Green maritime technology research group
TalTech priority area
Research classification (Frascati)
Head of the research group
Research group member
Doctoral students
Keyword
fuel efficiency
smartization
marine hydrodynamics
safety
Overview
The main motivation behind the activities of the research group is the implementation of the principles and strategies declared by regulatory and policy-making bodies (such as IMO, HELCOM, the EU Strategy for the Baltic Sea Region and international agreements on sustainable development) regarding various marine vehicles,especially focusing on high speed crafts. For this purpose, the main research studies of the research group are divided into four fields: Safety: The main focus is on how the ships’/boats’ motions could be reduced. We are also considering the performance of crews and onboard systems under the effects of ships’/boats’motions. Currently we are working on safety improvement of planning hulls by a combination of an active control trim tab and shock mitigation seats.Emission Reduction: This field focuses on fuel-efficient hull forms, and optimization and zero-emission propulsion systems. The ongoing project, supported by the Interreg Baltic Sea Region programme, focuses on green cruising of small craft where we are working on new hull forms, electric propulsion systems and digital marine control systems to reduce the fuel consumption of high-speed small craft. Smartization: The focus is on a variety of research problems including smart ship design,unmanned high-speed craft and Digitalized Computational Fluid Dynamics (DCFD) by implementing artificial intelligence, machine learning and genetic algorithm. Hydrodynamics of Marine Vehicles: Marine hydrodynamics is a part of all the above-mentioned research activities. We are working on resistance and propulsion, seakeeping and manoeuvring characteristics of different marine vehicles by considering safety, fuel efficiency and smartization goals. The latest focus is on seakeeping and manoeuvring of stepped hulls.A large variety of mathematical, numerical and experimental methods are being developed in the research group. Additionally, to address the existing knowledge gap, we are planning to start a series of experimental tests in the towing tank on the behavior of boats and ships in irregular waves to study the effects of seakeeping on fuel efficiency.
Related projects
Related department
Teadusgrupiga seotud publikatsioonid
- Dashtimanesh, A., Ghaemi, M. H., Wang, Y. et al. Digitalization of high speed craft design and operation challenges and opportunities // Procedia Computer Science (2022) vol. 200, p. 566-576.
https://doi.org/10.1016/j.procs.2022.01.254 - Vitiello, L., Mancini, S., Bilandi, R. N., Dashtimanesh, A., De Luca, F., Nappo, V. A comprehensive stepped planing hull systematic series : part 1 - resistance test // Ocean engineering (2022) vol. 266, art. 112242.
https://doi.org/10.1016/j.oceaneng.2022.112242 - Niazmand Bilandi, R., Tavakoli, S., Dashtimanesh, A. Seakeeping of double-stepped planing hulls // Ocean engineering (2021) vol. 236, art. 109475, 23 p. : ill.
https://doi.org/10.1016/j.oceaneng.2021.109475 - Tavakoli, S., Bilandi, R.N., Dashtimanesh, A. et al. Dynamic of a planing hull in regular waves: Comparison of experimental, numerical and mathematical methods // Ocean engineering (2020) vol. 217, art. 107959, 24 p. : ill.
https://doi.org/10.1016/j.oceaneng.2020.107959 - Bilandi, R.N., Dashtimanesh, A., Tavakoli, S. Hydrodynamic study of heeled double-stepped planing hulls using CFD and 2D+T method // Ocean engineering (2020) vol. 196, art. 106813 ; 21 p. : ill.
https://doi.org/10.1016/j.oceaneng.2019.106813 - Huang, L., Tavakoli, S., Li, M., Dolatshah, A., Pena, B., Ding, B., Dashtimanesh, A. CFD analyses on the water entry process of a freefall lifeboat // Ocean engineering (2021) vol. 232, art. 109115, 11 p. : ill.
https://doi.org/10.1016/j.oceaneng.2021.109115 - Roshan, F., Dashtimanesh, A., Bilandi, R.N. Hydrodynamic characteristics of tunneled planing hulls in calm water // Brodogradnja : Teorija i praksa brodogradnje i pomorske tehnike (2020) vol. 71, 1, p. 19-38 : ill.
https://hrcak.srce.hr/232081 https://doi.org/10.21278/brod71102 - Dashtimanesh, A., Tavakoli, S., Kohansal, A. et al. Numerical study on a heeled one-stepped boat moving forward in planing regime // Applied ocean research (2020) vol. 96, art. 102057, 18 p.
https://doi.org/10.1016/j.apor.2020.102057 - Hosseini, A., Tavakoli, S., Dashtimanesh, A., Sahoo, P. K., Kõrgesaar, M. Performance prediction of a Hard-Chine Planing Hull by employing different CFD models // Journal of marine science and engineering (2021) vol. 9, 5, art. 481, 26 p. : ill.
https://doi.org/10.3390/jmse9050481 - Khojasteh, D., Tavakoli, S., Dashtimanesh, A. at al. Numerical analysis of shipping water impacting a step structure // Ocean Engineering (2020) vol. 209, art. 107517, 10 p. : ill.
