Numerical investigations are an essential part for the evaluation of the design of ships and offshore structures at sea. Hereby, methods of different complexity are available to be applicable for specific task-related objectives. Generally, the computational effort increases with increasing complexity which is why hollistic investigations are normally performed with methods of reduced complexity. Complex methods can only be used for specific problems and fundamental research where the results from simplified method can serve as a basis. Independently of the applied methods, the application of tailored wave sequences offers the efficient evaluation of critical situations by a reduced number of simulations. The overall objective of this study is to establish a procedure for numerical investigation of tailored wave sequences within the framework of an existing numerical program. For this purpose, the seakeeping behavior of a LNG carrier is to be analysed. Besides investigations in regular and irregular waves, complex tailored wave groups such as transient wave packets or exact solutions of the NLS equation are to be investigated. Experimental data will be available in order to validate the numerical program. The tasks related to this position will include: · Literature review of the state of the art of numerical seakeeping simulation methods · Familiarization with the program system · Preparation of the numerical simulations (inclusion of LNG carrier hull) · Implementation of tailored wave sequence procedure · Numerical simulations and experimental validation · Documentation of research activities & results · Your independent working methods, enthusiasm and thirst for knowledge complete your profile · Good English language skills The exact scope of a thesis can be defined based on the interests and skill-set of the candidate. Qualifications sought: · Curiosity, excellent skills in independent work and communication · Your independent working methods, enthusiasm and thirst for knowledge complete your profile. · Good English language skills Compensation: Students will be compensated up to TVöD 5 scale for 15 hours/week, following an initial review of the project plan