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Keywords: CFD
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Proceedings Papers

Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A038, June 13–17, 2022
Paper No: GT2022-83100
... CFD flow simulations were performed in order to evaluate all the specified configurations aiming to find improvements on compressor stall margin. Investigations on the compressor flow characteristics were realized and the stall margin variations were determined. The numerical simulations were...
Proceedings Papers

Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A026, June 13–17, 2022
Paper No: GT2022-82258
... compressors turbulence modeling CFD axial casing grooves Reynolds stresses Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-82258 EVOLUTION OF TURBULENCE AND ITS MODIFICATION BY AXIAL CASING GROOVES...
Proceedings Papers

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT35A016, June 13–17, 2022
Paper No: GT2022-83879
.... velocity profile Tesla turbine semi-analytical method CFD Buckingham-Π theorem Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-83879 IMPROVEMENT OF THE SEMI-ANALYTICAL MODEL OF A TESLA DISC TURBINE...
Proceedings Papers

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT35A002, June 13–17, 2022
Paper No: GT2022-78684
.... In order to acquire the desired understanding, experimental data is presented to validate the Computational Fluid Dynamics (CFD) model and a detailed numerical investigation is presented to explain the changes in the flow field within the radially reduced designs. The study focuses on low flow rate...
Proceedings Papers

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT35A012, June 13–17, 2022
Paper No: GT2022-82426
... centrifugal compressor volute CFD numerical analysis operating points reattachment modification Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-82426 A NUMERICAL INVESTIGATION ON THE INFLUENCE OF REYNOLDS...
Proceedings Papers

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A015, June 13–17, 2022
Paper No: GT2022-81908
... shown better performance with one admitted arc. A full three-dimensional analysis of such a turbine model using CFD techniques is rather challenging. Due to the special character of the supersonic flow and the interaction of possible shocks with boundary layer flow, a fine grid is required...
Proceedings Papers

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT35A014, June 13–17, 2022
Paper No: GT2022-83042
... to the smooth wall case in terms of location and form. An influence of wall roughness on a possible shift of the best efficiency point was not observed. wall roughness equivalent sand-grain roughness centrifugal compressor volute CFD numerical analysis operating points reattachment modification...
Proceedings Papers

Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A012, June 13–17, 2022
Paper No: GT2022-81059
... Abstract The paper presents CFD simulations about the effects of tip clearance and rotor cavities on the performance of a 1.5-stage high-work turbine. The experimental test case to which the simulation results are compared is the 1.5-stage unshrouded high-work turbine investigated by Behr et al...
Proceedings Papers

Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A047, June 13–17, 2022
Paper No: GT2022-84165
... Abstract Cavitation is a common problem that occurs in pumps which reduces its useful life and bring increased operating costs to the user. A study of cavitation erosion on a two-stage centrifugal pump has been carried out using Computational Fluid Dynamics (CFD). Most cavitation studies...
Proceedings Papers

Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A014, June 13–17, 2022
Paper No: GT2022-81218
... be present. In recent years, additive manufacturing (AM) has further expanded the design space, but can give rise to large-scale roughness features, whose sizes are comparable to the channel height. The range of roughness length scales in these systems makes CFD of the resolved rough surfaces impractical...
Proceedings Papers

Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A023, June 13–17, 2022
Paper No: GT2022-82080
... of normalized total pressure is well captured by the R-H-QCR model, indicating that the R-H-QCR model improves flow field prediction. compressor multi-stage stability efficiency CFD turbulence model Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June...
Proceedings Papers

Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A011, June 13–17, 2022
Paper No: GT2022-81921
.... Such aerodynamic instabilities are investigated using CFD simulations by performing 3D, Unsteady Reynolds Averaged Navier Stokes (URANS) of the low pressure, last turbine stage coupled with an axial exhaust hood, with structural struts. The full annulus mesh of both the last stage and diffuser is considered...
Proceedings Papers

Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A010, June 13–17, 2022
Paper No: GT2022-81891
... −7 m 3 /s) was injected on the channel plate. We measured the thickness of the liquid film simultaneously by using ORP and high-speed visualization. Further, we also estimated the thickness of the liquid-film flow by CFD using ANSYS Fluent. We will discuss their qualitative agreement and tendency...
Proceedings Papers

Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A014, June 13–17, 2022
Paper No: GT2022-82896
... with sufficient accuracy the radial force on the packing ring. steam turbine packing ring CFD forces Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-82896 CFD ANALYSIS OF THE FORCES ON A STEAM TURBINE...
Proceedings Papers

Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T03A019, June 13–17, 2022
Paper No: GT2022-83166
... CFD Lagrangian-Eulerian turbulent liquid fuel crossflow breakup models atomization gas turbine Abstract For lean combustion technology, sufficient mixing between fuel and air helps to move away from stoichiometric combustion, the flame temperature of which enormously promotes...
Proceedings Papers

Proc. ASME. GT2022, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A024, June 13–17, 2022
Paper No: GT2022-80762
... through multiple hexagonal swirlers of vane angle 45° was developed. The flow dynamics and combustion characteristics of three different fuel injection LDI configurations were compared using a three-dimensional (3D) computational fluid dynamic (CFD) study. Realizable k-ε turbulence model with a scalable...
Proceedings Papers

Proc. ASME. GT2022, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A011, June 13–17, 2022
Paper No: GT2022-82184
... structure changes when the emulsion technology is utilized at different water to fuel ratios. liquid fuel emulsion gas turbine CFD Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-82184 COMPUTATIONAL...
Proceedings Papers

Proc. ASME. GT2022, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A042, June 13–17, 2022
Paper No: GT2022-83025
.... gas turbine combustion micromix hydrogen fuel flexibility OH chemiluminescence CFD RANS LES Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-83025 NOVEL FUEL INJECTOR GEOMETRY FOR ENHANCING...
Proceedings Papers

Proc. ASME. GT2022, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A028, June 13–17, 2022
Paper No: GT2022-82622
... by varying conditions. Computational Fluid Dynamics (CFD) simulations are playing a key role in the design of gas turbine combustors and an accurate NOx model will be an important tool for the designers. The new stringent regulations will require new computational approaches over the traditional methods so...
Proceedings Papers

Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT13A012, June 13–17, 2022
Paper No: GT2022-82391
... and turbine blades made entirely by AM. Despite that, the effects of the increased surface roughness on friction and heat transfer are not fully understood yet and this hinders the design process demanding further characterization by means of experimental tests. Also the exploitation of CFD simulations...