Proceedings Papers

Stall Detection Within the Low Pressure Compressor of a Twin-Spool Turbofan Engine by Tip Flow Analysis

Non-Axisymmetric End Wall Profiling in Transonic Compressors—Part I: Improving the Static Pressure Recovery at Off-Design Conditions by Sequential Hub and Shroud End Wall Profiling

Non-Axisymmetric End Wall Profiling in Transonic Compressors—Part II: Design Study of a Transonic Compressor Rotor Using Non-Axisymmetric End Walls—Optimization Strategies and Performance

Enhancing the Stability of Subsonic Compressors Using Casing Grooves

Experimental Investigation on the Effects of Unsteady Excitation Frequency of Casing Treatment on Transonic Compressor Performance

The Design of Highly Loaded Axial Compressors

Application of a Navier-Stokes Solver to the Study of Open Rotor Aerodynamics

Riblets in Turbulent Flow Regimes of 2-D Compressor Blades

A Three-Dimensional CFD Design Study of a Circulation Control Inlet Guide Vane for a Transonic Compressor

Experimental Investigation of Two-Phase Flow Phenomena in Transonic Compressor Cascades

Advanced Non-Axisymmetric Endwall Contouring for Axial Compressors by Generating an Aerodynamic Separator—Part I: Principal Cascade Design and Compressor Application

Advanced Non-Axisymmetric Endwall Contouring for Axial Compressors by Generating an Aerodynamic Separator—Part II: Experimental and Numerical Cascade Investigation

Investigation of Skewed Slot Casing on Transonic Axial-Flow Fan Stage

Effects of Endwall Profiling on Axial Flow Compressor Stage

Examination of Rotating Stall Inception in a Small High Speed Axial Compressor

Fan Root Aerodynamics for Large Bypass Gas Turbine Engines: Influence on the Engine Performance and 3D Design

Online Stall Control With the Digital Signal Processing Method in an Axial Compressor

Effects of Upstream Wake Phasing on Transonic Axial Compressor Performance

Numerical Study on End-Wall Flow in Highly Loaded Supercritical Compressor Cascades

Rotor Casing Contouring in High Pressure Stages of Heavy Duty Gas Turbine Compressors With Large Tip Clearance Heights

Experimental and Numerical Analysis of Axial Skewed Slot Casing Treatments for a Transonic Compressor Stage

Influence of Surface Roughness on the Performance of a Compressor Blade in a Linear Cascade: Experiment and Modeling

Unsteady Pressure Measurements in a Single Stage Low Pressure Axial Compressor: Tip Vortex Flow and Stall Inception

Effect of Real Geometry on Compressor Performance Predictions

Combined Effects of Forward Sweep and Tip Clearance on the Performance of Axial Flow Compressor Stage

A Study of Stall Inceptions in a Low-Speed Axial-Flow Compressor With Various Radial Loadings

Stability Enhancement of a Multi Stage Compressor by Air Injection

Active Flow Control to Improve the Aerodynamic Performance of Axial Turbomachines

Quasi-Three Dimensional Verification of the Modular Axial Compressor Design Approach

A Method for Evaluating the Aerodynamic Stability of Multi-Stage Axial-Flow Compressors

CFD Simulations of the TP400 IPC With Enhanced Casing Treatment in Off-Design Operating Conditions

The Discrete Adjoint of a Turbomachinery RANS Solver

Analysis of Gas Turbine Rotating Cavities by an One-Dimensional Model

Compressor Design From Specification to Validation: Application of a Fast and Reliable Process

Concurrent Aerodynamic-Aeromechanic Design Optimization for Turbomachinery Blades Using Adjoint Method

Development of Adjoint Solvers for Engineering Gradient-Based Turbomachinery Design Applications

Fully Parametric High-Fidelity CFD Model for the Design Optimisation of the Cyclic Stagger Pattern of a Set of Fan Outlet Guide Vanes

A Hybrid Unstructured/Spectral Method for the Resolution of Navier-Stokes Equations

Analytical Modelling of a Fluid Coupling

Calculations of High-Lift Cascades in Low Pressure Turbine Conditions Using a Three-Equation Model

Design Optimization of a Centrifugal Compressor Impeller Using Radial Basis Neural Network Method

Large Eddy Simulation of a Controlled-Diffusion Cascade Blade at Varying Flow Inlet Angles

Fully Three-Dimensional Viscous Semi-Inverse Method for Subsonic Mixed-Flow and Radial Impeller Design

Dual Point Redesign of Axial Turbines Using a Viscous Inverse Design Method

A Strategy for Multi-Point Shape Optimization of Turbine Stages in Three-Dimensional Flow

Application of Simple Gradient-Based Method and Multi-Section Blade Parameterization Technique to Aerodynamic Design Optimization of a 3D Transonic Single Rotor Compressor

Duct Design in Subsonic and Supersonic Flow Regimes With and Without Normal Shock Wave Using Flexible String Algorithm

