Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 26 for “"hydrodynamic interaction"”.
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Simulation of the hydrodynamic interaction of bodies
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1995.
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Hydrodynamic interaction of passing ships in a shallow asymmetric canal
… computer program are developed to compute hydrodynamic interaction forces and moments on passing ships in a shallow asymmetric canal, by applying generalized Lagally's theorem. Steady lift force on the ships are estimated following standard slenderbody approach. Passing ships are assumed to …
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Unsteady hydrodynamic interaction of ships in the proximity of fixed objects
Thesis: M.S., Massachusetts Institute of Technology, Department of Ocean Engineering, 1979
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Examination of Fluid-Particle in Turbulent, Non-Dilute, Particle Suspension Flow
… suspension flow. The model, incorporates hydrodynamic interaction between particles over a range of particle volume loadings and turbulent particle Reynolds numbers.
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Dynamics Of Orientable Particulate Suspensions: Continuum Simulations Of ‘Living’ Fluids And Meso-Scale Simulations Of Anisotropic Particle Suspensions
… for. In the first part, instability caused by hydrodynamic interaction between the living cells is probed by Fluid Particle Dynamics (FPD). In the second part, Coarse-Grained Molecular Dynamics (CGMD) simulation is applied to investigate the relation between microstructure of the suspension, …
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Hydrodynamic analysis and computer simulation applied to ship interaction during maneuvering in shallow channels
A generalized hydrodynamic interaction force model is combined with a ship maneuvering simulator to provide a free-running, closed loop ship simulation capable of trajectory predictions of ships operating in close proximity in a shallow, asymmetric canal. The interaction force model is based on the …
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Steady and unsteady waves generated by a moving body and multiple bodies
… in a dense shipping traffic environment. The interaction between ships will initiate the unsteady forces/moments.;The aforementioned unsteady effects are associated with the unsteady waves on the free surface. The two main objectives of this thesis are 1) to develop a linear method and …
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N-Vinylcaprolactam based Bulk and Microgels: Synthesis, Structural Formation and Characterization by Dynamic Light Scattering
… predicted for ZIMM limit for polymer chains with hydrodynamic interaction. The reduced first cumulant Ã*(q) reached a constant value in the range of large qRg values. Appearance of plateau value indicates ZIMM limit of hydrodynamic interaction but experimental value was much lower than the …
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Dynamics and statistics of hydrodynamically interacting particles in laminar flows
… investigation of the dynamics and statistics of hydrodynamically interacting particles in low Reynolds number flows, which is discussed in three interrelated themes. The first theme focuses on polymer fractionation. With our basic model we explore the possibility to sort dumbbells with respect to …
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Hydrodynamic performance of multi-component structures in oscillatory flow, from blow-out preventer to dual Cylinder interference
… to the complexity of the structure itself, the hydrodynamics of the BOP are difficult to model and therefore is the main focus on this thesis. First a general overview will be given on the challenges of offshore systems during the drilling phase when the BOP is installed directly above the …
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Vertical forces on the coupling of a pusher tug-barge
… to the barge. Alternate methods assume that the hydrodynamic forces on each hull have no effect on the other hull. The method presented here assumes that there is a hydrodynamic interaction between the two hulls. A numerically-fast three-dimensional solution method (unified slender body theory) …
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The Computer Simulation of Dilute Solution Particle Dynamics
… motion are included in the simulation, although hydrodynamic interaction is not. A variant of the SHAKE algorithm from molecular dynamics is used to handle constraints. A systematic investigation is conducted to assess the sensitivity of conformational statistics to particle geometry, connector …
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Challenges in the design of tension moored floating wind turbines
… is installed on site. The structural dynamic and hydrodynamic interaction effects of including these WEC are analysed in detail. Novel survival modes for the WEC floats are proposed. Design considerations related to potential tendon anchor misplacement are also analysed. A platform parameter study …
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Hydrodynamic controls on multiple tidal inlet persistence
… between inlet morphology and inlet/bay hydrodynamics. At present, the only multiple tidal inlet stability model available combines a linear analytical model for the flow and an empirical relationship for equilibrium, suggesting that multiple inlet systems are unstable and ultimately all …
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Analysis and mitigation of mechanical shock effects on high speed planing boats
… and empirical study is conducted of the hydrodynamic interaction between a boat's hull and the seaway, and how this interaction results in the generation of mechanical shock. Actual acceleration data is obtained from the boats while underway in typical operating conditions, and other …
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Flow-Mediated Interaction Between a Vibrating and an Elastically-Mounted Cylinder
This study investigates the interaction between two cylinders of an identical diameter immersed in still fluid: the active cylinder is subject to forced vibration, while the adjacent passive cylinder is elastically-mounted with a damper and has only one-degree-of-freedom along the centreline of the …
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Hydrodynamic Simulations of Colloidal Gels: Microstructure, Dynamics, and Rheology
… simulations including the effects of many-body hydrodynamic interactions, Brownian motion, and interparticle interactions at a speed more than 100 times faster than Stokesian Dynamics (SD) while retaining much of the relevant physics of SD. In addition, FLD is found to be nearly as fast as …
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Structure, Dynamics and Rheology of Polymer Solutions from Coarse-Grained Molecular Dynamics: Effects of Polymer Concentration, Solvent Quality and Geometric Confinement
<p>Understanding flow-microstructure interactions in macromolecular fluids is of great</p> <p>importance in the design and optimization of ubiquitous polymer processing operations.</p> <p>Further, such interactions are routinely encountered in separation of biopolymer mixtures</p> <p>using gel …
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Swimming at low Reynolds number slip boundaries and interacting filaments
… a lot of attention is the role played by hydrodynamic interactions, including those between a cell and its fluid environment (fluid-cell), or between neighbouring cells (cell-cell). These interactions can affect dramatically the dynamics of these swimmers. This dissertation investigates …
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Geometric Mechanics of Active Particles
… an external gravitational force. This produces hydrodynamically mediated forces and torques that induce collective interactions. Kinematic Hamiltonians are identified within the equations of motion and are exploited in order to understand the periodic limit cycle behavior observed in the …
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