Juan Carlos Assis da Silva

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Produções bibliográficas

• SILVA, J. C. A. ; ALVES, L. S. de B. ; FREITAS, R. B. ; MOREIRA, F. C. . COMPARATIVE ANALYSIS OF STEADY-STATE GENERATION METHODS APPLIED TO THE FLOW OVER A BACKWARDS-FACING STEP. In: Brazilian Congress of Thermal Sciences and Engineering, 2022, Bento Gonçalves. 19th Brazilian Congress of Thermal Sciences and Engineering - ENCIT 2022, 2022.

• SAADI DE ALMEIDA LETTIERI, DAVI ; SANTOS DE BRITO ALVES, LEONARDO ; CARLOS ASSIS DA SILVA, JUAN . MODELING SINGLE JET DIFFUSION FLAME OSCILLATIONS BASED ON UNDER-SAMPLED DATA. In: 19th Brazilian Congress of Thermal Sciences and Engineering, 2022. Procceedings of the 19th Brazilian Congress of Thermal Sciences and Engineering.

• CORDEIRO, FERNANDA ; SANTOS DE BRITO ALVES, LEONARDO ; NUNES, LUIZ ; CARLOS ASSIS DA SILVA, JUAN . DATA-BASED MODAL DECOMPOSITION OF OSCILLATORY METHANE JET DIFFUSION FLAMES. In: 19th Brazilian Congress of Thermal Sciences and Engineering, 2022. Procceedings of the 19th Brazilian Congress of Thermal Sciences and Engineering.

• SILVA, J. C. A. ; FREITAS, R. B. ; ALVES, L. S. de B. . DISCRETE AND CONTINUOUS SPECTRAL METHODS APPLIED TO BOUNDARY LAYER STABILITY. In: 26th International Congress of Mechanical Engeneering - COBEM 2021, 2021, Virtual Conference. Procceedings of the 26th International Congress of Mechanical Engeneering, 2021.

• CARLOS ASSIS DA SILVA, JUAN ; BESSI FREITAS, RÔMULO ; SANTOS DE BRITO ALVES, LEONARDO . COMPARATIVE ANALYSIS OF DISCRETE AND CONTINUOUS SPECTRAL APPROACHES APPLIED ON HYDRODYNAMIC STABILITY. In: 18th Brazilian Congress of Thermal Sciences and Engineering, 2020. Procceedings of the 18th Brazilian Congress of Thermal Sciences and Engineering.

• MOUGO, ADRIANE LOPES ; CAMPOS, GUILHERME AMARAL DO PRADO ; SILVA, JUAN CARLOS ASSIS DA ; ARYDES, FELIPE OLIVEIRA . ESTUDO DA QUALIDADE DO CORTE A PLASMA AUTOMATIZADO PARA O AÇO AISI 304. In: 73 Congresso Anual da ABM, 2019, São Paulo. ABM Proceedings, 2018. p. 1778.

• SILVA, J. C. A. ; SISTON, V. G. P. ; CAMPOS, G. A. P. ; MOUGO, A. L. . ESTUDO DA QUALIDADE DO CORTE A PLASMA AUTOMATIZADO EM CHAPAS DE AÇO A36. In: Congresso Nacional de Engenharia Mecânica, 2018, Salvador. X Congresso Nacional de Engenharia Mecânica, 2018.

Outras produções

Projetos de pesquisa

• 2022 - 2022

  Novel Concepts for Transition Delay in Hypersonic Boundary Layers and their Optimization, Descrição: Use the solver developed at UFF under the AFOSR award FA9550-18-1-0419 to generate three- dimensional, disturbance-free, steady-states for the hypersonic laminar flow around a circular cone at an angle of attack. The method developed by the Research Collaborator have been successful in achieving convergence of one- and two-dimensional problems without spurious convectively unstable disturbances. The application to three-dimensional lifting bodies of interest to the Air Force will be studied during the visit. Previously designed three-dimensional grids will be used to calculate the solution with the new methods. The solution will be compared with previously computed and published solutions using the NASA solver VULCAN-CFD. Also, both linear and nonlinear stability analyses will be performed with these disturbance-free base flow solutions using stability solver developed by the PI. The main goal is to uncover the mechanisms that lead to the appearance of stationary and convectively unstable modes in three-dimensional steady-state solutions, usually in form of stationary crossflow vortices. The prediction of boundary layer transition with base flow solutions contaminated with spurious disturbances is not reliable. The calculation of the true basic state solutions without the spurious, grid-dependent disturbances will allow a reliable boundary-layer transition prediction with stability analysis techniques and facilitate the development of control strategies for such configurations. This grant will be used to fund a graduate student from UFF to spend a 4 months long research exchange period at NIA and NASA Langley. Orçamento: U$ 22,650.00.. , Situação: Concluído; Natureza: Pesquisa. , Alunos envolvidos: Mestrado acadêmico: (1) . , Integrantes: Juan Carlos Assis da Silva - Integrante / Rômulo Bessi Freitas - Integrante / Leonardo Santos de Brito Alves - Integrante / Pedro Paredes - Coordenador / Meelan Choudhari - Integrante., Financiador(es): Air Force Office of Scientific Research's International Office - Bolsa.

• 2021 - 2022

  Instability Free Three-Dimensional Hypersonic Laminar Boundary-Layer Steady-States for Linear and Nonlinear Stability Analyses (FA9550-18-1-0419), Descrição: Hypersonic boundary-layers over circular and elliptic cones can transition from laminar to turbulent under different parametric conditions. Stationary and convectively unstable crossflow disturbances are an integral part of this process. Stability analysis to study the onset and behavior of these disturbances, however, cannot be used. This is due to the fact that current methods to generate steady-states cannot remove such disturbances from the steady-state. Hence, any analysis using these contaminated steady-states is inherently a secondary stability analysis that includes the effects of these disturbances. This project develops a new method to do so and allow the use of these stability tools to understand transition in these flows.. , Situação: Concluído; Natureza: Pesquisa. , Alunos envolvidos: Mestrado acadêmico: (1) . , Integrantes: Juan Carlos Assis da Silva - Integrante / Leonardo Santos de Brito Alves - Coordenador., Financiador(es): Air Force Office of Scientific Research's International Office - Auxílio financeiro.

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