Optimization of Variable Stator’s Angle for Off Design Compression System Using Streamline Curvature Method

Application of Topology-Free Optimization to Manage Cooled Turbine Tip Heat Load

Optimum Design and Experimental Study of a Very Low-Specific-Speed Centrifugal Blower Blade

A New Concept of a Two-Dimensional Supersonic Relative Inlet Mach Number Compressor Cascade

Validation of the Non-Linear Harmonic Approach for Quasi-Unsteady Simulations in Turbomachinery

Development and Validation of a New Universal Through Flow Method for Axial Compressors

Turbocharger Design for a 1.8 Liter Turbocharged Gasoline Engine Using an Integrated Method

Multiobjective Optimization Approach to Multidisciplinary Design of a Three-Dimensional Transonic Compressor Blade

2D Viscous Aerodynamic Shape Design Optimization for Turbine Blades Based on Adjoint Method

An Accelerated 3D Navier-Stokes Solver for Flows in Turbomachines

A Model for Potential Deterministic Effects in Transonic Compressor Flows

Reliable and Accurate Prediction of Three-Dimensional Separation in Asymmetric Diffusers Using Large-Eddy Simulation

Three-Dimensional Aerodynamic Design Optimization of a Turbine Blade by Using an Adjoint Method

Investigation of Tip Clearance Modeling Techniques for a Transonic Compressor Rotor

Visualization and Post-Processing of Centrifugal Compressor Computational Fluid Dynamics Flow Fields

Analysis of the Unsteady Flow in an Aspirated Counter-Rotating Compressor Using the Nonlinear Harmonic Method

A Robust Design Optimization of a Mixed-Flow Compressor Impeller

An Absorbing Inlet Buffer Layer for Rotor Wake/Stator Time Domain Computations

Experimental Study of Supersonic Jet Noise Reduction With Microjet Injection

Experimental Study for the Effect of Vaned Diffuser Leading Edge on the Noise Generated From a Centrifugal Fan

Far-Field Radiation of Aerodynamic Sound Sources in Axial Fans Fitted With Passive Noise Control Features

Duct Aerodynamics for Intercooled Aero Gas Turbines: Constraints, Concepts and Design Methodology

Pressure Loss Modeling of Non-Symmetric Gas Turbine Exhaust Ducts Using CFD

A Physical Interpretation of Stagnation Pressure and Enthalpy Changes in Unsteady Flow

Some Lessons Learned

Highlights of Roy Smith’s Career at GE

Gas Temperature Profile Attenuation Through a Multistage Axial-Flow Turbine

Validating Numerical CFD Simulations With Experimental Data for Turbulence Phenomena in Axial Flow Gas Turbine Diffusers

An Experimental and Numerical Study of the Effects of Flow Incidence Angles on the Performance of a Stator Blade Cascade of a High Pressure Steam Turbine

The Application of Non-Axisymmetric Endwall Contouring in a Single Stage, Rotating Turbine

Turbine Stator Well CFD Studies: Effects of Coolant Supply Geometry on Cavity Sealing Performance

Computational Study of the Effects of Shock Waves on Film Cooling Effectiveness

Numerical and Experimental Analysis of the Flow in an Aggressive Intermediate Turbine Duct

Investigation of CFD Prediction Capabilities for Low Reynolds Turbine Aerodynamics

Controlling Tip Leakage Flow Over a Shrouded Turbine Rotor Using an Air-Curtain

Improving Intermediate Pressure Turbine Performance by Using a Non-Orthogonal Stator

Numerical Investigation of the Effect of Tip Leakage Flow on an Aggressive S-Shaped Intermediate Turbine Duct

LP Turbine Laminar Separation With Actuated Transition: DNS, Experiment and Fluidic Oscillator CFD

The Tip Leakage Flow of an Unshrouded High Pressure Turbine Blade With Tip Cooling

Influence of Rim Seal Purge Flow on Performance of an Endwall-Profiled Axial Turbine

Effects of Surface Groove on Separated Flow Transition on a High-Lift Low-Pressure Turbine Profile Under Steady Inflow Conditions

Measurements of Secondary Losses in a High-Lift Front-Loaded Turbine Cascade With the Implementation of Non-Axisymmetric Endwall Contouring

Measurement and Computation of Flowfield in Transonic Turbine Nozzle Blading With Blunt Trailing Edges

Validation of Turbine Airfoil Leading Edge Pressure and Skin Friction Modeling and Measurement

Numerical Simulation of Flow Fields of Variable Geometry Turbine With Spherical Endwalls or Nonuniform Clearance

Detailed Studies on Separated Boundary Layers Over Low-Pressure Turbine Airfoils Under Several High Lift Conditions: Effect of Freesteam Turbulence

Aerodynamics of a Covered Trailing Edge Vane: Effects of Blowing Rate, Reynolds Number, and External Turbulence

