MODULE DESCRIPTOR MECHGN03 – Ship Hydrodynamics Code: Alt. Codes(s) Title: Level: UCL Credits/ECTS: Start: End: Taught by: Brief Description Pre-requisites MECHGN03 MECHM016, MECH4016 (until 2012) Ship Hydrodynamics MSc 30 credits September March G X Wu (Module Coordinator) Other Staff: E Muc-Pavic, J Aston An advanced course in ship hydrodynamics covering the analysis methods available for estimating ship resistance, hull/propeller interaction effects, and the design of propellers together with methods (both theoretical and empirical) for assessing the directional stability and manoeuvrability of ships Competance:As exemplified by a mechanical, civil, aeronautical or other “mechanical type” engineering degree with strong structures element continued throughout. Where a candidate has demonstrated the appropriate intellectual capability but is deemed not to have an appropriate background in “mechanical” engineering (i.e. those with typically an electrical st engineering degree obtained at a high level (2:1 or 1 class honours)) the pre-requisite units can form part of a pre-qualifying year. Co-requisites Availability None Compulsory course for:1. MSc Naval Architecture Optional course for:As a stand alone course for CPD :May be taken in the following forms:1. Entire Ship Hydrodynamics course, including 3 coursework assessments and 3 hour exam 2. Manoeuvring Introductory course, including 1 coursework assessment and no exam 3. Basic Hydrodynamic Prediction Introductory course, including 1 coursework assessment and no exam 4. Computational Fluid Dynamics Introductory course, including 1 coursework assessment and no exam Aims & Objectives General Learning Outcomes (See Ref 1) Candidates for CPD must have the prerequisite competence. The aim of the course is to give the student an advanced theoretical grounding in one of the fundamental analytical discipline fields of Naval Architecture and Ocean Engineering. Other fields are ship design and ship dynamics. Ability to develop, monitor & update a plan, to reflect a changing operating environment N/A Ability to monitor and adjust a personal program of work on an ongoing basis, and to learn independently 1. Normal background reading/study common to all degree programs 2. The NA MSc the assessment questions form a significant personal Page | 1 work load requiring well developed self study and independent learning skills An understanding of the different roles within a team, and the ability to exercise leadership N/A The ability to learn new theories, concepts and methods in unfamiliar situations Normal learning situation common to all degree programs Specific Learning Outcomes (See Ref 1) Underpinning science & Mathematics 1. Understanding of scientific principles a) Own Specialisation See syllabus. b) Related Disciplines N/A 2. Awareness of developing technologies (own specialisation) Introduction to developing technologies in ship hydrodynamic analysis 3. Knowledge & Understanding of mathematical & computer models, appreciation of limitations Includes knowledge and understanding of both current modelling methods used in the analysis of ship hydrodynamics. Includes an awareness of novel methods currently under development. 4. Understanding of a breadth of concepts (including some outside engineering, and an ability to apply these in an engineering project. Course is aimed at developing a deep understanding of a specialist field (ship hydrodynamics) there is however some examination of the interaction between ship design and hydrodynamics. Engineering Analysis 1. Ability to use fundamental knowledge to investigate new and emerging technologies The course explores the applications of current methods to novel configurations e.g. trimarans / pentamarans 2. Ability to apply mathematical & computer based models for solving problems in engineering & awareness of limitations The course applies current methods to the solution of problems in the areas of ship hydrodynamics. Strong emphasis is placed on discussion of the limitations and assumptions inherent in current methods 3. Ability to extract & apply data in the solution of unfamiliar problems The course discusses data monitoring and its application however there are no experimental or experimental data analysis aspects to the course. Design 1. Knowledge & understanding of design process & methodologies, an ability to apply and adapt them in unfamiliar situations. The unit examines the limitations present in current methods and discusses their adoption to novel geometries. 2. Ability to generate design of innovative products, systems, processes to fulfil new needs The course is intended to provide a firm foundation from which students will be able to generate innovative solutions. Page | 2 Economic, Social & Environmental Context 1. Extensive knowledge of management & business practices, their limitation and correct application N/A 2. Ability to evaluate commercial risk through an understanding of the basis of such risks The course places a strong emphasis on the risks associated with extreme motions. Engineering Practice 1. An understanding of current practice and limitations, some appreciation of likely new developments Limited discussion of practical aspects and difficulties found in predicting hydrodynamic performance. 