Showing papers in "Computers & Fluids in 1992"

TL;DR: A multigrid method for solving the Euler equations as applied to non-structured meshes in two and three dimensions by using topological neighboring relations, applied to upwind solvers relying on the MUSCL methodology.

TL;DR: In this article, a simplified marker and cell (SMAC), a pressure implicit splitting of operators (PSIO), and an iterative time advancing scheme (ITA) are presented.

TL;DR: In this paper, the authors simulate solid particle transport by peristalsis in a two-dimensional channel with sinusoidal waves, where the fluid is regarded as viscous and incompressible, and the walls of the channel and the particle as neutrally buoyant elastic boundaries immersed in this fluid.

TL;DR: In this article, a study of liquid behavior in rectangular road containers undergoing a turning or braking manoeuvre is presented and discussed, where the steady-state solution in terms of liquid heights, forces and overturning moments is derived analytically from the hydrostatic equations.

TL;DR: In this paper, an efficient numerical method is proposed to obtain solutions of high accuracy in the vicinity of a free surface or in domains where there are large gradients in the hydrodynamic flow parameters.

TL;DR: In this paper, an adaptive algorithm for turbulent flows is proposed, which combines a combination of grid embedding and grid redistribution techniques, as appears to be necessary for efficient resolution of the small scales involved in viscous flows.

TL;DR: In this article, an upwind relaxation method to solve the three-dimensional Navier-Stokes equations for hypersonic flows is presented, where the implicit solution matrix is based on a linearization which reduces the work to compute the elements of the Jacobians and provides a robust scheme.

TL;DR: In this article, numerical experiments were performed to study the effects of the convective fluid motion of air enclosed between the annuli of eccentric horizontal cylinders, where the inner cylinder was assumed heated and rotating.

TL;DR: In this paper, an implicit finite-difference scheme based on the SMAC method for solving steady three-dimensional incompressible viscous flows is proposed, which is stable under correctly imposed boundary conditions, since the spurious error and numerical instabilities can be suppressed by satisfying the continuity condition identically, and by employing the staggered grid and the TVD upwind scheme.

TL;DR: In this paper, a finite difference solution on non-body-fitted Cartesian grids has been developed for the two-dimensional compressible Euler equations, based on the method of lines.

TL;DR: In this article, the effect of heat transfer on the spatial stability of compressible boundary layers is investigated using a formulation that accounts for variable-fluid properties of both the mean-flow and stability problems as well as a constant Prandtl number formulation.

TL;DR: In this article, a finite volume method in a boundary-fitted coordinate system together with a zonal grid method is employed to compute the flow field of a real-shape two-dimensional aortic bifurcation.

TL;DR: In this paper, scale analysis is used to remove acoustic waves from compressible flow with a large temperature variation, and an axisymmetric steady flow is obtained. But it is well known that time-dependent compressibility is ineffective at low Mach numbers.

TL;DR: In this article, a system of non-linear integral equations was developed to obtain the profiles of the free surfaces and the position of the sink or source in a region containing three homogeneus layers of fluid at different densities.

TL;DR: In this paper, the random choice method (RCM) was used to calculate non-linear wave propagation in gas-vapour-droplets mixtures, and the theoretical model of heterogeneous nucleation and droplet growth was discussed.

TL;DR: In this paper, a stochastic algorithm for the solution of the modelled scalar probability density function (PDF) transport equation for single-phase turbulent reacting flow is described, where Cylindrical symmetry is assumed.

TL;DR: In this article, a two-dimensional vortex sheet technique is proposed for computing mixing layer flow in the limit of infinite Reynolds number. But the method divides the vortex sheet into constant-strength linear elements, whose motions are computed using the Biot-Savart law.

TL;DR: In this article, an isothermal annular jet swell problem was analyzed using a control volume based finite difference scheme, which is also shown to be applicable to annular geometries as well.

TL;DR: In this paper, a shock-fitted multidomain spectral collocation method is used to solve both steady and unsteady inviscid supersonic flows over bodies.

TL;DR: In this article, the Harten-Yee second-order upwind TVD scheme was used to simulate an opposing sonic jet exhausting against a supersonic free stream of Mach number 3.

TL;DR: In this article, a solution-adaptive grid procedure is used to obtain solutions for turbulent flow over a backward-facing step, and comparisons with measurements demonstrate the superiority of solutionadaptive gridding over intuitive refinement of fixed grids.

TL;DR: In this paper, the authors analyzed the dust removal efficiency under the influence of the circulating flow and showed that inertial motion and diffusion play important roles in determining the motion of particles inside a bubble in a jet bubbling reactor.

TL;DR: The p-k modal flutter analyses for the SR-3 propeller model revealed that suitable combinations of the Fiber orientation can eliminate flutter without any weight penalties or strength penalties and that the flutter velocity is found to be sensitive to the interblade phase angle as well as the fiber orientation.

TL;DR: In this article, the effect of curvature on the stability and transition of three-dimensional incompressible flows is examined and the stability equations with and without curvature terms are solved with the temporal eigenvalue formulations used by Malik and Poll.

TL;DR: In this paper, a parabolic finite-volume procedure for the computation of viscous rotating flows having complex geometries has been developed to include the influence of the Coriolis force on pressure corrections.

TL;DR: In this article, an alternate approach for predicting incompressible, potential flow over closed bodies is presented, where triangular panels of linearly varying surface velocity are obtained by minimizing the flow through the body at control points subject to the constraint that the vortex field is divergenceless.