HULL DESIGN

The extent of hull development services are tailored to client’s needs, time and budget for the project. Services include concept verification, optimization of client’s initial hull form, optimization of the hull form for multiple design criteria, hull fairing, wedge studies, spray reduction, appendage streamlining, power prediction, verification of contractual obligations, tank testing and measurement of delivered power during sea-trials. Potential and Viscous RANS based Computational Fluid Dynamics tools are utilized during the hull development & verification process. Hull development process may optionally be linked to multi-criteria optimization loop, if requested by the client.

ON-BOARD MEASUREMENTS

Various on-board measurement services are being provided within Hidroteknik. These include delivered power measurement, EEDI verification, vibration surveys, shipboard noise surveys and underwater noise surveys. Ship speed trials are also conducted as well as ship motions and maneuvering.Measurements are post-processed according to relevant International Standards and codes as required by the client.

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CFD ANALYSIS

We provide advanced CFD analysis services, primarily by the utilization of potential and viscous RANS Computational Fluid Dynamics tools. Hydrodynamic studies include calm water resistance of ships, appendage resistance & streamlining, wake analysis, propeller open water performance, ship propulsion, flow noise predictions, trim optimization, hull & appendage optimization, vortex generator design, air lubrication of ship hulls, etc..We also provide aerodynamic analysis for ships and industrial applications. Superstructure flow, flow noise, exhaust flow & thermal signature, helicopter deck air wake, exhaust back pressure, sail aerodynamics are examples of applications.

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CONSULTANCY

We provide consultancy services for the marine industry on a broad range. Clients include classification societies, towing tanks, non-governmental organizations and financial institutions.

SHIP PERFORMANCE PREDICTIONS

Maneuvering analysis with in-house software, seakeeping analysis, stability analysis, propulsion predictions are conducted for new build projects and existing fleet.

These predictions may be linked to performance improvement studies of existing fleet by integration to measurements and CFD.

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SOFTWARE DEVELOPMENT

We are currently involved in development of in-house softwares as well commercial ones. In-house softwares include a maneuvering analysis software and seakeeping software.

A helicopter ship-interface simulator is available, which may be suited to any ship or yacht. Shipboard Energy Efficiency Decision Support System (SEEDS) may also be tailored to any commercial ship. Shipboard Noise Prediction Program is extensively used for noise predictions and is commercially available to designers & shipyards.

Helıcopter shıp ınterface sımulator (HESIS)

HESIS enables the evaluation of possibility of helicopter landing operations on board ships for all possible wind on deck angles and speeds. The airwake of the ship superstructure, the motions of the ship, the atmospheric variations of wind velocity are accurately accounted for within the simulations. The helicopter and pilot model is combined with the data obtained from analysis of the ship in consideration in order to obtain the wind envelope and Pilot workload.

Shipboard noıse predıctıon program (Snopp)

SNoPP is a source-path-receiver method based prediction tool, utilized for predicting sound levels in ship compartments prior to the construction of the vessel. The ship is easily modeled from the GUI and material properties are selected from the library in order to obtain the final sound levels.

The program has been extensively validated for ships, mega yachts and naval vessels.

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AI BASED DECISION SUPPORT SYSTEM (aıd)

AID is based on digital twin development by real time data acquisition, post process of data by big data analysis techniques, artificial neural network training with real time data and integration of optimization techniques augmented by deep learning algorithms. It provides continuous decision support to ship operator, suggesting optimised parameter combinations for energy efficient ship operations.

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MILGEM-G (ı CLASS FRIGATE) - HULL DESIGN

Hydrodynamic design of the frigate has been conducted for the Turkish Navy. Services included hull form optimization, resistance, seakeeping, maneuvering, flow noise, powering analysis as well towing tank testing.

VORTEX GENERATOR DESIGN AND TESTING

Measurements were conducted on a tanker with excessive vibration levels. The nominal wake has been predicted with CFD. Non-uniformity in the wake has been reduced with vortex generators designed with CFD. After installation, vibration levels have been remeasured to be reduced substantially.

LHD - SHIPBOARD HELICOPTER OPERATION SIMULATIONS

An engineering simulator has been developed for the evaluation of risks associated with helicopter operations on a LHD type ship.