2. Extensive knowledge & understanding of a wide range of engineering materials & components N/A Communication skills 3. Ability to apply engineering techniques taking into account of a range of commercial and industrial constraints. N/A Present technical work in the following ways:Written Three major items of coursework Oral N/A Participate in a technical discussion of:Technical discussion occurs in lectures and tutorials Lead a technical discussion of:N/A Competence statements derived from UK Spec - Ref 1 A Use a combination of general and specialist engineering knowledge and understanding to optimise the application of existing and emerging technology. A1 Maintain and extend a sound theoretical approach in enabling the introduction and exploitation of new and advancing technology and other relevant developments. This could include an ability to: Identify the limits of own personal knowledge and skills Strive to extend own technological capability Broaden and deepen own knowledge base through research and experimentation. Addressed in module by:1. Understanding of scientific principles a) Own Specialisation See syllabus. 2. Awareness of developing technologies (own specialisation) Introduction to developing technologies in ship hydrodynamic analysis including:• Computational fluid dynamics. • Novel Propulsive Devices • Prediction of added mass and damping 3. Knowledge & Understanding of mathematical & computer models, appreciation of limitations Includes knowledge and understanding of both “traditional” and “advanced” modelling methods currently used in the Page | 3 synthesis of ships hulls, appendages and propulsors and analysis of ship hydrodynamics. Includes an awareness of novel methods currently under development. 4. Understanding of a breadth of concepts (including some outside engineering, and an ability to apply these in an engineering project. Course is aimed at developing a deep understanding of a specialist field (ship / submarine hydrodynamic analysis) there is however some examination of the interaction between ship design and ship hydrodynamic performance. 5. Ability to apply mathematical & computer based models for solving problems in engineering & awareness of limitations The course applies current methods both simple and advanced to the solution of problems in the areas of ship hydrodynamics. Strong emphasis is placed on discussion of the limitations and assumptions inherent in current methods A2 Engage in the creative and innovative development of engineering technology and continuous improvement systems. This could include an ability to: Establish users’ needs Assess marketing needs and contribute to marketing strategies Identify constraints and exploit opportunities for the development and transfer of technology within own chosen field Promote new applications when appropriate Secure the necessary intellectual property rights Develop and evaluate continuous improvement systems Engineering Analysis 1. Ability to use fundamental knowledge to investigate new and emerging technologies The course explores the applications of current methods to novel configurations e.g. trimarans / pentamarans and propulsors e.g. waterjet 2. Ability to extract & apply data in the solution of unfamiliar problems The course discusses data monitoring and its application however course work frequently examines the analysis of real data. B Apply appropriate theoretical and practical methods to the analysis and solution of engineering problems. Addressed in module by:B1 Identify potential projects and Innovation opportunities. This could include an ability to: 1. Ability to generate design of innovative Explore the territory within own products, systems, processes to fulfil responsibility for new opportunities new needs Review the potential for enhancing engineering products, processes, The course is intended to provide a firm Page | 4 systems and services Use own knowledge of the employer’s position to assess the viability of opportunities. B2 Conduct appropriate research, and undertake design and development of engineering solutions. This could include an ability to: Identify and agree appropriate research methodologies Assemble the necessary resources Carry out the necessary tests Collect, analyse and evaluate the relevant data Draft, present and agree design recommendations Undertake engineering design. B3 Implement design solutions, and evaluate their effectiveness. This could include an ability to: Ensure that the application of the design results in the appropriate practical outcome Identify the required cost, quality, safety, reliability, appearance, fitness for purpose and environmental impact of the outcome Determine the criteria for evaluating the design solutions Evaluate the outcome against the original