Earticle

초록

영어

In this study an attempt has been made to study the hydrodynamic performance of pumpjet propulsor. Numerical investigation based on the Reynolds Averaged Navier-Stokes (RANS) computational fluid dynamics (CFD) method using structured grid, SST k-ω turbulence model has been carried out. The grid independence inspection is applied to verify accuracy of numerical simulation. The numerical predictions of hydrodynamic performance for pumpjet propulsor are carried out with different advance ratios. Results show that the coefficient curves of thrust and torque that indicates the rotor provides the main thrust of propulsor and the balance performance of propulsor is generally satisfactory. Additionally, the curve of propulsor efficiency is in good agreement with experimental data. Furthermore, the pressure distributions around rotor and stator blades are reasonable. Beyond that, the existence of tip clearance accounts for the appearance of tip vortex that leads to a further loss in efficiency and a probability of cavitation phenomenon.

목차

Abstract
 1. Introduction
 2. Numerical Simulation Method
  2.1. Governing Equations
  2.2. Turbulence Model
 3. Computational Model and Grid
  3.1. Model Geometry and Computational Domain
  3.2. Grid Generation
  3.3. Boundary Condition
 4. Results and Discussion
  4.1. Grid Independent Inspection
  4.2. Cfd Results and Discussion
 5. Conclusions
 References

키워드

저자

• Guang Pan [ School of Marine Science and Technology, Institute of Underwater Vehicle, Northwestern Polytechnical University, Xi’an, 710072, China ]
• Lin Lu [ School of Marine Science and Technology, Institute of Underwater Vehicle, Northwestern Polytechnical University, Xi’an, 710072, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Control and Automation

• 간기

  월간

• pISSN

  2005-4297

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605