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1-20 of 417
Keywords: computational fluid dynamics
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2025, 147(1): 011026.
Paper No: GTP-24-1407
Published Online: October 25, 2024
... 25 10 2024 heat transfer turbulence natural convection low-order modeling computational fluid dynamics Accurate prediction of natural convection heat transfer is of significance for investigating a wide range of applications such as gas turbines (during the shutdown...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2025, 147(1): 011004.
Paper No: GTP-24-1341
Published Online: September 6, 2024
...Jonathan T. Lipkowicz; Simon Gövert; Bertram Janus The low dissipation low dispersion (LD2) second-order accurate scheme is effective for scale-resolving simulations in finite volume computational fluid dynamics (CFD) solvers, thanks to its combination of a skew-symmetric split form for convective...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2024, 146(12): 121010.
Paper No: GTP-24-1285
Published Online: September 5, 2024
..., while in space it is achieved through a mathematical function defined in a continuous flame index space. The equation is numerically integrated with a semi-implicit scheme by making use of the backward Euler formula. The strategy has been implemented in a commercial computational fluid dynamics (CFD...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2024, 146(10): 101006.
Paper No: GTP-23-1636
Published Online: April 22, 2024
... has been conducted to investigate the flow evolution in medium- to large-sized engines using laser-based diagnostic methods, computational fluid dynamics (CFD) simulations, and zero-dimensional (0D) based modeling. In the present study, we provide a detailed analysis of the evolution of flow fields...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2024, 146(6): 061002.
Paper No: GTP-23-1390
Published Online: December 26, 2023
...-mail: v.pachidis@cranfield.ac.uk 04 08 2023 27 09 2023 26 12 2023 boundary layer pump tesla pump friction pump computational fluid dynamics Boundary layer pumps have become an increasingly researched area of alternative turbomachinery due to their simplistic design...
Journal Articles
Edoardo Gheller, Vishnu Vardhan Reddy, Satish Koyyalamudi, Steven Chatterton, Daniele Panara, Paolo Pennacchi
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2024, 146(4): 041019.
Paper No: GTP-23-1347
Published Online: December 26, 2023
...) parametric conjugate heat transfer computational fluid dynamic (CFD) model for tilting pad journal bearings (TPJBs) is introduced in this paper to address the temperature aspects of oil-film bearings. The parametric geometry of the model and the automatic mesh update, allow the equilibrium position search...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2024, 146(5): 051007.
Paper No: GTP-23-1555
Published Online: December 8, 2023
...@bath.ac.uk e-mail: ht377@bath.ac.uk e-mail: jas28@bath.ac.uk e-mail: ensgdl@bath.ac.uk 1 Corresponding author. e-mail: m.carnevale@bath.ac.uk 14 09 2023 25 09 2023 08 12 2023 conjugate heat transfer computational fluid dynamics buoyancy-induced flow rotating...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2024, 146(1): 011014.
Paper No: GTP-23-1353
Published Online: October 26, 2023
... analysis. As the rotor exit pressure is recorded at only one location, the average rotor exit pressure around the circumference of the shaft must be different and could be measured accurately using multiple pressure probes at different locations. Fig. 16 Computational fluid dynamics-experimental...
Journal Articles
Sang-Guk Kang, Je Ir Ryu, Austen H. Motily, Prapassorn Numkiatsakul, Tonghun Lee, Waltraud M. Kriven, Kenneth S. Kim, Chol-Bum M. Kweon
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2023, 145(12): 121001.
Paper No: GTP-22-1559
Published Online: October 3, 2023
... conditions representing the dynamic and complex fluid flow inside engines. To meet this requirement, the present study focuses on transient thermomechanical stress analysis using a sequentially coupled computational fluid dynamics (CFD)–finite element analysis (FEA) approach to understand transient...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2023, 145(11): 111012.
Paper No: GTP-23-1307
Published Online: September 29, 2023
... clearance. Other force coefficients for both seals, namely, cross-coupled stiffness (k) and direct damping (C) increase as the inlet liquid volume fraction (LVF) grows. Rationale for the peculiar differences in centering stiffness (K) is missing. Hence, a computational fluid dynamics (CFD) model and its...
