Andrés Cura-Hochbaum

GEOMAR Helmholtz Centre for Ocean Research Kiel

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Antonio Lengwinat

Technische Universität Berlin

Florian Sprenger

SINTEF Ocean

Guillaume Delefortrie

Ghent University Hospital

Adolfo Marón

Canal de Experiencias Hidrodinámicas de El Pardo (Spain)

Sebastian Uharek

KIST Europe

Apostolos Papanikolaou

National Technical University of Athens

Thibaut Van Zwijnsvoorde

Flanders Hydraulics

Vahid Hassani

OsloMet – Oslo Metropolitan University

Pablo M. Carrica

University of Iowa

Jan Löhrmann

Technische Universität Berlin

Cooperative Institutions

Technische Universität Berlin

SINTEF Ocean

SINTEF

Ghent University Hospital

Ghent University

Flanders Hydraulics

Universidad Complutense de Madrid

Forschungszentrum Jülich

University of Bern

Graz University of Technology

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Establishment of a Validation and Benchmark Database for the Assessment of Ship Operation in Adverse Conditions

Florian Sprenger Vahid Hassani Adolfo Marón Guillaume Delefortrie Thibaut Van Zwijnsvoorde

The Energy Efficiency Design Index (EEDI), introduced by the IMO [1] is applicable for various types of new-built ships since January 2013. Despite the release of an interim guideline [2], concerns regarding the sufficiency of propulsion power and steering devices to maintain manoeuvrability of ships in adverse conditions were raised. This was the motivation for the EU research project SHOPERA (Energy Efficient Safe SHip OPERAtion, 2013–2016 [3–6]). The aim of the project is the development of suitable methods, tools and guidelines to effectively address these concerns and to enable safe and green shipping. Within the framework of SHOPERA, a comprehensive test program consisting of more than 1,300 different model tests for three ship hulls of different geometry and hydrodynamic characteristics has been conducted by four of the leading European maritime experimental research institutes: MARINTEK, CEHIPAR, Flanders Hydraulics Research and Technische Universität Berlin. The hull types encompass two public domain designs, namely the KVLCC2 tanker (KRISO VLCC, developed by KRISO) and the DTC container ship (Duisburg Test Case, developed by Universität Duisburg-Essen) as well as a RoPax ferry design, which is a proprietary hull design of a member of the SHOPERA consortium. The tests have been distributed among the four research institutes to benefit from the unique possibilities of each facility and to gain added value by establishing data sets for the same hull model and test type at different under keel clearances (ukc). This publication presents the scope of the SHOPERA model test program for the two public domain hull models — the KVLCC2 and the DTC. The main particulars and loading conditions for the two vessels as well as the experimental setup is provided to support the interpretation of the examples of experimental data that are discussed. The focus lies on added resistance at moderate speed and drift force tests in high and steep regular head, following and oblique waves. These climates have been selected to check the applicability of numerical models in adverse wave conditions and to cover possible non-linear effects. The obtained test results with the KVLCC2 model in deep water at CEHIPAR are discussed and compared against the results obtained in shallow water at Flanders Hydraulics Research. The DTC model has been tested at MARINTEK in deep water and at Technische Universität Berlin and Flanders Hydraulics Research in intermediate/shallow water in different set-ups. Added resistance and drift force measurements from these facilities are discussed and compared. Examples of experimental data is also presented for manoeuvring in waves. At MARINTEK, turning circle and zig-zag tests have been performed with the DTC in regular waves. Parameters of variation are the initial heading, the wave period and height.

Interim

Naval architecture

Benchmark (surveying)

Scope (computer science)

Keel

Port (circuit theory)

10.1115/omae2016-54865

Cite

Citations (14)

Experimental Studies on Seakeeping and Manoeuvrability of Ships in Adverse Weather Conditions

Andrés Cura-Hochbaum Guillaume Delefortrie Antonio Lengwinat Adolfo Marón Apostolos Papanikolaou

Seakeeping

Adverse weather

Cite

Citations (2)

Experimental Studies on Seakeeping and Maneuverability of Ships in Adverse Weather Conditions

Journal of Ship Research (2017)

Florian Sprenger Adolfo Marón Guillaume Delefortrie Thibaut Van Zwijnsvoorde Andrés Cura-Hochbaum

