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  • Three-Dimensional Navier-Stokes Simulations of Turbine ...

    2014-6-16 · Three-Dimensional Navier-Stokes Simulations of Turbine Rotor-Stator Interaction; Part I - Methodology Man Mohan Rai* NASA Ames Research Center, Moffett Field, California Fluid flows within turbomachinery tend to be extremely complex. Understanding such flows is crucial to

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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 …

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  • Steam Turbines for Power Generation | GE Steam Power

    2021-7-9 · ARABELLE 1700. Nuclear reheat. Up to 75bar 300°C 1090psig 570F. 1200 - 1900MW. GE’s Arabelle turbine is the most powerful nuclear steam turbine in operation. Suiting all reactors type, from 700MW up to 1,900MW, the Arabelle is highly efficient, reliable, and cost effective. Learn more about Arabelle 1700.

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  • Three-Dimensional Inviscid Analysis of Radial Turbine Flow ...

    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 dental model constructed from an

    Introduction: The purposes of this study were (1) to discover a simple method for computing an average dental form, (2) to evaluate the validity of the new computing method, and (3) to build an average digital dental model based on the resulting average dental form. Methods: Dental casts of 51 adults were scanned, and 3-dimensional virtual models were reconstructed by using …

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

    2020-7-15 · Three-dimensional structure of wind turbine wakes 2883 Figure 1. Schematic view of the part of the wind farm in central Iowa where the CWEX-13 field campaign took place. The row of four turbines whose wakes are detected by the scanning lidar is highlighted in a purple ellipse.

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  • Three-Dimensional Aerodynamic Design Optimization of a ...

    2010-9-27 · Three-Dimensional Aerodynamic Design Optimization of a Turbine Blade by Using an Adjoint Method Jiaqi Luo, Jiaqi Luo Department of Mechanical and Aerospace Engineering, University of California, Irvine, Irvine, CA 92697-3975. e-mail: [email protected] Search for other works by this author on:

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  • Three-Dimensional Performance Analysis of a Radial-Inflow ...

    2021-3-5 · ducted one-dimensional design and detailed th ree-dimensional CFD analysis of the radial inflow turbine, and compared the results of one-dimensional design and three-dimen-sional CFD simulation. At the same time, the performance of the turbine is verified by changing the inlet and outlet conditions of the radial turbine under design conditions. 2.

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  • JMSE | Free Full-Text | Three-Dimensional Performance ...

    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 …

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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 to delineate the dominant physical mechanisms.

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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. Ganesh Rajagopalan and Robert C. Brown

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  • Three-Dimensional Navier-Stokes Heal Transfer Predictions ...

    2020-8-6 · turbine in a large scale rotating rig over a range of Reynolds numbers and flow coefficients. Full span heat transfer data were obtained on both surfaces of the ro-tor, and on the hub endwall. The heat transfer analysis was done using the steacly-state three-dimensional analysis developed by Chiton(11-12). This is an explicit, tlnite-difference,

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

    2020-7-15 · Three-dimensional structure of wind turbine wakes 2883 Figure 1. Schematic view of the part of the wind farm in central Iowa where the CWEX-13 field campaign took place. The row of four turbines whose wakes are detected by the scanning lidar is highlighted in a purple ellipse.

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  • Three dimensional optimization of small-scale axial ...

    2017-2-1 · Three-dimensional optimization of axial turbine stage is presented. • Six organic fluids suitable for low-temperature heat source are considered. • Three-dimensional optimization has been done for each working fluid. • The results showed highlight the potential of …

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  • Three-dimensional dental imaging by spiral CT. A progress ...

    Objective: To demonstrate the feasibility of using spiral computed tomographic data for three-dimensional image acquisition, display, and segmentation of dental structures and lesions and to demonstrate the feasibility of metal artifact suppression. Study design: Isolated extracted teeth, a dry mandible, cadaver mandible, and cadaver head were scanned and reconstructed using spiral …

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  • Three dimensional resonant vibrations and stresses in ...

    2020-10-13 · 'Three dimensional resonant vibrations and stresses in turbine blade groups' (1981). Thesis. Rochester Institute of Technology. Accessed from This Thesis is brought to you for free and open access by RIT Scholar Works. It has been accepted for inclusion in

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  • Monopile Foundation - an overview | ScienceDirect Topics

    2021-3-5 · Three-Dimensional Performance Analysis of a Radial–Inflow Turbine for Ocean Thermal Energy Conversion Journal of Marine Science and Engineering ( IF 2.458) Pub Date : 2021-03-05, DOI: Yun Chen, Yanjun Liu, Li Zhang, Xiaowei Yang

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  • Three-Dimensional Performance Analysis of a Radial-Inflow ...

