Daiane Iglesia Dolci

Pós-doutorado

Formação complementar

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Áreas de atuação

Organização de eventos

Participação em eventos

Participação em bancas

Produções bibliográficas

• PRIVATO, TOMÁS SAMBIASE ; DE SÁ BRASIL LIMA, JOÃO ; DOLCI, DAIANE IGLESIA ; CARMO, BRUNO SOUZA ; HAYASHI, MARCELO TANAKA ; VOLPE, ERNANI VITILLO . An Adjoint-Based Methodology for Sensitivity Analysis of Time-Periodic Flows With Reduced Time Integration. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING (ONLINE) , v. 126, p. e7663, 2025.

• DOLCI, DAIANE I. ; MADDISON, JAMES R. ; HAM, DAVID A. ; PALLEZ, GUILLAUME ; HERRMANN, JULIEN . checkpoint_schedules: schedules for incrementalcheckpointing of adjoint simulations. Journal of Open Source Software , v. 9, p. 6148, 2024.

• DOS SANTOS, THIAGO DIAS ; OLENDER, ALEXANDRE ; DOLCI, D. I. ; CARMO, B. S. . Velocity model-based adapted meshes using optimal transport. GEOPHYSICS , v. JA, p. 1-60, 2024.

• DOLCI, DAIANE IGLESIA ; SILVA, FELIPE A. G. ; PEIXOTO, PEDRO S. ; VOLPE, ERNANI V. . Effectiveness and computational efficiency of absorbing boundary conditions for full-waveform inversion. GEOSCIENTIFIC MODEL DEVELOPMENT , v. 15, p. 5857-5881, 2022.

• DOLCI, DAIANE IGLESIA ; CARMO, BRUNO SOUZA . Sensitivity of the least stable modes to passive control for a flow around an elastically mounted circular cylinder. Physical Review Fluids , v. 7, p. 083901, 2022.

• DOLCI, DAIANE I. ; SÁ BRASIL LIMA, JOÃO ; PRIVATO, TOMAS S. ; CARMO, BRUNO S. ; VOLPE, ERNANI V. . Adjoint sensitivity analysis of steady laminar flows with respect to nongeometrical parameters. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING (ONLINE) , v. 122, p. 1797-1823, 2021.

• DOLCI, DAIANE I. ; CARMO, BRUNO S. . Bifurcation analysis of the primary instability in the flow around a flexibly mounted circular cylinder. JOURNAL OF FLUID MECHANICS , v. 880, p. 23, 2019.

• MALVAR, S. ; DOLCI, D.I. ; CARMO, B.S. . FWI Performance Improvement with the Use of Wavelet Transforms. In: Digital Subsurface Conference in Latin America, 2021, Online. Digital Subsurface Conference in Latin America. p. 1.

• SOUZA, J.F.D. ; DA SILVA, F.A.G. ; DOLCI, D.I. ; MANRIQUE, L.R. ; GOMI, E.S. ; SENGER, H. . An Approach for Optimizing the Performance of an FWI Application on HPC Clusters. In: Digital Subsurface Conference in Latin America, 2021, Online. Digital Subsurface Conference in Latin America. p. 1.

• DOLCI, D. I. ; PAULO, G. S. . Previsão numérica do impacto de uma gota viscoelástica numa superfície rígida por um modelo algébrico. In: CMAC-Sul, 2014, Curitiba - PR. I Congresso de Matemática Aplicada e Computacional - Sul, 2014.

• DOLCI, D. I. ; PAULO, G. S. . Aplicação do modelo algébrico PTT na solução numérica de escoamentos em um canal. In: Conferência Brasileira de Dinâmica, Controle e Aplicações, 2013, Fortaleza/CE. DINCON, 2013.

• DOLCI, D. I. ; HAM, D. . Integrating Checkpoint Schedules with an Algorithmic Differentiation. 2024. (Apresentação de Trabalho/Conferência ou palestra).

