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  • (PDF) CREATING A 3D MODEL OF DENTAL SPLINT

    Analyzed turbine lost power at the highest propulsion propeller speed is the highest and amounts 3339 kW. Steam content at the main propulsion turbine outlet decreases during the increase in ...

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  • (PDF) Three-dimensional optimal design of a cooled

    However, the three-dimensional optimal design of a turbine in modern industrial practice is usually carried out by pursuing high component efficiency without considering possible changes in ...

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  • Three dimensional flow at the junction between a

    A visualization of the flow on the suction side and end-wall of a passage between two neighboring turbine blades is compared with mass (heat) transfer measurements on the same surfaces. Besides the horseshoe and passage vortices, there are several smaller vortices formed near the junction of blade and end-wall whose origins are discussed. The vortices detach from the end-wall and move up the ...

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  • Three-Dimensional Inviscid Analysis of Radial Turbine

    2020-8-6 · code to a radial turbine geometry is also discussed. INTRODUCTION. The radial-inflow turbine continues to be a candidate configuration for many small size applications ranging from ground transportation to space power. The rotor passages are highly three-dimensional and have low aspect ratios compared with axial turbines.

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  • Three Dimensional Direct Turbine Blade Design Method

    The two-dimensional (2D) method, originally proposed for turbine blades, has been extended for use with 2D and three-dimensional (3D) turbine, compressor and fan blades, and isolated airfoils.

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  • Turbine from The 3D Printer – 3D Science Valley

    2019-9-22 · The component assembly consists of 68 parts made of aluminium, steel and titanium, which through component optimisation and the possibilities of Electron and Laser Beam Melting technologies replace the almost 3000 individual parts that make up the original component. The turbine …

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  • Three dimensional tidal turbine array simulations using ...

    2018-1-16 · 1 1 Three dimensional tidal turbine array simulations using 2 OpenFOAM with dynamic mesh 3 Martin Nuernberg, *Longbin Tao 4 School of Marine Science and Technology, Newcastle University, Newcastle upon Tyne, 5 NE1 7RU, UK 6 Abstract 7 The flow field characteristics in the wake of an isolated tidal turbine and tidal turbine arrays 8 of up to four devices is investigated by numerical …

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  • Three-dimensional unsteady aerodynamics of a H

    2020-11-1 · The space and time resolution have been discussed in detail in a previous work (Franchina et al., 2019a) and we just recall the main characteristics of the computational set up herein adopted to perform the new numerical campaign.The computational domain extends 4.5 turbine diameters (D) upwind from the axis of rotation and 3 diameters both laterally and downwind.

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  • Three dimensional tidal turbine array simulations

    2018-1-1 · The flow field characteristics in the wake of an isolated tidal turbine and tidal turbine arrays of up to four devices is investigated by numerical simulations solving the Reynolds Averaged Navier Stokes (RANS) equation in the Open Source OpenFOAM CFD solver to make use of the significantly increased availability of computational resources and multi-core processing.

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  • Three-Dimensional Flow in an Axial Turbine: Part 2 ...

    This paper presents an exhaustive experimental documentation of the three–dimensional nature of the flow in a one–and–one–half stage axial turbine. The intent was to examine the flow within, and downstream of, both the stator and rotor airfoil rows so as to …

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  • Three-dimensional structure of wind turbine wakes as ...