    2021-3-5 · The conclusion is that the three-dimensional CFD results of the turbine are in good agreement with the one-dimensional design, and the internal flow field of the turbine is stable, without obvious backflow and eddy current, which meets the application requirements of the ocean thermal energy conversion.

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  • Three-dimensional Navier-Stokes simulations of turbine ...

    2012-5-23 · Three-dimensional Navier-Stokes simulations of turbine rotor-stator interaction. Part I - Methodology. Man Mohan Rai; Man Mohan Rai. NASA Ames Research Center, Moffett Field, California ... Quasi-three-dimensional calculation for the effect of axial gap variation on the performance of an advanced compressor stage.

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  • Advanced Three-Dimensional Aerodynamic Design for Next ...

    2021-5-13 · This paper focuses on the turbine component. For the 1,700 C class gas turbine the load on a turbine blade in normal operating conditions is about 1.3 times greater than that of a conventional turbine. To maintain high adiabatic efficiency, which decreases as blade loading increases, a new concept of three-dimensional design is under development.

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  • Quasi-Three-Dimensional and Three-Dimensional Flow ...

    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 stationary wicket gate and the rotating runner.

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  • Three-Dimensional Gas Turbine Combustor Emissions

    2015-3-3 · Rizk, NK, & Mongia, HC. 'Three-Dimensional Gas Turbine Combustor Emissions Modeling.' Proceedings of the ASME 1992 International Gas Turbine …

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  • Three-dimensional flow field around and downstream of a ...

    The turbine wake is highly three-dimensional and asymmetric throughout the investigated region, which extends up to 7 diameters downstream. A vortex pair, generated at the upwind-turning side of the turbine, plays a dominant role in wake dynamics by entraining faster fluid from the freestream and aiding in wake recovery. The higher TSR case ...

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  • Three-dimensional flow field around and downstream of a ...

    2016-2-17 · 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 …

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  • Three-dimensional manufacturing methods and systems for ...

    TECHNICAL FIELD. The present application and the resultant patent relate generally to gas turbine engines and more particularly relate to three-dimensional manufacturing methods and systems for complex hot gas path turbine components and the like with improved cooling capacity.

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  • Three Dimensional Unsteady Pressure Measurements for an ...

    A complete set of unsteady blade surface pressure measurements is presented for a single turbine blade oscillating in a three dimensional bending mode. Results are provided for five spanwise sections at 10%, 30%, 50%, 70% and 90% of span.

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  • Three-Dimensional In Situ XCT Characterisation and FE ...

    Three-dimensional (3D) characterisation and modelling of cracking in concrete have been always of great importance and interest in civil engineering. In this study, an in situ microscale X-ray computed tomography (XCT) test was carried out to characterise the 3D microscale structure and cracking behaviour under progressive uniaxial compressive loading.

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  • Three-dimensional dental model constructed from an

    2017-4-8 · Three-dimensional dental model constructed from an average dental form Introduction The purposes of this study were (1) to discover a simple method for computing an average dental form, (2) to evaluate the validity of the new computing method, and (3) to build an average digital dental model based on the resulting average dental form.

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  • THREE DIMENSIONAL CFD SIMULATION OF A

    2012-12-27 · This work aim was to insert in this scenario the basis for the three dimensional fluid dynamic simulation of a turbocharger for motorsport application, starting from the turbine component. Several steps in building the model are normally required, nevertheless bringing to its most reliable behaviour aligned to the calibration values.

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  • Three Dimensional Unsteady Flow for an Oscillating

    The results of two investigations, conducted on the aerodynamic response of a turbine blade oscillating in a three dimensional bending mode, are presented in this paper. The first is an experimental and computational study, designed to produce detailed three dimensional test cases for aeroelastic applications and examine the ability of a 3D ...

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  • Three Dimensional Dental Anatomy Software Program for ...

    Teaching Oral Anatomy using Digital Interactive Dental Models. Tooth Explorer TM is a three dimensional dental software program designed to teach oral anatomy in a highly efficient digital environment. This program provides dentistry students with an interactive, three-dimensional dental library of 32 individual adult teeth.

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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. Ganesh Rajagopalan and Robert C. Brown

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  • Three-dimensional dental arch changes of patients ...

    1. Dental Press J Orthod. 2014 Jul-Aug;19(4):71-9. Three-dimensional dental arch changes of patients submitted to orthodontic-surgical treatment for correction of Class II malocclusion. Peixoto AP, dos Santos Pinto A, Garib DG, Gonçalves JR.

