fluid dynamics

Modelling and Multi-objective Optimisation of the VHP Pouch Packaging Sterilisation Process

This paper aims to optimize the pouch packaging sterilization process used in aseptic technology. The study is made of two parts: first the modeling and fluid dynamics simulation of the sterilization process on the pouch with a subsequent experimental validation, and then the multiobjective process optimization, with the aim of finding
the most suitable system configuration using modeFRONTIER.

Innovative methodologies for Robust Design Optimization with large number of uncertainties using modeFRONTIER

This paper describes the methodologies that have been developed by ESTECO during the first phase of the UMRIDA European Project, conducted in the fields of Uncertainty Management and Robust Design Optimization, implemented in the software platform modeFRONTIER. Aeronautical test cases proposed by UMRIDA consortium are used to verify the validity of the methodologies. 

Characterization of Aerodynamic Design Spaces for Adjustable Tractor Surfaces

A method for the characterization of the aerodynamics benefit of a generic aerodynamic drag reduction device was presented in this work. CFD simulations were carried out using a Lattice-Boltzmann based method and coupled with modeFRONTIER for the creation of multiple Kriging Response Surfaces. The methodology was further refined by obtaining positioning maps for multiple tractor configurations.

Fluid dynamics Optimization of racing engine inlet ducts at Aprilia Racing

A two-step optimization procedure of intake valves and intake ports of the Aprilia RS-GP motorbike is presented in this work. Parametric geometry design, automatic mesh generation and three-dimensional CFD analysis are coupled with different optimization techniques – using the platform modeFRONTIER. The objective is the improvement of fluid dynamic efficiency of valve and port while simultaneously guaranteeing their feasibility. 

Optimization of a single stage double suction centrifugal pump

In this study, the optimization of a double-suction centrifugal pump is developed and run with the objective being the maximization of its hydraulic efficiency. The optimization of the pump is performed by means of the modeFRONTIER optimization platform using MOGA II and ANSYS CFX software was used for CFD simulations.

Collaborative Multidisciplinary Design Optimization for Conceptual Design of Complex Products

This thesis explores the prospect of applying MDO in the conceptual design (CD) phase. MDO will serve as an enabler to apply higher fidelity models (HFMs) earlier and thus raise the level of concept information. The thesis provides guidelines to overcome technical and organizational barriers to implementing MDO and HFMs in practical engineering settings. A guideline for CMDO implementation is proposed for design engineers with limited prior knowledge in MDO.

Numerical investigation on the hydrodynamic performance of fast SWATHs with optimum canted struts arrangements

We present a study on the interference effects generated by canted struts in SWATH vessels designed to achieve best resistance performance. The hull shapes were found by a computer driven procedure based on fully parametric geometry definition, a low order potential flow solver with linearized free surface condition and a multi-objective differential evolution optimization algorithm.

Boundary-Element Methods and Wave Loading on Ships

In this study, hydrodynamic solvers, along with appropriately developed ship-parametric models, are integrated within an optimization environment using modeFRONTIER illustrating the design-through-analysis capabilities of the IGA-BEM approach. As seen here, the IGA-BEM concept can contribute toward drastically improving the efficiency and accuracy of calculating ship wave loads and hull-form optimization.

ESTECO webinar recording | Integrating XFlow, WB-Sails and modeFRONTIER for olympic sail optimization

Expert engineers from WB-Sails, Next Limit Dynamics and ESTECO are pleased to announce the joint webinar that will demonstrate the advantages of the integration of their software, illustrating the details of the models, and presenting the results of the optimization.

Preliminary Design Investigation for the development of new hull shapes for America’s Cup Class catamaran AC-62

Modern design techniques such as optimization and computational fluid dynamics have been extensively used in this investigation with the goal to improve the hydrodynamic performance of a yacht that will participate in the America's cup. Here modeFRONTIER is integrated with STARCCM+ in order to perform a preliminary investigation on the development of the forms of the hull.

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