specification Actively learn from feedback on results to improve future design solutions and build best practice. foundation from which students will be able to generate innovative solutions. Design 1. Knowledge & understanding of design process & methodologies, an ability to apply and adapt them in unfamiliar situations. Propeller design is a significant part of both the taught and course work aspects of the course, The lecture material discusses the interaction between hydrodynamic design and whole ship design. Engineering Practice 1. An understanding of current practice and limitations, some appreciation of likely new developments Limited discussion of practical production aspects to the extent that they impact on hydrodynamic behaviour, ie shaft angles etc 2. Extensive knowledge & understanding of a wide range of engineering materials & components Limited discussion of propulsor materials. Economic, Social & Environmental Context 1. Ability to evaluate commercial risk through an understanding of the basis of such risks The course places a strong emphasis on the risks associated with incorrect propulsive power and propeller performance estimation. C Provide technical and commercial leadership. Addressed in module by:C1 Plan for effective project implementation. N/A This could include an ability to: Identify the factors affecting the project implementation Lead on preparing and agreeing implementation plans and method statements Ensure that the necessary resources are secured and brief the project team Negotiate the necessary contractual arrangements with other stakeholders (client, subcontractors, suppliers, etc.) Page | 5 C2 Plan, budget, organise, direct and control tasks, people and resources. This could include an ability to: Set up appropriate management systems Agree quality standards, programme and budget Organise and lead work teams, coordinating project activities Ensure that variations from quality standards, programme and budgets are identified, and that corrective action is taken Gather and evaluate feedback, and recommend improvements. C3 Lead teams and develop staff to meet changing technical and managerial needs. This could include an ability to: Agree objectives and work plans with teams and individuals Identify team and individual needs, and plan for their development Lead and support team and individual development Assess team and individual performance, and provide feedback. C4 Bring about continuous improvement through quality management. This could include an ability to: Promote quality throughout the organization and its customer and supplier networks Develop and maintain operations to meet quality standards Direct project evaluation and propose recommendations for improvement. Teaching & Learning Methods Lectures Private Reading Tutorials Practicals Extramural activity Independent Project Work Language Work Required written Work Revision Total Method & Timing of assessment N/A N/A N/A Number / Student Hours 54 54 25 45 (3x15) 45 223 End of course 3 hr written exam 3 assessment questions Outline syllabus Computational Fluid Dynamics Encountering computer predictions - a general introduction. Basic concepts of fluids covering incompressible1 viscous or inviscid flows and free surfaces. Regions of validity. Computational tools for body and fluid modelling. Applications to body modelling, free surfaces, viscous flows and lifting surfaces. Computational methods in control - forces due to cross-flows and shed vortices. Solution methods for the Navier-Stokes equations, turbulence modelling and mesh generation. Page | 6 Basic Prediction Techniques Components of ship resistance and prediction techniques. Series model resistance experiments. Drag reduction. Hull/propeller interaction effects. Lifting line design of propellers. Propeller charts and preliminary propeller design. Waterjets Preliminary estimates of speed and power. Trials analysis. Physical effects and significance of cavitation number. Simple theoretical considerations. Cavitation tunnel testing. Manoeuvring Directional stability of surface vessels. Steady motion of surface vessels and submarines. Transient response. Steering indices. Directional stabilisation by fins and rudder. Model tests and trials. Manoeuvring Simulation & Prediction. References Mechanics of Fluids Edward Arnold W. J. Duncan A.S. Thorn & A.D. Young Sea Loads & Offshore Cambridge University O. Faltinsen structures Press. Hydrodynamics of SNAME Press H.E. Saunders Ship Design Marine Hydrodynamics MIT Press J.N. Newman Practical Ship Butterworth & V Bertram Hydrodynamics Heinemann Principles of Naval SNAME J Randolph Pawling Architecture (Propulsion, Ship Resistance and Flow) Ship resistance and Cambridge Molland, A.F., propulsion: practical University Press. Turnock, S. R. and estimation of ship (2011) Hudson, D.A propulsive power Timetable One day per week from September to March Ref 1 EC UK Standard for Professional Engineering Competence “The accreditation of Higher Education Programmes” Dec 2008 Page | 7