Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Costică Moroşanu"'
Publikováno v:
AppliedMath, Vol 4, Iss 1, Pp 289-304 (2024)
In this work, we investigate isothermal MHD motions of a large class of rate type fluids through a porous medium between two infinite horizontal parallel plates when a differential expression of the non-trivial shear stress is prescribed on the bound
Externí odkaz:
https://doaj.org/article/2d281b56e5aa4342abcea05bacd613d5
Publikováno v:
Dynamics, Vol 3, Iss 4, Pp 803-819 (2023)
In this paper, exact analytical expressions are derived for dimensionless steady-state solutions corresponding to the modified Stokes’ problems for incompressible generalized Burgers’ fluids, considering the influence of porous and magnetic effec
Externí odkaz:
https://doaj.org/article/b5311ee8ae764c86a33f91d451c03d9a
Publikováno v:
Mathematics, Vol 12, Iss 13, p 2050 (2024)
A qualitative study for a second-order boundary value problem with local or nonlocal diffusion and a cubic nonlinear reaction term, endowed with in-homogeneous Cauchy–Neumann (Robin) boundary conditions, is addressed in the present paper. Provided
Externí odkaz:
https://doaj.org/article/77503e2e20134e25aebf0d741ffb8c18
Publikováno v:
Axioms, Vol 13, Iss 5, p 286 (2024)
The paper concerns a nonlinear second-order system of coupled PDEs, having the principal part in divergence form and subject to in-homogeneous dynamic boundary conditions, for both θ(t,x) and φ(t,x). Two main topics are addressed here, as follows.
Externí odkaz:
https://doaj.org/article/42697af5ef6749b59665c3af2e33190f
Publikováno v:
Symmetry, Vol 16, Iss 4, p 425 (2024)
The time-periodic plane Poiseuille flow of electrically conducting incompressible generalized Burgers fluids through a porous medium is analytically and numerically investigated in the presence of a transverse uniform magnetic field. The main purpose
Externí odkaz:
https://doaj.org/article/03bc1ec5d55c4ce0af4e5d296ed46265
Publikováno v:
Axioms, Vol 12, Iss 12, p 1098 (2023)
Here, we consider the phase field transition system (a nonlinear system of parabolic type) introduced by Caginalp to distinguish between the phases of the material that are involved in the solidification process. We start by investigating the solvabi
Externí odkaz:
https://doaj.org/article/6d356c472c014867b42cbdfcedb37ee7
Publikováno v:
Symmetry, Vol 15, Iss 9, p 1683 (2023)
Closed-form expressions have been obtained to characterize the non-dimensional velocity and corresponding non-trivial shear stress in the context of two magnetohydrodynamic (MHD) motions exhibited by incompressible generalized Burgers’ fluids. Thes
Externí odkaz:
https://doaj.org/article/c4b605cf74474491ae948296433b38d7
Autor:
Constantin Fetecau, Costică Moroşanu
Publikováno v:
Symmetry, Vol 15, Iss 6, p 1269 (2023)
The main purpose of this work is to completely solve two motion problems of some differential type fluids when velocity or shear stress is given on the boundary. In order to do that, isothermal MHD motions of incompressible second grade fluids over a
Externí odkaz:
https://doaj.org/article/3612b65a8bbf4c1db6de6f4486012324
Autor:
Constantin Fetecău, Costică Moroşanu
Publikováno v:
Axioms, Vol 12, Iss 4, p 406 (2023)
Two main topics are addressed in the present paper, first, a rigorous qualitative study of a second-order reaction–diffusion problem with non-linear diffusion and cubic-type reactions, as well as inhomogeneous dynamic boundary conditions. Under cer
Externí odkaz:
https://doaj.org/article/a2c8175590954218979bddd8ffe48190
Autor:
Costică Moroşanu
Publikováno v:
AIMS Mathematics, Vol 4, Iss 3, Pp 648-662 (2019)
Here we consider the phase field transition system (a nonlinear system of parabolic type), introduced by G. Caginalp to distinguish between the phases of the material that is involved in the solidification process. On the basis of the convergence of
Externí odkaz:
https://doaj.org/article/121cd319b23549768ce34ada52eff75b