news – conmecs

Bow Thruster Grid Design – Reducing Vessel Resistance through Grid Orientation

Protective grids at bow-thruster openings interact with the external hull flow and can therefore influence vessel resistance. Aligning the grid bars with the incoming flow appears to be the hydrodynamically favourable solution, as it minimises the direct resistance of the grid itself. The CFD analysis showed that the overall behaviour is governed by more than the grid resistance alone. The transverse grid orientation changed the flow through the bow-thruster tunnel and the surrounding pressure distribution, ultimately resulting in the lowest overall vessel resistance.

evolving towards a fully digital workflow

Since the pandemic, digital collaboration has fundamentally changed the way engineering and research projects are managed.

FloatModular – JRP by thyssenkrupp Carbon2Chem, INAM and ESOS Wind GmbH launched

On August 1st 2024, the BMWK-funded research project FloatStructure officially started. Andreas supports ESOS Wind GmbH in the conceptual implementation of the project. It forms part of the collaborative research initiative FloatModular, which aims to develop new floating offshore wind turbine (FOWT) concepts based on a modular and scalable support structure adaptable to different water depths and turbine sizes.

investment in independent High-Performance CFD capability

To strengthen its long-term numerical hydrodynamics capability, conmecs has invested in a permanent Siemens STAR-CCM+® PowerPlus license.

BMWK-funded R&D project CableProtect started

Andreas supports ESOS Wind GmbH by taking over the CFD investigations in the BMWK-funded research project CableProtect, which started in September 2023.

CFD support in the BMWK-funded research project DigitShip (2022-2024)

Pressure Distribution on Aft Hull, Propeller & Rudder

In the years 2022-2024, Andreas supported the Institute for Sustainable and Autonomous Maritime Systems (INAM) at the University of Duisburg-Essen (UDE) in conducting CFD investigations for the BMWK-funded research project DigitShip.

conmecs supports Siemens Energy in R&D project

Siemens Energy Global GmbH & Co. KG is a leading global company that offers services for energy generation and transmission with a strong focus on renewable energies and solutions for the decarbonization of existing customer processes. Siemens Energy’s maritime division offers effective podded drives (PODs) for the shipping industry. Recently, Siemens Energy asked conmecs to support the CFD investigations in a R&D project.

RANS simulations of air ventilation for AERIUS Marine GmbH

AERIUS Marine GmbH is a market leader in design of maritime HVAC solutions and a global player in the fields of piping, refrigeration and fire protection. For a cruise liner project, AERIUS has asked conmecs to evaluate the ventilation system configuration of different passenger cabin designs.

50″ motor yacht – performance in regular waves

Recently, conmecs investigated the performance of a 50″ pleasure yacht in regular waves. Next to the maximum accessible speed in waves @ a fixed thrust of 30kN, the passenger comfort due to ship motions and the acting loads resulting from slamming pressures were on focus of the project.

smoke gas propagation

exhaust gas propagation of cruiser vessel during warm-up of engine

The exhaust emissions from ships are not only discussed in terms of GHG (greenhouse gas) reductions. The operators of offshore supply vessels (OSV) are concerned about their technical employees who work primarily on deck and are exposed to the exhaust. In addition to these health matters, yacht and cruise ship operators want to avoid that passengers be disrupted by the smell of exhaust gases.

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