Based on the RANS method using unstructured grids, numerical simulations of cavitation on the DTMB propeller under uniform inflow conditions were conducted. Through numerical studies of pressure pulsations under different cavitation numbers, it was found that at low cavitation numbers, the pressure fluctuations become irregular with higher amplitude and increased noise. As the cavitation number increases, the pressure tends to stabilize and exhibits periodic fluctuations. Two linear regression models were constructed by the correlation analyzing between the spectral characteristics of the pressure pulsation signals and the operating conditions. The model for the rotational speed and shaft frequency amplitude of the 4381 propeller indicates that the amplitude of the second harmonic of the shaft frequency increases with the advance coefficient. The model for the skew angle and the fourth harmonic amplitude shows that an increase in the skew angle leads to a gradual increase in the amplitude of the fourth harmonic.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Modeling study of wake cavitation characteristics of DTMB propeller based on numerical computation


    Beteiligte:
    Chengkun, Wu (Autor:in) / Zhu, Zhifeng (Autor:in) / Bohua, Cai (Autor:in) / Yong, Yao (Autor:in)


    Erscheinungsdatum :

    01.05.2025




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Rudder Cavitation Studies at DTMB Large Cavitation Channel

    Jiang, C. W. et al. / Direction des Constructions Navales / Bassin d'Essais des Carenes | British Library Conference Proceedings | 1995


    Research on propeller cavitation wake characteristics based on multivariate statistical modeling method

    Zhou, Kun / Zhu, Zhifeng / Wang, Bing et al. | SAGE Publications | 2024


    Hydro-Acoustic Performance Prediction of DTMB 4119 Propeller

    Sezen, Savas / Delen, Cihad / Dogrul, Ali et al. | TIBKAT | 2018

    Freier Zugriff

    Ship Flow Computation of DTMB 5415

    Hsu, K. L. / Chen, Y. J. / Chau, S. W. et al. | British Library Conference Proceedings | 2005