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Proceedings Papers

Transition Model Extension for Roughness Effects

Dragan Kožulović, Nemo Juchmann, Alexander Führing, Christoph Bode

Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A042, June 13–17, 2022

Paper No: GT2022-83277

DOI: https://doi.org/10.1115/GT2022-83277

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Topics: Surface roughness, Turbulence, Airfoils, Boundary layer turbulence, Boundary layers, Boundary-value problems, Computational fluid dynamics, Computer software, Energy dissipation, Flow (Dynamics)

Proceedings Papers

Development of Turbulent Quantities Inside an Axial Turbine Vane

Stephan Behre, Dragan Kožulović, Christian Hösgen, Peter Jeschke

Proc. ASME. GT2021, Volume 2B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing, V02BT32A014, June 7–11, 2021

Paper No: GT2021-60013

DOI: https://doi.org/10.1115/GT2021-60013

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Topics: Turbines, Turbulence, Stators, Kinetic energy, Wire, Algebra, Anisotropy, Axial flow, Computational fluid dynamics, Engineering simulation

Proceedings Papers

Steady State Modeling of Unsteady Wake Induced Transition Effects in a Multistage Low Pressure Turbine

Alexander Führing, Dragan Kožulović, Christoph Bode, Matthias Franke

Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A012, September 21–25, 2020

Paper No: GT2020-14558

DOI: https://doi.org/10.1115/GT2020-14558

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Topics: Modeling, Pressure, Steady state, Turbines, Wakes, Boundary layers, Computation, Reynolds number, Simulation, Aircraft engines

Proceedings Papers

The Heron Fan: Concept Description and Preliminary Aerothermodynamic Analysis

Finn Schöning, Dragan Kozulovic

Proc. ASME. GT2018, Volume 3: Coal, Biomass, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T06A017, June 11–15, 2018

Paper No: GT2018-76529

DOI: https://doi.org/10.1115/GT2018-76529

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Topics: Air compressors, Blades, Combustion, Combustion chambers, Compression, Compressors, Computer-aided design, Cycles, Engines, Fuels

Journal Articles

Potential of Future Thermoelectric Energy Recuperation for Aviation

Christoph Bode, Jens Friedrichs, Ragnar Somdalen, Jürgen Köhler, Kai-Daniel Büchter, Christoph Falter, Ulrich Kling, Pawel Ziolkowski, Knud Zabrocki, Eckhard Müller, Dragan Kožulović

J. Eng. Gas Turbines Power. October 2017, 139(10): 101201.

Paper No: GTP-17-1049

DOI: https://doi.org/10.1115/1.4036527

Published Online: May 9, 2017

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Topics: Aircraft, Aviation, Engines, Generators, Nozzles, Temperature, Flow (Dynamics), Design, Power density, Heat

Proceedings Papers

Potential of Future Thermoelectric Energy Recuperation for Aviation

Christoph Bode, Jens Friedrichs, Ragnar Somdalen, Jürgen Köhler, Kai-Daniel Büchter, Christoph Falter, Ulrich Kling, Pawel Ziolkowski, Knud Zabrocki, Eckhard Müller, Dragan Kožulović

Proc. ASME. IMECE2016, Volume 1: Advances in Aerospace Technology, V001T03A041, November 11–17, 2016

Paper No: IMECE2016-66650

DOI: https://doi.org/10.1115/IMECE2016-66650

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Topics: Aviation, Turbines, Aircraft, Engines, Flow (Dynamics), Generators, Heat transfer, High pressure (Physics), Nozzles, Pressure

Proceedings Papers

Particle Image Velocimetry Investigations of a Subsonic Compressor Tandem Cascade

Charlotte Hertel, Christoph Bode, Dragan Kožulović, Tim Schneider

Proc. ASME. GT2016, Volume 2A: Turbomachinery, V02AT37A044, June 13–17, 2016

Paper No: GT2016-57726

DOI: https://doi.org/10.1115/GT2016-57726

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Topics: Cascades (Fluid dynamics), Compressors, Particulate matter, Flow (Dynamics), Blades, Pressure measurement, Suction

Proceedings Papers

Analysis of Laminar-Turbulent Transition of a Low-Loss Generic Low Pressure Turbine Distribution

Christian Brück, Christoph Lyko, Dieter Peitsch, Christoph Bode, Jens Friedrichs, Dragan Kožulović, Andreas Fiala, Yavuz Guendogdu

Proc. ASME. GT2015, Volume 2A: Turbomachinery, V02AT38A019, June 15–19, 2015

Paper No: GT2015-42824

DOI: https://doi.org/10.1115/GT2015-42824

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Topics: Pressure, Turbines, Turbulence, Reynolds number, Blades, Engines, Geometry, Reynolds-averaged Navier–Stokes equations, Suction, Turbofans

