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Search: db:Swepub > Other academic/artistic > Larsson Lars

  • Result 51-60 of 466
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51.
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52.
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53.
  • Han, Kaijia, 1974, et al. (author)
  • A RANS study on the interaction between a propeller and a rudder in open water
  • 2007
  • In: 10th Numerical Towing Tank Symposium (NuTTS 2007).
  • Conference paper (other academic/artistic)abstract
    • When designing a ship, it is important to estimate accurately the effects of propeller-rudder interaction, as the rudder behind a propeller and a ship has a great effect both on the propulsive and maneuvering performance. In order to both understand the physical phenomenon and validate the RANS solver SHIPFLOW, the interaction between a propeller and a rudder in open water is qualitatively and quantitatively predicted and validated against experimental data. Furthermore, the propeller slipstream deformation is illustrated and the regain of rotational losses by the rudder is estimated.
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54.
  • Han, Kaijia, 1974, et al. (author)
  • Numerical optimization of a propeller behind a ship hull at full scale
  • 2006
  • In: 26th Symposium on Naval Hydrodynamics. ; VOL II, s. P87-98
  • Conference paper (other academic/artistic)abstract
    • A propeller behind a ship hull (the Hamburg test case) at full scale is optimized to minimize the delivered power at a given ship speed by adjusting the geometry and the revolution speed. An uncertainty analysis and a wake validation are made for the CFD (Computational Fluid Dynamics) code SHIPFLOW. The minimum iteration number and grid density were carefully selected to decrease the computation time needed. The optimization is done with a parallel Adaptive Range Genetic Algorithm in the coarse grid and a local optimization starting from the optimized design is performed to check whether it is a local optimal, at least. Then the verification of the optimal propeller for both objective function and constraint in three finer grids is made. To satisfy the constraints in the finer grids, we make a manual correction by adjusting one design variable. At the same time, an automatic optimization starting from the optimum we obtained in the coarse grid is made in the finest grid with a local optimization method, DHC (Dynamic Hill Climbing). The designs by manual correction and automatic optimization are compared. Furthermore, an off-design propeller behind the same ship is also optimized with the same design variables, constraint and objective function. An optimum close to the one obtained in the near-optimum propeller optimization is found. Results indicate that the present optimization procedure can yield lower delivered power for both a near-optimum and an off-design propeller.
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55.
  • Hino, Takanori, et al. (author)
  • Introduction, conclusions and recommendations
  • 2021
  • In: Lecture Notes in Applied and Computational Mechanics. - Cham : Springer International Publishing. - 1860-0816 .- 1613-7736. ; , s. 1-21
  • Book chapter (other academic/artistic)abstract
    • The Tokyo 2015 Workshop on CFD in Hydrodynamics was the seventh in a series started in 1980. The purpose of the Workshops is to regularly assess the state of the art in Numerical Hydrodynamics and to provide guidelines for further developments in the area. The 2015 Workshop offered 16 test cases for three ship hulls. A total of 36 participating groups of CFD specialists submitted their computed results during the fall of 2015. The results were compiled by the organizers and discussed at a meeting in Tokyo in December 2015. In this chapter the background and development of the Workshops since the start are presented. The three hulls used in the 2015 Workshop are introduced and the computations requested from the participants are specified. Based on a questionnaire sent to all participants the details of their CFD methods are listed, and finally the general conclusions from each chapter and recommendations for future Workshops are presented. The detailed results of the computations are discussed in subsequent Chapters.
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56.
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58.
  • Huss, Leena, 1948-, et al. (author)
  • Finska och meänkieli
  • 2010
  • In: Sveriges nationalatlas. - Stockholm : Norstedt. - 9789187760570 ; , s. 110-121
  • Book chapter (other academic/artistic)
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59.
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60.
  • Hårdh, Birgitta, et al. (author)
  • Minnesord över Berta Stjernquist
  • 2011
  • In: Kungl. Humanistiska Vetenskapssamfundet. Årsberättelse. - 0281-272X. ; MMXI, s. 57-65
  • Journal article (other academic/artistic)
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  • Result 51-60 of 466
Type of publication
book chapter (119)
journal article (113)
conference paper (50)
doctoral thesis (42)
book (33)
review (32)
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reports (31)
editorial collection (23)
other publication (14)
licentiate thesis (6)
editorial proceedings (2)
patent (1)
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Type of content
other academic/artistic  (466)Undo refine
Author/Editor
Larsson, Lars (237)Undo refine
Larsson, Lars-Gunnar (78)
Larsson, Lars, 1945 (69)
Hårdh, Birgitta (15)
Larsson, Lars-Gunnar ... (11)
Jennbert, Kristina (9)
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Orych, Michal, 1979 (9)
Larsson, Monica (7)
Olausson, Deborah (7)
Söderberg, Bengt (6)
Larsson, Lars-Gunnar ... (6)
Iregren, Elisabeth (5)
Ekengren, Fredrik (5)
Bensow, Rickard, 197 ... (4)
Löfdahl, Lennart, 19 ... (4)
Elmroth, Erik (4)
Eslamdoost, Arash, 1 ... (4)
Helgesson, Bertil (4)
Ferner, Lars Larsson (4)
Larsson, Mats (3)
Kihl, Maria (3)
Bunte, Carin (3)
Rudebeck, Elisabeth (3)
Larsson, Lars Olof (3)
Klein, Cristian, 198 ... (3)
Malmberg, Anders, Pr ... (3)
Callmer, Johan (3)
Raag, Raimo (3)
Knutsson, K. (2)
Ellis, S. (2)
Hornborg, Alf (2)
Waldenström, Cecilia (2)
Westholm, Erik, Prof ... (2)
Ahlström, Torbjörn (2)
Tärneberg, William (2)
Lindblad, Joakim (2)
Wienberg, Jes (2)
Hino, Takanori (2)
Andrén, Anders (2)
Berglund, Björn (2)
Anglert, Mats (2)
Bengtsson, Ewert (2)
Bunte, C. (2)
von Bonsdorff, Jan (2)
Zagorska, Ilga (2)
Sandgren, P (2)
Sundin, Maria, 1965 (2)
Nilsson Stutz, Liv (2)
Rydving, Håkan, Prof ... (2)
Broberg, Leif, 1955 (2)
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University
Lund University (203)
Uppsala University (137)
Chalmers University of Technology (71)
Umeå University (21)
Swedish National Heritage Board (13)
University of Gothenburg (11)
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RISE (7)
Stockholm University (6)
Linnaeus University (3)
Royal Institute of Technology (1)
Nationalmuseum (1)
Linköping University (1)
University of Skövde (1)
Högskolan Dalarna (1)
IVL Swedish Environmental Research Institute (1)
The Institute for Language and Folklore (1)
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Language
English (266)
Swedish (163)
German (15)
Latin (7)
Danish (6)
Italian (2)
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Undefined language (2)
Finnish (1)
Polish (1)
Hungarian (1)
Japanese (1)
Korean (1)
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Research subject (UKÄ/SCB)
Humanities (273)
Engineering and Technology (74)
Social Sciences (29)
Medical and Health Sciences (18)
Natural sciences (16)
Agricultural Sciences (2)

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