fluid dynamics

design optimization and testing of high-performance motors

This article has reported on an industrial R&D project aimed at identifying a cost-effective response to the more and more challenging high-speed motor requirements that presently come from the gas industry sector. To meet the very high efficiency, dynamic performance, and reliability standards required by cutting-edge turbomachinery drive applications, a special PM synchronous motor prototype has been developed. 

Innovations in a floating production system for optimizing costs

An optimization process using modeFRONTIER is implemented with the aim of optimizing the design of a floating production system with the minimization of installation and operating cost in mind. The hull form was designed using a genetic algorithm, taking into account 7 parameters, and focusing on minimizing steel weight.

Study of the impact of structural parameters on the dynamic response of an electronic fuel injector

The study concentrates on the effects of structural parameters of an electronic fuel injector on its dynamic response. The injector was developed for a marine medium-speed diesel engine. The dynamic response from the start of the control signal to the end of the needle valve closing was investigated. Firstly, a complete and detailed model of the electronic fuel injector was built and integrated into an optimization model, where a MOGA was applied.

How to optimize an external gear pump in highly constrained conditions

The objective of this project was to take a standard series gear pump with a displacement of about 20 cc/rev and to minimize its noise emission, while at the same time maintaining the same level of performance. The optimizer modeFRONTIER and simulator HygeSim are used to find the optimal configurations of the pump model. 

Reliability-based Robust Design Optimization Using Polynomial Chaos Expansion for Aero-Engine Inlet Applications

This paper describes the methodologies developed by ESTECO during the UMRIDA European Project, dedicated to Uncertainty Management and Robust Design Optimization and implemented in the modeFRONTIER software platform. The implementation and the results of an automatic Multi-Objective Robust Design Optimization methodology applied to a problem in the aerospace industry is described: the acoustic performance optimization of the liner of a typical regional jet engine nacelle (produced for the application treated in this paper by Leonardo Aircraft). 

Azimut Benetti propels cruise speed with modeFRONTIER

The Naval Architecture and Marine Engineering Unit (DITEN Department) of Genoa University work jointly with DETRA Custom Propellers and Azimut Benetti’s R&D Centre, using modeFRONTIER to optimize the design of a custom propeller for a high-speed Azimut Benetti 95 RPH yacht.


Advanced Predictive Diesel Combustion Simulation Using Turbulence Model and Stochastic Reactor Model

This work studies the modeling of turbulence time-scales in diesel engines within a 0D model framework. The goal is to see its effect on combustion and emission formation taking into consideration different operating conditions. The combustion is described using the pdf based DI-SRM. Optimization was run using modeFRONTIER.

Optimum Design of Exhaust System of a Ship

A methodology for the optimization of a silencer in a ship's exhaust system is developed. The study aims to optimize the acoustics and back pressure, with results derived by using the optimization platform modeFRONTIER. The objectives of noise and pressure reduction were both successfully realized in this study, resulting in an optimized and validated system. 

Multi-objective Optimization of a Data Center Modeling Using Response Surface

In the present paper, a multi-objective optimization process that utilizes a Genetic Algorithm is used in a response surface methodology based on radial basis function, with the aim of significantly reducing the engine running time of a model data center. A range of the design parameters is optimized to search for the best combinations that satisfy both of the two objectives. 

Multi-Objective Analysis and Optimization of Integrated Cooling in Micro-Electronics With Hot Spots

This work aims to find the optimal configuration of three micro pin-fins in order to reach efficient thermal management. The optimization study using modeFRONTIER shows that pin-fin configurations are capable of containing heat flux levels of next generation electronic chips without compromising the structural integrity, and even the smallest thin film thickness improves both overall and local temperature uniformity.