Effects of streamwise oriented riblets on a LPT blade: a numerical study

Sebastian Schulze, Federico Lo Presti, Wojciech Sadowski, Francesca Di Mare

Ruhr University Bochum, Germany

Time, Space and Dynamic Split of Loss Sources in LPT by Means of Phase-locked Proper Orthogonal Decomposition

Matteo Russo¹, Matteo Dellacasagrande¹, Francesca Satta¹, Davide Lengani¹, Daniele Simoni¹, Juri Bellucci², Matteo Giovannini², Angelo Alberto Granata², Monica Gily³

1: University of Genoa, Genova, Italy; 2: Morfo Design SRL, Sesto Fiorentino, Italy; 3: Avio Aero, Torino, Italy

Scale-Resolved Modeling of Gas Turbine Vanes: A Wall-Modeled LES and Immersed Boundary Approach

Francesco De Vanna, Ernesto Benini

University of Padova, Italy

Study on Aerodynamic Loss of HP Turbine Blade Coolant Ejection

Shota Moriguchi, Hiroki Sato, Masaaki Hamabe

IHI, Japan

Experimental and numerical investigation of suction side fences for turbine NGVs

Virginia Bologna¹, Daniele Petronio¹, Francesca Satta¹, Luca De Vincentiis², Matteo Giovannini², Gabriele Cattoli^1,2, Monica Gily³, Andrea Notaristefano³

1: University of Genova, Genova, Italy; 2: Morfo Design, Sesto Fiorentino, Firenze, Italy; 3: Avio Aero, Torino, Italy

High-fidelity sliding mesh method for moving geometries in turbomachinery applications

Junjie Ye¹, Guglielmo Vivarelli¹, João Isler¹, David Moxey², Spencer Sherwin¹, Chris Cantwell¹

1: Department of Aeronautics, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom; 2: Department of Engineering, King’s College London, Strand Campus, London, WC2R 2LS, United Kingdom

Aerodynamic scaling of a high-speed low-pressure turbine cascade, optimized for boundary layer similarity in a low-speed test rig

Giacomo Pastorino^1,2, Elissavet Boufidi¹, Koen Hillewaert², Fabrizio Fontaneto¹

1: von Karman Institute for Fluid Dynamics, Belgium; 2: Université de Liège, Faculté des Sciences appliquées, Belgium

Experimental Measurements of Ingress in a Turbine Stator-Rotor Cavity

Lorenzo Orsini¹, Alessio Picchi¹, Bruno Facchini¹, Dario Barsi²

1: University of Florence; 2: University of Genova

Thermodynamic Design of an Aeroengine for Sustainable Aviation Fuels with a Focus on 3D Components Conception: High Pressure Turbine

Jan Donndorf, Federico Lo Presti, Francesca di Mare

Ruhr-University Bochum, Germany

An experimental and numerical investigation into compressor casing heat shield effectiveness

Andrew Pilkington¹, Vinod Gopalkrishna², Chris Barnes², Leo Lewis¹, Marko Bacic^1,2

1: University of Oxford, United Kingdom; 2: Rolls-Royce Plc, United Kingdom

Development of a reduced order model for turbine blade cooling design

Andrea Pinardi, Noraiz Mushtaq, Paolo Gaetani

Politecnico di Milano, Italy

Topology Optimization for Internal Cooling of Gas Turbine Guide Vanes - A Conjugate Heat Transfer Study

Hossein Nadali Najafabadi¹, Sadegh Fatahi¹, Jonas Lundgren², Carl-Johan Thore¹

1: Linköping University, Sweden; 2: SAAB

Fluid Topology Optimization of Film Cooling: a Design Exploration

Francesco Montomoli^1,2, Thomas Rees², Stefano Furino², Ruben Tomlin²

1: Imperial College of London, United Kingdom; 2: ToffeeX, United Kingdom

Influence of Radial Pressure Gradient on Secondary Flows: Numerical Study and Design Optimization for High-Speed Annular Sector Cascades

Moritz Klappenberger¹, Christian Landfester², Robert Krewinkel³, Martin Böhle¹

1: University of Kaiserslautern and Landau, Germany; 2: German Aerospace Center (DLR), Institute of Future Fules, Cologne; 3: Graz University of Technology, Institute of Thermal Turbomachinery and Machine Dynamics

All Mach flows density-based / pressure-based coupling: method and preliminary results on the example of a rim seal flow in a one-stage axial turbine

Federico Lo Presti, Francesca di Mare

Ruhr University Bochum, Germany

Assessment of Large-Eddy Simulations to simulate a high-speed low-pressure turbine cascade

