| Numerical Investigation of Cavitation in a Venturi with Placed Obstacles |
| کد مقاله : 1464-ISME2025 |
| نویسندگان |
|
محمد سعادت بخش *1، فلاح محمودی2، مصطفی اسماعیلی1 1عضو هیئت علمی گروه مکانیک دانشگاه خوارزمی 2دانشجوی کارشناسی ارشد مهندسی مکانیک گرایش تبدیل انرژی دانشگاه خوارزمی |
| چکیده مقاله |
| Hydrodynamic cavitation is recognized as a novel and eco-friendly advanced oxidation process, widely applied in industries such as wastewater treatment, disinfection, flotation, etc. Research on the optimization and enhancement of hydrodynamic cavitation intensity continues to be an emerging and expanding field of study. In this study, we investigate the effects of introducing obstacles in the divergent section of a Venturi on the intensity of cavitation, focusing on the position, height, and number of obstacles. The simulations were conducted using ANSYS Fluent in a two-dimensional, incompressible, and transient framework, employing the Reynolds-Averaged Navier-Stokes (RANS) approach with the k-ω SST turbulence model. The Schnerr and Sauer cavitation model was used to simulate cavitation phenomena. The results showed good agreement with experimental data, revealing that the presence of two obstacles had the most significant impact on enhancing cavitation intensity. This configuration generated the largest low-pressure region and highest velocity among all the designs, resulting in a 413% increase in the average vapor volume fraction. Conversely, the presence of three obstacles did not lead to a significant improvement in cavitation intensity. |
| کلیدواژه ها |
| Hydrodynamic cavitation, Venturi, Water treatment, Computational fluid dynamics |
| وضعیت: پذیرفته شده برای ارائه شفاهی |