... concerning the loss coefficient measured in a large-scale cascade for a large variation of the Reynolds number, the reduced frequency, and the flow coefficient. Linear models have been educated accounting for the Occam’s razor parsimony criterion, condensing the effects due to the parameter variation in few...

... Abstract The majority of lifetime models associates the failure of thermal barrier coatings to an oxidation of the bond coat. A thickening of the thermally grown oxide leads to a conversion of stresses at the undulated ceramic-metal interface, supporting the propagation of existing micro cracks...

... Abstract Demand is constantly increasing for high-fidelity models that execute quickly. To increase the fidelity of aircraft engine simulations, low-fidelity thermodynamic models are often interfaced with high-fidelity models used for capturing 2D and 3D effects. Unfortunately, interfaces...

... Abstract Nonlinear gas path analysis (NGPA) is an important method for gas path fault diagnosis, and it is also the main technology for component performance estimation of gas turbine engines. However, the solution speed of the nonlinear gas path model is difficult to meet the time requirements...

... Abstract An improved primary atomization model for the jet-in-crossflow (JICF) atomization has been suggested and incorporated into the solver SprayFoam of OpenFOAM. The assumption of replacing jets with blobs, the maximum growth rate of the Kelvin-Helmholtz (K-H) wave, and its corresponding...

... milling blisk CAM digital twin process design optimisation manufacturing simulation modeling turbomachinery Abstract The manufacturing process of blade-integrated disks (blisks) represents one of the most challenging tasks in turbomachinery manufacturing. The requirement...

... for heating and cooling, hospitals using CHP systems are more energy-efficient, leading also to a reduction of the global emissions connected to the hospital activity. The present study involves the development of a numerical model of the gas turbine-based cogeneration system installed in a hospital facility...

... ratios, whereas with increasing ammonia content the limit is decreasing. Furthermore, a model for the lean blowout limits were derived, which is able to predict the acquired experimental data with high accuracy. lean blowout hydrogen ammonia modeling Proceedings of ASME Turbo Expo 2021...

... SUBSCRIPTS A technique of representing and approximating of gas GTE gas turbine engine turbine engine (GTE) compressor maps is given. The aims of this study are to improve the efficiency of processing GTE test results ANN artificial neural network and the reliability of GTE mathematical model. CFD...

... Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-60093 REACTION MODEL DEVELOPMENT OF SELECTED AROMATICS AS RELEVANT MOLECULES OF A KEROSENE SURROGATE THE IMPORTANCE OF M-XYLENE WITHIN THE COMBUSTION OF 1,3,5...

... digital environment exploration facilitated variation manufacturing variations modeling turbomachinery Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-59562 KNOWLEDGE-BASED ADAPTATION OF PRODUCT AND PROCESS...

...NUMERICAL MODELING AND DESIGN CHALLENGES OF BOUNDARY LAYER INGESTING FANS Adam Sieradzki1, Tomasz Kwiatkowski1, Mark Turner2, Borys ukasik1 1 ukasiewicz Research Network Institute of Aviation, Warsaw, Poland 2University of Cincinnati, Cincinnati, Ohio ABSTRACT Studies show that Boundary Layer...

...Abstract Abstract For the reliable operation of modern gas turbines, Thermal Barrier Coatings (TBCs) need to withstand a wide range of ambient conditions resulting from impurities in inlet air or fuels. A novel deposition model has been developed that enables the prediction of deposition...

... correlation of total pressure loss coefficient versus circumferential synergy angle could be perceived. Keywords: Turbines; Aerodynamics; Computational fluid dynamics (CFD); Modeling; Internal flow NOMENCLATURE c blade chord length, m DC designed condition Eu Euler number EXP experiment G mass flow rate, kg/s...

... 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 measurements carried out on the test bench of the University of Genoa both in diabatic and adiabatic conditions...

...A COMPREHENSIVE MODELING OF CENTRIFUGAL COMPRESSOR VIBRATIONS FOR EARLY FAULT DETECTION François Libeyre, Francis Bainier, Pascal Alas GRTgaz, Paris, France ABSTRACT In the last decade, the development of machine connectivity has made possible early fault detection with remote analysis of operating...

... a highlight of a recently developed sensor technology. All efforts serve the purpose to re-emphasize the importance of monitoring rotor torsional response to the industry. measurement torque response dynamic static modeling stress ROTOR TORSIONAL RESPONSE: A CRITICAL PARAMETER TO MEASURE...

..., Gasification, Modeling, IGCC Introduction Making substitute natural gas (SNG) from coal gets popular with the increasing price of natural gas and the increasing attention to CO2 mitigation. Typically, SNG is produced in a traditional chemical process-the SNG single production system [1-3], as shown in Figure 1...

... Modeling Compressor Radial Equilibrium Equation Lean Angle Proceedings of ASME Turbo Expo 2008: Power for Land, Sea and Air GT2008 June 9-13, 2008, Berlin, Germany GT2008-50259 1 Copyright © 2008 by ASME Pericles Pilidis Cranfield University, School of Engineering Department of Power and Propulsion...

... conditions, a two dimensional (2-D) Streamline Curvature (SLC) simulation method coupled with an extended parallel compressor model is used. SLC addresses the impact of the radial flow distortion, whereas the extended parallel compressor model examines the impact of circumferential flow distortion on engine...