• DOLCI, D. I. . Full waveform inversion in Firedrake: checkpointing, sources and mesh parallelism. 2024. (Apresentação de Trabalho/Conferência ou palestra).

• DOLCI, D.I. . Adjoint-based gradient in Firedrake: memory management and ensemble reduced functional. 2024. (Apresentação de Trabalho/Conferência ou palestra).

• DOLCI, D. I. . Sensitivity Computations via Algorithmic Differentiation and Applications.. 2024. (Apresentação de Trabalho/Seminário).

• DOLCI, D. I. ; HAM, D. . A checkpoint schedules package for incremental of adjoint simulations. 2023. (Apresentação de Trabalho/Simpósio).

Outras produções

Projetos de pesquisa

• 2020 - 2023

  Desenvolvimento de técnicas numéricas e software para problemas de inversão com aplicações em processamento sísmico, Projeto certificado pelo(a) coordenador(a) Ernani Vitillo Volpe em 01/03/2023., Descrição: O objetivo principal do projeto STMI (do inglês, Software Technologies for Modelling and Inversion) é desenvolver um conjunto de tecnologias de software para simulação numérica e solução de problemas de inversão. Estas tecnologias serão capazes de reduzir o tempo necessário para o desenvolvimento de códigos de simulação e inversão de anos para dias. Serão desenhadas e implementadas linguagens de programação de alto nível que possibilitarão que geofísicos usem seus conhecimentos específicos de área para desenvolver e avaliar rapidamente novos algoritmos para obtenção de imagens de regiões geologicamente desafiadoras. Métodos de discretização em diferenças finitas e elementos finitos de alta ordem, que sejam otimizados para processamento sísmico, serão desenvolvidos, bem como técnicas de diferenciação automática para a geração automática dos modelos adjuntos. Outro foco do trabalho será atingir um maior nível de automatização na discretização espacial do domínio através da geração e adaptação de malhas, que é uma tarefa que atualmente consome muitas horas de trabalho humano. Por fim, modernas tecnologias de compiladores serão empregadas para gerar códigos altamente otimizados para plataformas de computação que irão de supercomputadores a sistemas na nuvem.. , Situação: Concluído; Natureza: Pesquisa. , Alunos envolvidos: Mestrado acadêmico: (1) Doutorado: (2) . , Integrantes: Daiane Iglesia Dolci - Integrante / CARMO, BRUNO S. - Coordenador / Ernani Vitillo Volpe - Integrante / Claus Naves Eikmeier - Integrante / SILVA, FELIPE A. G. - Integrante / PEIXOTO, PEDRO S. - Integrante., Financiador(es): Fundação de Apoio à Universidade de São Paulo - Bolsa.

