Zobrazeno 1 - 10
of 19
pro vyhledávání: '"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
Autor:
Marko Höyhtyä, Jussi Martio
Publikováno v:
Remote Sensing, Vol 12, Iss 15, p 2507 (2020)
An autonomous vessel uses multiple different radio technologies such as satellites, mobile networks and dedicated narrowband systems, to connect to other ships, services, and the remote operations center (ROC). In-ship communication is mainly impleme
Externí odkaz:
https://doaj.org/article/dcc287ec3ec74c58aa51320950ea4ac1
Publikováno v:
Sánchez-Caja, A, Martio, J, Viitanen, V M & Siikonen, T 2021, ' Simulation of turbulent effective wakes for propellers in off-design conditions by a correction factor approach ', Journal of Marine Science and Technology, vol. 26, no. 4, pp. 1014-1025 . https://doi.org/10.1007/s00773-020-00794-7
Journal of Marine Science and Technology
Journal of Marine Science and Technology
This paper presents a procedure for the estimation of propeller effective wakes in oblique flows. It shows how a recently developed method for controlling coupling errors can be applied to analyze propellers operating in off-design conditions. The ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2335795a716e452da999ac21a651ff5
https://doi.org/10.1007/s00773-020-00794-7
https://doi.org/10.1007/s00773-020-00794-7
Autor:
Jussi Martio, Marko Hoyhtya
Publikováno v:
Höyhtyä, M & Martio, J 2020, ' Integrated satellite-terrestrial connectivity for autonomous ships : Survey and future research directions ', Remote Sensing, vol. 12, no. 15, 2507 . https://doi.org/10.3390/RS12152507
Remote Sensing, Vol 12, Iss 2507, p 2507 (2020)
Remote Sensing, Vol 12, Iss 2507, p 2507 (2020)
An autonomous vessel uses multiple different radio technologies such as satellites, mobile networks and dedicated narrowband systems, to connect to other ships, services, and the remote operations center (ROC). In-ship communication is mainly impleme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53aaf7072fd65ec190867d3e17b6f7a2
https://cris.vtt.fi/en/publications/b5f344a8-3aff-431c-a32f-fedbbea9484c
https://cris.vtt.fi/en/publications/b5f344a8-3aff-431c-a32f-fedbbea9484c
Publikováno v:
Sanchez Caja, A, Martio, J & Viitanen, V 2022, ' A New Propulsion Concept for High Propulsive Hydrodynamic Efficiency ', Ocean Engineering, vol. 243, 110298 . https://doi.org/10.1016/j.oceaneng.2021.110298
A novel marine propulsor concept is presented for high hydrodynamic efficiency. Optimum performance is sought by thrust-producing counter-flapping foils cyclically oscillating along a closed trajectory. The thrusting device exhibits low propulsion lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::caf0a375d4519f833d9a851fc47758ea
https://doi.org/10.1016/j.oceaneng.2021.110298
https://doi.org/10.1016/j.oceaneng.2021.110298
Autor:
Jussi Martio, Antonio Sánchez-Caja
Publikováno v:
Sánchez-Caja, A & Martio, J 2017, ' On the optimum performance of oscillating foil propulsors ', Journal of Marine Science and Technology, vol. 22, no. 1, pp. 114-124 . https://doi.org/10.1007/s00773-016-0397-7
The design of oscillating foil propulsors is considerably more complex than that of conventional propellers due to the large amount of geometric and kinematic parameters involved in the problem. No general use of such promising propulsion concept is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b92167b83277704fb0017057d15bdbb7
https://doi.org/10.1007/s00773-016-0397-7
https://doi.org/10.1007/s00773-016-0397-7
Publikováno v:
Martio, J, Sánchez-Caja, A & Siikonen, T 2017, ' Open and ducted propeller virtual mass and damping coefficients by URANS-method in straight and oblique flow ', Ocean Engineering, vol. 130, pp. 92-102 . https://doi.org/10.1016/j.oceaneng.2016.11.068
The virtual mass and damping coefficients of an open and ducted propeller are determined using URANS computations. Time-accurate simulations are carried out for an open propeller forced to harmonic motion in two separate directions, translational x1-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::692a33462956d894acc81217590ce8b3
https://doi.org/10.1016/j.oceaneng.2016.11.068
https://doi.org/10.1016/j.oceaneng.2016.11.068
Publikováno v:
Sánchez-Caja, A, Martio, J & Siikonen, T 2019, ' A coupled potential–viscous flow approach for the prediction of propeller effective wakes in oblique flow ', Journal of Marine Science and Technology, vol. 24, no. 3, pp. 799-811 . https://doi.org/10.1007/s00773-018-0588-5
This paper presents a method for the estimation of propeller effective wakes in oblique flows. It extends to inclined flows an approach based on correction factors previously developed for the estimation of effective wakes in straight flow. The appro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcdb5952ff3c58301cebf0fcdb2afc2d
https://cris.vtt.fi/ws/files/52866856/Sanchez_CajaA_JMST18.pdf
https://cris.vtt.fi/ws/files/52866856/Sanchez_CajaA_JMST18.pdf
Publikováno v:
Sanchez Caja, A, Martio, J, Saisto, I & Siikonen, T 2015, ' On the enhancement of coupling potential flow models to RANS solvers for the prediction of propeller effective wakes ', Journal of Marine Science and Technology, vol. 20, no. 1, pp. 104-117 . https://doi.org/10.1007/s00773-014-0255-4
The calculation of the effective wake within the CFD context is usually made by combining a potential-flow method for modeling the propeller forces with a RANS equation solver for simulating the viscous flow around the hull and possible appendages. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef53254819692d20bba898ee06bc5486
https://doi.org/10.1007/s00773-014-0255-4
https://doi.org/10.1007/s00773-014-0255-4