Influences of Axial Gap Between Blade Rows on Secondary Flows and Aerodynamic Performance in a Turbine Stage

Aerodynamic Investigation of the Tip Leakage Flow for Blades With Different Tip Squealer Geometries at Transonic Conditions

Experimental and Numerical Investigation on the Influence of Trailing Edge Bleeding on the Aerodynamics of a NGV Cascade

High Pressure Turbine Stage Endwall Profile Optimisation for Performance and Rim Seal Effectiveness

The Effect of Rotor Tip Clearance Size Onto the Separated Flow Through a Super-Aggressive S-Shaped Intermediate Turbine Duct Downstream of a Transonic Turbine Stage

Experimental and Computational Investigations of Low-Pressure Turbine Separation Control Using Vortex Generator Jets

Investigation of the Flow Field on a Transonic Turbine Nozzle Guide Vane With Rim Seal Cavity Flow Ejection

Assessment of the Flow Quality of a Transonic Turbine Cascade

The Effect of Leading Edge Curvature on a Mixed Flow Turbine Performance Under Pulsating Flow Conditions

High Hub/Tip Ratio Centrifugal Compressors

A Discussion on Volute Design Method for Radial Inflow Turbines

Aerodynamic Design to Increase Pressure Ratio of Centrifugal Compressors for Turbochargers

Meanline Modeling of Radial Inflow Turbine With Variable Area Nozzle

Optimization of Turbocharger Ported Shroud Compressor Stages

Comparison Between Steady and Unsteady Double-Entry Turbine Performance Using the Quasi-Steady Assumption

Experimental Investigation of the Flow in the Pipe Diffuser of a Centrifugal Compressor Stage Under Selected Parameter Variations

Passive Control of Rotating Stall in Vaneless Diffuser With Radial Grooves: Detailed Numerical Study

A Numerical and Experimental Performance Comparison of an 86 MM Radial and Back Swept Turbine

Role of Tip Leakage in Stall of a Transonic Centrifugal Impeller

Pulse Performance Modeling of a Twin Entry Turbocharger Turbine Under Full and Unequal Admission

Analysis and Redesign of the Stationary Components for a Low Flow Coefficient Centrifugal Compressor Stage

Extension of the Stator Vane Upstream Across the 180° Bend for a Multistage Radial Compressor Stage

Influence of Labyrinth Seal Leakage on Centrifugal Compressor Performance

Experimental Investigations of the Disturbed Inlet-Flow Structure Caused by Mixing Geometries and Its Influence on the Performance of a Turbocharger Centrifugal Compressor

Performance Improvement of a Centrifugal Compressor Stage by Increasing Degree of Reaction and Optimizing Blade Loading of a 3D-Impeller

Numerical Computation of the Pulsatile Flow in a Turbocharger With Realistic Inflow Conditions From an Exhaust Manifold

Aerodynamic Design and Experimental Validation of Centrifugal Compressor Impellers With Small Flow Rate

Experimental and Numerical Investigation of an Aero-Engine Centrifugal Compressor

Flow Field Structures of the Impeller Backside Cavity and Its Influences on the Centrifugal Compressor

The Development of a Deviation Model for Radial and Mixed-Flow Turbines for Use in Throughflow Calculations

Design and Off-Design Flow Fields of a Transonic Centrifugal Compressor Impeller

A Numerical and Experimental Study of the Rotor Inlet Flow Fields of Radial Turbines Using Vaned and Vaneless Stators

The Influence of Shroud Curvature and Other Related Factors on Impeller Performance Characteristics

Application of Flow Control in a Novel Sector Test Rig

Radial Forces in a Centrifugal Compressor Equipped With Vaned Diffusers

Experimental Study of Pinch in Vaneless Diffuser of Centrifugal Compressor

Water Droplets Dispersion and Optimization of Water Removal Suction Slot Locations on Stationary Blades in Last-Stage of a 600 MW Steam Turbine

On the Effects of Unsteadiness on the Condensation Process in Low-Pressure Steam Turbines

A Redesign Strategy to Improve the Efficiency of a 17-Stage Steam Turbine

Unsteady Flow in a Turbocharger Centrifugal Compressor: 3D-CFD Simulation, Impeller Blade Vibration and Vaned Diffuser-Volute Interaction

Multistage Compressor and Turbine Modeling for the Prediction of the Maximum Turbine Speed Resulting From Shaft Breakage

On the Phenomenon of Pressure Pulses Reflecting Between Blades of Adjacent Blade Rows of Turbo-Machines

Investigation of Wake Transport in a Turbine Blade Channel and Its Effect on the Boundary Layer Development

Experimental Investigation of Non-Axisymmetrical Flow Control in a Low Speed Axial Compressor

Experimental Investigation of the Influence of Inlet Distortion on the Stall Inception in a Low Speed Axial Compressor

Unsteady Vortices and Blade Loading in a High-Pressure Turbine