https://doi.org/10.1016/j.oceaneng.2020.107517 - Bilandi, R.N., Vitiello, L., Mancini, S., Dashtimanesh, A. et al. Calm-water performance of a boat with two swept steps at high-speeds: Laboratory measurements and mathematical modeling // Procedia manufacturing (2020) vol. 42, p. 467-474 : ill.
https://doi.org/10.1016/j.promfg.2020.02.046 - Dashtimanesh, A., Roshan, F., Tavakoli, S. et al. Effects of step configuration on hydrodynamic performance of one- and doubled-stepped planing flat plates: A numerical simulation // Proceedings of the institution of mechanical engineers, part M: journal of engineering for the maritime environment (2020) vol. 234, 1, p. 181-195.
https://doi.org/10.1177/1475090219851917 - Esfandiari, A., Tavakoli, S., Dashtimanesh, A. Comparison between the dynamic behavior of the non-stepped and double-stepped planing hulls in rough water: A numerical study // Journal of ship production and design (2020) vol. 36, 1, Paper Nr: SNAME-JSPD-2020-36-1-52 ; p. 52–66.
https://doi.org/10.5957/jspd.2020.36.1.52 - Roshan, F., Dashtimanesh, A., Tavakoli, S., Niazmand, R., Abyn, H. Hull-propeller interaction for planing boats: a numerical study // Ships and offshore structures (2020) vol. 16, 9, 14 p. : ill.
https://doi.org/10.1080/17445302.2020.1790295 - Spinelli, F., Mancini, S., Vitiello, L., Bilandi, R. N., De Carlini, M. Shipping decarbonization : an overview of the different stern hydrodynamic energy saving devices // Journal of marine science and engineering (2022) vol. 10, 5, art. 574.
https://doi.org/10.3390/jmse10050574 - Tavakoli, S., Dashtimanesh, A., Mancini, S., Mehr, J.A., Milanesi, S. Effects of vertical motions on roll of planing hulls // Journal of offshore mechanics and arctic engineering (2021) vol. 143, 4, p. 041401−041411.
https://doi.org/10.1115/1.4050210 - Tavakoli, S., Shaghaghi, P., Mancini, S., De Luca, F., Dashtimanesh, A. Wake waves of a planing boat : an experimental model // Physics of Fluids (2022) Vol. 34, Issue 3, Art. nr. 037104.
https://doi.org/10.1063/5.0084074 - Tavakoli, S., Najafi, S., Amini, E., Dashtimensh, A. Ship acceleration motion under the action of a propulsion system: a combined empirical method for simulation and optimisation // Journal of marine engineering & technology (2021) vol. 20, 3, p. 200-215 : ill.
https://doi.org/10.1080/20464177.2020.1827490 - Lakatoš, M., Tabri, K., Dashtimanesh, A. et al. Numerical modelling of a planing craft with a V-Shaped spray interceptor arrangement in calm water // HSMV 2020 : Proceedings of the 12th Symposium on High Speed Marine Vehicles. Amsterdam : IOS Press, 2020. p. 33-42. (Progress in marine science and technology ; 5).
https://doi.org/10.3233/PMST200024 - Roshan, F., Tavakoli, S., Mancini, S., Dashtimanesh, A. Dynamic of tunneled planing hulls in waves // Journal of marine science and engineering (2022) vol. 10, 8, art. 1038 : ill.
https://doi.org/10.3390/jmse10081038 - Ghassemzadeh, A., Dashtimanesh, A., Habibiasl, M., Sahoo, P. Development of a mathematical model for performance prediction of planing catamaran in calm water // International journal of maritime engineering (2019) vol. 161, art.: IJME 538, p. 183−194.
https://www.rina.org.uk/IJME_538.html http://dx.doi.org/10.3940/rina.ijme.2019.a2.538 - Tavakoli, S., Dashtimanesh, A. A six-DOF theoretical model for steady turning maneuver of a planing hull // Ocean engineering (2019) vol. 189, art. 106328, 17 p. : ill.
https://doi.org/10.1016/j.oceaneng.2019.106328 - Niazmand Bilandi, R., Dashtimanesh, A., Mancini, S., Vitiello, L. Comparative study of experimental and CFD results for stepped planing hulls // Ocean engineering (2023) vol. 280, art. 114887.
https://doi.org/10.1016/j.oceaneng.2023.114887 - Niazmand Bilandi, R., Niazmand Bilandi, R., Tavakoli, S. Stepped hulls early stage design by implementing 2D+T method // HSMV 2023 : Proceedings of the 13th Symposium on High Speed Marine Vehicles. : IOS Press, 2023. p. 23-32. (Progress in marine science and technology ; 7).
https://doi.org/10.3233/PMST230005 - Niazmand Bilandi, R., Mancini, S., Dashtimanesh, A., Lakatoš, M. How to improve full-scale self-propulsion simulations? A case study on a semi-displacement hull // HSMV 2023 : Proceedings of the 13th Symposium on High Speed Marine Vehicles. : IOS Press, 2023. p. 265-274. (Progress in marine science and technology ; 7).
https://doi.org/10.3233/PMST230034