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1-20 of 22
Keywords: CFD
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Proceedings Papers
Accuracy Improvement of Flamelet Generated Manifold (FGM) Model in Modeling Partially Premixed Combustion Systems by Combining Machine Learning
Available to Purchase
Proc. ASME. GTINDIA2023, ASME 2023 Gas Turbine India Conference, V001T04A001, December 7–8, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2023-117326
..., depending upon the local condition, and hence can improve accuracy. However, such workflow requires adding capabilities in Computational Fluid Dynamic (CFD) code to generate the two types of PDF tables, keeping them in the memory during the execution of the run and fetching values from corresponding tables...
Proceedings Papers
Performance Prediction of a Swash Plate Piston Pump Using 3D CFD Simulation
Available to Purchase
Proc. ASME. GTINDIA2023, ASME 2023 Gas Turbine India Conference, V001T01A003, December 7–8, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2023-118395
... to weight ratio. The design of such high-pressure pumps is challenging as its performance is affected by cavitation/aeration and various leakages among the piston, cylinder block, valve plate, slippers and swash plate at high operating speed. Computational Fluid Dynamics (CFD) simulations provide detailed...
Proceedings Papers
Life Prediction of Thermal Barrier Coated C3X Gas Turbine Blade of CMSX-4 Material
Available to Purchase
Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T12A002, December 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2021-76004
... layers of coatings i.e., top coat, bond coat and thermally grown oxide with suitable thickness were generated by the mesh offset technique which was applied to an uncoated blade to model the coated blade. Thereafter steady-state 3D conjugate heat transfer analysis (CFD) with k-ε turbulence model by Ansys...
Proceedings Papers
Design of Duct Passages for an Air Turbine Starter Test Rig
Available to Purchase
Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T12A006, December 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2021-76152
..., different shaped bolts and varying size of transition pieces are analyzed using the enterprise version of CFD tool, ANSYS. Three dimensional mesh independent simulations using k-epsilon turbulence model are carried out for a combined geometry of inlet duct, rotor-stator combination, outlet ducts together...
Proceedings Papers
3D CFD Approach to Predict the Performance of a Centrifugal Compressor With Surge and Choke Limits
Available to PurchaseAbishek Sriram, Jeff Schlautman, Mehul Varshney, Dipak Maiti, Shyam Sundar Pasunurthi, Hui Ding, Raj Ranganathan
Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T04A008, December 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2021-76045
... as a virtual test bed for compressor development. In this work, a CFD methodology has been developed to predict the performance of a centrifugal compressor with its surge and choke limits. The transient, compressible flow in a moving domain with body-fitted unstructured mesh is solved in Simerics-MP...
Proceedings Papers
Effect of Airfoil Vortex Generator on the Performance and Stability of a Transonic Axial Compressor
Available to Purchase
Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T04A002, December 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2021-75881
... Abstract In the present research work, effect of airfoil vortex generator on performance and stability of transonic compressor stage is investigated through CFD simulations. In turbomachines vortex generators are used to energize boundary and generated vortex is made to interact with tip...
Proceedings Papers
Effect of Rotor Tip Casing Treatment on the Performance and Stability of a Transonic Axial Compressor
Available to Purchase
Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T04A003, December 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2021-75882
... treatment configurations. A maximum stall margin improvement of 3% was achieved with a particular slot configuration, but without any increase in compressor stage efficiency. transonic axial compressor slotted casing stall margin CFD NASA stage 37 Proceedings of the ASME 2021 Gas Turbine...
Proceedings Papers
Numerical Study of Single Pad Externally Adjustable 120° Pad Bearing Using Fluid Structure Interaction
Available to Purchase
Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T10A008, December 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2021-76427
... (or negative) and downward (or positive) direction on bearing clearance will lead to problems like high heat generation the bearing performance is predicted for various eccentricity and thermal distortion. Circular profiled bearings provide minor ratios using the CFD technique. Later the influence of fluid...
