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Thermodynamical second-order hydrodynamic coefficients [PDF]
Journal of High Energy Physics, 2012 Transport coefficients in non-conformal second-order hydrodynamics can be classified as either dynamical or thermodynamical. We derive Kubo formuale for the thermodynamical coefficients and compute them at leading perturbative order in a theory with ...
Moore, Guy D., Sohrabi, Kiyoumars A.
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Kubo Formulae for Second-Order Hydrodynamic Coefficients [PDF]
Physical Review Letters, 2011 At second order in gradients, conformal relativistic hydrodynamics depends on the viscosity eta and on five additional "second-order" hydrodynamical coefficients tauPi, kappa, lambda1, lambda2, and lambda3. We derive Kubo relations for these coefficients,
Moore, Guy D., Sohrabi, Kiyoumars A.
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Hydrodynamic Coefficients for Various Postures of the Underwater Manipulator [PDF]
Journal of Applied Fluid Mechanics, 2023 The hydrodynamic coefficients of underwater manipulators constantly change during their operation. In this study, the hydrodynamic coefficients of an underwater manipulator were calculated using the finite volume method to better explain its hydrodynamic
D. Duan +5 more
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Applied Sciences, 2023 Maneuverability is one of the submarine’s most important features, and is closely related to hydrodynamic coefficients. The submarine standard motion equation is the most commonly used hydrodynamic mathematical model, estimating more than 100 ...
Guo Xiang +4 more
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A SR-UKF-based method to identify submarine hydrodynamic coefficients
Zhongguo Jianchuan Yanjiu, 2021 ObjectivesThe square root unscented Kalman filter (SR-UKF) algorithm was developed for the identification of hydrodynamic coefficients, which are difficult to obtain accurately in submarine motion models.MethodsFirstly, the hydrodynamic coefficients ...
Bangjun LYU, Bin HUANG, Likun PENG
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Do Hydrodynamic Dispersion Coefficients Exist? [PDF]
Physical Review Letters, 1996 Tracer dispersion is the simplest example of the flow of an inhomogeneous two-component mixture. We assume that the two components, the “tracer” and the “solvent,” have identical behavior but are distinguishable in the sense that they are assigned different “colors.” The model may be simple, but it is neither trivial nor irrelevant.
Lowe, C.P. (author) +1 more
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Journal of Marine Science and Engineering, 2021 In this study, physical model tests are used to investigate the effects of a varying number of wave and current parameters, the gap ratios between the pipeline and seabed, the spacing ratios between the two pipelines and the diameter ratios on the ...
Xiaofei Cheng +3 more
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Estimating Hydrodynamic Coefficients of Real Ships Using AIS Data and Support Vector Regression
한국해양공학회지, 2023 In response to the complexity and time demands of conventional methods for estimating the hydrodynamic coefficients, this study aims to revolutionize ship maneuvering analysis by utilizing automatic identification system (AIS) data and the Support Vector
Hoang Thien Vu +2 more
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The Hydrodynamic Coefficient Analysis and Motion Control of the Lingyun Moveable Lander
Geofluids, 2021 A moveable lander has the advantages of low cost and strong controllability and is gradually becoming an effective autonomous ocean observation platform.
Guoxin Li, Shaowei Zhang
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Computational prediction of hydrodynamic coefficients for heave motion [PDF]
Seatific Engineering Research Journal, 2021 In this study, the hydrodynamic coefficients associated with heave motion are obtained by using unsteady Reynolds-averaged Navier-Stokes (URANS) approach. The well-known Wigley hull is selected for the calculations of uncoupled added mass and damping coefficients (A33, B33) in deep water.
ÇAKICI, Ferdi +3 more
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