Numerical study on the effect of angle variation of convergent-divergent ejector-nozzle for salt dispersion from ground-based on weather modification process.

Autor: Helios, Muhammad Penta, Adhitya, Krisna, Simanjuntak, Tarida Priskila Hasian, Sutriyanto, Himawan, Fathoni, Andhy Muhammad, Komara, Riki Jaka, Maswan, Achmad, Nuryadin, Bhakti, Sumarah, Kanon Prabandaru, Arthanto, Dwi Handoko, Uttariyani, I. G. A., Pujowidodo, Hariyotejo, Prasetyo, Bambang Teguh
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Zdroj: AIP Conference Proceedings; 2024, Vol. 2859 Issue 1, p1-12, 12p
Abstrakt: A numerical study on the effect of angle variation of convergent-divergent ejector-nozzle for salt dispersion from ground-based on the weather modification process is presented in this paper. Forest and land fires in Indonesia are problems that routinely occur every year, especially during the dry season. A weather modification process is usually done by dispersing salt above the cloud. Due to the expensive cost of the working process, a ground-based tool called convergent-divergent ejector-nozzle to disperse the salt from the ground has been developed. A 3-dimensional analysis of fluid dynamics using computational fluid dynamics software has been done to study 4 different ejector models which can disperse the salt and reach the target height. From this simulation, the convergent-divergent ejector-nozzle was confirmed to be the best model. A further computational fluid dynamics analysis was done using 2-dimensional simulation to know the effect of angle variation on the performance of convergent-divergent ejector-nozzle. It was found that the convergent-divergent ejector-nozzle has the potential to throw the salt to 25 m height with a flow velocity of 2 m/s. However, when the angle of the secondary flow pipe was changed, there was no apparent effect on the noise level, jet flow velocity level and entrainment ratio. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index