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  • An Experimental Investigation of the Three-Dimensional ...

    2015-4-1 · A detailed experimental investigation of the three-dimensional subsonic flow was carried out in a typical nozzle and impulse configuration of plane turbine cascades with a chord length 0.5 m. Flow parameters were measured within the passage and behind the cascade using a …

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  • Three-dimensional accuracy of different impression ...

    2015-9-1 · The aim of this in vitro study was to compare the three-dimensional accuracy of open-tray and three closed-tray impression techniques. Materials and methods Three acrylic resin mandibular master models with four parallel implants were used: Biohorizons (BIO), Straumann tissue-level (STL), and Straumann bone-level (SBL).

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  • Detailed Three-Dimensional Velocity Field Measurements

    2020-1-21 · A 6.67 scale model of the Advanced Recirculation Total Impingement Cooling (ARTIC) gas turbine vane insert’s leading edge was designed, built using stereolithography (SLA) fabrication methods, and tested using Magnetic Resonance Velocimetry (MRV), a non-invasive data acquisition technique that captures three-dimensional, three-component velocity fields of a copper sulfate …

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  • Free 3D Models - Download Free 3D Models 3DExport

    Download Free 3D Models. Some of these 3d models are ready for games and 3d printing. Available formats: c4d, max, obj, fbx, ma, blend, 3ds, 3dm, stl - 3DExport.com

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  • AMT - Three-dimensional structure of wind turbine wakes

    Three-dimensional structure of wind turbine wakes as measured by scanning lidar. Abstract. The lower wind speeds and increased turbulence that are characteristic of turbine wakes have considerable consequences on large wind farms: turbines located downwind generate less power and experience increased turbulent loads.

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  • Using three-dimensional geometric morphometric and

    2020-11-1 · Treeshrews are small, Indomalayan mammals closely related to primates. Previously, three-dimensional geometric morphometric analyses were used to assess patterns of treeshrew lower second molar morphology, which showed that the positions of molar landmarks covary with intraordinal systematics.

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  • Three-Dimensional Numerical Simulation to Mud Turbine

    Hydraulic performance analysis was discussed for a type of turbine on generator used for LWD. The simulation models were built by CFD analysis software FINE/Turbo, and full three-dimensional numerical simulation was carried out for impeller group. The hydraulic parameter such as power, speed and pressure drop, were calculated in two kinds of medium water and mud. Experiment …

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  • Three-Dimensional CFD Analysis of a Gas Turbine

    2009-8-3 · 'Three-Dimensional CFD Analysis of a Gas Turbine Combustor for Medium/Low Heating Value Syngas Fuel.' Proceedings of the ASME Turbo Expo 2008: Power for Land, Sea, and Air . Volume 4: Heat Transfer, Parts A and B .

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  • E 26 Three Dimensional Modeling for Design Fall 2017

    2019-2-3 · Three Dimensional printing turn in 2 -3 pages of your concept designs (sketches) before leaving lab (10 pts) Blade design due by Th. 10/26 midnight, upload to bCourse ... Wind turbine testing is scheduled for Tu. Dec. 5 from 9-12 and 1-4 in Hesse Hall basement

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  • Three-Dimensional Modeling and Analysis for Runner

    In order to improve the design and the two-dimensional drawing identifying technology of freeform surface for the complicated components, such as turbine runner blades, based on the strong modeling technology of CAD/CAM and the software UG of CAD/CAM, detailed analyses three-dimensional modeling of turbine runner, then explain the design difficulties and three-dimensional …

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  • A Novel Intelligent Fault Diagnosis Approach for Early ...

    2021-1-18 · Aero-turbines usually work in various non-stationary and harsh operating environments. Its blades easily appear early crack faults in long-time operation, and it is difficult to dig out discriminant features of early crack. To solve these problems, in the paper, a novel intelligent approach for early crack diagnosis of turbine blades using three-dimensional blade tip clearance …

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  • Three Dimensional Performance Prediction of Advanced

    2015-2-25 · The present study compares standard helical flat vane performance with a low loss curved vane designed by the author for idle, takeoff and cruise conditions. The results from a three dimensional viscous numerical flow simulation show the curved swirl vane to be clearly superior to the standard flat helical swirl vane.

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  • Dynamic analysis of three-dimensional drivetrain system

    Save Big on new & used 3D Printers from top brands like Creality 3D, Makerbot, Prusa & more. Shop our extensive selection of products and best online deals. Free Shipping for many items!

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