欢迎各位12月5日至8日莅临中国海事展SSSRI-MARIN展位

Visit us in the ‘Maritime by Holland’ Pavilion of HME at the Marintec China 2017 Conference & Exhibition. MARIN will again be exhibiting together with SSSRI China to discuss and show the latest developments in hydrodynamics. Join us in the Holland Pavillion. Visit stand number N1F51-14. Marintec China 2017 MARIN/SSSRI Joint Venture

船用空泡螺旋桨水下辐射噪声循环试验

Due to concerns about its effect on marine life, shipping noise is receiving increasing attention within the maritime industry. The primary noise source is known to be the cavitating propeller. In order to check compliance with class rules and upcoming environmental regulations, underwater radiated noise can be predicted during the design of a vessel using

新加坡首届“海事安全前景”研讨会

MARIN and Singapore Polytechnics organised their first joint seminar on the ‘Future of Maritime Safety’ on October 6th. The presentations in the morning session had a more people-centric view; the presentations in the afternoon were more technology focused. Key areas identified during the workshop which are relevant for future maritime safety were Training, Human error

船模尾迹空化核探索性研究

Measuring the size and concentration of micro-scale bubbles has long been recognized as important, since these nuclei directly influence cavitation inception. In this study, a nuclei measurement technique based on Interferometric Particle Imaging (IPI) is developed. The technique consists of a continuous wave laser, a high-speed camera and a data-processing algorithm. It was first applied

船舶动力及推进方案会议

RINA as Europort Rotterdam Conference Partner is organising a conference on November 8 during the Europort Exhbition: Power & Propulsion Alternatives for Ships. The current use of alternative fuels and renewable energy sources within the shipping industry is still relatively low. Growing environmental legislation and concerns are driving the need to develop and apply innovative

非定常流模拟中的迭代误差:真的可以忽略吗?

The numerical solution of a statistically steady flow problem is typically obtained in an iterative process. For a given mathematical model, including boundary conditions, the accuracy of the solution is governed by spatial resolution of the grid, spatial discretisation schemes and the convergence tolerance, which says when the solution is considered to have reached a

欢迎各位10月24日至28日莅临休斯顿SNAME荷兰展台

There is again a chance to meet MARIN at the SNAME Maritime Convention & Exhibition, this year in Houston, October 24-28. Join MARIN at stand 301 to discuss the latest developments in maritime research. Contact Frans Quadvlieg to set a meeting or for more information.

应用γ-Reθ转捩模型的模型桨性能预报

The goal of the present work is to improve the prediction of propeller performance at model-scale using a local correlation transition model. Results are presented for two marine propellers for which paint-tests have been conducted and experimental open-water data is available. The numerical results using the k-omega SST turbulence model and the gamma-Re_theta transition model

船舶螺旋桨空泡CFD预报及验证

This paper analyses the effect of grid refinement on computational fluid dynamics simulations of cavitating propeller flow. Refinement is made both globally, using geometrically similar grids, and locally, by applying adaptive grid refinement. The test case is the E779A propeller operating in uniform inflow conditions in a cavitation tunnel. This allows more computationally efficient steady simulations