Hydromagnetic stability of plane Poiseuille flow of an Oldroyd fluidActa Mechanica - Tập 143 - Trang 155-164 - 2000
R. N. Ray, A. Samad, T. K. Chaudhury
The linear stability of plane Poiseuille flow of a conducting Oldroyd liquid in
the presence of a transverse magnetic field is studied. The fourth-order
Orr-Sommerfeld equation governing the stability analysis in this case is solved
numerically by a spectral method.
Computation of the bounds on the elastic moduli of a fiber-reinforced composite by Monte Carlo simulationsActa Mechanica - Tập 217 - Trang 257-267 - 2010
Chun-Ron Chiang
Bounds on the effective elastic moduli of a fiber-reinforced composite are
studied. The composite is composed of infinitely long, parallel, equal-sized
circular cylinders (fibers) randomly embedded in a matrix. Based on the
variational principles and by employing the cylindrical inclusion solutions as
trial functions, the bounds are determined through Monte Carlo simulations.
Comparisons are made ... hiện toàn bộ
Elasticity solutions for a transversely isotropic functionally graded annular sector plateActa Mechanica - Tập 228 - Trang 2603-2621 - 2017
J. L. Jiang, D. J. Huang, B. Yang, W. Q. Chen, H. J. Ding
This paper presents three-dimensional elasticity solutions for an annular sector
plate made of transversely isotropic functionally graded material (FGM)
subjected to concentrated forces $$\left( X,Y,0 \right) $$ or couples $$\left(
M_X,M_Y,M_Z\right) $$ applied at one of its radial edges. The elastic
coefficients can vary arbitrarily through the plate thickness. The analysis was
based on the assum... hiện toàn bộ
Nonequilibrium flow with condensationActa Mechanica - Tập 21 - Trang 65-91 - 1975
P. P. Wegener
Diabatic processes dominate compressible flows with phase change where the heat
of condensation or vaporization causes changes of enthalpy in the flow. The
equations of motion for condensing flows are given in analogy to those of
reacting flows and discontinuities are discussed. The nonequilibrium process of
condensation by homogeneous nucleation in the supersaturated state is singled
out by examp... hiện toàn bộ
A nonlinear hyperbolic free boundary value problemActa Mechanica - Tập 81 - Trang 221-226 - 1990
R. Fazio
The present paper is concerned with the application of a non-iterative
transformation method to the numerical solution of a nonlinear hyperbolic free
boundary value problem. Making use of the similarity analysis approach to the
hyperbolic model describing time dependent velocity impact to nonlinear
inhomogeneous thin rods we recover a free boundary value problem. Since exact
solutions are known on... hiện toàn bộ
Elastic Gaussian wave packets in isotropic mediaActa Mechanica - Tập 71 - Trang 95-114 - 1988
A. N. Norris
The theory of Gaussian wave packet (GWP) propagation in elastic materials is
developed. The GWP solutions are in the form of localized disturbances with
Gaussian spatial envelopes at any instant in time. The method is explicitly time
dependent, but is conceptually no more difficult than time harmonic ray theory.
The equations of propagation and evolution are very similar to those of
standard, elas... hiện toàn bộ
High-order lubrication theory in channels and tubes with variable geometryActa Mechanica - Tập 233 - Trang 4063-4081 - 2022
Kostas D. Housiadas, Christos Tsangaris
Lubrication theory is used widely due to its simplicity and accuracy in many
circumstances such as for the modeling of thin fluid films, the motion of
particles near surfaces, and the flow in narrow geometries and configurations.
Here, we present an extension to the classical lubrication theory to study the
laminar flow of an incompressible and highly viscous simple Newtonian fluid in
microfluidic... hiện toàn bộ