Numerical analyses for improved terminal velocity of deep water torpedo anchor

Boonping Soh, William Pao, Xiaohui Chen

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Purpose: This research aims to investigate the effects of manipulation of a torpedo’s geometries to attain higher terminal velocity. The parameters of interest include geometric changes of the original design, as well as sea water properties that reflect water depth in South China Sea. Design/methodology/approach: The research make use of computational fluid dynamics (CFD) software, FLUENT, to solve viscous incompressible Navier–Stokes equations with two equations k-epsilon turbulent model. The calculated drag coefficient is subsequently used to calculate the maximum attainable terminal velocity of the torpedo. Findings: It was found that the terminal velocity can be improved by sharper tip angle, greater aspect ratio, greater diameter ratio and optimum rear angle at 30°. Sensitivity of drag coefficient toward each of the parameters is established in this paper. Originality/value: The paper, in addition to verifying the importance of aspect ratio, has also established the tip angle, diameter ratio and rear angle of the torpedo as important geometric aspects that could be tuned to improve its terminal velocity.
Original languageEnglish
Pages (from-to)428-443
Number of pages16
JournalInternational Journal of Numerical Methods for Heat & Fluid Flow
Issue number2
Publication statusPublished - 21 Mar 2017
Externally publishedYes


  • Drag coefficient
  • Deepwater
  • Hydrodynamic
  • Terminal velocity
  • Torpedo anchor


Dive into the research topics of 'Numerical analyses for improved terminal velocity of deep water torpedo anchor'. Together they form a unique fingerprint.

Cite this