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Keywords: numerical simulation
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Proceedings Papers

Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT15A002, June 7–11, 2021
Paper No: GT2021-58725
... and to discuss the effects of hole geometric variables on both pressure losses Keywords: Multi-objective optimization; internal cooling; and heat transfer enhancement. A fully automatic multi-objective semi-attached ribs; numerical simulation. genetic algorithm based on the Non-dominated Sorted Genetic Algorithm...
Proceedings Papers

Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT36A017, June 7–11, 2021
Paper No: GT2021-60126
... optimization; 1. INTRODUCTION Injection source term; Numerical simulation In order to improve the performance of aero-engines and NOMENCLATURE gas turbines, one of the most effective measures is to increase m massflow rate, [kg/s] P Pressure,[Pa] V02DT36A017-1 Copyright © 2021 by ASME turbine inlet temperature...
Proceedings Papers

Proc. ASME. GT2021, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A042, June 7–11, 2021
Paper No: GT2021-59164
..., will first increase to a maximum and then decrease. pre-swirl system pressure ratio rotational Reynolds number flow characteristics temperature reduction numerical simulation Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual...
Proceedings Papers

Proc. ASME. GT2021, Volume 4: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage; Education; Electric Power, V004T06A009, June 7–11, 2021
Paper No: GT2021-59282
... gas turbine blade profile parameters numerical simulation ontology Abstract Abstract During the operation of the gas turbine engine, the blades are prone to gas path faults such as fouling, corrosion, and erosion, or even fracture. Current research usually ignores the impact...
Proceedings Papers

Proc. ASME. GT2020, Volume 7B: Heat Transfer, V07BT12A034, September 21–25, 2020
Paper No: GT2020-14836
... University, Beijing, China ABSTRACT Numerical simulations were carried out to study the film cooling effectiveness distributions of different hole arrangements on the suction side of a high pressure turbine blade under rotating condition. The chord length and the height of the blade are 60mm and 80mm...
Proceedings Papers

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT27A029, September 21–25, 2020
Paper No: GT2020-16276
... impact guide vane rotor numerical simulation maximum effective stress STRESS ANALYSIS OF FAN BLADES SUBJECTED TO HAIL IMPACT Xin Sun, Bo Liu, Chang-fu Han Northwestern Polytechnical University, Xi'an, Shaanxi, China ABSTRACT The rapid development of modern aircraft technology is increasingly...
Proceedings Papers

Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T01A017, September 21–25, 2020
Paper No: GT2020-14568
...; the increase of the spacing ratio causes the increase of the secondary mass rate and the decrease of the primary mass rate, but the thrust performance is less affected. Keywords: Ejector Nozzle, Numerical Simulation, Flow Mechanism, Supersonic Flow. NOMENCLATURE D inlet diameter of primary nozzle Dp throat...
Proceedings Papers

Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A037, September 21–25, 2020
Paper No: GT2020-14920
... of the circumferential angle, SGP structure and suction position on the periodicity is studied by numerical simulation. An optimal cascade scheme is selected for experimental research. The results show that a larger circumferential angle can weaken the effect of low-energy fluid near the SGP on the middle passages...
Proceedings Papers

Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A065, September 21–25, 2020
Paper No: GT2020-16019
... Collaborative Innovation Center of Advanced Aero-Engine, Beihang University Beijing, 100191, China * Corresponding author: liuyangwei@126.com ABSTRACT Numerical simulations are carried out to investigate the effect of the sloped trench casing treatment on the performance and stability of a compressor cascade...
Proceedings Papers

Proc. ASME. GT2020, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A065, September 21–25, 2020
Paper No: GT2020-16257
... core. The initial fragmentation mechanism of the air blast atomization is applied as the global variables of the stochastic process. Using the above stochastic immersed model, combined with the Large Eddy Simulation method, the numerical simulation of the downstream flow field of a coaxial jet air...
Proceedings Papers

Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T31A008, September 21–25, 2020
Paper No: GT2020-14785
... approach is presented, reducing the simulation time by a factor of 20. transient simulation compact heat exchanger sCO 2 supercritical carbon dioxide numerical simulation RECUPERATOR TRANSIENT SIMULATION FOR SUPERCRITICAL CARBON DIOXIDE CYCLE IN CSP APPLICATIONS Dhinesh Thanganadar1...
Proceedings Papers

Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A016, September 21–25, 2020
Paper No: GT2020-14366
... performance. In this study, non-axisymmetric endwall contouring in a linear compressor cascade was generated through the optimization process. Combined with numerical simulation, wind tunnel tests on linear cascades with flat and contoured endwall were performed with various measurement techniques...
Proceedings Papers

Proc. ASME. GT2019, Volume 2A: Turbomachinery, V02AT45A025, June 17–21, 2019
Paper No: GT2019-91602
...Numerical Simulation of Surge in a Centrifugal Compressor with Different Operating Condition Using the Plenum Model Cheng Jia1, Guoliang Qin1, Xuefei Chen1, Yi Wang1, 2 1. School of Energy and Power Engineering, Xi'an Jiaotong University, Xi an 710049, P.R.China 2. Shenyang Blower Works Group...
Proceedings Papers

Proc. ASME. GT2019, Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, V008T29A010, June 17–21, 2019
Paper No: GT2019-90419
... at certain frequencies. Keywords: control valve vibration; warm-up stage; engineering data; numerical simulation INTRODUCTION Geometry Description The steam turbine inlet valves containing stop valves and control valves are used to distribute and throttle the fluid flow, and then control the output...
Proceedings Papers

Proc. ASME. GT2019, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Honors and Awards, V001T25A003, June 17–21, 2019
Paper No: GT2019-90784
... by Koch and Smith ( ks = 6.2 Ra ), setting the equivalent sand grain roughness ks in CFX. NASA Stage67 as calculation model. Then analyzed the effects of various surface roughness on compressor performance and internal flow field through the numerical simulation method. The results revealed...
Proceedings Papers

Proc. ASME. GT2013, Volume 2: Aircraft Engine; Coal, Biomass and Alternative Fuels; Cycle Innovations, V002T07A022, June 3–7, 2013
Paper No: GT2013-95199
... ARP 876D paper provides better single-stream jet noise prediction than ones predicted using the ESDU Item 98019. Keywords: Gas turbine, Gas turbine noise, Single-stream jet noise, Turbojet noise, Empirical methods, numerical simulation. NOMENCLATURE jA core nozzle area 2m 0c speed of sound m s CAA...
Proceedings Papers

Proc. ASME. GT2012, Volume 2: Combustion, Fuels and Emissions, Parts A and B, 701-712, June 11–15, 2012
Paper No: GT2012-68997
... that show the usefulness and the potential of the concept. However, it is also shown that additional fine-tuning is still necessary to further reduce the pollutant emissions. FLOX ® HiPerMix ® EZEE ® flameless combustion gas turbine combustion high temperature gas turbine numerical simulation...
Proceedings Papers

Proc. ASME. GT2012, Volume 3: Cycle Innovations; Education; Electric Power; Fans and Blowers; Industrial and Cogeneration, 961-977, June 11–15, 2012
Paper No: GT2012-69133
... numerically simulated. The evaluation of results on various performance parameters such as total pressure ratio, inlet flow capacity and adiabatic efficiency combined with contours of total pressure losses, entropy, Mach No., and temperature including limiting streamlines, shows that the blade tip water...
Proceedings Papers

Proc. ASME. GT2012, Volume 3: Cycle Innovations; Education; Electric Power; Fans and Blowers; Industrial and Cogeneration, 979-992, June 11–15, 2012
Paper No: GT2012-69158
... on the suction surface and endwall, are chosen. The changes of vortexes in the compressor cascade are discussed carefully. In addition, the influences of water injection on temperature, total pressure losses and Mach number are analyzed. Numerical simulations are performed for a highly loaded compressor cascade...
Proceedings Papers

Proc. ASME. GT2011, Volume 7: Turbomachinery, Parts A, B, and C, 799-813, June 6–10, 2011
Paper No: GT2011-46113
... and optimization of the 1.5-stage axial test turbine demonstrates the effectiveness of this technique. A reduction of secondary flows and a corresponding increase of stage efficiency have achieved. Turbine design Viscous controlled vortex design method Numerical simulation 1 Copyright © 2011 by ASME...