| Issue |
E3S Web Conf.
Volume 360, 2022
2022 8th International Symposium on Vehicle Emission Supervision and Environment Protection (VESEP2022)
|
|
|---|---|---|
| Article Number | 01064 | |
| Number of page(s) | 11 | |
| DOI | https://doi.org/10.1051/e3sconf/202236001064 | |
| Published online | 23 November 2022 | |
Study on underwater two-dimensional exhaust vent mode based on fixed orifice spacing and variable orifice area distribution
Naval Research Institute, 100161 Beijing, China
* Corresponding author: mrsuo@163.com
The scale parameters of bubbles produced by underwater exhaust influence the effect of the acoustic insulation. According to the dynamic characteristics in the process of underwater exhaust and the design criteria of equal flow per unit area, the two-dimensional equation of underwater exhaust was established. The analytical expressions of the orifice position and geometric parameters of the two-dimensional underwater exhaust device were obtained. The finite element models were established to compare the two vent patterns of uniform distribution and fixed orifice spacing / variable orifice area distribution. The exhaust effect was verified by circulating flume test. The simulation and experimental results show that the fixed orifice spacing and variable orifice area distribution mode can effectively control the distribution of bubbles scale parameters, and enhance the acoustic insulation effect of bubbles.
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
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