Ernesto Benini
YOU?
Author Swipe
View article: Hole-Blade Treatment in High-Speed Axial Compressors
Hole-Blade Treatment in High-Speed Axial Compressors Open
The effect of a novel blade treatment on the performance characteristics of NASA Rotor 37 is investigated numerically in this study. The treatment includes making special holes in the blade and near the tip section. The impact of the treat…
View article: Interaction Effects of Fan With Short Aero-Intake: A Multi-Objective Optimization Study with Modeling of Flow Coupling
Interaction Effects of Fan With Short Aero-Intake: A Multi-Objective Optimization Study with Modeling of Flow Coupling Open
The stronger coupling between the turbomachinery and the air inlet becomes more relevant in next-generation turbofan engines with low-pressure ratio fans and compact nacelles. This study presents a numerical investigation of the interactio…
View article: RANS-Based Aerothermal Database of LS89 Transonic Turbine Cascade Under Adiabatic and Cooled Wall Conditions
RANS-Based Aerothermal Database of LS89 Transonic Turbine Cascade Under Adiabatic and Cooled Wall Conditions Open
Modern gas turbines for aeroengines operate at ever-increasing inlet temperatures to maximize thermal efficiency, power, output and thrust, subjecting turbine blades to severe thermal and mechanical stresses. To ensure component durability…
View article: Wall-Modeled Large-Eddy Simulation of a Transonic Gas Turbine Vane—Part II: Mach Number Effect and Losses Prediction
Wall-Modeled Large-Eddy Simulation of a Transonic Gas Turbine Vane—Part II: Mach Number Effect and Losses Prediction Open
This is Part II of a companion article which introduced the implementation of a wall-modeled large-eddy simulation (WMLES) model combined with the immersed boundary method to analyze transonic flow in a gas turbine nozzle guide vane. In pa…
View article: Wall-Modeled Large-Eddy Simulation of a Transonic Gas Turbine Vane—Part I: Model Setup and Assessment of Turbulent Length Scales
Wall-Modeled Large-Eddy Simulation of a Transonic Gas Turbine Vane—Part I: Model Setup and Assessment of Turbulent Length Scales Open
The implementation of a wall-modeled large eddy simulation (WMLES) model combined with an immersed boundary method (IBM) to investigate the detailed aerodynamics of a gas turbine stator operating in a transonic regime is introduced in this…
View article: Multi-fidelity modelling of a high bypass ratio turbofan engine with variable area nozzle
Multi-fidelity modelling of a high bypass ratio turbofan engine with variable area nozzle Open
Low pressure ratio fans of modern civil turbofans suffer from reduced stall margin in the take-off operating line and at part-speed, requiring variable geometry devices. Variable area nozzles (VAN) are one of the investigated solutions to …
View article: ARES: A Meanline Code for Outboard Dynamic-Inlet Waterjet Axial-Flow Pumps Design
ARES: A Meanline Code for Outboard Dynamic-Inlet Waterjet Axial-Flow Pumps Design Open
We introduce the solver ARES: Axial-flow pump Radial Equilibrium through Streamlines. The code implements a meanline method, enforcing the conservation of flow momentum and continuity across a set of discrete streamlines in the axial-flow …
View article: Insights from the Last Decade in Computational Fluid Dynamics (CFD) Design and Performance Enhancement of Darrieus Wind Turbines
Insights from the Last Decade in Computational Fluid Dynamics (CFD) Design and Performance Enhancement of Darrieus Wind Turbines Open
This review provides an analysis of advancements in the design and performance assessment of Darrieus wind turbines over the past decade, with a focus on the contributions of computational fluid dynamics (CFD) to this field. The primary ob…
View article: Multi-Frequency Aeroelastic ROM for Transonic Compressors
Multi-Frequency Aeroelastic ROM for Transonic Compressors Open
The accurate prediction of the aeroelastic behavior of turbomachinery for aircraft propulsion poses a difficult yet fundamental challenge, since modern aircraft engines tend to adopt increasingly slender blades to achieve a higher aerodyna…
View article: Multi-fidelity multidisciplinary meta-model based optimization of a slender body with fins
Multi-fidelity multidisciplinary meta-model based optimization of a slender body with fins Open
Multidisciplinary design optimization (MDO) involving aero-elastic simulations still proves challenging for computational cost. This paper proposes a competitive cost-effective multi-fidelity MDO strategy based on two ideas. Firstly, a new…