    2020-7-15 · Three-dimensional structure of wind turbine wakes as measured by scanning lidar Nicola Bodini1,2, Dino Zardi2, and Julie K. Lundquist1,3 1Department of Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, Colorado, USA 2Department of Civil, Environmental and Mechanical Engineering, University of Trento, Trento, Italy

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  • Quasi-Three-Dimensional and Three-Dimensional

    2015-2-6 · The complex three-dimensional flow in the wicket gate and the runner of a Francis turbine is investigated by applying both a quasi-three-dimensional and a three-dimensional computational method. The computations were conducted on a double grid containing the …

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  • Darrieus Wind Turbine Blade Unsteady Aerodynamics: a

    2017-4-10 · 119the optimal set-up of these simulations. Two-dimensional RANS analyses, suitably corrected 120for three-dimensional (3D) effects, such as struts resistive torque and blade tip losses, have 121been used to estimate the turbine overall performance [26] and predominantly 2D phenomena,

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  • Modal and harmonic analysis of © The Author(s) 2016

    Two models of two three-dimensional (3D) micro-turbine that are created by the finite element method are set up using the new version of the academic finite element analysis software ANSYS. The first wind turbine is a standard micro three-bladed turbine and the second one is a micro six-bladed Rutland 504.

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  • Three-dimensional flow visualization in the wake of a ...

    2013-1-24 · Three-dimensional 3-component velocity measurements were made in the near wake region of a miniature 3-blade axial-flow turbine within a turbulent boundary layer. The model turbine was placed in an open channel flow and operated under subcritical conditions (Fr = 0.13). The spatial distribution of the basic flow statistics was obtained at various locations to render insights into the spatial ...

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  • Three-dimensional simulation of unsteady flows in a

    2016-9-1 · Three-dimensional simulation of unsteady flows in a pump-turbine during start-up transient up to speed no-load condition in generating mode. Zhongjie Li, Huili Bi, Zhengwei Wang, Ze Yao Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy ...

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  • JMSE | Free Full-Text | Three-Dimensional

    Turbine is one of the key components of the ocean thermal energy conversion system (OTEC), and its aerodynamic performance and geometric dimension affect the performance of the system directly. This paper proposes a design method for the radial inflow turbine suitable for the ocean thermal energy conversion based on the parameter optimization of the ocean thermal energy conversion system.

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  • Three-dimensional simulation of unsteady flows in a

    2016-5-12 · Three-dimensional numerical simulation for a prototype pump-turbine has been performed to investigate the transient characteristics and flow behaviors in the startup process. The rotational speed, which varies with runner torque and inertial of the rotating systems, is obtained by hydraulic-force coupling method.

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  • RESTORATIVE & PROSTHETICS

    2020-11-20 · New Three-Dimensional Rotor Durability Evaluation Test (compared with previous models) 200% *Based on internal air turbine bearing durability test data These bearings enable outstanding high-speed rotation and stability and are twice as durable as existing counterparts. New Bearings Amazing power in your hands. Air Turbine RESTORATIVE & PROSTHETICS

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  • 3D printed Vertical Axis Wind Turbine (VAWT) model

    For these factors, industrial 3D printing opens up opportunities beyond the reach of conventional manufacturing processes. The applications range from 3D-printed turbine blades to innovative repair solutions. Find out more on this page about how we’ve broken new ground in turbomachinery together with our customers.

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  • Additve Manufacturing for Production and Industry |

    4. The method of claim 1, wherein the forming step includes: defining a three-dimensional model of the turbine component; and converting the three-dimensional model to a plurality of slices that each define a cross-sectional layer of the turbine component. 5.

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  • METHODS FOR MANUFACTURING TURBINE

    2003-10-20 · performance levels, the turbine and compressor had the fully three-dimensional geometry obtained in conventional turbomachines. This was achieved in the Stanford Rapid Prototyping Laboratory using the Mold SDM process to produce the intricate, three-dimensional rotors and shaft out of silicon nitride, as a single part.

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  • Performance of a Micro-scale Radial-Flow Compressor ...

    2016-1-1 · Polyetheretherketone (PEEK) is a synthetic, tooth colored polymeric material that has been used as a biomaterial in orthopedics for many years , , .The monomer unit of etheretherketone monomer polymerizes via step-growth dialkylation reaction of bis-phenolates to form polyetheretherketone.A common synthesis route for PEEK is the reaction between 4,4′-difluorobenzophenone and the …

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  • Applications of polyetheretherketone (PEEK) in oral ...

