Numerical simulation of supercavitation
Numerical simulation of supercavitation
... plots of numerical approximation of the density of gas at t= 3.06E-04s 88 Fig 5-5b Contour plots of numerical approximation of the density of gas at t= 5.09E-04s 88 Fig 5-5c Contour plots of numerical ... plots of numerical approximation of the density of gas at t= 2.04E-02s 90 Fig 5-7a Contour plots of numerical approximation of the pressure of water at t= 2.13E-04s 90 Fig 5-7b Contour plots of numerical ... of numerical approximation of the pressure of water at t= 1.42E-03s 92 Fig 5-7h Contour plots of numerical approximation of the density of water at t= 1.42E-03s 93 Fig 5-8a Contour plots of numerical...
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Báo cáo " Numerical simulation of sediment transport and morphology changes at the Bach Dang estuary " ppt
... tide 1% and storm wave 9B simulation (Fig 8), indicating that the waves are the dominant transport mechanism However, the tidal currents modify the transport patterns In the interior of the estuary, ... calculates tidal propagation; the current driven by the tide, waves, and wind; sediment transport; and bottom morphology change 91 Simulation specifications for circulation model and another one ... system was applied to the Bachdang estuary to examine the physical response to tide and wave forcing Five simulations were conducted for combinations of tide, fair-weather waves, and storm waves Wave...
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numerical simulation of pulsed
... displacement ͑bending͒ To verify this simulation method and use it to compute the pulsed laser bending process, a three-dimensional model is built and simulations of pulsed laser bending are conducted ... Modeling of Laser Forming,’’ Proc of Laser Institute of America, ICALEO, 83, Laser Institute of America, Orlando, FL, pp 31– 40 ͓10͔ Chen, G., and Xu, X., 2000, ‘‘3D CW Laser Forming of Thin Stainless ... center of the scanning line is produced by thermal expansion along the positive z-direction because of the free-surface boundary condition Figure 11 shows the off-plane displacement w of the...
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Numerical simulation of fracture in plain and fibre reinforced concrete
... simulation of fracture in plain concrete and fibre reinforced concrete and is organised into nine chapters and three appendices Each chapter starts with an introduction and ends with a summary The introduction ... the history of fiber reinforced concrete (FRC) and the modelling of its behaviour in light of fracture mechanics 2.2 A review of fracture mechanics and quasibrittle models The advent of fracture ... interest of studying quasibrittle materials in fracture mechanics perspective Since then, a number of fracture models have been introduced and used to predict and investigate fracture behaviour of concrete- like...
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báo cáo hóa học:" Numerical simulation of thin paint film flow" doc
... the case of inclined substrates, where gravity plays a significant physical role in the flow dynamics Numerical simulation of thin paint film flow Industrial paints used in the context of the automotive ... S.H Davis, and S.G Bankoff Long scale evolution of thin liquid films Reviews of Modern Physics, 69(3):931 – 980, 1997 Numerical simulation of thin paint film flow 15 18 C.A.J Fletcher Computational ... topography to the other Numerical simulation of thin paint film flow 19 Fig Evolution of the Mq curves: Experiments are compared to simulation results Fig 10 Comparison between simulation results from...
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Báo cáo nghiên cứu khoa học " Numerical simulation of sediment transport and morphology changes at the Bach Dang estuary " pdf
... tide 1% and storm wave 9B simulation (Fig 8), indicating that the waves are the dominant transport mechanism However, the tidal currents modify the transport patterns In the interior of the estuary, ... calculates tidal propagation; the current driven by the tide, waves, and wind; sediment transport; and bottom morphology change 91 Simulation specifications for circulation model and another one ... system was applied to the Bachdang estuary to examine the physical response to tide and wave forcing Five simulations were conducted for combinations of tide, fair-weather waves, and storm waves Wave...
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báo cáo khoa học:" Numerical simulation of in vivo intraosseous torsional failure of a hollow-screw oral implant" pdf
... strain data obtained during the clinical test that yielded failure of the bone-implant interface was implemented in definition of loading conditions in the finite element analysis In the definition ... with actual clinical conditions are questionable Because of ethical considerations, available human torque failure data are either limited to a study [10] carried on transitional implants or a case ... in finite element (FE) analysis to define torsional shear strength at yield Materials and methods Clinical findings and torque failure test A 62 year-old male patient applied for treatment of...
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Numerical simulation of submerged payload coupled with crane barge in waves
... controlling the underwater movement of payload 1.2 Offshore crane vessel By definition, a crane vessel, crane ship, crane barge or floating crane is a ship with a crane specialized in lifting heavy ... domain analysis of crane barge and payload responses merely considered a payload suspended in air only However, the hydrodynamic study of submerged moving payload coupled with crane barge in nonlinear ... behavior of crane barge and its submerged payload subjected to nonlinear waves, which becomes a critical issue with growing interest in the field of offshore installation The current research gap in...