Florent Duchaine, Xavier Delon

CERFACS, France

Hybrid RANS-LES Simulation of the MTU-T161 LPT Profile - Forcing LES in the Endwall Boundary Layer by Grid Refinement

Jakob Voigt¹, Felix M. Möller², Patrick Bechlars³, Lars Wein¹

1: Leibniz University Hannover, Institute of Turbomachinery and Fluid Dynamics; 2: German Aerospace Center (DLR); 3: MTU Aero Engines

Numerical performance analysis of a turbine operated by a rotating detonation combustor

Majid Asli¹, Mosaab Mhgoub², Klaus Höschler¹

1: Brandenburg University of Technology; 2: Technical University of Berlin

Precise Prediction of Supersonic Passage Starting Process via Fast 1D Modeling

Kevin Boes, Lukas Inhestern, Guillermo Paniagua

Purdue University, United States of America

Evaluation of RANS and URANS approaches for the prediction of hot streak migration in a high-pressure turbine stage

Christopher Wingel¹, Nicolas Binder¹, Yannick Bousquet¹, Jean-François Boussuge², Nicolas Buffaz³, Sébastien Le Guyader³

1: Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO), France; 2: Centre Européen de Recherche et de Formation Avancée en Calcul Scientifique (CERFACS), France; 3: Safran Helicopter Engines, France

On the impact of Off-Design Condition on the Thermal Performance of Rotor Platform Cooling

Giovanna Barigozzi, Giovanni Brumana, Nicoletta Franchina, Elisa Ghirardi

Università di Bergamo, Italy

On the impact of Reynolds number on the performance of a trenched shaped hole

Giovanna Barigozzi¹, Ali Zamiri², Giovanni Brumana¹, Nicoletta Franchina¹, Jin Taek Chung²

1: Università di Bergamo, Italy; 2: Korea University, Republic of Korea

Impact of turbine inlet temperature distortion on rotor blade heat transfer using infrared thermography and Computational Methods

Manuela Sisti¹, Richard S. Adoua², Chiara Falsetti³, Haidong Li², Paul F. Beard¹

1: University of Oxford, United Kingdom; 2: Rolls-Royce; 3: Delft University of Technology

Experimental Investigation of high pressure shroud components with disruptive cooling structures manufactured by SLM

Bernhard V. Weigel¹, Robert Krewinkel², Gunter Eschmann¹, Stefan Odenbach¹, Wieland Uffrecht¹

1: TU Dresden, Germany; 2: MAN Energy Solutions SE, TU Graz Austria

Architecture of a Coupling Framework for Multi-Fidelity Aero-Thermal Simulations for Aero Engines

Ute Israel, Francois Cottier

MTU Aero Engines AG, Germany

The effect of purge-mainstream density ratio on rim seal fluid mechanics

Jason S. Boldero, Simon Vella, Hui Tang, James A. Scobie, Gary D. Lock, Carl M. Sangan

Department of Mechanical Engineering, University of Bath, Bath, United Kingdom

Numerical Analysis Front Deflector at Outer Air Seal of Low Pressure Turbine

Kacper Palkus^1,2

1: MTU Aero Engines Polska, Tajecina 108, 36-002, Jasionka, Poland; 2: Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, al. Powstańców Warszawy 8, 35-959 Rzeszów, Poland

Numerical Study of the Interaction between the Sealing Flow Rate and the Main Flow in a Gas Turbine Stage

Daniele Biassoni¹, Dario Barsi¹, Lorenzo Orsini², Davide Lengani¹

1: University of Genova; 2: University of Florence

Overview of the influence of parameters and failures on Dry Gas Seals

Till Martin Brockmann, Sebastian Schuster, Dieter Brillert

Chair of Turbomachinery at the University of Duisburg-Essen, Germany

Impact of tip clearance on the performance of a highly loaded unshrouded gas turbine rotor

Nitikorn Chanahan, Jens Fridh

KTH-Royal Institute of Technology, Sweden

Analysis of interactions among loss-generating mechanisms in axial flow turbines

Greta Raina^1,2, Yannick Bousquet², David Luquet¹, Eric Lippinois¹, Nicolas Binder²

1: Safran Aircraft Engines, 77550 Moissy-Cramayel, France; 2: ISAE-SUPAERO, Université de Toulouse, 31400 Toulouse, France

Prediction of the Unsteady Flow Field in a Turbine including Air Seal Cavities with Time and Frequency Domain Methods

Maximilian Hartmann¹, Marcel Oettinger¹, Daniel Schluess¹, Georg Geiser², Florian Herbst²

1: MTU Aero Engines AG, Germany; 2: Institute of Propulsion Technology, German Aerospace Center (DLR)

