Influence of the laminar-turbulent transition on the accuracy of the propeller characteristics prediction in the model scale

Taranov, A.; Lobachev, M.

doi:10.1109/polyakhov.2015.7106783

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…After that, Baltazar et al [20] analyzed the turbulence behavior of the turbulence model and the transition model for several Reynolds number. Taranov et al [21] and Bhattacharyya et al [22] showed that the result of the transition model was more similar to the experiment by comparing the POW test result corresponding to the Reynolds number of the transition region and the computation result using the fully turbulent model and the transition model.…”

Section: Numerical Modelingmentioning

confidence: 83%

Experimental and Numerical Study on the Performance Change of a Simple Propeller Shape Using the Coanda Effect

et al. 2021

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In this study, a jet injection propeller was designed to increase its efficiency, and the results were compared by open water tests and numerical computations. Also, the change in shape of the slit and injection volume conditions, which are difficult to perform experiments with, were analyzed through computations. The jet injected from the blade surface generates additional thrust due to the Coanda effect, and the jet injection generates a moment in the direction of propeller rotation, resulting in a decrease in the total torque. Computations were performed for three slit heights. When the height of the slit is high, the efficiency of the propeller increases, even if the power of the pump required for jet injection is considered. The result was found to increase the efficiency by about 8.7%, even when the efficiency was compared under the condition of generating the same thrust by controlling the injection volume of the jet by designing a normal propeller that does not inject a jet.

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Section: Numerical Modelingmentioning

confidence: 83%

Experimental and Numerical Study on the Performance Change of a Simple Propeller Shape Using the Coanda Effect

et al. 2021

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Numerical simulation of cavitating flows in shipbuilding

Bagaev¹,

Yegorov²,

Lobachev³

et al. 2018

AIP Conference Proceedings

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Validation of the LOGOS Software Package Methods for the Numerical Simulation of Cavitational Flows

Козелков

Kurkin

Курулин

et al. 2023

Fluids

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Verification problems and numeric simulation of cavitation processes with the help of LOGOS computational fluid dynamics software are presented in this article. The Volume of Fluid method realized within LOGOS allowing numerical simulation of double-phase problems with a free surface is used for numeric simulation. Cavitation is resolved by updating the method with the account for interphase mass exchange; its condensation and evaporation parameters are calculated with the use of the Schnerr–Sauer and Zwart–Gerber–Belamri cavitation models. Numerical simulation results of most actual test problems considering turbulence and having reliable numerical data are presented, including simulations of flow around cylinders with flat and hemispherical end surfaces for various cavitation numbers. Numerical simulation results are presented for the process of rotation of a VP1304 screw propeller in the cavitational mode. Numerical experiments prove the operability of the implemented method.

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Influence of the laminar-turbulent transition on the accuracy of the propeller characteristics prediction in the model scale

Cited by 3 publications

References 2 publications

Experimental and Numerical Study on the Performance Change of a Simple Propeller Shape Using the Coanda Effect

Experimental and Numerical Study on the Performance Change of a Simple Propeller Shape Using the Coanda Effect

Numerical simulation of cavitating flows in shipbuilding

Validation of the LOGOS Software Package Methods for the Numerical Simulation of Cavitational Flows

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