Proceedings Papers
Numerical Study of Part Clearance and Free Stream Turbulence on High End-Wall LP Turbine Nozzle Annular Cascade
Available to Purchase
Proc. ASME. GTINDIA2019, Volume 1: Compressors, Fans, and Pumps; Turbines; Heat Transfer; Structures and Dynamics, V001T02A023, December 5–6, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2019-2663
.... This clearance induces leakage flow and formation of the leakage vortex which interacts with the secondary flow in the vane passage. In this paper, the numerical study is performed on high endwall angle vane geometry of 2nd stage LPT from Pratt and Whitney E3 engine using commercially available CFD tool ANSYS...
Proceedings Papers
Estimation of the Influence of the Inlet Nonuniformity on the Performance of a Fan of a Turbofan Engine
Available to Purchase
Proc. ASME. GTINDIA2019, Volume 1: Compressors, Fans, and Pumps; Turbines; Heat Transfer; Structures and Dynamics, V001T01A002, December 5–6, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2019-2391
... the duct is blocked, the more its parameters are deteriorated. Moreover, the deterioration is not linear, but according to the dependence of the 2nd order. Keywords: Fan, CFD, Nonlinear Harmonic Analysis (NLH), Inlet Nonuniformity. NOMENCLATURE G mass flow rate of the working fluid, kg/s p* total pressure...
Proceedings Papers
The Concept of a Multi-Level Optimization Model of the Centrifugal Compressor Workflow
Available to Purchase
Proc. ASME. GTINDIA2019, Volume 1: Compressors, Fans, and Pumps; Turbines; Heat Transfer; Structures and Dynamics, V001T01A003, December 5–6, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2019-2392
.... One of the possible identification algorithms and the results of its successful testing are given on the example of a centrifugal compressor stage developed and tested at NASA. CFD mathematical model centrifugal compressor efficiency THE CONCEPT OF A MULTI-LEVEL OPTIMIZATION MODEL...
Proceedings Papers
Simulation of CO Emission in Primary and Secondary Zone of a Small Gas Turbine Combustion Chamber Using CFD and Reactors Network
Available to PurchaseIvan A. Zubrilin, Nikita I. Gurakov, Alexander S. Semenikhin, Oleg V. Kolomzarov, Sergey G. Matveev, Vladislav M. Anisimov
Proc. ASME. GTINDIA2019, Volume 2: Combustion, Fuels, and Emissions; Renewable Energy: Solar and Wind; Inlets and Exhausts; Emerging Technologies: Hybrid Electric Propulsion and Alternate Power Generation; GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery, V002T04A017, December 5–6, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2019-2594
...SIMULATION OF CO EMISSION IN PRIMARY AND SECONDARY ZONE OF A SMALL GAS TURBINE COMBUSTION CHAMBER USING CFD AND REACTORS NETWORK Ivan A. Zubrilin, Nikita I. Gurakov, Alexander S. Semenikhin, Oleg V. Kolomzarov, Sergey G. Matveev, Vladislav M. Anisimov Samara National Research University, Samara...
Proceedings Papers
Heat Transfer Enhancement With Vortex Generators
Available to Purchase
Proc. ASME. GTINDIA2019, Volume 1: Compressors, Fans, and Pumps; Turbines; Heat Transfer; Structures and Dynamics, V001T03A010, December 5–6, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2019-2560
... Abstract In this research, heat transfer and pressure drop from a tube with vortex generators (VGs) insert are numerically investigated. The effects of heights, attack angles of VGs inside a tube on heat transfer and flow behavior are investigated. CFD simulations, with and without VGs insert...
Proceedings Papers
Performance Enhancement of a Hydraulic Savonius Turbine by Optimizing Overlap and Gap Ratios
Available to Purchase
Proc. ASME. GTINDIA2019, Volume 2: Combustion, Fuels, and Emissions; Renewable Energy: Solar and Wind; Inlets and Exhausts; Emerging Technologies: Hybrid Electric Propulsion and Alternate Power Generation; GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery, V002T06A016, December 5–6, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2019-2670
... of the turbine are simulated by using the computational fluid dynamics (CFD) code Star-CCM+. In the optimization process, all simulations are driven by the in-house software OPAL++. The output power coefficient (Cp) is considered as a single target function to be maximized. The performance of the optimal...