Proceedings Papers

Improved Turbulence and Transition Prediction for Turbomachinery Flows

Christoph Bode, Thorben Aufderheide, Jens Friedrichs, Dragan Kožulović

Proc. ASME. IMECE2014, Volume 1: Advances in Aerospace Technology, V001T01A067, November 14–20, 2014

Paper No: IMECE2014-36866

DOI: https://doi.org/10.1115/IMECE2014-36866

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Topics: Flow (Dynamics), Turbomachinery, Turbulence, Turbines, Cascades (Fluid dynamics), Cross-flow, Eddies (Fluid dynamics), Guide vanes, Inflow, Pressure

Proceedings Papers

Aerodynamic Optimization of Turboprop Turbine Blades Using a Response Surface Methodology Based Algorithm

Stefano Tosin, Jens Friedrichs, Johann Sperling, Dragan Kožulović

Proc. ASME. FEDSM2014, Volume 1A, Symposia: Advances in Fluids Engineering Education; Turbomachinery Flow Predictions and Optimization; Applications in CFD; Bio-Inspired Fluid Mechanics; Droplet-Surface Interactions; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES, and Hybrid RANS/LES Methods, V01AT02A009, August 3–7, 2014

Paper No: FEDSM2014-21752

DOI: https://doi.org/10.1115/FEDSM2014-21752

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Topics: Algorithms, Optimization, Response surface methodology, Turbine blades, Airfoils, Blades, Computational fluid dynamics, Design, Generators, Pressure

Proceedings Papers

Investigations on Aerodynamic Loading Limits of Subsonic Compressor Tandem Cascades: End Wall Flow

Charlotte Hertel, Christoph Bode, Dragan Kožulović, Tim Schneider

Proc. ASME. GT2014, Volume 2A: Turbomachinery, V02AT37A049, June 16–20, 2014

Paper No: GT2014-26978

DOI: https://doi.org/10.1115/GT2014-26978

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Topics: Compressors, Flow (Dynamics), Cascades (Fluid dynamics), Blades, Topology, Computational fluid dynamics, Computer simulation, Design, Flow visualization, Mach number

Proceedings Papers

The Effects of Turbulence Length Scale on Turbulence and Transition Prediction in Turbomachinery Flows

Christoph Bode, Thorben Aufderheide, Dragan Kožulović, Jens Friedrichs

Proc. ASME. GT2014, Volume 2B: Turbomachinery, V02BT39A042, June 16–20, 2014

Paper No: GT2014-27026

DOI: https://doi.org/10.1115/GT2014-27026

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Topics: Flow (Dynamics), Turbomachinery, Turbulence, Turbines, Cascades (Fluid dynamics), Eddies (Fluid dynamics), Inflow, Viscosity

Proceedings Papers

Investigations on Aerodynamic Loading Limits of Subsonic Compressor Tandem Cascades: Midspan Flow

Charlotte Hertel, Christoph Bode, Dragan Kožulović, Tim Schneider

Proc. ASME. IMECE2013, Volume 1: Advances in Aerodynamics, V001T01A041, November 15–21, 2013

Paper No: IMECE2013-64488

DOI: https://doi.org/10.1115/IMECE2013-64488

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Topics: Compressors, Flow (Dynamics), Cascades (Fluid dynamics), Mach number, Pressure, Computational fluid dynamics, Computer simulation, Design, Diffusion (Physics), Turbulence

Proceedings Papers

Drag Reduction by Boundary Layer Control With Passively Moving Wall

Helge Koch, Dragan Kozulovic

Proc. ASME. FEDSM2013, Volume 1B, Symposia: Fluid Machinery; Fluid Power; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Fundamental Issues and Perspectives in Fluid Mechanics, V01BT15A004, July 7–11, 2013

Paper No: FEDSM2013-16149

DOI: https://doi.org/10.1115/FEDSM2013-16149

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Topics: Boundary layers, Disks, Drag (Fluid dynamics), Drag reduction, Flat plates, Flow (Dynamics), Probes, Rotating disks, Rotation, Shear stress

Proceedings Papers

Flow Characteristics of Axial Compressor Tandem Cascades at Large Off-Design Incidence Angles

Tim Schneider, Dragan Kožulović

Proc. ASME. GT2013, Volume 6A: Turbomachinery, V06AT35A011, June 3–7, 2013

Paper No: GT2013-94708

DOI: https://doi.org/10.1115/GT2013-94708

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Topics: Compressors, Design, Flow (Dynamics), Blades, Cascades (Fluid dynamics), Flow separation, Mach number, Engineering simulation, Pressure, Reynolds-averaged Navier–Stokes equations