• 2015 - Atual

  Adjoint-based stability and sensitivity analyses applied for fluid flow and fluid-structure interaction problems, Descrição: This research project focuses on numerical computations of adjoint-based stability and sensitivity analyses for fluid flow and fluid-structure interaction problems. Nektar++ was the software used in the simulations, which is based in Spectral/hp Element Method. New results of the adjoint-based sensitivity with respect to non-geometric variables (Reynolds number, inlet velocity and external forcing) for internal and external steady flows are introduced. To verify this methodology, comparisons with data obtained by other methods to provide sensitivity measures (like central finite difference) are performed. The adjoint method showed to be applicable to compute the quantitative sensitivities. For global linear analysis, adjoint-based stability and sensitivity methodology are first reviewed for fluid flow problems. Numerical simulations are carried out and verified for the flow around a fixed circular cylinder. Next, this thesis introduces a theoretical extension of stability and sensitivity analyses for fluid-structure interaction (FSI) systems. The displacement of the structure is governed by the linear mass-spring-damper equation, and the structure and flow equations are coupled using the non-inertial frame of reference method. The linearisation of the FSI system is carried out using the transpiration approach and the Newmark-beta solver is used to integrate the mass-spring-damper system in time. Stability and sensitivity analyses are carried out from generalised eigenvalues problems solved by the Arnoldi method. A review of the main recent results of linear stability analysis for an elastically-mounted cylinder is presented. Next, adjoint-based receptivity and sensitivity analyses are applied for this FSI problem. New sensitivity analyses with respect to external forcing are performed. In all the cases, comparisons with the sensitivity results for the flow around a fixed cylinder are made. The fields of receptivity and sensitivity show different configurations. Based on the results from the sensitivity analysis to a steady forcing, simulations of the flow subject to open-loop control are carried out. The steady forcing is proportional to the square of the base flow velocity, which is a forcing similar to the insertion of a small cylinder in the domain. The conclusion is that an elastically-mounted cylinder may respond differently than the fixed cylinder, where can happen cases in which the insertion of an external forcing at a point of the domain stabilises the flow system. On the other hand, this same forcing can induce a higher growth rate of the least stable mode of the FSI system. This thesis also investigates the character of the primary bifurcation for an oscillating elastically-mounted cylinder. Analysing the bifurcation around a critical Reynolds number, it is noticed that the nonlinear character of the bifurcation changes completely for some cases, when compared to what is observed for a fixed cylinder. In these cases, the bifurcation is subcritical, while for a fixed cylinder it is supercritical. Finally, this work introduces calculations of optimal energy growth not yet assessed for Reynolds number (Re) below of the primary instability of the fixed cylinder (Re < 47). In this case, the results are also compared with those obtained for a fixed cylinder.. , Situação: Em andamento; Natureza: Pesquisa. , Alunos envolvidos: Doutorado: (1) . , Integrantes: Daiane Iglesia Dolci - Integrante / Bruno Souza Carmo - Coordenador., Financiador(es): Conselho Nacional de Desenvolvimento Científico e Tecnológico - Bolsa.

Projetos de desenvolvimento

• 2020 - Atual

  SOFTWARE TECHNOLOGIES FOR MODELING AND INVERSION, WITH APPLICATIONS IN SEISMIC IMAGING, Descrição: The main objective of the STMI project (Software Technologies for Modelling and Inversion), is to develop a set of software technologies for numerical simulation and solution of inversion problems. These technologies will be capable of reducing the time required for the development of simulation and inversion codes from years to days. High-level programming languages are being designed and implemented in order to enable geophysicists to use their area-specific knowledge to rapidly develop and evaluate new algorithms for imaging geologically challenging regions. We employ discretization methods in high-order finite differences and finite elements, which are optimized for seismic processing, as well as techniques of automatic differentiation for the automatic generation of the adjoint models. Another focus of the work is to achieve a higher level of automation in the spatial discretization of the domain through the generation and adaptation of meshes, which is a task that currently consumes many hours of human work. Finally, modern compiler technologies are employed to generate highly optimized code for computing platforms from supercomputers to systems in the cloud.. , Situação: Em andamento; Natureza: Desenvolvimento. , Integrantes: Daiane Iglesia Dolci - Integrante / CARMO, BRUNO S. - Coordenador / Ernani Vitillo Volpe - Integrante / Claus Naves Eikmeier - Integrante.

• 2023 - Atual

  Firedrake: high performance, high productivity simulation for the continuum mechanics community., Descrição: This project will extend and enhance the Firedrake automated finite element simulation system to allow researchers across the field of continuum mechanics to simulate a wider range of physical phenomena using more sophisticated techniques than they would be able to code themselves, and to do so by specifying the simulation from highly productive mathematical interface embedded in Python.The simulation of continuous physical systems described by partial differential equations (PDEs) is a mainstay activity of computational science. This spans the integrity of structures, the efficiency of industrial processes built on fluid flow, and the propagation of electromagnetic waves from an antenna to name but a few.. , Situação: Em andamento; Natureza: Desenvolvimento. , Integrantes: Daiane Iglesia Dolci - Integrante / David A. Ham - Coordenador / Koki Sagiyama - Integrante.