Proceedings Papers
Parametric Studies on Gas Turbine Labyrinth Seal for the Secondary Air Flow Optimization at Static and Rotating Conditions
Available to PurchaseKarthick Raja Kaliraj, Giridhara Babu Yepuri, Jayakumar Janardanan Sarasamma, Kishor Kumar, Felix Jesuraj
Proc. ASME. GTINDIA2019, Volume 1: Compressors, Fans, and Pumps; Turbines; Heat Transfer; Structures and Dynamics, V001T02A006, December 5–6, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2019-2397
..., and the numerical data of the same case is validated with the experimental data. The k-omega SST turbulence model is considered with 5% turbulence intensity for the CFD analysis. At a particular seal clearance, as the number of teeth increases the leakage flow is found to be decreased. The leak flow is found...
Proceedings Papers
Acoustic Investigation on Unmanned Aerial Vehicle’s Rotor Using CFD-MRF Approach
Available to Purchase
Proc. ASME. GTINDIA2019, Volume 2: Combustion, Fuels, and Emissions; Renewable Energy: Solar and Wind; Inlets and Exhausts; Emerging Technologies: Hybrid Electric Propulsion and Alternate Power Generation; GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery, V002T08A005, December 5–6, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2019-2430
...-aided design of base propeller and three different versions propeller with leading-edge modifications are generated with the help of CATIA for Computational Fluid Dynamics (CFD) simulations. Comparative noise variation simulations between the existing and the propellers with modification are performed...
Proceedings Papers
Design and Testing of a Can Combustor for a Small Gas Turbine Application
Available to Purchase
Proc. ASME. GTINDIA2013, ASME 2013 Gas Turbine India Conference, V001T03A011, December 5–6, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2013-3691
.... The igniter used is a high energy igniter with ignition energy of 2J and 60 sparks per minute. The combustor is modelled, meshed and analysed using the commercially available ansys-cfx code. The geometry of the combustor is modified iteratively based on the CFD results to meet the design requirements...
Proceedings Papers
Effect of Trailing Edge Crenulation on the Performance and Stall Margin of a Transonic Axial Compressor
Available to Purchase
Proc. ASME. GTINDIA2013, ASME 2013 Gas Turbine India Conference, V001T01A018, December 5–6, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2013-3768
... wake fluid. Considering the positive effects of crenulation in a cascade, it was hypothesized that the same technique would work in a rotating compressor to enhance its performance and stall margin. However, the present CFD simulations on a transonic compressor rotor have given mixed results. Whereas...
Proceedings Papers
CFD Code Validation and Qualitative Study of Effects of Tip Clearance Variation on Performance of Transonic Axial Compressor Rotor
Available to Purchase
Proc. ASME. GTINDIA2012, ASME 2012 Gas Turbine India Conference, 115-121, December 1, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2012-9571
... transonic compressor rotor CFD validation tip clearance tip leakage vortex The main objective of this work is the validation of Computational Fluid Dynamics (CFD) code used for analysis of transonic axial compressors. NASA Rotor 35 is used here as test case for validation. In this work...
Proceedings Papers
Effect of Thermal Conductivity on Heat Transfer From a Flat Plate With Combined Impingement and Film Cooling
Available to Purchase
Proc. ASME. GTINDIA2012, ASME 2012 Gas Turbine India Conference, 533-542, December 1, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2012-9669
... Conjugate heat transfer TLC measurement CFD 1 Copyright © 2012 by ASME EFFECT OF THERMAL CONDUCTIVITY ON HEAT TRANSFER FROM A FLAT PLATE WITH COMBINED IMPINGEMENT AND FILM COOLING Rajesh Kumar Panda B.V.S.S.S. Prasad* ABSTRACT The effect of solid thermal conductivity on conjugate heat transfer from...
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