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Frequency: 12 issues per year
ISSN: 2250–3005 (online version)
Published by: IJCER
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International Journal of Computational Engineering Research

(IJCER)

 

Articles

 

Research Article  open access
Existence and Stability of the Equilibrium Points in the Photogravitational Magnetic Binaries Problem When the Both Primaries Are Oblate Spheriods
Mohd Arif
India
Paper Indexed : : 03.3005/0610109
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 01 (January 2016)

Abstract

In this article we have discussed the equilibrium points in the photogravitational magnetic binaries problem when the bigger primary is a oblate spheroid and source of radiation and the small primary is a oblate body and have investigated the stability of motion around these points.

Keywords: magnetic binaries problem, source of radiation, stability, equilibrium points, restricted three body problem, oblate body.

Research Article  open access
A Paper on Problems Generated By Junk Food in India
Shuchi Dave || Aditi Jain
India
Paper Indexed : : 03.3005/06101020
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 01 (January 2016)

Abstract

India "The Land of Rich Heritage and Culture" with its vast food variety is now at the verge of declining its food habits. Moreover, the food which is common among youth is "JUNK FOOD". Junk food is a pejorative term for food containing high levels of calories, salts and fats with little protein, vitamins or minerals. They have a significant impact on student's diet and weight as many students consume more than half of their daily calories as junk food in canteens of schools and colleges. According to WHO (World Health Organization) reports, in India, more than 3% of the population is in the obese category. Obesity is an emerging major public health problem throughout the world among adolescents. Excess consumption of junk food leads to the wide variety of health disorders like obesity, food poisoning, dental diseases and many more included angina pectoris, stroke, depression, diabetes, asthma etc. all of which sometimes contribute to premature death of an individual. This paper is concern about the obesity crisis in India which can be reduced by developing more and more educated society, implementing strong nutritional standards in schools and colleges, decreasing the advertising rates of junk food and some changes in the government tax policy. All these points are used as an instrument to discourage consumption of unhealthy foods such as sodas and junk food. This paper uses a basic method of optimization techniques i.e. simplex method to optimize or minimize the consumption of junk food in schools and colleges.

Keywords: Simplex method, data on junk food, some other studies on junk food & analysis by different mathematical methods, etc.. Introduction

Research Article  open access
Information Model and Its Element for Displaying Information on Technical Condition of Objects of Integrated Information System
Anna Kovalenko || Alexey Smirnov || Alexander Kovalenko || Alexander Dorensky
Ukraine
Paper Indexed : : 03.3005/061021027
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 01 (January 2016)

Abstract

The suggested information elements for the system of information display of the technical condition of the integrated information system meet the essential requirements of the information presentation. They correlate with the real object simply and very accurately. The suggested model of information display of the technical condition of the objects of integrated information system improves the efficiency of the operator of technical diagnostics in evaluating the information about the technical condition of the integrated information system .

Keywords: evaluation of technical condition, integrated information system, information model, technical diagnostics.

Research Article  open access
EOQ Inventory Models for Deteriorating Item with Weibull Deterioration and Time-Varying Quadratic Holding Cost
Naresh Kumar Kaliraman || Ritu Raj || DrShalini Chandra || Dr Harish Chaudhary
India
Paper Indexed : : 03.3005/061028051
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 01 (January 2016)

Abstract

This paper develops an EOQ inventory model for deterioratingitemswith two parameters Weibull deterioration. Shortages are permissible andpartially backlogged. In this model we consider time varying quadratic holding cost and ramp-type demand. The model is developed under two different replenishment policies: (i) Starting with no shortages (ii) Starting with shortages.The aim of this study is to find the optimal solutiontominimizing the total inventory costs for both the above mentioned strategies. To elevate the model a numerical example has been carried out and a sensitivity analysis occurred to study the result of parameters on essential variables and the entire cost of this model.

Keywords: Inventory, Partial Backlogging, Quadratic Holding Cost, Ramp-Type Demand, Single Item, Shortages, Weibull Deterioration

Research Article  open access
Effect on heat transfer for laminar flow over Backward Facing Step with square cylinder placed inside using Higher Order Compact Scheme
KarumanchiViswanatha Sarma || N Sekarapandian || S Vengadesan || Y V S S Sanyasiraju
India
Paper Indexed : : 03.3005/061052059
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 01 (January 2016)

Abstract

The purpose of this paper is to study the influence of an adiabatic square cylinder on the heat transfer enhancement in the 2D laminar flow over the Backward Facing Step (BFS). This work also studies the effect of streamwise position of the square cylinder on heat transfer enhancement. The governing equations, for the 2D laminar flow over BFS with a square cylinder placed inside, are solved on non-uniform Cartesian grid using projection method. The individual differential terms of the N-S equations are discretized using a Higher Order Compact Scheme (HOCS). The numerical code is first validated with the results available in the literature. The main advantage of HOCS is to obtain higher order approximations to the derivatives accurately without the necessity of higher number of nodes. Thus reducing the computational cost. It is observed from the numerical experiment that placing the cylinder affects the fluid flow and heat transfer and for XC=1.4, YC = 1.0 and Re= 200, there is a maximum heat transfer enhancement of 193.93%.The results of these numerical experiments are useful in studying the heat transfer enhancement and its dependence on the bluff body and flow characteristics. This work has its applications in engineering problems where the heat transfer in a laminar flow regime can be enhanced using a bluff body. The current work also demonstrates the dependence of horizontal position of cylinder on heat transfer augmentation.

Keywords: Backward Facing Step, Square cylinder, Heat transfer enhancement, Higher Order Compact Scheme, Location of the cylinder;

Research Article  open access
Description of condensation and evaporation processes in cylindrical-type porous materials employing dual site-bond model
Ubaldo Gil Cruz || Luis G. Bermudez Rodriguez || Israel Ibarra Solís || Isis Rodriguez Sanchez || Alonso Salazar Garibay
México
Paper Indexed : : 03.3005/061060064
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 01 (January 2016)

Abstract

Cylindrical-type porous materials such as MCM-41 and SBA-15 substrata have been the subject of intensive research. Nevertheless, a profound and unifying study concerning the effects of surface heterogeneity and networking effects are still lacking. This research aims to connect experimental results from adsorption data, specifically Pore-Size Distributions, with a theory describing porous space organization in terms of Pore-size heterogeneity and networking effects.

Keywords: Pore Distribution, DSBM, Site Pore, Bond Pore, Mesoporous, Molecular Dynamics, Fixed Network