Wyniki wyszukiwania dla: RANS SIMULATIONS - MOST Wiedzy

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Wyniki wyszukiwania dla: RANS SIMULATIONS

Wyniki wyszukiwania dla: RANS SIMULATIONS

  • Novel strategies to enhance hydrodynamic cavitation in a circular venturi using RANS numerical simulations

    Publikacja
    • N. Dutta
    • P. Kopparthi
    • A. K. Mukherjee
    • N. Nirmalkar
    • G. Boczkaj

    - WATER RESEARCH - Rok 2021

    Hydrodynamic cavitation is a popular advanced oxidation technique and it has received wide range of applications from waste water treatment to the nanoparticles synthesis in recent years. The enhancement of the intensity of the hydrodynamic cavitation is always been an emerging field of research. Within this framework, we have proposed and investigated three distinct strategies to enhance the intensity of cavitation in a circular...

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  • RANS-based design optimization of dual-rotor wind turbines

    Publikacja

    - ENGINEERING COMPUTATIONS - Rok 2018

    Purpose An improvement in the energy efficiency of wind turbines can be achieved using dual rotors. Because of complex flow physics, the design of dual-rotor wind turbines (DRWTs) requires repetitive evaluations of computationally expensive partial differential equation (PDE) simulation models. Approaches for solving design optimization of DRWTs constrained by PDE simulations are investigated. The purpose of this study is to determine...

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  • Full scale CFD seakeeping simulations for case study ship redesigned from V-shaped bulbous bow to X-bow hull form

    Publikacja

    Increasing propulsion efficiency, safety, comfort and operability are of the great importance, especially for small ships operating on windy sites like the North Sea and the Baltic Sea. Seakeeping performance of ships and offshore structures can be analysed by different methods and the one that is becoming increasingly important is CFD RANS. The recent development of simulation techniques together with rising HPC accessibility...

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  • Local Nusselt number evaluation in the case of jet impingement

    Publikacja
    • T. Kura
    • E. Fornalik-Wajs
    • J. Wajs
    • S. Kenjeres

    - Rok 2018

    Jet impingement still is one of demanding cases regarding computational fluid dynamics, due to its highly turbulent behaviour, with occurrence of turbulent-laminar transition. Even recently developed methods exhibit some drawbacks – RANS based simulations lack accuracy, LES and DNS based ones require too much computational time. Hybrid methods also exist, but their development and validation is in progress. Nevertheless, CFD application...

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