Flow dynamics in the closure region of an internal ship air cavity

@article{Mukha2020FlowDI,
  title={Flow dynamics in the closure region of an internal ship air cavity},
  author={Timofey Mukha and Rickard E. Bensow},
  journal={arXiv: Fluid Dynamics},
  year={2020}
}
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8 Citations

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References

SHOWING 1-10 OF 46 REFERENCES

Hydrodynamics of a Displacement Air Cavity Ship

To study the resistance reduction of an air cavity for a displacement vessel, a simplified model of a single cavity is tested in a cavitation tunnel. The drag force acting on the cavity and the…

INVESTIGATION OF NUMERICAL SCHEMES IN AIR CAVITY COMPUTATIONS

Air cavity and air chamber concepts have been proven to be an efficient way for drag reduction in low-speed ships. Series of experiments were conducted in the SSPA cavitation tunnel to simulate the…

Numerical and experimental investigation of a planing Air Cavity Ship and its air layer evolution

Transom effect on the properties of an air cavity under a flat-bottom hull

One of the promising methods for ship drag reduction relies on air cavities generated under ship hulls. The air-cavity characteristics are sensitive to the hull geometry and flow conditions. In this…

Study of air-ventilated cavity under model hull on water surface

Direct numerical simulation of a turbulent hydraulic jump: turbulence statistics and air entrainment

We present direct numerical simulation (DNS) of a stationary turbulent hydraulic jump with inflow Froude number of 2, Weber number of 1820 and density ratio of 831, consistent with ambient water–air…

Numerical study of the effect of ship attitude on the perform of ship with air injection in bottom cavity

  • W. Hao
  • Engineering
    Ocean Engineering
  • 2019

Friction Drag Reduction of External Flows with Bubble and Gas Injection

The lubrication of external liquid flow with a bubbly mixture or gas layer has been the goal of engineers for many years, and this article presents the underlying principles and recent advances of…

Partial cavity drag reduction at high reynolds numbers

Air lubrication to reduce hull skin friction is an idea that originated more than a century ago. There are few implementations of this concept, and there are even fewer systematic investigations at…

Computational fluid dynamics of dispersed two-phase flows at high phase fractions

This study describes the development and validation of Computational Fluid Dynamics (CFD) methodology for the simulation of dispersed two-phase flows. A two-fluid (Euler-Euler) methodology previously…