Construction of second derivative diagonally implicit multistage integration methods (SDIMSIMs) as a subclass general linear with Runge–Kutta stability property requires to generate the corresponding conditions depending parameters methods. These which are system polynomial equations can not be produced by symbolic manipulation packages for order p ≥ 5. In this paper, we describe an approach co...

This research includes of the numerical modeling of fluids in two-dimensional cavity. The cavity flow is an important theoretical problem. In this research, modeling was carried out based on an alternating direction implicit via Vorticity-Stream function formulation. It evaluates different Reynolds numbers and grid sizes. Therefore, for the flow field analysis and prove of the ability of the sc...

A parallel implementation for a multi-implicit Runge-Kutta method (MIRK) with real eigenvalues is decribed. The parallel method is analysed and the algorithm is devised. For the problem with d domains , the amount of work within the s-stage MIRK method, associated with the solution of system, is proportional to (sd) 3 , in contrast to the simple implicit nite diierence method (IFD) where the am...

according to interactions in multiple grade classes, the present study aims to compare different class compositions in three different groups of fourth-grade multiple grade students in implicit learning and academic achievement. statistical population consists of all fourth grade public elementary school students in piranshahr. 3 groups of students including 8 girls and 8 boys were randomly sel...

The clamp band joint (CBJ) is a multi-component and complex device for connecting separating satellites from launch vehicles. In this article, the pre-tightening connection process are analysed sequentially through an implicit–explicit calculation method. Because of time-consuming nonlinear analysis, constrained sequential approximate optimization (CSAO) method in irregular design domain propos...

in this paper we investigate a nonlinear evolution model described by the rosenau-kdv equation. we propose a three-level average implicit finite difference scheme for its numerical solutions and prove that this scheme is stable and convergent in the order of o(τ2 + h2). furthermore we show the existence and uniqueness of numerical solutions. comparing the numerical results with other methods in...

in this paper an efficient dual time implicit approach is used to solve viscous laminar flow around two bodies with general motion. therefore, the grid includes a background grid and two sets of grids around the moving bodies. rotational and translational motions of two bodies are managed separately in this grid arrangement. in this work the overset concept for hybrid grid is used and flow vari...

INCREMENT INTERFACE Increment; ATTRIBUTES Errors:SET OF ERRORS; expanded:BOOLEAN; father: Increment; doc_ver: DocumentVersion; END ATTRIBUTES; END ABSTRACT INCREMENT INTERFACE Increment. TERMINAL INCREMENT INTERFACE ClassIdentifier; INHERIT Increment; REGULAR EXPRESSION {[A−Za−z][A−Za−z0−9_]*} END REGULAR EXPRESSION; SEMANTIC RELATIONSHIPS IMPLICIT Constructors:SET OF Constructor.Constructs; IM...

Fractional order diffusion equations are generalizations of classical diffusion equations which are used to model in physics, finance, engineering, etc. In this paper we present an implicit difference approximation by using the alternating directions implicit (ADI) approach to solve the two-dimensional space-time fractional diffusion equation (2DSTFDE) on a finite domain. Consistency, unconditi...