Douglas Daniel de Carvalho

@fem.unicamp.br

Postdoctoral Researcher / Faculty of Mechanical Engineering
University of Campinas

Douglas Daniel de Carvalho


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https://researchid.co/carvalho47

RESEARCH, TEACHING, or OTHER INTERESTS

Mechanical Engineering, Physiology
2

Scopus Publications

69

Scholar Citations

5

Scholar h-index

3

Scholar i10-index

Scopus Publications

  • Magnetization diffusion in duct flow: The magnetic entrance length and the interplay between hydrodynamic and magnetic timescales
    Douglas Daniel de Carvalho, Rafael Gabler Gontijo
    Physics of Fluids, 2020
    In this work, computational fluid dynamics simulations of a ferrofluid plane Poiseuille flow in the presence of a constant applied magnetic field are performed. The orientation of the field is perpendicular to the direction of the flow. An original numerical methodology for calculating magnetic and hydrodynamic fields is proposed, including an important discussion about an identified magnetization entrance region. Three different magnetization models are considered to calculate the magnetization field. These models are implemented and validated according to analytic and asymptotic theories, including the one developed in this manuscript. Discrepancies between the models are discussed and interpreted physically. An intricate balance between different physical mechanisms is shown to be responsible for a diffusive-like behavior of the magnetization field. This balance is governed by a competition between the flow’s vorticity and the mechanisms of magnetic relaxation. The physical parameters responsible for this non-equilibrium magnetization dynamics are identified and interpreted using the problem’s timescales. It seems that the combination of three different timescales governs the dynamics of non-equilibrium magnetization: the Brownian diffuse timescale, a hydrodynamic (convective) timescale, and a controllable magnetic timescale associated with the intensity of the applied magnetic field. The results indicate toward the possibility of controlling the development of the flow’s magnetization field through the applied magnetic field, particle size distribution, fluid concentration, and flow rate. In addition, several results are presented regarding the fully developed flow, including magnetization profiles and angles between the applied field H and the magnetization field M.
  • Analysis of magnetic fluid displacement in capillaries
    Douglas Daniel de Carvalho, Francisco Ricardo Cunha, Rafael Gabler Gontijo
    Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2020

RECENT SCHOLAR PUBLICATIONS

  • Cratering by the oblique impact of a spinning projectile
    DD Carvalho, EM Franklin
    Physical Review E 113 (3), 035412 , 2026
    2026.0
  • Dataset related to the article" Collaborative behavior of intruders moving amid grains" and the Thesis" Motion of intruders in granular media"
    DD Carvalho, EM Franklin
    de Carvalho, Douglas Daniel , 2025
    2025.0
  • Dataset related to the article" Contacts, motion, and chain breaking in a two-dimensional granular system displaced by an intruder" and the Thesis" Motion of intruders in …
    DD Carvalho, NC Lima, EM Franklin
    Carvalho, Douglas Daniel de , 2025
    2025.0
  • Dataset related to the article" Impact craters formed by spinning granular projectiles" and the thesis" Motion of intruders in granular media"
    DD Carvalho, NC Lima, EM Franklin
    Carvalho, Douglas Daniel de , 2025
    2025.0
  • Drag reduction during the side-by-side motion of a pair of intruders in a granular medium
    DD Carvalho, Y Bertho, A Seguin, EM Franklin, BD Texier
    Physical Review Fluids 9 (11), 114303 , 2024
    2024.0
    Citations: 4
  • Penetration of a spinning sphere impacting a granular medium
    DD Carvalho, Y Bertho, EM Franklin, A Seguin
    Physical Review E 109 (5), 054902 , 2024
    2024.0
    Citations: 4
  • Motion of intruders in granular media
    DD de Carvalho
    Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Mecânica , 2024
    2024.0
  • Impact craters formed by spinning granular projectiles
    DD Carvalho, NC Lima, EM Franklin
    Physical Review E 108 (5), 054904 , 2023
    2023.0
    Citations: 7
  • Roles of packing fraction, microscopic friction, and projectile spin in cratering by impact
    DD Carvalho, NC Lima, EM Franklin
    Physical Review E 107 (4), 044901 , 2023
    2023.0
    Citations: 13
  • Collaborative behavior of intruders moving amid grains
    DD Carvalho, EM Franklin
    Physics of Fluids 34 (12) , 2022
    2022.0
    Citations: 10
  • Cooperative motion of intruders amid smaller grains
    D Carvalho, E Franklin
    Bulletin of the American Physical Society 67 , 2022
    2022.0
  • Cratering by impact
    D Carvalho, N Lima, E Franklin
    Bulletin of the American Physical Society 67 , 2022
    2022.0
  • Contacts, motion, and chain breaking in a two-dimensional granular system displaced by an intruder
    DD Carvalho, NC Lima, EM Franklin
    Physical Review E 105 (3), 034903 , 2022
    2022.0
    Citations: 8
  • Reconstructing a continuous magnetization field based on local vorticity cells, CFD and Langevin dynamics: A new numerical scheme
    DD de Carvalho, RG Gontijo
    Journal of Magnetism and Magnetic Materials 514, 167135 , 2020
    2020.0
    Citations: 4
  • Magnetization diffusion in duct flow: The magnetic entrance length and the interplay between hydrodynamic and magnetic timescales
    DD de Carvalho, RG Gontijo
    Physics of Fluids 32 (7) , 2020
    2020.0
    Citations: 17
  • Non-equilibrium magnetization dynamics in ferrofluids subjected to quadratic flows= Dinâmica de magnetização de não equilíbrio em ferrofluidos sujeitos a escoamentos quadráticos
    DD de Carvalho
    [sn] , 2020
    2020.0
  • Analysis of magnetic fluid displacement in capillaries
    DD de Carvalho, FR Cunha, RG Gontijo
    Journal of the Brazilian Society of Mechanical Sciences and Engineering 42 … , 2020
    2020.0
    Citations: 2
  • Cooperation between two objects moving side-by-side in a granular medium
    DD Carvalho, Y Bertho, A Seguin, EM Franklin, BD Texier
  • Non-equilibrium magnetization dynamics in ferrofluids subjected to quadratic flows
    DD DE CARVALHO
  • ENCIT-2018-0039 ANALYSIS OF MAGNETIC FLUID DISPLACEMENT IN CAPILLARIES
    DD de Carvalho, RG Gontijo, FR da Cunha

