Walber Ferreira Braga

@unila.edu.br

Energy Engineering
Federal University of Latin-American Integration



           

https://researchid.co/walber.braga

RESEARCH, TEACHING, or OTHER INTERESTS

Energy Engineering and Power Technology, Renewable Energy, Sustainability and the Environment, Mechanical Engineering, Computational Mechanics

9

Scopus Publications

Scopus Publications

  • Temperature profiles for diffusion problem precise solutions using heat balance integral method



  • Analytical solution to predict laser ablation rate in a graphitic target
    R. Marchiori, W. F. Braga, M. B. H. Mantelli, and A. Lago
    Springer Science and Business Media LLC

  • Analytical solution for one-dimensional finite heat conduction problem with heat balance integral method


  • Analytical solution for one-dimensional semi-infinite heat transfer problem with convection boundary condition
    Walber Braga, Marcia Mantelli, and João Azevedo
    American Institute of Aeronautics and Astronautics

  • A new approach for the heat balance integral method applied to heat conduction problems
    Walber Braga, Marcia Mantelli, and João Azevedo
    American Institute of Aeronautics and Astronautics
    In the present paper, the heat conduction problem for the semi-infinite solid, with prescribed temperature and heat flux boundary conditions is solved. The Heat Balance Integral Method, based on an n exponent temperature profile is applied. One of the main concerns of this work is the determination of the parameter n, obtained using an energy balance in the solid. The literature classical solutions (Carslaw and Jaeger, 1959), were used in the comparison with temperature distributions obtained for several different values of n profiles, showing that the parameters selected in the present paper are the best ones. Different values were obtained for the prescribed heat flux and for the prescribed temperature boundary condition problems. The results obtained are useful for the design of the thermal protection systems in reentry space vehicles.

  • Approximate analytical solution for one-dimensional finite ablation problem with time-constant heat flux


  • Approximate analytical solution for one-dimensional ablation problem with time-variable heat flux


  • Eletrical analogy modeling for one-dimensional ablation problem