Application of Coanda Effect in Water Jet Propulsion Devices

In order to improve the problem of low efficiency of water jet propulsion devices at low speeds, a special multi-ring structure of water jet propeller nozzle is designed based on the Coanda effect. On the basis of the credibility of numerical calculation methods, the hydraulic performance of the spe...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-03, Vol.1846 (1), p.12095
Main Authors: Chen, Shoutian, Cheng, Xuan, Zhang, Yan, Ouyang, Wu
Format: Article
Language:English
Subjects:
Coanda effect
Computational fluid dynamics
Dynamic structural analysis
Hydraulic jets
Jet propulsion
Nozzles
Numerical methods
Physics
Propellers
Ring structures
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Summary:In order to improve the problem of low efficiency of water jet propulsion devices at low speeds, a special multi-ring structure of water jet propeller nozzle is designed based on the Coanda effect. On the basis of the credibility of numerical calculation methods, the hydraulic performance of the special structure is analyzed by using the method of computational fluid dynamics. The results show that the designed structure can effectively improve the problem of low efficiency of water jet propellers at low speeds, which is of great significance to better the performance of water jet propellers.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1846/1/012095