Reason-A Technical Journal (Formerly Reason-A Technical Magazine)

Arijit Dutta ¹, Biswajit Das ²

Affiliations
1 Mechanical Engineering Department, Kalyani Government College, Kalyani-741235, IN
2 Department of Mechanical Engineering, Kalyani Government College, Kalyani-741235, IN

Abstract

The work presents in this paper is related to comparison of laminar boundary layer thickness of flow of air over a horizontal flat plate at different points among Analytical, Experimental and Numerical approaches.

Keywords

Reynolds Number, Wind Tunnel, Staggered Grid, Marker and Cell Algorithm, Blasius Equation, Shooting Technique.

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Arijit Dutta ¹

Affiliations
1 Mechanical Engineering Department Kalyani Government Engineering College, Kalyani- 741 235, IN

Abstract

To design an outdoor mobile Robot is more challenging work than the indoor mobile Robot because it has to have capability of operation at all weather conditions and terrains. When it is a Serpentine Robot, it is more difficult to control its motion and path. Snake like robots are being made since 1972, but nowadays many researchers are trying to achieve a snake like robot without limb. Though various works were done and various technologies were invented, but there are many opportunities left.

Serpentine robot may be limbless or with limb. Biological snakes are pervasive across the world, for their various locomotion mode and physiology they are able to locomot in wide variety of terrains and environment. It will be excellent if one is able to capture this type of locomotion in a mechanical system. The aim of this paper is to summarize the work that has already been done in this field and emphasize on future work. This paper will help one understand the mechanism of serpentine locomotion and various snake gaits.

Keywords

Serpentine Robots (SR), Rectilinear Motion, Gaits.

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Arijit Dutta ¹

Affiliations
1 Department of Mechanical Engineering, Kalyani Government Engineering College, Kalyani- 741235, IN

Abstract

Grid transformation in systematic form is used to smooth the meshing process. Through proper steps an orthogonal grid system of the unit square is applied for simulation. The basic grid conversion method suggests mainly constructing explicitly coordinate changes with the help of trans!nite interpolation. In this regard, blending functions are quite important. These apply matching of the grid arrangements at the boundaries and for different interior surfaces of a particular domain. The aim of this present work is to explain speci!c techniques of algebraic grid transformation through trans!nite algorithm in 2 dimensional spaces. Few irregular but structured domains are converted into regular structured domains through trans!nite algorithm to apply them in different !elds.

Keywords

Structured Grid, Algebraic Transformation, Transfnite Algorithm, Interpolation.

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