title={Hesaplamalı akışkanlar dinamiği (HAD) kullanılarak farklı sera modellerindeki sıcaklık dağılımının değerlendirilmesi}, journal={Anadolu Tarım Bilimleri Dergisi}, volume={32}, pages={54–63}, year={2017}, DOI={10.7161/omuanajas.289354}, author={Cemek, Bilal and Atiş, Aslıhan and Küçüktopçu, Erdem}, keywords={Computational fluid dynamics,Natural ventilation,Greenhouse,Samsun}, abstract={<p> <span lang="en-us" style="line-height:107%;font-family:’Times New Roman’, serif;font-size:9pt;" xml:lang="en-us"> <font color="#000000">Areas of air inlet and outlet openings, orientation of
openings, height difference between air inlet and outlet openings, wind
direction, greenhouse geometry, and type of plant grown are among the many
factors that should be taken into consideration in designing an effective
ventilation system for greenhouses. In this study, five different model plastic
greenhouses with different sidewall heights, air inlet and outlet opening areas
and roof shapes were used to evaluate the ventilation efficiencies and they
were compared with a conventional type of the region. A computational fluid
dynamics (CFD) program was used to evaluate the behavior of the internal
environment (internal flow rate and temperature distributions) and natural
ventilation rates for all model greenhouses and a conventional greenhouse
involved in the study. External wind speeds of 0.5, 1, and 2 ms <sup> <font size="1">-1 </font> </sup> </font> <font color="#000000">
were used in the simulations for all conditions. The results of simulations and
experimental studies were evaluated and used for recommendation of a better
greenhouse model for this region. CFD software “FLUENT” was used to determine
the effectiveness of greenhouse ventilation system and k-ɛ Renormalization
Group (RNG) turbulence model was used in solutions. </font> </span> <br /> </p>}, number={1}, publisher={Ondokuz Mayıs University}