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NUMERICAL SIMULATION OF LIQUID SLOSHING IN RECTANGULAR TANKS USING CONSISTENT PARTICLE METHOD AND EXPERIMENTAL VERIFICATION
... series of sloshing experiments are carried out making use of a hydraulic-actuated shake table Standing waves in high filling tanks, traveling waves in low filling tanks and breaking waves in a ... nonlinear wave theory to numerically study and simulate the liquid sloshing in containers The numerical study of nonlinear liquid sloshing has been actively performed since 1970s Different numerical ... the numerical simulation of free surface flow in a container Recently, Ming and Duan (2010) investigated liquid sloshing in rectangular tank using FVM based on unstructured grid A high order VOF...
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Numerical simulation of vehicle hydroplaning and skid resistance on grooved pavement
... Results of Skid Resistance using ADINA Model 5.5.1 Effect of Pavement Grooving on Skid Resistance 5.5.2 Effect of Vehicle Speed on Skid Resistance 5.5.3 Effect of Operating Conditions on Skid Resistance ... Forces Contributing to Skid Resistance 160 7.5 Variation Characteristics of Hydroplaning and Skid Resistance of Truck Tires on Grooved Pavements 161 7.5.1 Effects of Pavement Grooving on Hydroplaning ... and hydroplaning speed on grooved pavement Chapter presents the validation of the 3-dimensional finite element simulation model for skid resistance and hydroplaning analysis on grooved pavement...
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Numerical simulation of interfacial and multiphase flows using the front tracking method
... Chapter Front Tracking for Two-Phase Flow: The Method 3.2.5 35 Mesh adaptation: The front mesh As two sets of mesh are applied in the current front tracking method, the resolution of both the front ... (3.1) where L and G refer to the liquid and gas phase, respectively Further let Ω be Chapter Front Tracking for Two-Phase Flow: The Method 30 the domain of the gas phase and let Γ be the interface ... current method handles the merging of bubbles In the pursuit of improving the flow solver further, we also investigate the reformulation of the governing flow equations through the use of a sequential...
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Numerical simulation of unsaturated flow using modified transformation methods
... NUMERICAL SIMULATION OF UNSATURATED FLOW USING MODIFIED TRANSFORMATION METHODS CHENG YONGGANG (B.Eng., M.Eng., Tsinghua University) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY ... serious issue of practical concern 1.3 Convergence Problems Because of the high nonlinearity of soil hydraulic properties, convergence problems exist in numerical simulations of unsaturated flow ... angle of internal friction with respect to changes of the net stress φb angle of internal friction with respect to changes of the matric suction χ factor related to the degree of saturation of the...
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A numerical simulation of underwater shock cavitation structure interaction
... Appendix A 207 iv SUMMARY SUMMARY Accurate treatment of material interfaces and accurate modeling of unsteady cavitation are critical for simulating shock- cavitation- structure interaction The Ghost ... structure and pipe The major characteristics of such cavitation are that cavitation region is relatively large and interaction between cavitation and structure is violent Bulk cavitation in pipe ... types of cavitation, in which the shape and process of the different types of cavitation can be distinguished clearly To capture these cavitations, a robust numerical algorithm and a cavitation...
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Numerical simulation of sediment transport and morphological evolution
... NUMERICAL SIMULATION OF SEDIMENT TRANSPORT AND MORPHOLOGICAL EVOLUTION LIN QUANHONG (B.Eng and M.Eng., Tianjin University, China) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY ... Considerations of Slope Effect on Sediment Transport Most of the bed load transport equations are derived and calibrated based on the flat bed data On the other hand, the direction of the sediment transport ... conditions, the morphological evolution resulted from the bed load transport is investigated and the evolution of the bed profiles are recorded Using the present model, the numerical simulation is...
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Model development for numerical simulation of the behaviors of ph stimulus responsive hydrogels
... characteristics of the pH- stimuli responsive hydrogel based on multi-field effects formulation, and it is termed the Multi-Effect-Coupling of pH- Stimulus (MECpH) model This model accounts for the ionic ... 2.3 Thermodynamics Model ……………………………………………… 22 Mixture Theory – Multiphasic Mechano-Electrochemical Model …… 31 Development of Multi-Effect-Coupling pH- Stimulus (MECpH) Model for pHSensitive Hydrogels ... presented in Chapter for the effect of pH stimulation and Chapter for the coupling effects of chemical and electrical stimulation Discussions of the phenomenological behaviors of the hydrogel immersed...
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