The contribution is devoted to combined shape- and mesh-update strategies for parameter-free (CAD-free) shape optimization methods. Three different translate the sensitivities computed by adjoint procedures into simultaneous updates of both discretized domain are employed in combination with a mesh-morphing strategy. Considered methods involve linear Steklov–Poincaré (Hilbert space) approach, r...

The conventional differential quadrature (DQ) method is limited in its application to regular regions by using functional values along a mesh line to approximate derivatives. In this work, we extend the idea of DQ method to a general case. In other words, any spatial derivative is approximated by a linear weighted sum of all the functional values in the whole physical domain. The weighting coef...

We have obtained gram quantities of clean, viable eggs of Meloidogyne incognita by a method which combined treatment with hypochlorite and differential centrifugation. Chili pepper plants (Capsicum frutescens L.) infected with M. incognita were dug at harvest from a naturally infested field. Egg sacs from roots of 50 plants were obtained by kneading the washed roots in water and recovering the ...

The main objective of the present work is to modify the traditional mapping method for the simulation of distributive mixing of multiphase flows in geometries involving moving parts such as, internal mixers or twin-screw extruders without a limitation on their geometrical periodicity. The periodicity condition, limits the results of traditional mapping method to tracking mapping mesh between sp...

BACKGROUND The optimum method for inguinal hernia repair has not yet been determined. The recurrence rate for non-mesh methods varies between 0.2 and 33 per cent. The value of tension-free repair with prosthetic mesh remains to be confirmed. The aim of this study was to compare mesh and non-mesh suture repair of primary inguinal hernias with respect to clinical outcome, quality of life and cost...

In this paper we introduce a novel self-organizing method of moving surface reconstruction from the data obtained from measuring real-world objects. The core of the approach is using Kohonen’s Self Organizing Maps model. As that model is not traditionally applied to mesh deformation or surface reconstruction, in the paper we propose its modification enforcing input data approximation and time-s...

In this article, we introduce a new formalism for mesh geometry prediction. We derive a class of smooth linear predictors from a simple approach based on the Taylor expansion of the mesh geometry function. We use this method as a generic way to compute weights for various linear predictors used for mesh compression and compare them with those of existing methods. We show that our scheme is actu...

We present a coupled moving mesh and level set method for computing incom5 pressible two-phase flow with surface tension. This work extends a recent work 6 of Di et al. [(2005). SIAM J. Sci. Comput. 26, 1036–1056] where a moving 7 mesh strategy was proposed to solve the incompressible Navier–Stokes equa8 tions. With the involvement of the level set function and the curvature of the 9 interface,...

tion, which is often called a reaction–convection–diffusion equation, is representative of many problems which are It is well known that moving mesh and upwinding schemes are two kinds of techniques for tracking the shock or steep wave front solved by moving mesh methods in one dimension. in the solution of PDEs. It is expected that their combination should Much work has been devoted to the con...