Filipe Dutra da Silva

Federal University of Santa Catarina | UFSC · Department of Mobility Engineering

Thrust gates have been reported as a promising concept to reduce jet-flap interaction noise. This manuscript proposes two quantitative criteria for the design of thrust gates based on time-averaged flow parameters that can be extracted from steady-state simulations. Computations were carried out by solving the explicit, transient, compressible latt...

Propeller-driven aircraft noise has been a problem to passengers and community for decades. With the recent advances and focus on the development of electric propulsion and unmanned aerial vehicles, the noise emitted by propellers is still a concern. The design of low-noise propellers requires a balance between noise emission and aerodynamic perfor...

This paper presents a comparison between results obtained with a 3D and an axisymmetric model of a submarine hull. The objective is to obtain an accurate model with low computational cost for such vessels. The chosen geometry is the hull model 4165 from series 58. Numerical errors due to grid refinement and sensitivity to boundary conditions are as...

Airframe noise is one of the main components of aircraft noise, especially during the approach procedure. This component is generated by the interaction of flow with aircraft elements such as high lift devices and landing gears. In this sense, the use of numerical tools became interesting for the design process as well as providing complementary da...

Recent studies show that the global electric energy demand must double until 2050 due to the increase of domestic consumption and the electrification of vehicles. In order to support that, and considering the need to reduce greenhouse gas emissions, the exploration of renewable energy sources has increased considerably and it is expected that by 20...

Neste trabalho, realizou-se uma análise em mecânica dos fluidos computacional (CFD) a fim de se validar uma metodologia, aplicável ao AeroDesign, de desenvolvimento de projeto de dispositivo de ponta de asa do tipo endplate. Um modelo de simulação foi desenvolvido, baseando-se em simulações RANS. Utilizou-se a geometria de asa de um Piper PA-18 com...

A simulation model to estimate drag of an axisymmetric submarine hull was built using the open source code OpenFOAM. The objective is to obtain modeling parameters which represent, with efficiency, the movement of such vessels. Numerical errors due to grid refinement and sensitivity to boundary conditions were assessed and validation through compar...

An investigation of a wavepacket model for free-jet and jet-surface interaction noise was conducted. The source term for the axisymmetric mode was extracted from a Mach 0.9 jet large eddy simulation and employed to adjust the parameters of a simple source model. Streamwise coherence decay, in particular, was considered. The source model was propaga...

One of the main sources of aircraft noise during takeoff condition is caused by the exhaust jet from the engine. Therefore, studies in this area have gained importance with the rise of stricter noise regulations. In this paper, a numerical analysis of a cold single-flow under both isolated and installed configurations were conducted. The flow condi...