Dragonfly algorithm (DA) is a novel swarm intelligence meta-heuristic optimization algorithm inspired by the dynamic and static swarming behaviors of artificial dragonflies in nature. It has proved its effectiveness and superiority compared to several well-known meta-heuristics available in the literature. This paper presents a comprehensive review of DA and its new variants classified into modified and hybrid versions. It also describes the main diverse applications of DA in several fields and areas such as machine learning, neural network, image processing, robotics, and engineering. Finally, the paper suggests some possible interesting research on the applications and hybridizations of DA for future works.

Dragonfly algorithm: a comprehensive review and applications

For analysis of physical properties of different materials, rectangular porous fins are used to examine the heat transformation through a system. In this paper, a metaheuristic is combined with neural computing modelling to study the effects of temperature changes in a porous fin model. Cuckoo search algorithm is used as an efficient optimization technique to find the best weights to reduce the mean squared error in the required temperature profile. The governing partial differential equation is converted into a non-linear ordinary differential equation subject to certain boundary conditions. Two individual cases, of silicon nitride ( Si 3 N 4 ) and Aluminium (Al), are considered. In the proposed procedure, the Cuckoo Search(CS) algorithm is combined with the artificial neural network (ANN), namely CS-ANN, to solve the differential equations and obtain solutions with better accuracy.

A study of changes in temperature profile of porous fin model using cuckoo search algorithm

The subject of the paper is a description of a simple test from the field of terminal ballistics and the handling of issues arising during its simulation using the numerical techniques of the finite element method. With regard to the possible excessive reshaping of the finite element mesh there is a danger that problems will arise such as the locking of elements or the appearance of negative volumes. It is often necessary to introduce numerical extensions so that the simulations can be carried out at all. When examining local damage to structures, such as the penetration of the outer shell or its perforation, it is almost essential to introduce the numerical erosion of elements into the simulations. However, when using numerical erosion, the dissipation of matter and energy from the computational model occurs in the mathematical background to the calculation. It is a phenomenon which can reveal itself in the final result when a discrepancy appears between the simulations and the experiments. This issue can be solved by transforming the eroded elements into smoothed particle hydrodynamics particles. These newly created particles can then assume the characteristics of the original elements and preserve the matter and energy of the numerical model.

https://downloads.hindawi.com/journals/sv/2016/4593749.pdf

Improved Element Erosion Function for Concrete-Like Materials with the SPH Method

In this paper, we use the modified decomposition method (MADM), a recent mathematical technique to find closed-form solutions of the singular nonlinear heat transfer equation of a longitudinal triangular moving fin when all the thermal parameters vary with the temperature. The energy balance equation for the triangular moving fin is solved using the MADM. The results are compared with those obtained using the differential transform method and numerical solutions obtained using the spectral quasi-linearization method. The effects of the various thermo-physical parameters, such as thermal conductivity parameter, power exponent of heat transfer coefficient, surface emissivity parameter, convection–conduction parameter, radiation–conduction parameter, convection sink temperature, radiation sink temperature, heat generation parameter, and the Peclet Number on the temperature distribution and, therefore, energy transfer efficiency are analyzed.

A Modified Decomposition Solution of Triangular Moving Fin with Multiple Variable Thermal Properties

Nowadays, with the development of heat transfer in various industrial fields, like as electrical and mechanical fields, we see the more effect of fins in this improvement. The computational price is hidden term of optimizing that can be included of CPU time and material optimizing can be included to modify the profile of fins. So in this paper have been investigated the heat transfer of fins with different profile (Convex, Concave, