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Keyword: CFD
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Proceedings Papers

Proc. ASME. GT2013, Volume 6B: Turbomachinery, V06BT37A024, June 3–7, 2013
Paper No: GT2013-94966
... Computational Fluid Dynamics (CFD) models are necessary. The Euler-Lagrange approach can be used to tackle these problems due to their capability in tracking particles along the domain, relative ease in formulating and applying them to the current industrial problems in terms of acceptable computational cost...
Proceedings Papers

Proc. ASME. GT2013, Volume 6B: Turbomachinery, V06BT43A004, June 3–7, 2013
Paper No: GT2013-94137
...-processing, solver and post-processing of Numeca CFD software. This tool optimizes the intermediate casing duct including struts and a best flow path profile is obtained under the given constrained conditions. The optimization method is validated through experimental investigation. Four kinds of...
Proceedings Papers

Proc. ASME. GT2013, Volume 7B: Structures and Dynamics, V07BT30A002, June 3–7, 2013
Paper No: GT2013-94043
... bearing tribological performance is characterized by means of Computational Fluid Dynamics (CFD) simulations, based on the numerical solution of the Navier-Stokes and energy equations for incompressible flow. Realistic boundary conditions are implemented. The effects of operating conditions and texture...
Proceedings Papers

Proc. ASME. GT2013, Volume 8: Supercritical CO2 Power Cycles; Wind Energy; Honors and Awards, V008T44A020, June 3–7, 2013
Paper No: GT2013-95564
.... The proposed methodology is based on the solution of the steady three-dimensional governing equations, by means of a robust commercial CFD code. Since the effect of the turbine blades on the flow field is simulated through the introduction of momentum sources in the porous shell representing the...
Proceedings Papers

Proc. ASME. GT2013, Volume 4: Ceramics; Concentrating Solar Power Plants; Controls, Diagnostics and Instrumentation; Education; Electric Power; Fans and Blowers, V004T10A002, June 3–7, 2013
Paper No: GT2013-94157
... found that a set of general design recommendations originates from this work, whereas the optimization loops would need to be repeated for other cooling module types. locomotive cooling fan guide vanes optimization CFD efficiency acoustics sound noise 1 Copyright © 2013 by ASME...
Proceedings Papers

Proc. ASME. GT2013, Volume 3B: Heat Transfer, V03BT13A031, June 3–7, 2013
Paper No: GT2013-94700
... A coarse grid CFD methodology was employed to simulate internal flow passages with full coverage effusion cooling by imposing momentum sinks on effusion cooled surfaces based on a perforated plate pressure loss analogy. The methodology was implemented by specifying 1D Porous Jump boundary...
Proceedings Papers

Proc. ASME. GT2012, Volume 5: Manufacturing Materials and Metallurgy; Marine; Microturbines and Small Turbomachinery; Supercritical CO2 Power Cycles, 827-836, June 11–15, 2012
Paper No: GT2012-69383
... bearings with periodic egg-shaped texture applied on the stator surface is presented. Computational Fluid Dynamics (CFD) simulations are performed and processed to yield the bearing performance indices. Here, the bearing geometry and the texture characteristics are defined parametrically; a wide range of...
Proceedings Papers

Proc. ASME. GT2012, Volume 5: Manufacturing Materials and Metallurgy; Marine; Microturbines and Small Turbomachinery; Supercritical CO2 Power Cycles, 837-846, June 11–15, 2012
Paper No: GT2012-69403
... stiffness and damping in sector-pad micro- thrust bearings with artificial surface texturing is presented, based on Computational Fluid Dynamics (CFD) simulations. The bearing pads are modeled as consecutive three- dimensional independent micro-channels, each consisting of a smooth rotating wall (rotor) and...
Proceedings Papers

Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 347-356, June 11–15, 2012
Paper No: GT2012-68830
..., in case of lower conducting material, local patches of higher effectiveness are observed close to the jet exit. Film cooling Combined impingement and film cooling Conjugate heat transfer TLC measurement CFD 1 Copyright © 2012 by ASME CONJUGATE HEAT TRANSFER FROM A FLAT PLATE WITH...
Proceedings Papers

Proc. ASME. GT2012, Volume 3: Cycle Innovations; Education; Electric Power; Fans and Blowers; Industrial and Cogeneration, 489-499, June 11–15, 2012
Paper No: GT2012-69987
... data. Details of the developed methodology and implementation are discussed. Keywords: Axial Compressor, Aero Engines, Education, Variable Geometry, Meanline, Streamline Curvature, CFD. INTRODUCTION The continuous development of numerical tools, aiming at graduate and undergraduate lectures in...
Proceedings Papers

Proc. ASME. GT2012, Volume 3: Cycle Innovations; Education; Electric Power; Fans and Blowers; Industrial and Cogeneration, 913-923, June 11–15, 2012
Paper No: GT2012-68808
... feasible. In this paper, a numerical model was developed in order to characterize the injection of water at the air intake duct of a Gas Turbine. First, the expressions characterizing the model were included in the CFD software ANSYS CFX v-11 and simulated in a simple geometry (rectangular duct...
Proceedings Papers

Proc. ASME. GT2012, Volume 2: Combustion, Fuels and Emissions, Parts A and B, 543-551, June 11–15, 2012
Paper No: GT2012-68761
... < 7.5 ppm, CO < 35ppm, and a pressure-drop < 5%, hence meeting the design criteria for gas turbine engines. This study demonstrates the feasibility of achieving ultra-low NO x and CO emissions utilising a flameless oxidation regime. flameless oxidation CFD kinetics pollution pressure...
Proceedings Papers

Proc. ASME. GT2012, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation, 657-666, June 11–15, 2012
Paper No: GT2012-69506
... CFD Pulverized Coal Combustion Industrial Burner 1 Copyright © 2012 by ASME CFD MODELING OF PULVERIZED COAL COMBUSTION IN AN INDUSTRIAL BURNER Marco Torresi Dipartimento di Ingegneria Meccanica e Gestionale Politecnico di Bari Via Re David, 200, Bari 70125, Italy Tel: +39-080-596-3577, Fax...
Proceedings Papers

Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 1633-1645, June 11–15, 2012
Paper No: GT2012-69990
... For the CFD community the mesh generation is still one of the most important stages to obtain a good flow solution based on the full Navier-Stokes equations. For turbomachinery blade passages this task is not straightforward mainly due to the 3D domain and the complex geometries involved. The...
Proceedings Papers

Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 1571-1580, June 11–15, 2012
Paper No: GT2012-69142
... effectiveness with the adiabatic and the conjugate conditions; the conjugate values being much lower but more uniform. Film cooling Conjugate Adiabatic Effectiveness CFD 1 Copyright © 2012 by ASME A COMPARATIVE STUDY OF FILM COOLING EFFECTIVENESS ON A FLAT PLATE WITH ADIABATIC AND CONJUGATE...
Proceedings Papers

Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 2011-2022, June 11–15, 2012
Paper No: GT2012-68718
... The aim of this research is to identify a method of prescribing boundary conditions for CFD studies of vortex ingestion. The work illustrates the use of a validated vortex model which has been shown to give good agreement with experimental data. The model is used to generate the vortex velocity...
Proceedings Papers

Proc. ASME. GT2011, Volume 5: Heat Transfer, Parts A and B, 1023-1032, June 6–10, 2011
Paper No: GT2011-45098
... rate is small. When compared with a single jet of equal mass flow rate and Reynolds number, the shower head jets provide higher heat transfer rate but require more power for pumping. 07 05 2012 Jet impingement Shower head conjugate heat transfer TLC measurement CFD Flow...
Proceedings Papers

Proc. ASME. GT2011, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Wind Turbine Technology, 287-299, June 6–10, 2011
Paper No: GT2011-46320
.... Today’s state-of-the-art engine cycle analysis are commonly based on component mapping models which enable component interactions to be considered, while CFD simulations are carried out separately and therefore overlook those interactions. With the methodology discussed in this paper, the detailed...
Proceedings Papers

Proc. ASME. GT2010, Volume 6: Structures and Dynamics, Parts A and B, 1325-1332, June 14–18, 2010
Paper No: GT2010-23039
... can have major influence on the torque, rotating speed, and power performance. This research is focused on the turbine blade and the flow channel designs. Using CFD and experiments, the key design parameters which influence the performance of dental hand pieces can be studied. Three types of dental...
Proceedings Papers

Proc. ASME. GT2010, Volume 3: Controls, Diagnostics and Instrumentation; Cycle Innovations; Marine, 721-731, June 14–18, 2010
Paper No: GT2010-22996
...-physical and dynamic properties along the compressor. 11 01 2011 Axial Compressor Water Injection Streamline Curvature CFD humid air compression 1 Copyright © 2010 by ASME Proceedings of ASME TURBO EXPO 2010: Power for Land, Sea, and Air GT2010 June 14-18, 2010, Glasgow, UK GT2010...