RANS Turbulence Modeling of Multistage Compressors using a Combination of Recent Model Extensions

Dominik Anton Suchla¹, Alexander Führing², Pascal Franke¹, Dajan Mimic¹, Lars Wein¹

1: Leibniz Universität Hannover, Germany; 2: MTU Aero Engines AG

Improved turbine flow prediction using a vortex-reactive turbulence-model extension

Dajan Mimic^1,3, Tim Kluge¹, Marcel Oettinger²

1: Leibniz Universität Hannover, Germany; 2: MTU Aero Engines; 3: Cluster of Excellence SE²A – Sustainable and Energy Efficient Aviation TU Braunschweig, Braunschweig, Germany

Numerical Modelling of pressure losses and heat transfer of a vaporizer tube bundle with quantification of fins effects with CFD and generation of correlations

Francois Cottier, Oliver Beck, Silke Wanzek, Bernhard Jäppelt

MTU Aero Engines AG, Germany

Droplet-laden flows in multi-stage compressors – an overview of the impact of modeling depth on calculated compressor performance

Geist Silvio, Markus Schatz

Helmut-Schmidt-University Hamburg, Germany

Validation of a Dual-Mesh method for hybrid URANS-LES

Dario Amirante¹, Ilias Vasilopoulos², Marcus Meyer², Nick Hills¹

1: University of Surrey, United Kingdom; 2: Rolls-Royce Deutschland

Trailing edge loss of choked organic vapor turbine blades

Leander Hake, Stefan aus der Wiesche

Muenster University of Applied Sciences, Germany

Annular high pressure turbine cascade test rig for the investigation of secondary flow structures

Hans Alexander Hager¹, Anna-Lisa Laufer², Marios Patinios², Martin Lange¹, Ronald Mailach¹

1: Chair of Turbomachinery and Flight Propulsion, Technische Universität Dresden, Dresden 01062, Germany; 2: GE Aerospace, Advanced Aviation Technology, 85748 Garching bei München, Germany.

Cavity Flow Instabilities in a Purged High-Pressure Turbine Stage

Lorenzo Da Valle^1,2, Sergio Lavagnoli¹

1: von Karman Institute for Fluid Dynamics, Belgium; 2: University of Liege, Belgium

Influence of Hub Purge flow rate on Forced Response in a Low Pressure Turbine

Alex Trafford¹, Sergio Lavagnoli², Sina Stapelfeldt¹, Gustavo Lopes²

1: Imperial College London, United Kingdom; 2: Von Karman Institute, Belgium

Multi-objective optimization of an S-type compressor cascade at low transonic inlet conditions

Marco Casoni, Andrea Magrini, Ernesto Benini

Università di Padova, Italy

On the Effectiveness of Low-Fidelity Optimization Methods for Propeller Design

Manuel Casablanca, Francesco De Vanna, Andrea Magrini, Ernesto Benini

Università Degli Studi di Padova, Italy

Validation of an Eddy-viscosity-based Roughness Model using High-fidelity Simulations

Kenan Cengiz, Hendrik Seehausen, Lars Wein

Leibniz University Hannover, Germany

Investigation of the laminar-turbulent transition mechanisms of low pressure turbine boundary-layers with Linear Stability Theories

Alice Fischer, Frank Eulitz

von Karman Institute for Fluid Dynamics, Chaussée de Waterloo 72, 1640 Rhode-St-Genèse, Belgium

Source-term based synthetic turbulence generator applied to compressible DNS of the T106A low-pressure turbine

João Isler¹, Guglielmo Vivarelli¹, Chris Cantwell¹, Francesco Montomoli¹, Spencer Sherwin¹, Yuri Frey², Marcus Meyer³, Raul Vazquez²

1: Department of Aeronautics, Imperial College London, London, UK; 2: Rolls-Royce plc, Derby, UK; 3: Rolls-Royce Deutschland, Dahlewitz, Germany

An Aggregated Turbulence-Transition Model for the Prediction of Short and Long Separation Bubbles

Andrea Carlucci, Daniele Petronio, Matteo Dellacasagrande, Daniele Simoni, Francesca Satta

University of Genoa, Italy

Direct Numerical Simulations of the Spleen cascade: a study of the impact of compressibility on transition and separation in a low-pressure turbine passage

Maxime Borbouse¹, Nathan Deneffe¹, Mars Thys¹, Margaux Boxho^1,2, Michel Rasquin², Gustavo Lopes³, Sergio Lavagnoli³, Koen Hillewaert^1,2,3

1: Université de Liège, Belgium; 2: Cenaero, Belgium; 3: von Karman Institute for Fluid Dynamics, Belgium