Multiphase Flow Simulation of ITTC Standard Cavitator for Underwater Radiated Noise Prediction

Autor: Antti Hynninen, Ville Viitanen, Jukka Tanttari, Rhena Klose, Claudio Testa, Jussi Martio

Publikováno v: Journal of Marine Science and Engineering, Vol 11, Iss 4, p 820 (2023)

This work focuses on the main issues related to noise measurements in cavitation tunnels. The scope of the paper is to twofold: to obtain a better understanding on the main phenomena underlying experiments and to define consistent cavitation tunnel m

Externí odkaz: https://doaj.org/article/2e97d592cf344309a90e6adb22daa1f0

DDES of Wetted and Cavitating Marine Propeller for CHA Underwater Noise Assessment

Autor: Ville M. Viitanen, Antti Hynninen, Tuomas Sipilä, Timo Siikonen

Publikováno v: Journal of Marine Science and Engineering, Vol 6, Iss 2, p 56 (2018)

In this paper we present results of delayed detached eddy simulation (DDES) and computational hydroacoustics (CHA) simulations of a marine propeller operating in a cavitation tunnel. DDES is carried out in both wetted and cavitating conditions, and w

Externí odkaz: https://doaj.org/article/e048984044bb43debab1207cdf3451cf

Computational fluid dynamics and hydroacoustics analyses of underwater radiated noise of an ice breaker ship

Autor: Ville Viitanen, Antti Hynninen, Tuomas Sipilä

Publikováno v: Viitanen, V, Hynninen, A & Sipilä, T 2023, ' Computational fluid dynamics and hydroacoustics analyses of underwater radiated noise of an ice breaker ship ', Ocean Engineering, vol. 279, 114264 . https://doi.org/10.1016/j.oceaneng.2023.114264

Flow and acoustics analyses have been carried out for an ice breaker ship. The numerical acoustic solution relies on the computational fluid dynamics simulations with regard to the sound generation. The numerical method for acoustics is based on a wa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6357c870161c64370d2d943ff6cc5af
https://doi.org/10.1016/j.oceaneng.2023.114264

Additive Manufacturing of Silencers with Microperforates

Autor: Seppo Uosukainen, Erin Komi, Virpi Hankaniemi, Mikko Matalamäki, Heikki Isomoisio, Jukka Tanttari, Antti Hynninen

Publikováno v: Tanttari, J, Komi, E, Hynninen, A, Isomoisio, H, Uosukainen, S, Hankaniemi, V & Matalamäki, M 2018, ' Additive Manufacturing of Silencers with Microperforates ', Advances in Acoustics and Vibration, vol. 2018, 7649756 . https://doi.org/10.1155/2018/7649756
Advances in Acoustics and Vibration, Vol 2018 (2018)

A microperforated panel (MPP) is generally defined as a perforated plate, in which the impedance of below one millimetre perforations is dominated by viscous losses. Using MPPs in duct and silencer applications, target is to maximize transmission los

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44ed07ff18594cb8757cf9a821205685
https://cris.vtt.fi/en/publications/850dfa94-5c16-4c46-9062-ea1a1375d8b1

CFD and CHA simulation of underwater noise induced by a marine propeller in two-phase flows

Autor: Ville Viitanen, Antti Hynninen, Lars Lübke, Rhena Klose, Jukka Tanttari, Tuomas Sipilä, Timo Siikonen

Publikováno v: Viitanen, V, Hynninen, A, Lübke, L, Klose, R, Tanttari, J, Sipilä, T & Siikonen, T 2017, CFD and CHA simulation of underwater noise induced by a marine propeller in two-phase flows . in A Sánchez-Caja (ed.), Proceedings of the Fifth International Symposium on Marine Propulsors : SMP '17 . vol. 3, VTT Technical Research Centre of Finland, International Symposiums on Marine Propulsors, vol. 5, 5th International Symposium on Marine Propulsors, SMP'17, Espoo, Finland, 12/06/17 . < http://www.marinepropulsors.com/proceedings/2017/MA3-2.pdf >
VTT Technical Research Centre of Finland-PURE

A propeller in uniform homogeneous inflow is studied numerically utilizing computational fluid dynamics (CFD) and computational hydroacoustics (CHA). The investigations are performed at one propeller loading in wetted and cavitating conditions. The t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::074193a30bd1f4563710301b78caf660
https://cris.vtt.fi/en/publications/344fa7c8-90fb-46ab-b35e-480a255b79e7