Journal Articles
Harsh Darshan Sapra, Randy Hessel, Eri Amezcua, Jacob Stafford, Niranjan Miganakallu, David Rothamer, Kenneth Kim, Chol-Bum M. Kweon, Sage Kokjohn
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2023, 145(9): 091004.
Paper No: GTP-23-1104
Published Online: July 19, 2023
...Harsh Darshan Sapra; Randy Hessel; Eri Amezcua; Jacob Stafford; Niranjan Miganakallu; David Rothamer; Kenneth Kim; Chol-Bum M. Kweon; Sage Kokjohn Computational fluid dynamics (CFD) simulations are performed to study the potential of energy-assisted compression ignition (EACI) strategy for enabling...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2022, 144(11): 111006.
Paper No: GTP-22-1420
Published Online: September 20, 2022
... s = specific t = total ti = total inlet CFD = Computational Fluid Dynamics Acronyms CFD = computational fluid dynamics DoR = degree of reaction TPC = total pressure loss coefficient References [1]
Tesla ,
N.
, 1913 , “
Turbine...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2022, 144(6): 061004.
Paper No: GTP-21-1491
Published Online: March 21, 2022
...Fatih Aktas With developing in computer technology, three-dimensional (3D) computational fluid dynamics (CFD) internal combustion (IC) engine simulations, which generally use reduced chemical kinetic mechanisms and simplified combustion models, can provide more accurate results along with less...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2021, 143(11): 111014.
Paper No: GTP-21-1121
Published Online: October 4, 2021
.... A three-dimensional computational fluid dynamics engine model incorporated with detailed biodiesel combustion kinetics and NO x formation kinetics was validated against measured in-cylinder pressure, temperature, and engine-out nitric oxide emission from diesel engine. This valid model was then employed...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2021, 143(1): 011018.
Paper No: GTP-20-1672
Published Online: January 4, 2021
...Shine Win Naung; Mohammad Rahmati; Hamed Farokhi The high-fidelity computational fluid dynamics (CFD) simulations of a complete wind turbine model usually require significant computational resources. It will require much more resources if the fluid–structure interactions (FSIs) between the blade...
Journal Articles
Andrea C. Zambon, Ashvin Hosangadi, Tim Weathers, Mark Winquist, Jeff Mays, Shinjiro Miyata, Ganesan Subbaraman
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2021, 143(1): 011016.
Paper No: GTP-20-1538
Published Online: January 4, 2021
...@gti.energy 02 09 2020 05 10 2020 04 01 2021 oxy-combustion supercritical CO 2 computational fluid dynamics CFD tabulated chemistry real fluid contaminants NO x SO x The challenge in the design of oxy-combustors for direct-fired supercritical CO 2 (sCO 2 ) cycles...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2019, 141(8): 081004.
Paper No: GTP-18-1167
Published Online: February 15, 2019
... flow fields throughout 100 consecutive cycles. The computational fluid dynamics program CONVERGE [ 14 ] was used for the calculation. The base cell size is set to 1 mm as shown in Fig. 1(a) . In order to reflect the influence of the valve movement and wall boundary layer, the mesh cells near...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2019, 141(4): 041003.
Paper No: GTP-18-1560
Published Online: November 1, 2018
.... In Part II, five cases of geometry with different axial distances between the swirl breaker and the rotor shroud, which covered a range for the stage axial distance of actual high and intermediate pressure (HIP) steam turbines, were investigated using a single-rotor computational fluid dynamics (CFD...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2019, 141(4): 041002.
Paper No: GTP-18-1578
Published Online: November 1, 2018
... aerodynamic loss due to mixing with the mainstream flow. In order to reduce this mixing loss, two distinct ideas for rotor shroud exit cavity geometries were investigated using computational fluid dynamics (CFD) analyses and experimental tests. One idea was an axial fin placed from the shroud downstream...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2019, 141(2): 021014.
Paper No: GTP-16-1189
Published Online: October 4, 2018
... evaluated using a computational fluid dynamics (CFD) approach. Three essential structural parameters of EUP control valve were investigated, and their effects on circulation characteristics were evaluated. The variation trends were observed, and the changes in significant physical parameters and crucial...
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