...-mail:  thomas.bergs@ipt.fraunhofer.de 11 07 2022 27 07 2022 21 09 2022 milling blisk CAM digital twin process design optimization manufacturing simulation modeling turbomachinery In the past, the traditional chain of product (development) and process design (manufacturing...

... is based on a conventional twin-entry nozzleless turbine, has both a fixed nozzle entry and nozzleless entry simultaneously, and the fixed nozzle entry and the nozzleless entry have different rotor incidence angles, stratified flow is formed in the rotor inlet. The numerical simulation results show...

...–19 ], Fast and Palme [ 20 ], Fast [ 21 ], Spina and Venturini [ 22 ], Ogaji et al. [ 23 ], and Arriagada et al. [ 24 ]. The results of these studies have indicated that ANN can be very useful for the real-time simulation of gas turbines, specifically when there is not enough information about...

...Sungjin Park; Dohoy Jung In this study, numerical simulations of the vehicle cooling system and the vehicle powertrain system of a virtual heavy duty tracked series hybrid electric vehicle (SHEV) is developed to investigate the thermal responses and power consumptions of the cooling system...

... simulation of a turbine thermodynamic cycle, with emphasis on the hot gas path components. The approach used allows efficient handling of turbine components and variable constraints due to fuel changes. Examples are presented for a turbine with four stages, in which the vanes and blades are cooled in an open...

...Nirendra N. Mustafi; Robert R. Raine Investigations on alternative fuels for internal combustion engines are regarded as one of the major research areas for the age. Engine simulation tools can play an important role in such investigations without performing the experimental works. It usually saves...

... as an example. Finally, the paper discusses the performance comparison of a two-dimensional, streamline curvature compressor model against experimental data before and after the adaptation of that particular loss model. This analysis proves the potential of the simulation strategy presented in this paper...

... with an arbitrary computational step size h . chemical reactions combustion simulation air hydrogen In developing efficient reduced chemical mechanisms for combustion simulations, it is often necessary to compute the Jacobian matrix of the system of governing ordinary differential equations...

.... The analyzed system is based on data for the ABB GTX100.gas turbine in intercooled mode. Part I of this two-part paper presents the results based on data for the aeroderovative Rolls Royce Trent. Simulation results include electric efficiency and other process data as function of degree of part flow...

... been obtained through the use of an appropriate modular code named “HS-SOFC” developed at the University of Genoa and described in detail in this paper. The results of the simulation are presented and discussed with particular regards to: choice of the hybrid system (HS) design point data, HS design...

...J. H. Kim, Senior Researcher,; T. W. Song, Graduate Student,; T. S. Kim, Assistant Professor,; S. T. Ro, Fellow ASME, Professor, A simulation program for transient analysis of the startup procedure of heavy duty gas turbines for power generation has been constructed. Unsteady one-dimensional...

.... Traditionally these subsystems have been designed, analyzed, and tested as isolated systems. The interaction between the subsystems is modeled primarily through evaluating inlet distortion in an inlet test and simulating this distortion in engine tests via screens or similar devices. In the current paper...

... heater. Data from physical or empirical simulators of plant components were used to train such a NN model. Results obtained using a conventional computing technique are compared with those of the direct method based on a NN approach. The NN simulator was able to perform calculations in a really short...

... to achieve values comparable to those obtained with naturally aspirated spark-ignited engines. This paper presents an analysis of natural gas HCCI combustion using a detailed chemical kinetics code adapted to simulate engine conditions. Two main issues are analyzed: the effect of natural gas...

...Z. S. Filipi; D. N. Assanis A non-linear, transient, single-cylinder diesel engine simulation has been developed for predictions of instantaneous engine speed and torque. The foundation of our model is a physically based, thermodynamic, steady-state diesel engine simulation (Assanis, D. N...

...Pascal Chesse; Jean-Franc¸ois Hetet; Xavier Tauzia; Philippe Roy; Bahadir Inozu This paper presents the SELENDIA code designed for the simulation of marine diesel engines. Various measured and simulated results are compared for the performance of a sequentially turbocharged marine diesel engine...

...D. N. Assanis; R. B. Poola; R. Sekar; G. R. Cataldi A thermodynamic simulation is used to study the effects of oxygen-enriched intake air on the performance and nitrogen oxide (NO) emissions of a locomotive diesel engine. The parasitic power of the air separation membrane required to supply...

..., internal energy, and specific volume. 9 Steps 4–6 are repeated for every six degrees of rotation until the thermodynamic state of the final compression process has been calculated. 4.5.2 Model Simulation   After the initialization process is complete, the thermodynamic state of each pocket...

.... A. , and Hedrick , J. K. , 1989 , “ Nonlinear Observers—A State-of-the-Art Survey ,” ASME J. Dyn. Syst., Meas., Control , 111 , pp. 344 – 352 . Sugiyama, N., 1990, “Generalized High Speed Simulation of Gas Turbine Engines,” ASME Paper 90-GT-270. Seldner, K., Mihaloew, J. R., and Blaha, R. J., 1972...

...A. F. Massardo, Mem. ASME; F. Lubelli The aim of this work is to investigate the performance of internal reforming solid oxide fuel cell (IRSOFC) and gas turbine (GT) combined cycles. To study complex systems involving IRSOFC a mathematical model has been developed that simulates the fuel cell...