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Keywords: CFD
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Proceedings Papers

Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T12A002, December 2–3, 2021
Paper No: GTINDIA2021-76004
... turbine engines and Keywords: C3X Turbine Blade; CMSX-4; CFD; FEM; improved performance is attained by increasing turbine inlet Thermal Barrier Coating; Thermo-Mechanical temperature. This lead to the use of advanced material, multi- layered thermal barrier coatings (TBCs) and effective cooling...
Proceedings Papers

Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T12A006, December 2–3, 2021
Paper No: GTINDIA2021-76152
... duct is integral to the engine connections, exhaust transition duct, CFD for connecting to the containment ring. The secondary duct is a transition piece for connecting to the exhaust chimney. As these NOMENCLATURE ducts consume additional pressure and adversely affect the performance of the ATS under...
Proceedings Papers

Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T04A008, December 2–3, 2021
Paper No: GTINDIA2021-76045
... Proceedings of the ASME 2021 Gas Turbine India Conference GTINDIA2021 December 2-3, 2021, Virtual, Online GTINDIA2021-76045 3D CFD APPROACH TO PREDICT THE PERFORMANCE OF A CENTRIFUGAL COMPRESSOR WITH SURGE AND CHOKE LIMITS Abishek Sriram1, Jeff Schlautman2, Mehul Varshney1, Dipak Maiti1, Shyam...
Proceedings Papers

Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T04A002, December 2–3, 2021
Paper No: GTINDIA2021-75881
... of Applied Sciences Bangalore, Karnataka, India ABSTRACT VG Vortex Generator In the present research work, effect of airfoil vortex generator on performance and stability of transonic compressor stage is PS Pressure Surface investigated through CFD simulations. In turbomachines vortex generators are used...
Proceedings Papers

Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T04A003, December 2–3, 2021
Paper No: GTINDIA2021-75882
... compressor stability margin. Casing treatment is one of the CAD Computer Aided Design passive endwall geometry modification technique to control tip CFD Computational Fluid Dynamics leakage flow interaction. In the present investigation effect of NASA National Aeronautics and Space Administration rotor tip...
Proceedings Papers

Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T10A008, December 2–3, 2021
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

Proc. ASME. GTINDIA2019, Volume 1: Compressors, Fans, and Pumps; Turbines; Heat Transfer; Structures and Dynamics, V001T02A023, December 5–6, 2019
Paper No: GTINDIA2019-2663
... and Whitney E 3 engine using commercially available CFD tool ANSYS CFX. The effect of free stream turbulence at 0.5%, 5% and 10% is studied along with the change of incidence angle from −10 to +10 on the annular cascade nozzle flow field. The static entropy contour, vorticity contour and total pressure loss...
Proceedings Papers

Proc. ASME. GTINDIA2019, Volume 1: Compressors, Fans, and Pumps; Turbines; Heat Transfer; Structures and Dynamics, V001T01A002, December 5–6, 2019
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

Proc. ASME. GTINDIA2019, Volume 1: Compressors, Fans, and Pumps; Turbines; Heat Transfer; Structures and Dynamics, V001T01A003, December 5–6, 2019
Paper No: GTINDIA2019-2392
... 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. Keywords: CFD, mathematical model centrifugal compressor, efficiency. NOMENCLATURE G mass flow rate of the working fluid, kg/s Z Number...
Proceedings Papers

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
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

Proc. ASME. GTINDIA2019, Volume 1: Compressors, Fans, and Pumps; Turbines; Heat Transfer; Structures and Dynamics, V001T03A010, December 5–6, 2019
Paper No: GTINDIA2019-2560
.... 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, are done for an air flow range (Reynolds numbers 6000 to 33000) and for a constant heat flux on the tube model surface. Four VGs are fitted...
Proceedings Papers

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
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

Proc. ASME. GTINDIA2019, Volume 1: Compressors, Fans, and Pumps; Turbines; Heat Transfer; Structures and Dynamics, V001T02A006, December 5–6, 2019
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

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
Paper No: GTINDIA2019-2430
.... A computer-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...
Proceedings Papers

Proc. ASME. GTINDIA2013, ASME 2013 Gas Turbine India Conference, V001T03A011, December 5–6, 2013
Paper No: GTINDIA2013-3691
... 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 such as pressure loss and pattern factor. The combustor is fabricated...
Proceedings Papers

Proc. ASME. GTINDIA2013, ASME 2013 Gas Turbine India Conference, V001T01A018, December 5–6, 2013
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

Proc. ASME. GTINDIA2012, ASME 2012 Gas Turbine India Conference, 115-121, December 1, 2012
Paper No: GTINDIA2012-9571
... 1 Copyright © 2012 by ASME CFD CODE VALIDATION & QUALITATIVE STUDY OF EFFECTS OF TIP CLEARANCE VARIATION ON PERFORMANCE OF TRANSONIC AXIAL COMPRESSOR ROTOR Aniket R.Patkar Sardar Patel College of Engineering Mumbai, Maharashtra, India Email: aniketpatkar87@gmail.com Srinivethan Rangasamy Zeus...
Proceedings Papers

Proc. ASME. GTINDIA2012, ASME 2012 Gas Turbine India Conference, 533-542, December 1, 2012
Paper No: GTINDIA2012-9669
.... The Nusselt number on the other hand differs only slightly among different materials. Keywords: Combined impingement and film cooling, Thermal Conductivity, Conjugate heat transfer, TLC measurement, CFD. 1. INTRODUCTION Thermal conductivity of the blade material plays a very significant role on the surface...
Proceedings Papers

Proc. ASME. GTINDIA2012, ASME 2012 Gas Turbine India Conference, 139-148, December 1, 2012
Paper No: GTINDIA2012-9601
... Transonic Compressor, J- Shaped Casing Treatment, Stall Margin, CFD, Gas Turbine. INTRODUCTION Gas Turbine (GT) is a power plant, which produces large amount of energy for a given size and weight. Due to recent developments in the energy requirements, GT have shown significant domination in power production...
Proceedings Papers

Proc. ASME. GTINDIA2012, ASME 2012 Gas Turbine India Conference, 149-157, December 1, 2012
Paper No: GTINDIA2012-9615
... in the Ejector II, indicating the malfunction mode of the system for the given design parameters. CFD High Altitude Test (HAT) Facility Ejector Entrainment Ratio (ER) Mach number CFD SIMULATION OF STEAM EJECTOR SYSTEM IN HIGH ALTITUDE TEST (HAT) FACILITY Pavani Sreekireddy, Dr. T. Kishen Kumar Reddy...