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<strong>DCMT</strong><br />
18<br />
−<br />
Barduca O. and Haglind F., 2009, “Optimization of the waste recovery system for a<br />
marine slow-speed diesel engine, Part II: part-load performance,” DTU report.<br />
Desuden er der publiceret følgende emner, som er udarbejdet i regi af dette <strong>DCMT</strong> projekt:<br />
− Dahlkvist J., 2007, “Examination Project, Ship Design – Combined Cycle vs. Diesel<br />
Engine,” B.Sc. Thesis, Department of Mechanical Engineering, Technical University of<br />
<strong>Den</strong>mark.<br />
− Barduca O., 2008, “Diesel Engine Analysis for Increasing Power and Efficiency,” M.Sc.<br />
thesis, Department of Mechanical Engineering, Technical University of <strong>Den</strong>mark.<br />
− Risborg C., 2009, “Fremdrivningsanlæg for hurtiggående færger,” Special course report,<br />
Department of Mechanical Engineering, Technical University of <strong>Den</strong>mark.<br />
Præsentationer:<br />
−<br />
Haglind F., 2007, “Gas and Steam turbine combined cycles as prime movers for large<br />
ships,” <strong>Den</strong> Blå Konference 2007, Copenhagen, <strong>Den</strong>mark.<br />
− Haglind F., 2008, “Unconventional prime movers for large ships,” 29 th International<br />
Bunker Conference, 23-25 April 2008, Copenhagen, <strong>Den</strong>mark.<br />
− Haglind F., 2009, “Hybride Propulsion Systems for Ships,” DTU Gensynsdag 2009.<br />
Desuden er arbejdet præsenteret på interne DTU møder, samt ved <strong>Den</strong> Blå Konference 2008 på<br />
CBS.<br />
Fredrik Haglind:<br />
” I have had very good experience with <strong>DCMT</strong>. The co-operation between Force Technology<br />
and DTU Mechanical Engineering has been fruitful and successful, and I believe that during the<br />
past three years the <strong>DCMT</strong> project has played a significant role for the progress of advanced<br />
machineries for ships. The <strong>DCMT</strong> project has resulted in spin-off effects. For example,<br />
computer models developed within <strong>DCMT</strong> are currently used for developing a decision support<br />
system for on-board performance monitoring of the new Triple-E Mærsk container vessels. In<br />
addition, these models have been used for a project running within the Green Ship of the<br />
Future project. For these reasons, I believe that it would be beneficial for the Danish <strong>Maritime</strong><br />
industry if there will be a continuation of the <strong>DCMT</strong> activities also after the end of 2010”<br />
6.11 Roll damping<br />
CFD gruppen på FORCE Technology har i dette studie undersøgt muligheden for at bestemme<br />
rulle dæmpning ved hjælp af RANS CFD.<br />
Et skibs rulle dæmpning er vigtig for bevægelses studier for skibe og for simuleringer studier og<br />
simulerings træning.<br />
Rulle dæmpning er styret af viskose tab og tab af energi der går til bølgedannelse. De<br />
almindelige 3D panel metoder der benyttes til skibs bevægelses studier kan alene regne bidraget<br />
der går til bølgedannelse, hvorfor der typisk benyttes empiriske metoder eller model forsøg til<br />
bestemmelse af de viskose tab. De empiriske metoder er ofte upræcise og kan ikke medtage<br />
effekter fra finner, bilge keels og lignende. Model forsøg på den anden side er ofte for dyre for<br />
bestemmelse af rulle dæmpningen alene.<br />
Studiet demonstrerer hvorledes det ved hjælp af de udviklede metoder i kombination med RANS<br />
CDF, er muligt numerisk at bestemme rulle dæmpningen præcist. Metoderne bygger på tvungne<br />
rulninger udført i RANS CFD modellen og efterfølgende analyse og bestemmelse af added mass<br />
FT 187<strong>DCMT</strong><br />
PSS/CRS