    Wafer Probe Stations. Semiconductor device tester. Designed and manufactured from scratch. Probe positioning repeatable to 2 micrometers, resolution to 100 nanometers. Closed-cycle refrigerators for cryogen-free operation from from 4K to 480K. Electromagnet superconducting magnet up to 5 tesla.

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  • start [Reduced to Practice]

    Diagnostic and failure analysis in blades of a 300 MW steam turbine. J.A. Segura, L. Castro, I. Rosales, J.A. Rodriguez, ... J.M. Rodriguez. Pages 631-641. Download PDF. Article preview. select article Damage associated with the interaction between hydrogen and microstructure in a …

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  • Engineering Failure Analysis | Vol 82, Pages 1-862 ...

    Sure. Our writing company offers a fast service with an 8-hour deadline for orders up to master’s level. Make sure to specify the deadline in the order form and our writers will write a paper within the indicated timeslot. Just proceed to submit your requirements here.

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    Sign in to FlipHTML5. Sign up for a free account. Sign in with your social network. account. SIGN IN WITH FACEBOOK. SIGN IN WITH GOOGLE. Signup Login. Forget your password?

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  • Three-dimensional wind turbine simulation and analysis

    2020-10-13 · Three-dimensional wind turbine simulation and analysis by Jennifer Ann Cordero A thesis submitted to the graduate faculty in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Major: Mechanical Engineering Major Professors: R. …

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  • Three-Dimensional Flow Predictions in Axial-Flow

    2014-12-23 · Three-Dimensional Flow Predictions in Axial-Flow Turbine Cascades O ... Numerical investigations of the three-dimensional flowfields in a turbine linear cascade and in an annular, non-rotating turbine cascade have been carried out. ... In the experimental set-up for the annular cascade the hub wall upstream of the blades could be either ...

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  • A Three-Dimensional Computational Study of

    2014-9-30 · Although this is of great value in showing how pulsating flow will affect the performance of the double entry turbine, the level of detail with which this can be studied is limited. This paper is the first to use a three-dimensional computational analysis to study the flow structures within a double entry turbine under conditions of pulsating flow.

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  • Three-dimensional X-ray tomography for multiscale ...

    Three-dimensional X-ray tomography for multiscale characterization and fatigue damage investigations of composites for wind turbine blades. Mikkelsen, Lars Pilgaard. 2018. Abstract from Civil Engineering Seminar Series (CESS), Lausanne, Switzerland.

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  • Three-dimensional flow field around and downstream

    Three-dimensional, three-component mean velocity fields have been measured around and downstream of a scale model vertical axis wind turbine (VAWT) operated at tip speed ratios (TSRs) of 1.25 and 2.5, in addition to a non-rotating case. The five-bladed turbine model has an aspect ratio (height/diameter) of 1 and is operated in a water tunnel at a Reynolds number based on turbine diameter of ...

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  • Nonaxisymmetric Turbine End Wall Design: Part I—

    1999-2-1 · A linear design system, already in use for the forward and inverse design of three-dimensional turbine aerofoils, has been extended for the design of their end walls. This paper shows how this method has been applied to the design of a nonaxisymmetric end wall for a turbine rotor blade in linear cascade.

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  • Three-dimensional effects of trailing edge flap and ...

    Three-dimensional effects of trailing edge flap and winglet integrated on up-scale wind turbine blade Motsamai, O. S.; Muiruri, P. I. Abstract. Wind turbines must generate wind power cost-effectively for the wind power to remain viable and competitive among other renewable resources. ...

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  • Takumi Sato - Three-dimensional measurement of

    In order to construct the skill acquisition method for a common treatment of dental caries, it is necessary to prepare quantitative guidelines for Dental students.

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  • In this study, measurement and analysis for the movements of fingers and turbine have been conducted during tooth removal and restoration process using three-dimensional motion capture.

