Results 11 to 20 of about 196,918 (182)

Study on determination method of hydrodynamic coefficient of Marine pile foundation [PDF]

E3S Web of Conferences, 2020
The irregular waves are simulated by using standard spectrum. Instantaneous value method, Fourier analysis method, least square method and "harbour hydrological code" are used to determine the moment force of coefficient CM and drag coefficient CD.
Zongnan Jiang
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Towards a Simple Model of Compressible Alfvenic Turbulence [PDF]

, 1997
A simple model collisionless, dissipative, compressible MHD (Alfvenic) turbulence in a magnetized system is investigated. In contrast to more familiar paradigms of turbulence, dissipation arises from Landau damping, enters via nonlinearity, and is ...
A. Chekhlov, A. Rogister, B. T. Tsurutani, B.T. Tsurutani, C.F. Kennel, D. Forster, D.A. Roberts, D.C. Montgomery, E. Mjølhus, E. Mjølhus, G.K. Batchelor, G.P. Zank, J.-D. Fournier, J.V. Shebalin, M. Neugebauer, M. V. Medvedev, M.A. Malkov, M.V. Medvedev, M.V. Medvedev, M.V. Medvedev, P. H. Diamond, P.H. Diamond, P.J. Hansen, R.H. Kraichnan, R.H. Kraichnan, S. Ghosh, S. Rauf, S.L. Woodruff, S.R. Spangler   +28 more
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Research on hydrodynamic characteristics of cylinder planing

Xibei Gongye Daxue Xuebao, 2021
This paper selects SST k-w turbulence model and VOF wave to construct a numerical calculation model of moving body planning on a flat free surface based on STAR-CCM+ numerical simulation software. The construction model is checked through foreign classic

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Resistance and reconfiguration of natural flexible submerged vegetation in hydrodynamic river modelling [PDF]

, 2015
In-stream submerged macrophytes have a complex morphology and several species are not rigid, but are flexible and reconfigure along with the major flow direction to avoid potential damage at high stream velocities.
Bal, Kris D, Buis, Kerst, Meire, Dieter, Meire, Patrick, Schoelynck, Jonas, Temmerman, Stijn, Troch, Peter, Verschoren, Veerle   +7 more
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A New Six-DoF Parallel Mechanism for Captive Model Test

Polish Maritime Research, 2020
In order to obtain the hydrodynamic coefficients that can save cost and meet the accuracy requirements, a new hydrodynamic test platform based on a 6DoF (six degrees of freedom) parallel mechanism is proposed in this paper.
Lu Yun, Wu Jinbo, Li Weijia, Wu Yaozhong
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Rotational and translational self-diffusion in concentrated suspensions of permeable particles [PDF]

, 2011
In our recent work on concentrated suspensions of uniformly porous colloidal spheres with excluded volume interactions, a variety of short-time dynamic properties were calculated, except for the rotational self-diffusion coefficient.
Bogdan Cichocki, Brinkman H. C., Eligiusz Wajnryb, Gerhard Nägele, Gustavo C. Abade, Happel J., Kim S., Maria L. Ekiel-Jeżewska, Nägele G., Pusey P. N.   +9 more
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Numerical Study on Hydrodynamic Coefficient Estimation of an Underactuated Underwater Vehicle

Journal of Marine Science and Engineering, 2022
Hydrodynamic coefficient estimation is crucial to the shape design, dynamic modeling, and control of underwater vehicles. In this paper, we conduct a numerical study on the hydrodynamic coefficient estimation of an underactuated underwater vehicle ...
Lin Hong, Xin Wang, Desheng Zhang, Hang Xu   +3 more
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Surface charge and hydrodynamic coefficient measurements of {\it Bacillus subtilis} spore by Optical Tweezers

, 2014
In this work we report on the simultaneous measurement of the hydrodynamic coefficient and the electric charge of single {\it Bacillus subtilis} spores.
Isticato, Rachele, Pesce, Giuseppe, Ricca, Ezio, Rusciano, Giulia, Sasso, Antonio, Sirec, Teja   +5 more
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Lithium depletion in solar-like stars: effect of overshooting based on realistic multi-dimensional simulations [PDF]

, 2017
We study lithium depletion in low-mass and solar-like stars as a function of time, using a new diffusion coefficient describing extra-mixing taking place at the bottom of a convective envelope.
Baraffe, I., Constantino, T., Folini, D., Goffrey, T., Popov, M. V., Pratt, J., Viallet, M., Walder, R.   +7 more
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Predicting underwater unmanned vehicle dynamic recovery process in nonlinear watershed based on BP neural network

Xibei Gongye Daxue Xuebao
Because of a nonlinear watershed′s interference during the recovery of an unmanned underwater vehicle (UUV), a closed-loop control method for optimizing the recovery path of the UUV based on the BP neural network is proposed.
DU Xiaoxu, LI Hanyu, LIU Xin
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