# Numerical Ship and Offshore Hydrodynamics

By Prof. Ranadev Datta   |   IIT Kharagpur
Learners enrolled: 198
This course will provide the thorough understanding of the several numerical methods in the domain of ocean engineering, broadly in the domain of wave structure interaction. The proposed course mostly focuses on different numerical methods based on potential theory, for example, zero and forward speed 3D frequency and time domain panel method, strip theory, time domain method based on Impulse response function etc. Also, at latter stage of the course, Hydroelasticity of ship will also be discussed. This is a comprehensive and contemporary course for industry personnel, undergraduate, masters and PhD level students in the domain of ocean engineering/ mathematics/civil engineering.

INTENDED AUDIENCE: BE/ME/Ph,d Student in the field of Ocean Engineering and Naval Architecture, Mechanical Engineering, Civil Engineering, Industry personnel from Ship and Offshore Industry, Classification societies etc.

PREREQUISITES: Basic Fluid Dynamics, Numerical Methods (Optional)

INDUSTR SUPPORT   IRS ( Indian Register for Shipping ), Indian Navy, GRSE, Offshore Companies
Summary
 Course Status : Completed Course Type : Elective Duration : 12 weeks Category : Ocean Engineering Credit Points : 3 Level : Undergraduate/Postgraduate Start Date : 25 Jul 2022 End Date : 14 Oct 2022 Enrollment Ends : 08 Aug 2022 Exam Date : 30 Oct 2022 IST

Note: This exam date is subjected to change based on seat availability. You can check final exam date on your hall ticket.

### Course layout

Week 1: Basic Seakeeping with Tutorial
Week 2: Basic Wave Hydrodynamics with Tutorial
Week 3: Introduction to Boundary Element Method ( Part 1)
Week 4: Boundary Element Method ( Part 2) with Coding Tutorial that will be applied to solve finding added mass of a body in infinite fluid domain.
Week 5: 3D Frequency Domain Panel Method (Part 1)
Week 6: 3D Frequency Domain Panel Method (Part 2)
Week 7: Time Domain Panel Method using IFR with Coding Tutorial. The tutorial will help you to write a code to predict motion of a ship using IRF. Introduce non linear load such as slamming load in IRF solution.
Week 8: Strip Theory With Coding Tutorial on how to calculate 2-D added mass of ship shape body
Week 9: Time Domain Panel method (Part 1)
Week 10: Time Domain Panel Method (part 2) With Coding Tutorial on numerically calculate the Green’s function.
Week 11: Numerical Method for Hydroelasticity
Week 12: Modelling of Slamming and Green water load

### Books and references

1. Marine Hydrodynamics by J. N. Newman
2. Sea Loads on Ship and Offshore Structure by O. M.Faltinsen.
3. Practical Ship Hydrodynamics by Volker Bertram
4. WAMIT manual
5. PNA, part 3.

### Instructor bio

IIT Kharagpur
Dr. Ranadev Datta is now an Associate Professor in the department of Ocean Engineering of Naval Architecture, Indian Institute of technology Kharagpur, India. He did his PhD in the same department in Numerical Ship and Offshore Hydrodynamics. He worked in IST Lisbon, during 2009 to 2012. The primary research interest of Dr. Ranadev Datta is related to ship and offshore structure seakeeping, Hydroelasticity. He had developed a higher order 3D time domain panel method to solve ship motion problems during his graduation. Presently, his research area includes hydroelasticity, nonlinear fluid structure interaction problem, computational geometry etc. He is now involved in a project supported by the Naval Research Board where they are trying to solve hydroelasticity problem by coupling the boundary element method (BEM) and finite element method (FEM) in time domain. Also working on the nonlinear wave- structure interaction problem, the focus is to find an efficient way to couple the classical potential flow method with popular CFD solvers, so that the local phenomenon such as deck wetness/ slamming can be modelled using CFD. Dr.  Datta has worked on several industry-related projects. He has helped IRS (International register for shipping) to develop their classification rule book. He also developed stability software for jack up Rigs with Green Palm Marine Consultancy. Apart from that, he has been involved in many small scale routine consultancy projects as well. Apart from his work related to numerical ship and offshore structure hydrodynamics, he is also keen in developing an automated meshing engine for ship like structures using the key concept of computational geometry.

### Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
Date and Time of Exams: 30 October 2022 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
Registration url: Announcements will be made when the registration form is open for registrations.
The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.

CRITERIA TO GET A CERTIFICATE

Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Kharagpur. It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team