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Article

Flow Characteristics of Oblique Submerged Impinging Jet at Various Impinging Heights

by
Di Zhang
1,
Hongliang Wang
2,3,
Jinhua Liu
2,
Chuan Wang
1,*,
Jie Ge
4,
Yong Zhu
5,
Xinxin Chen
5 and
Bo Hu
6
1
College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225000, China
2
International Shipping Research Institute, Gongqing Institute of Science and Technology, Jiujiang 332020, China
3
School of Aerospace and Mechanical Engineering/Flight College, Changzhou Institute of Technology, Changzhou 213032, China
4
SHIMGE Pump Co., Ltd., Taizhou 317525, China
5
National Research Center of Pumps, Jiangsu University, Zhenjiang 212013, China
6
Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2022, 10(3), 399; https://doi.org/10.3390/jmse10030399
Submission received: 5 February 2022 / Revised: 4 March 2022 / Accepted: 8 March 2022 / Published: 10 March 2022
(This article belongs to the Special Issue Marine Applications of Computational Fluid Dynamics)
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Abstract

To study the influence of impinging height H/D on the flow field characteristics of oblique submerged impinging jets, the numerical calculation of an oblique submerged impinging jet was carried out based on Wray–Agarwal (W–A) turbulence model. The jet flow field structure and pressure distribution under various impinging heights (1 ≤ H/D ≤ 8) when the impinging angle was θ = 45° were analyzed. The results show that with the increase in the impinging height, the diffusion degree of the jet gradually increased and the velocity decreased when the jet reached the impingement region, and the distance between the stagnation point (SP) and the geometric center (GC) gradually increased, the flow angle φ along the jet centerline remained constant in the free-jet region and rapidly decreased in the impingement region. The impingement plate pressure distribution at various heights was similar, and the impinging pressure concentration on the upstream side of the maximum pressure point was higher.
Keywords: submerged impinging jet; turbulence model; impinging height; impinging pressure submerged impinging jet; turbulence model; impinging height; impinging pressure

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MDPI and ACS Style

Zhang, D.; Wang, H.; Liu, J.; Wang, C.; Ge, J.; Zhu, Y.; Chen, X.; Hu, B. Flow Characteristics of Oblique Submerged Impinging Jet at Various Impinging Heights. J. Mar. Sci. Eng. 2022, 10, 399. https://doi.org/10.3390/jmse10030399

AMA Style

Zhang D, Wang H, Liu J, Wang C, Ge J, Zhu Y, Chen X, Hu B. Flow Characteristics of Oblique Submerged Impinging Jet at Various Impinging Heights. Journal of Marine Science and Engineering. 2022; 10(3):399. https://doi.org/10.3390/jmse10030399

Chicago/Turabian Style

Zhang, Di, Hongliang Wang, Jinhua Liu, Chuan Wang, Jie Ge, Yong Zhu, Xinxin Chen, and Bo Hu. 2022. "Flow Characteristics of Oblique Submerged Impinging Jet at Various Impinging Heights" Journal of Marine Science and Engineering 10, no. 3: 399. https://doi.org/10.3390/jmse10030399

APA Style

Zhang, D., Wang, H., Liu, J., Wang, C., Ge, J., Zhu, Y., Chen, X., & Hu, B. (2022). Flow Characteristics of Oblique Submerged Impinging Jet at Various Impinging Heights. Journal of Marine Science and Engineering, 10(3), 399. https://doi.org/10.3390/jmse10030399

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