The introduction of the energy efficiency design index (EEDI), which is applicable for various types of new-built ships after January 1,2013, raised concerns regarding the sufficiency of propulsion power and steering devices to maintain maneuverability in adverse conditions. This was the motivation for the initiation of the EU research project SHOPERA (Energy Efficient Safe SHip OPERAtion, 2013–2016, http://www.shopera.org). The aim of this article is the development of suitable methods, tools, and guidelines to effectively address the above concerns and to enable safe and green shipping. Within the framework of SHOPERA, a comprehensive experimental program of more than 1300 different model tests for three ship hulls of different geometry and hydrodynamic characteristics has been conducted by four leading European maritime experimental research institutes: MARINTEK, Norway; CEHIPAR, Spain; Technische Universität Berlin, Germany; and Flanders Hydraulics Research, Belgium. The tested hull types refer to two public domain designs, namely the KVLCC2 tanker and the Duisburg Test Case (DTC) container ship, as well as to a small RoPax ferry design, which is a proprietary hull design of a member of the SHOPERA consortium. The conducted tests were distributed among the four research institutes to benefit from the unique possibilities of each facility and to gain added value by establishing data sets for the same hull model and test type at different under keel clearances. This article presents the scope of the SHOPERA model test program for the two public domain hull models—the KVLCC2 and the DTC. The main particulars and loading conditions for the two vessels as well as the experimental setup is provided to support the interpretation of the experimental data that is presented. The focus lies on the added resistance and drift forces at zero and moderate forward speed, propulsion, and rudder force tests in waves and the assessment of maneuverability of ships in waves, as compared to calm water conditions.

Seakeeping

Keel

Scope (computer science)

Naval architecture

Port (circuit theory)

10.5957/josr.170002

Cite

Citations (79)

Numerical and Experimental Damping of Piston and Sloshing Motions in Moonpools

Jan Löhrmann Pablo M. Carrica Andrés Cura-Hochbaum

Damping of waves in moonpools has been investigated. Several different geometries of the moonpool have been considered, which are being mainly characterised by a piston motion of the free surface in the moonpools, while some sloshing effects are visible. A numerical damping approach has been implemented into a viscous solver to simulate the effect of perforated bulkheads without the necessity to create a complex grid. The simulations have been compared with respective model tests. Two different porosities of the bulkhead have been experimentally investigated. The simulations have been conducted for a variety of Froude numbers, moonpool layouts and in calm water as well as waves. A dependency of the surface elevation natural frequency on the ship speed has been found. Furthermore, the numerically determined surface elevation inside the moonpool has been compared with respective experimental data. Based on the surface elevation, the resulting damping for the different layouts is determined and discussed.

Slosh dynamics

Froude number

Bulkhead (partition)

Piston (optics)

Free surface

Elevation (ballistics)

Solver

10.1115/omae2017-61637

Cite

Citations (0)

On the numerical prediction of the ship’s manoeuvring behaviour

Ciencia y tecnología de buques (2011)

Andrés Cura-Hochbaum

A numerical procedure to predict the manoeuvrability of a ship based on Reynolds Averaged Navier Stokes simulations is described together with some recommended practices to obtain feasible results. The paper is dedicated to surface ships in unrestricted waters where usually only four degrees of freedom (DoF) are relevant. An example for a tanker shows the capability of the proposed method.

10.25043/19098642.49

Cite

Citations (8)

A FINITE-VOLUME METHOD FOR TURBULENT SHIP FLOWS

Andrés Cura-Hochbaum

Source

Cite

Citations (5)

The influence of inertial effects on the mean forces and moments on a ship sailing in oblique waves Part B: Numerical prediction using a RANS code

Ocean Engineering (2018)

Sebastian Uharek Andrés Cura-Hochbaum

Code (set theory)

Mooring

10.1016/j.oceaneng.2018.07.002

Cite

Citations (15)

On the heading stability of a ship in waves

Ship Technology Research (2019)

Andrés Cura-Hochbaum Sebastian Uharek

A procedure is presented for analysing the sway-yaw-heading stability of a ship in regular waves. A linear stability analysis of the motion equations of the ship, using a mathematical model for approximating the hydrodynamic forces acting on the ship including mean forces and moments due to waves, shows if the equilibrium state for a given wave, i.e. the corresponding combination of rudder and drift angle, represents a stable condition. RANS computations for the container ship DTC in calm water and in regular waves of diverse lengths coming from several directions have been used to determine all coefficients of the mathematical model in the showed sample application. Selected situations proven to be stable in theory have successfully been directly simulated afterwards with the RANS code, confirming the validity of the proposed procedure. Some preliminary experiments at the Hamburg Ship Model Basin HSVA support our approach.

Rudder

Ship motions

Response amplitude operator

10.1080/09377255.2019.1598607

Cite

Citations (0)

Modelling Mean Forces and Moments Due to Waves Based on RANS Simulations

The Twenty-fifth International Ocean and Polar Engineering Conference (2015)

Sebastian Uharek Andrés Cura-Hochbaum

Source

Cite

Citations (4)