The meshless local radial point interpolation (MLRPI) method is applied to examine the magnetohydrodynamic (MHD) ow of third grade uid in a porous medium. The uid saturates the porous space between the two boundaries. Several limiting cases of fundamental ows can be obtained as the special cases of present analysis. The variations of pertinent parameters are addressed.

Fluid particle dynamics: a synthesis of dissipative particle dynamics and smoothed particle dynamics Pep Espa~ nol() (received ; accepted) PACS. 47.11+j { Computational methods in uid mechanics. Abstract. { We present a generalization of dissipative particle dynamics that includes shear forces between particles. The new algorithm has the same structure as the (isothermal) smoothed particle dyna...

The shear viscosity of a suspension of deformable bubbles dispersed within a Newtonian ̄uid is calculated as a function of the shear rate and strain. The relative importance of bubble deformation in the suspension is characterized by the capillary number (Ca), which represents the ratio of viscous and surface tension stresses. For small Ca, bubbles remain nearly spherical, and for suf®ciently l...

A good mesh moving method is an important part of ?ow computations with moving-mesh methods like the space–time (ST) and Arbitrary Lagrangian–Eulerian (ALE) methods. With a method, we can decrease remeshing frequency even when ?uid–solid ?uid–?uid interfaces undergo large displacements, element distortion in parts domain where care about solution accuracy more, maintain quality boundary layer m...

the meshless local radial point interpolation (mlrpi) method is applied to examine the magnetohydrodynamic (mhd) ow of third grade uid in a porous medium. the uid saturates the porous space between the two boundaries. several limiting cases of fundamental ows can be obtained as the special cases of present analysis. the variations of pertinent parameters are addressed.

We describe a two-level hierarchical three-dimensional numerical code designed to simulate the formation of galaxies and other larger scale structures in an expanding universe with Newtonian gravity and radiative cooling. The basis of the hierarchical code is a standard particle-mesh (PM) algorithm used to evolve the dark matter constituents and an ideal nonrelativistic MHD uid solver to evolve...

Background: The airway surface liquid (ASL), which is a ï‌‚uid layer coating the interior epithelial surface of the bronchi and bronchiolesis, plays an important defensive role against foreign particles and chemicals entering lungs.Objective: Numerical investigation has been employed to solve two-layer model consisting of mucus layer as a viscoelastic fluid and periciliary liquid layer as a New...

The innuence of an elastic component of the rheological properties of the coating suspension on the coating ow in the blade coating process was investigated by numerical methods. The Giesekus model was used as the constitutive equation for the coating uid (coating colour). The system of time-dependent partial diierential equations was solved numerically by dis-cretising the solution with nite d...

We consider laminar mixing in a steady incompressible Newtonian uid. Through the use of particle tracking methods and analogous techniques applicable to material element vectors on a given velocity eld, residence time distributions, Poincare maps and material element deformations are computed; all of which are useful tools in determining the eecacy of a mixing system. We analyse the accuracy of...