MOST CITED SCHOLAR PUBLICATIONS

  • Magnetization diffusion in duct flow: The magnetic entrance length and the interplay between hydrodynamic and magnetic timescales
    DD de Carvalho, RG Gontijo
    Physics of Fluids 32 (7) , 2020
    2020.0
    Citations: 17
  • Roles of packing fraction, microscopic friction, and projectile spin in cratering by impact
    DD Carvalho, NC Lima, EM Franklin
    Physical Review E 107 (4), 044901 , 2023
    2023.0
    Citations: 13
  • Collaborative behavior of intruders moving amid grains
    DD Carvalho, EM Franklin
    Physics of Fluids 34 (12) , 2022
    2022.0
    Citations: 10
  • Contacts, motion, and chain breaking in a two-dimensional granular system displaced by an intruder
    DD Carvalho, NC Lima, EM Franklin
    Physical Review E 105 (3), 034903 , 2022
    2022.0
    Citations: 8
  • Impact craters formed by spinning granular projectiles
    DD Carvalho, NC Lima, EM Franklin
    Physical Review E 108 (5), 054904 , 2023
    2023.0
    Citations: 7
  • Drag reduction during the side-by-side motion of a pair of intruders in a granular medium
    DD Carvalho, Y Bertho, A Seguin, EM Franklin, BD Texier
    Physical Review Fluids 9 (11), 114303 , 2024
    2024.0
    Citations: 4
  • Penetration of a spinning sphere impacting a granular medium
    DD Carvalho, Y Bertho, EM Franklin, A Seguin
    Physical Review E 109 (5), 054902 , 2024
    2024.0
    Citations: 4
  • Reconstructing a continuous magnetization field based on local vorticity cells, CFD and Langevin dynamics: A new numerical scheme
    DD de Carvalho, RG Gontijo
    Journal of Magnetism and Magnetic Materials 514, 167135 , 2020
    2020.0
    Citations: 4
  • Analysis of magnetic fluid displacement in capillaries
    DD de Carvalho, FR Cunha, RG Gontijo
    Journal of the Brazilian Society of Mechanical Sciences and Engineering 42 … , 2020
    2020.0
    Citations: 2
  • Cratering by the oblique impact of a spinning projectile
    DD Carvalho, EM Franklin
    Physical Review E 113 (3), 035412 , 2026
    2026.0
  • Dataset related to the article" Collaborative behavior of intruders moving amid grains" and the Thesis" Motion of intruders in granular media"
    DD Carvalho, EM Franklin
    de Carvalho, Douglas Daniel , 2025
    2025.0
  • Dataset related to the article" Contacts, motion, and chain breaking in a two-dimensional granular system displaced by an intruder" and the Thesis" Motion of intruders in …
    DD Carvalho, NC Lima, EM Franklin
    Carvalho, Douglas Daniel de , 2025
    2025.0
  • Dataset related to the article" Impact craters formed by spinning granular projectiles" and the thesis" Motion of intruders in granular media"
    DD Carvalho, NC Lima, EM Franklin
    Carvalho, Douglas Daniel de , 2025
    2025.0
  • Motion of intruders in granular media
    DD de Carvalho
    Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Mecânica , 2024
    2024.0
  • Cooperative motion of intruders amid smaller grains
    D Carvalho, E Franklin
    Bulletin of the American Physical Society 67 , 2022
    2022.0
  • Cratering by impact
    D Carvalho, N Lima, E Franklin
    Bulletin of the American Physical Society 67 , 2022
    2022.0
  • Non-equilibrium magnetization dynamics in ferrofluids subjected to quadratic flows= Dinâmica de magnetização de não equilíbrio em ferrofluidos sujeitos a escoamentos quadráticos
    DD de Carvalho
    [sn] , 2020
    2020.0
  • Cooperation between two objects moving side-by-side in a granular medium
    DD Carvalho, Y Bertho, A Seguin, EM Franklin, BD Texier
  • Non-equilibrium magnetization dynamics in ferrofluids subjected to quadratic flows
    DD DE CARVALHO
  • ENCIT-2018-0039 ANALYSIS OF MAGNETIC FLUID DISPLACEMENT IN CAPILLARIES
    DD de Carvalho, RG Gontijo, FR da Cunha