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  • Turbine Generators - FM Global

    2016-4-4 · The turbine-hall mock-up was fabricated from steel, though an actual turbine pedestal or foundation would typically be constructed from concrete; however, the FM Global mock-up needed to be at least somewhat “portable.” The pedestal alone measured 15-ft. wide x 20-ft. long x 18-ft. high (4.6-m wide x 6-m long x 5.5-m high), with a 7.5-

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  • Emerging trends in endodontic irrigation - Dental Journal

    Three-dimensional obturation of the root canal system. As endodontists, our main goal should be to focus on the predictable elimination of ... 2mm with an “up and down” action every six seconds as each canal is flushed. This up and down action removes micro-gas ... connected to the turbine …

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  • H. M. El-Batsh et al., Three Dimensional Heat Transfer ...

    2013-6-29 · This study presents experimental and numerical investigation for three-dimensional heat transfer characteristics in a turbine blade. An experimental set-up was installed with a turbine cascade of five blade channels. Blade heat transfer measurements were performed for the middle channel under uniform heat flux boundary conditions.

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  • Three-dimensional Navier-Stokes simulations of

    2012-5-23 · Three-dimensional Navier-Stokes simulations of turbine rotor-stator interaction. Part I - Methodology. Man Mohan Rai

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  • Three-Dimensional Flow in an Axial Turbine: Part 1 ...

    2015-3-18 · This paper presents an exhaustive experimental documentation of the three–dimensional nature of the flow in a one–and–one–half stage axial turbine. The intent was to examine the flow within, and downstream of, both the stator and rotor airfoil rows so as …

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  • Numerical Flow Analysis of Fully Three-Dimensional

    2015-4-15 · Koya, M, & Kotake, S. 'Numerical Flow Analysis of Fully Three-Dimensional Turbine Cascades.' Proceedings of the ASME 1984 International Gas Turbine Conference and Exhibit . Volume 1: Turbomachinery .

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  • Three dimensional flow simulation of load rejection of

    2012-4-28 · Three dimensional (3D) unsteady, incompressible flows in a pump-turbine during a transient process of load rejection were studied using the computational fluid dynamics method. The dynamic mesh (DM) method and remeshing method combined with non-conformal grid boundaries were applied to simulate the rotation of guide vanes. The fluid coupling and DM method were used to calculate the …

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  • Three Dimensional Heat Transfer Analysis of High

    2010-2-16 · 'Three Dimensional Heat Transfer Analysis of High Pressure Turbine Blade.' Proceedings of the ASME Turbo Expo 2009: Power for Land, Sea, and Air . Volume 3: Heat Transfer, Parts A and B .

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  • Three-dimensional effects and arm effects on

    Downloadable (with restrictions)! Three-dimensional effects in studying a vertical axis tidal current turbine are modeled using a newly developed vortex method. The effects on predicting power output and wake trajectory are analyzed in particular. The numerical results suggest that three-dimensional effects are not significant when the height of the turbine is more than seven times the turbine ...

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  • Additive Manufacturing - Roland Berger

    2021-7-1 · making a three-dimensional solid object of virtually any shape from a digital model ... > Potential volume for new turbine series could be up to several thousand per year ... > Faster production – One AM machine produces up to 450 crowns per day, while a dental …

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  • Takumi Sato - Three-dimensional measurement of

    In order to construct the skill acquisition method for a common treatment of dental caries, it is necessary to prepare quantitative guidelines for Dental students.

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  • In this study, measurement and analysis for the movements of fingers and turbine have been conducted during tooth removal and restoration process using three-dimensional motion capture.

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  • Additive manufacturing of composite materials by FDM ...

    Three dimensional printing has become during the past years an incredibly useful tool for rapid ... turbine blades, complex metallic implants, samples for medical implant application,p arts of the defense industry ±0.02 - 0.4mm LOM automotive ... (up to a quarter of hour) to remove the building support;

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