Heat transfer in pipes has an important place in the industry. For this purpose, many studies have been carried out to investigate the effects of elements with different geometries placed in the pipe on the heat transfer characteristics. In this study, the effects of umbrella-shaped turbulators with different angles on the heat transfer characteristics, placed in a horizontal pipe with a constant heat flux from its surface, were investigated numerically. When the results of the study were examined, it was determined that the heat transfer was higher in cases where the umbrella opening was higher than in other cases.
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