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Keywords: CFD
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Proceedings Papers

Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT39A010, June 7–11, 2021
Paper No: GT2021-59869
... further Rotating Stall, CFD, DES technological improvements. NOMENCLATURE Researchers have reported the behavior of rotating stalls B diffuser passage height [m] generated in vaneless space. In an early report, Senoo et al. D diameter [m] investigated the boundary separation pattern of a vaneless G mass...
Proceedings Papers

Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT39A014, June 7–11, 2021
Paper No: GT2021-60276
... unsteady modalities is pervasive and detailed analysis. near the top of the priority list. Regarding aerodynamics and CFD simulation, a topology of unsteady mechanisms which Keywords: CFD, Unsteady, Heat transfer, harmonic influence the blade/vane heat transfer could begin with the balance pulsating nature...
Proceedings Papers

Proc. ASME. GT2021, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Wind Energy; Scholar Lecture, V001T10A002, June 7–11, 2021
Paper No: GT2021-58728
... conditions were thoroughly investigated. Computational Fluid Dynamics (CFD) based simulations were employed to describe and evaluate the differently configured CRAC turbofan blower flow conditions (i.e., normal, angled, and sheared CRAC flow patterns) as well as their impacts upon the air cooling performance...
Proceedings Papers

Proc. ASME. GT2021, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Wind Energy; Scholar Lecture, V001T10A004, June 7–11, 2021
Paper No: GT2021-58967
... machines that are expensive to manufacture and transport. With the increasingly lower CPU cost of fluid modeling, designers can now turn to CFD optimization to produce the necessary machine performance and flow conditions while respecting manufacturing constraints. The objective of this study...
Proceedings Papers

Proc. ASME. GT2021, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Wind Energy; Scholar Lecture, V001T10A011, June 7–11, 2021
Paper No: GT2021-59832
... determine a progressive reduction in wall thickness of specific fan zones, which may m mass finally result in the formation of holes. This, in turn, makes the internal flow field changing, affecting contaminant trajectories n velocity exponent and impact characteristics. CFD predictions show that erosion...
Proceedings Papers

Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A044, June 7–11, 2021
Paper No: GT2021-60314
... grooves, compressor stall, CFD orientations relative to the groove. Interactions of the tip flow with the ACGs modifies the magnitude and spatial distribution NOMENCLATURE rotor blade tip chord of the highly anisotropic and inhomogeneous turbulence in the c= passage. Owing to TLV entrainment...
Proceedings Papers

Proc. ASME. GT2021, Volume 2B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing, V02BT32A013, June 7–11, 2021
Paper No: GT2021-59897
... of a single blade passage with periodic boundary conditions. The Reynolds-Averaged Navier-Stokes equations with the k-ω shear stress transport (SST) turbulence equations were solved in a commercial CFD code Ansys CFX 18.1. The flow was considered incompressible. The present numerical study was compared...
Proceedings Papers

Proc. ASME. GT2021, Volume 2B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing, V02BT32A008, June 7–11, 2021
Paper No: GT2021-59224
...Abstract Abstract This paper presents experimental and numerical CFD studies of the aerodynamics of a turbine rear structure (TRS). The TRS test geometry is an engine-realistic state-of-the-art design with a polygonal outer case, recessed engine mount bumps, and three different vane types...
Proceedings Papers

Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A036, June 7–11, 2021
Paper No: GT2021-59867
... then was confirmed via RANS CFD simulations of the flow field inside the inlet suction housing and pump impeller. Same CFD methodology was used to evaluate multiple engineering solutions to reduce the strength of the inflow pre-swirl by modifying the inlet suction housing geometry. The obtained RANS CFD solutions...
Proceedings Papers

Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT35A004, June 7–11, 2021
Paper No: GT2021-58739
... duct was used. The steady RF blade passing frequency / Hz computational fluid dynamics (CFD) showed that the inlet duct BPF computational fluid dynamics has little effect on the aerodynamic performance of the fan. The CFD proper orthogonal decomposition results of the full passage unsteady calculation...
Proceedings Papers

Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A022, June 7–11, 2021
Paper No: GT2021-59414
... applied in Computational Fluid Dynamics imposed at different surfaces are explained in the work. The (CFD) techniques in the turbomachinery area, in this case, in an boundary conditions settings follow the same rule used in the test facility and needs some attention during the simulations to vary axial...
Proceedings Papers

Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A032, June 7–11, 2021
Paper No: GT2021-59616
... the maximum torque by 20% compared to the baseline nozzle. aerodynamic optimization nozzle vane VGT CFD radial turbine turbocharger Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-59616 AERODYNAMIC DESIGN...
Proceedings Papers

Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A016, June 7–11, 2021
Paper No: GT2021-59645
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-59645 TWO PHASE FLOW CFD MODELING OF A STEAM TURBINE LOW PRESSURE SECTION: COMPARISON WITH DATA AND CORRELATIONS Nicola Maceli1, Lorenzo Arcangeli1, Andrea Arnone2...
Proceedings Papers

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT23A008, June 7–11, 2021
Paper No: GT2021-59040
... Finspång, Sweden ABSTRACT CFD Computational Fluid Dynamics Decarbonization and sustainability efforts challenge gas BC Boundary Condition OD Outer Diameter turbine engineers to come up with creative strategies for ID Inner Diameter reduction of emissions and efficiency increase over the whole FFT Fast...
Proceedings Papers

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT24A009, June 7–11, 2021
Paper No: GT2021-58893
...- increasing power output and improving performance by accuracy, high-definition pressure distribution data was decreasing leakage flow. In order to understand detailed obtained. Pressure data measured by PSP were compared with characteristics of this destabilization fluid force, so many CFD pressure sensor...
Proceedings Papers

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT23A002, June 7–11, 2021
Paper No: GT2021-58779
... located at the Zucrow Laboratory at Keywords: Compressor, Forced Response, Multi-Row, Mistuning, Purdue University. The current paper first addresses the steady Stator Hub Cavities, CFD aerodynamics of a multi-row compressor with hub cavities and talks in detail about the effect of cavities...
Proceedings Papers

Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT28A004, June 7–11, 2021
Paper No: GT2021-59725
... Palazzolo1 1Department of Mechanical Engineering, Texas A&M University, College Station, TX, USA 2Rotating Machinery Services Inc., Bethlehem, Pennsylvania, USA ABSTRACT method is evaluated by comparison with the experimental data. Accurate characterization of compressor rotordynamic CFD results provide...
Proceedings Papers

Proc. ASME. GT2021, Volume 5A: Heat Transfer — Combustors; Film Cooling, V05AT11A005, June 7–11, 2021
Paper No: GT2021-59687
... adjacent to a cooling hole. The temperature profile is compared to a CFD-CHT model and thermocouple measurements for the calibration of cooling pre-design methods. temperature CFD thermocouples gas turbine combustor cooling sensors Proceedings of ASME Turbo Expo 2021 Turbomachinery...
Proceedings Papers

Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT13A010, June 7–11, 2021
Paper No: GT2021-59603
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-59603 CALIBRATION OF A CFD METHODOLOGY FOR THE SIMULATION OF ROUGHNESS EFFECTS ON FRICTION AND HEAT TRANSFERIN ADDITIVE MANUFACTURED COMPONENTS Lorenzo Mazzei...
Proceedings Papers

Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT13A012, June 7–11, 2021
Paper No: GT2021-59658
... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-59658 ASSESSMENT OF CFD MODELS FOR MULTIPHASE HEAT TRANSFER IN DIFFERENT BOILING REGIMES Cosimo Bianchini1, Riccardo Da Soghe1, Lorenzo Mazzei1, Giuseppe Caggiano2...