View article: Experimental investigation of multi-step airfoils in low Reynolds numbers applications
Experimental investigation of multi-step airfoils in low Reynolds numbers applications Open
This study provides a detailed analysis of the aerodynamic performance of various airfoil configurations, focusing on lift coefficient, stall characteristics, and maximum lift-to-drag ratio. The investigation includes the NACA23012C profil…
View article: An experimental study exploring heat transfer enhancement in tube in tube heat exchanger with pulsating flow
An experimental study exploring heat transfer enhancement in tube in tube heat exchanger with pulsating flow Open
Rationalizing power consumption is crucial in air conditioning and refrigeration design. This study focuses on improving the coefficient of performance (COP) by applying pulsating flow. Experimental trials compared continuous counter and c…
View article: On the coupling between wall-modeled LES and immersed boundary method towards applicative compressible flow simulations
On the coupling between wall-modeled LES and immersed boundary method towards applicative compressible flow simulations Open
The current work presents an innovative numerical technique for high-Reynolds/high-Mach number compressible flow simulations in complex configurations. In particular, the research combines a novel wall-modeled large-eddy simulation techniq…
View article: Numerical Assessment of a Two-Phase Model for Propulsive Pump Performance Prediction
Numerical Assessment of a Two-Phase Model for Propulsive Pump Performance Prediction Open
The present work provides a detailed numerical investigation of a turbopump for waterjet applications in cavitating conditions. In particular, the study focuses on the complexities of cavitation modelling, serving as a pivotal reference fo…
View article: A Critical Review of CFD Modeling Approaches for Darrieus Turbines: Assessing Discrepancies in Power Coefficient Estimation and Wake Vortex Development
A Critical Review of CFD Modeling Approaches for Darrieus Turbines: Assessing Discrepancies in Power Coefficient Estimation and Wake Vortex Development Open
This critical review delves into the impact of Computational Fluid Dynamics (CFD) modeling techniques, specifically 2D, 2.5D, and 3D simulations, on the performance and vortex dynamics of Darrieus turbines. The central aim is to dissect th…
View article: Cooling Strategies for Heated Cylinders Using Pulsating Airflow with Different Waveforms
Cooling Strategies for Heated Cylinders Using Pulsating Airflow with Different Waveforms Open
Pulsate flow is an effective technique applied for cooling several engineering systems depending on their pulsate frequency. One very sound external flow pulsation application is heat transfer over heated bodies. In present work, an experi…
View article: Design optimization and flow analysis of discrete tip injection in a transonic compressor based on nonlinear harmonic method and endwall blockage attenuation
Design optimization and flow analysis of discrete tip injection in a transonic compressor based on nonlinear harmonic method and endwall blockage attenuation Open
Discrete tip injection (DTI) shows great promise for improving the operating stability of transonic axial flow compressor (AFC) rotors. However, the design optimization of DTI remains a challenging task because of both the reliance on comp…
View article: Study on aerodynamic performance of inverted cone vertical axis wind turbine with different rotor configurations
Study on aerodynamic performance of inverted cone vertical axis wind turbine with different rotor configurations Open
Offshore wind resources are abundant. Vertical axis wind turbines (VAWTs) are suitable for working in the sea environment because of their low cost and high reliability. In this paper, an offshore floating inverted cone vertical axis wind …
View article: CFD-Based Analysis of Installed Fuel Consumption and Aerodynamics of Transonic Transport Aircraft during Cruise Flight
CFD-Based Analysis of Installed Fuel Consumption and Aerodynamics of Transonic Transport Aircraft during Cruise Flight Open
Gas turbine fuel burn for an aircraft engine can be obtained analytically using thermodynamic cycle analysis. For large-diameter ultra-high bypass ratio turbofans, the impact of nacelle drag and propulsion system integration must be accoun…