Subject

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Experimental hydrodynamics

General details of the subject

Mode
Face-to-face degree course
Language
English

Description and contextualization of the subject

Describe the experimental approaches used in Marine Renewable Energy studies. Involve the students into experimental campaigns in Ecole Centrale Nantes large scale facilities also used e.g. in European MRE research networks (MARINET) and international MRE research partnership (Univ. Osaka).

Direct applications of the concepts introduced in Water waves and sea states modelling course (environmental modelling), Wave-structure interactions course (structure response, diffraction-radiation, sea-keeping) and Moorings course (low-frequency response, mooring stiffness).

The pbjective is to provide students with state of the art knowledge on experimental fluid dynamics in the field of Offshore renewable energy. Despite the development of numerical modelling, the experimental approach remains a major source of knowledge development in ship hydrodynamics and marine renewable energy. The contribution to the selection of adequate hypothesis and to the validation of analytical or numerical models is of primary importance. In numerous situations, the experimental approach remains the most reliable, economical and fast way to validate new designs. Specific instrumentations and facilities are presented in this course and used in lab work.

Teaching staff

NameInstitutionCategoryDoctorTeaching profileAreaE-mail
BLANCO ILZARBE, JESUS MARIAUniversity of the Basque CountryProfesorado Titular De UniversidadDoctorNot bilingualFluid Mechanicsjesusmaria.blanco@ehu.eus
EGUIA LOPEZ, PABLOUniversity of the Basque CountryProfesorado AgregadoDoctorNot bilingualElectrical Engineeringpablo.eguia@ehu.eus
MARTINEZ DE ALEGRIA MANCISIDOR, IÑIGOUniversity of the Basque CountryProfesorado AgregadoDoctorBilingualElectronic Technologyinigo.martinezdealegria@ehu.eus

Competencies

NameWeight
Understand the physics of fluid-structure interaction, link model scale experiments and full-scale prototype (similitudes), extrapolate model scale results at full scale20.0 %
Students are able to conduct experimental campaigns and post-process measurements and discuss physical results20.0 %
Understand connections with numerical modelling and theoretical approach20.0 %
Students are able to clearly transmit their experimental observations and their analyse of post-processing results in the field of offshore renewable energy20.0 %
Students are able to update their knowledge in experimental research activities related to the field of offshore renewable energy20.0 %

Study types

TypeFace-to-face hoursNon face-to-face hoursTotal hours
Lecture-based182240
Applied laboratory-based groups203858
Applied fieldwork groups202

Training activities

NameHoursPercentage of classroom teaching
Expositive classes18.0100 %
Groupwork38.00 %
Laboratory/Field22.0100 %
Systematised study22.00 %

Assessment systems

NameMinimum weightingMaximum weighting
Writing up the teamwork50.0 % 100.0 %
Written examination50.0 % 100.0 %

Temary

Lesson 1 Introduction to experimental hydrodynamics

The students find the main topics in MRE experiments.

Lesson 2 Experimental ocean engineering

Experimental tests in offshore basins.

Lesson 3 Resistance

Ship resistance and experiments in towing tanks. Reynolds and Froude similitude; extrapolation at full scale.

Lesson 4 Ship manoeuvrability

Mathematical formulation, experimental determination of hydrodynamic coefficients. Modelling of towed structures.

Lesson 5 Measurements and signal processing

Sensors and transducers, sampling theory. Signal processing, Fourier analysis.

Bibliography

Basic bibliography

¿ S.A. Hughes, Physical Models and Laboratory Techniques in Coastal Engineering

¿ N. Newman, Marine Hydrodynamics

¿ O.M. Faltinsen, Sea loads on ships and offshore structures

¿ V. Bertram, Practical Hydrodynamics

¿ S. Chakrabarti, Offshore structure modeling

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