Auflistung nach Schlagwort "Computational fluid dynamics"

Auflistung nach Schlagwort "Computational fluid dynamics"

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  • Aerodynamic and aeroelastic effects of design-based geometry variations on a low-pressure compressor 
    Eggers, Torben; Kim, Hye Rim; Bittner, Simon; Friedrichs, Jens; Seume, Joerg R. (Basel : MDPI, 2020)
    In modern aircraft engines, the low-pressure compressor (LPC) is subjected to a flow characterized by strong wakes and secondary flows from the upstream fan. This concerns ultra-high bypass ratio (UHBR) turbofan engines, ...
  • Aerodynamical and Structural Analysis of Operationally Used Turbine Blades 
    Schwerdt, Lukas; Hauptmann, Thomas; Kunin, Artsem; Seume, Jörg R.; Wallaschek, Jörg; Wriggers, Peter; Panning-von Scheidt, Lars; Löhnert, Stefan (Amsterdam : Elsevier BV, 2017)
    This paper presents an integrated methodology for the analysis of operationally-used turbine blades, incorporating aerodynamic and multiple structural simulations. In jet engines, blade rubbing and erosion lead to deviations ...
  • Breaking wave kinematics, local pressures, and forces on a tripod support structure 
    Hildebrandt, Arndt; Schlurmann, Torsten (Reston : American Society of Civil Engineers, 2012)
    This paper presents breaking wave loads on a tripod structure from physical model tests and numerical simulations. The large scale model tests (1:12) are described as well as the validation of the three dimensional numerical ...
  • Carbon dioxide free production of hydrogen 
    Stoppel, L.; Fehling, T.; Geißler, T.; Baake, E.; Wetzel, T. (Bristol : Institute of Physics Publishing, 2017)
    The present report summarizes the theoretical modelling and experimental investigation results of the study on the direct thermal methane cracking. This work is a part of the LIMTECH-Project (Liquid Metal Technologies) ...
  • Design and test of a 10kW ORC supersonic turbine generator 
    Seume, Jörg R.; Peters, M.; Kunte, H. (Bristol : Institute of Physics Publishing, 2017)
    Manufactures are searching for possibilities to increase the efficiency of combustion engines by using the remaining energy of the exhaust gas. One possibility to recover some of this thermal energy is an organic Rankine ...
  • Early assessment of defects and damage in jet engines 
    Adamczuk, Rafael R.; Seume, Jörg R. (Amsterdam : Elsevier, 2013)
    The jet engine maintenance process is complex, expensive and time-consuming. It often requires engine disassembly or boroscopic examinations. In order to accelerate the process and reduce the down time of an engine we ...
  • Experimental validation of a compact mixed-flow compressor for an active high-lift system 
    Kauth, Felix; Maroldt, Niklas; Seume, Jörg R. (Bristol : Institute of Physics Publishing, 2019)
    Compact, electrically-driven compressors are a core component of a novel active high-lift system for future commercial aircraft. A newly-developed aeromechanical optimization process was used to design the compressor stage. ...
  • Intelligent monitoring and recognition of the short-circuiting gas-metal arc welding process 
    Wu, C.S.; Hu, Q.X.; Sun, J.S.; Polte, T.; Rehfeldt, D. (London : SAGE Publications Ltd., 2004)
    MOE Key Lab of Liquid Structure and Heredity of Materials, Institute of Materials Joining, Shangdong University, 73 Jingshi Road, Jinan 250061, People's Republic of China This paper introduces an intelligent system for ...
  • Investigations on scour development around a gravity foundation for offshore wind turbines 
    Wilms, Mayumi; Stahlmann, Arne; Schlurmann, Torsten (Reston : American Society of Civil Engineers, 2012)
    Due to insufficient insights about the scour development around the STRABAG gravity foundation, the Franzius-Institute conducted small- and large-scale physical model tests in wave flumes on a scale of 1:50 and 1:17 in ...
  • Investigations on scour development at tripod foundations for offshore wind turbines: Modeling and application 
    Stahlmann, Arne; Schlurmann, Torsten (Reston : American Society of Civil Engineers, 2012)
    Regarding offshore constructions, there is still a lack in knowledge of scour progression for complex structures like foundations for offshore wind energy converters at present, which is however necessary for its dimensioning. ...
  • Maghemite Nanofluid Based on Natural Ester: Cooling and Insulation Properties Assessment 
    Olmo, C.; Mendez, C.; Ortiz, F.; Delgado, F.; Valiente, R.; Werle, P. (Piscataway, NJ : Institute of Electrical and Electronics Engineers Inc., 2019)
    The objective of this work is to study the effect that the addition of magnetic nanoparticles to a natural ester has on its properties and its cooling capacity. Some samples of ferrofluid (natural ester with maghemite) ...
  • Off-design flow analysis of low-pressure steam turbines 
    Petrovic, M.; Riess, W. (London : SAGE Publications Ltd., 1997)
    In this paper, a method for flow calculation in large steam turbines is presented. The method is based on the through-flow theory and the finite element procedure. It includes some extensions and improvements in the form ...