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Keywords: Modeling
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Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2021, 143(7): 071028.
Paper No: GTP-20-1521
Published Online: March 31, 2021
... deviation during off-design conditions. Conversely in the vaneless diffuser, the conservation of the angular momentum of the flow stream has been imposed in the tangential direction and then combined with the solution of the momentum equation in the radial direction. The model has been validated against...
Journal Articles
Article Type: Review Articles
J. Eng. Gas Turbines Power. December 2020, 142(12): 120801.
Paper No: GTP-20-1184
Published Online: December 2, 2020
...Luca Menegozzo; Ernesto Benini The present paper focuses on the numerical modeling approaches adopted in boundary layer ingestion (BLI) studies. Three driving aircraft concepts have been identified, namely propulsive fuselage concept (PFC), rear engines concept (REC), and distributed fans concept...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2019, 141(8): 081004.
Paper No: GTP-18-1167
Published Online: February 15, 2019
... – 127 . 10.1017/S0022112009992059 [7] Schmid , P. J. , 2010 , “ Dynamic Mode Decomposition of Numerical and Experimental Data ,” J. Fluid Mech. , 656 , pp. 5 – 28 . 10.1017/S0022112010001217 [8] Mezić , I. , 2005 , “ Spectral Properties of Dynamical Systems, Model Reduction and...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2019, 141(4): 042801.
Paper No: GTP-18-1219
Published Online: December 4, 2018
... LP-EGR models are designed with various combustion parameters (CP), which are derived from (1) heat release analysis, (2) central moment calculation, and (3) principal component analysis (PCA). The heat release provides valuable insights into the combustion process, such as flame speed and energy...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 011007.
Paper No: GTP-18-1287
Published Online: September 14, 2018
.... (1) a pressure-node impedance, representing the large volume of the plenum, imposing a pressure-release condition; (2) an L  −  ζ model [ 32 ], representing the burner; (3) a flame transfer function; (4) a duct, accounting for the acoustic propagation from the flame to the transition...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 011009.
Paper No: GTP-18-1293
Published Online: September 14, 2018
... labyrinth seal will be presented. The results in terms of rotordynamic coefficients and leakage will be discussed as well as the critical assessment of the experimental measurements. Eventually, the experimental data are compared to the numerical results obtained with the new bulk-flow model (BFM...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 012601.
Paper No: GTP-18-1170
Published Online: August 31, 2018
... , C. , and Tummescheit , H. , 2006 , “ The Modelica Fluid and Media Library for Modeling of Incompressible and Compressible Thermo-Fluid Pipe Networks ,” International Modelica Conference , Vienna, Austria, Sept. 4–5, pp. 631 – 640 . https://modelica.org/events/modelica2006/Proceedings...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2019, 141(1): 012501.
Paper No: GTP-18-1225
Published Online: August 31, 2018
... fluid entrained into the rotor boundary layer. A theoretical model has been developed to predict the relationship between the sealing effectiveness on the stator and the adiabatic effectiveness on the rotor, including the effects of both ingress and frictional heating. The model involves the use of a...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2018, 140(12): 122604.
Paper No: GTP-18-1197
Published Online: August 30, 2018
... the properties near the critical point, the computational fluid dynamics (CFD) flow solver is coupled with a look-up table of properties of fluid. Behavior of real gas close to its critical point and the effect of the accuracy of the real gas model on the compressor performance are studied in this...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2018, 140(12): 121506.
Paper No: GTP-18-1091
Published Online: August 20, 2018
...Huangwei Zhang Large eddy simulation (LES) with three-dimensional conditional moment closure (CMC) subgrid model for combustion is applied to simulate a swirl-stabilized nonpremixed methane flame with localized extinction, with special focus on the effects of heat loss to the burner surface. The...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2018, 140(12): 121502.
Paper No: GTP-18-1142
Published Online: August 6, 2018
... conditions. An analytical model is developed based on the linearized G-equation, to further understand the flame interactions through the velocity perturbations in the burnt side. Good agreements were found between the prediction and the experiment results...
Topics: Flames
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2018, 140(12): 122501.
Paper No: GTP-18-1005
Published Online: August 6, 2018
... velocity is modeled and calculated. Then the seal dynamic model and response of inlet valve are presented followed by the machine thermodynamic model. A case study has also been presented to show the responses of seals and inlet valve during the machine operation...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2018, 140(12): 122801.
Paper No: GTP-18-1084
Published Online: August 6, 2018
.... , Nueesch , T. , Naegele , C. , Lassus , P. , and Onder , C. , 2016 , “ Modeling and Control of a Hybrid Vehicle With an Electrically Assisted Turbocharger ,” IEEE Trans. Veh. Tech. , 65 ( 6 ), pp. 4344 – 4358 . 10.1109/TVT.2016.2533585 [11] Michon , M. , Calverley , S. D...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2018, 140(11): 111701.
Paper No: GTP-18-1063
Published Online: July 9, 2018
... virtual control system of IGHAT cycle is established on the Ovation distribution control platform. The model-in-loop control platform is eventually set up based on the interaction between the simulation model and the control system. A case study is implemented on this model-in-loop control platform to...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2018, 140(11): 112807.
Paper No: GTP-18-1205
Published Online: July 9, 2018
...). A three-dimensional computational fluid dynamics (3D CFD) model was developed using CONVERGE CFD coupled with detailed chemical kinetics to gain a better understanding of the underlying phenomena of the water injection event in a homogeneous, low temperature combustion (LTC) strategy. The CFD model...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2018, 140(10): 102503.
Paper No: GTP-17-1346
Published Online: July 9, 2018
.... A discussion on the possible sources of this SSV including self-excited instability and pad flutter forced vibration is provided with supporting evidence from thermoelastohydrodynamic (TEHD) bearing modeling results. Fig. 1 Test rig set-up [ 8 ] Fig. 2 Test bearing drawing [ 8...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2018, 140(11): 112602.
Paper No: GTP-17-1427
Published Online: July 5, 2018
...Maxime Huet The noise generated by the passage of acoustic and entropy perturbations through subsonic and choked nozzle flows is investigated numerically using an energetic approach. Low-order models are used to reproduce the experimental results of the hot acoustic test rig (HAT) of Deutsches...
Journal Articles
Article Type: Technical Briefs
J. Eng. Gas Turbines Power. October 2018, 140(10): 104501.
Paper No: GTP-17-1495
Published Online: June 25, 2018
... experimental data. Skeletal chemical kinetic mechanism with the eddy dissipation concept (EDC) model is used. Flow bifurcation in the radial (poloidal) plane due to the interaction between counter-rotating vortices creates one dominating poloidal recirculation zone (PRZ) and one weaker toroidal recirculation...
Includes: Supplementary data
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2018, 140(10): 101502.
Paper No: GTP-17-1204
Published Online: June 25, 2018
... of chemical time scales. In this paper, a combustion model that includes the prediction of the carbon monoxide and nitric oxide emissions is tested. Large eddy simulations (LES) are performed using a compressible code ( O pen FOAM ). A modified flamelet generated manifolds (FGM) approach is applied...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2018, 140(10): 102804.
Paper No: GTP-18-1101
Published Online: June 19, 2018
...Sedigheh Tolou; Ravi Teja Vedula; Harold Schock; Guoming Zhu; Yong Sun; Adam Kotrba Homogeneous charge is a preferred operation mode of gasoline direct-injection (GDI) engines. However, a limited amount of work exists in the literature for combustion models of this mode of engine operation. Current...