Proceedings Papers

Performance and Boundary Layer Development of a High Turning Compressor Cascade at Sub- and Supercritical Flow Conditions

Christoph Bode, Dragan Kožulović, Udo Stark, Heinz Hoheisel

Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 49-61, June 11–15, 2012

Paper No: GT2012-68382

DOI: https://doi.org/10.1115/GT2012-68382

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Topics: Boundary layers, Cascades (Fluid dynamics), Compressors, Flow (Dynamics), Turning, Mach number, Blades, Density, Engineering simulation, Modeling

Journal Articles

Numerical and Experimental Investigations of a Compressor Cascade Flow With Secondary Air Removal

Sascha Pönick, Dragan Kožulović, Rolf Radespiel, Bernd Becker, Volker Gümmer

J. Turbomach. March 2013, 135(2): 021030.

Paper No: TURBO-11-1190

DOI: https://doi.org/10.1115/1.4006570

Published Online: November 8, 2012

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Topics: Blades, Flow (Dynamics), Pressure, Compressors, Design, Vortices, Computational fluid dynamics, Turbulence, Cascades (Fluid dynamics)

Journal Articles

Transition Modeling for Vortex Generating Jets on Low-Pressure Turbine Profiles

Florian Herbst, Dragan Kožulović, Joerg R. Seume

J. Turbomach. January 2013, 135(1): 011038.

Paper No: TURBO-11-1167

DOI: https://doi.org/10.1115/1.4006421

Published Online: October 31, 2012

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Topics: Boundary layers, Jets, Modeling, Pressure, Separation (Technology), Turbines, Turbulence, Vortices, Design, Suction

Journal Articles

An Approach for Inclusion of a Nonlocal Transition Model in a Parallel Unstructured Computational Fluid Dynamics Code

Dragan Kožulović, B. Leigh Lapworth

J. Turbomach. July 2009, 131(3): 031008.

DOI: https://doi.org/10.1115/1.2987238

Published Online: April 8, 2009

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Topics: Boundary layers, Computational fluid dynamics, Mach number, Modeling, Pressure, Reynolds number, Simulation, Turbines, Turbulence, Flat plates

Proceedings Papers

Hybrid-Grid Simulation of Unsteady Wake-Boundary Layer Interaction on a High Lift Low Pressure Turbine Airfoil

Hong Yang, Thomas Roeber, Dragan Kozulovic

Proc. ASME. GT2007, Volume 6: Turbo Expo 2007, Parts A and B, 1805-1815, May 14–17, 2007

Paper No: GT2007-28111

DOI: https://doi.org/10.1115/GT2007-28111

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Topics: Airfoils, Pressure, Simulation, Turbines, Wakes, Blades, Suction, Turbulence, Vortex street, Boundary layers

Journal citation

NARROW

Transition Model Extension for Roughness Effects

Development of Turbulent Quantities Inside an Axial Turbine Vane

Steady State Modeling of Unsteady Wake Induced Transition Effects in a Multistage Low Pressure Turbine

The Heron Fan: Concept Description and Preliminary Aerothermodynamic Analysis

Potential of Future Thermoelectric Energy Recuperation for Aviation

Potential of Future Thermoelectric Energy Recuperation for Aviation

Particle Image Velocimetry Investigations of a Subsonic Compressor Tandem Cascade

Analysis of Laminar-Turbulent Transition of a Low-Loss Generic Low Pressure Turbine Distribution

Improved Turbulence and Transition Prediction for Turbomachinery Flows

Aerodynamic Optimization of Turboprop Turbine Blades Using a Response Surface Methodology Based Algorithm

Investigations on Aerodynamic Loading Limits of Subsonic Compressor Tandem Cascades: End Wall Flow

The Effects of Turbulence Length Scale on Turbulence and Transition Prediction in Turbomachinery Flows

Investigations on Aerodynamic Loading Limits of Subsonic Compressor Tandem Cascades: Midspan Flow

Drag Reduction by Boundary Layer Control With Passively Moving Wall

Flow Characteristics of Axial Compressor Tandem Cascades at Large Off-Design Incidence Angles

Performance and Boundary Layer Development of a High Turning Compressor Cascade at Sub- and Supercritical Flow Conditions

Numerical and Experimental Investigations of a Compressor Cascade Flow With Secondary Air Removal

Transition Modeling for Vortex Generating Jets on Low-Pressure Turbine Profiles

An Approach for Inclusion of a Nonlocal Transition Model in a Parallel Unstructured Computational Fluid Dynamics Code

Hybrid-Grid Simulation of Unsteady Wake-Boundary Layer Interaction on a High Lift Low Pressure Turbine Airfoil

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