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Cold-thermal wake characteristics of submarine in temperature-density stratified seawater
Author(s): Xusheng Zhang; Liang Guo; Richa Hu; Chunlong Liu
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Paper Abstract

In this paper, the three-dimensional calculation model of 1/72 LSII submarine is established by finite volume method, and combining frame motion, user-defined function and polynomial profile, the simulation of propeller rotation and temperature-density stratified seawater are realized. Based on this model, the effects of diving depth, sailing speed and wake velocity on cold-thermal wake characteristics are analyzed. The conclusions are as follows. 1) Considering the temperature-density stratified seawater is a sufficient and necessary condition for simulating the cold-thermal wake characteristics of submarine. 2) Submarine perturbs the low-temperature seawater to form the cold wake, then the cold wake and the thermal wake are superimposed to form the cold-thermal wake characteristics in downstream sea-surface. 3) Cold wake characteristics of upstream sea-surface are related to the diving depth directly, but aren’t related to the sailing speed and wake velocity. The contents above could provide reference for the high-precision simulation of submarine’s cold-thermal wake characteristics.

Paper Details

Date Published: 12 March 2019
PDF: 6 pages
Proc. SPIE 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 1102356 (12 March 2019); doi: 10.1117/12.2521927
Show Author Affiliations
Xusheng Zhang, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Liang Guo, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Richa Hu, Changchun Institute of Optics, Fine Mechanics and Physics (China)
Chunlong Liu, Changchun Institute of Optics, Fine Mechanics and Physics (China)


Published in SPIE Proceedings Vol. 11023:
Fifth Symposium on Novel Optoelectronic Detection Technology and Application
Qifeng Yu; Wei Huang; You He, Editor(s)

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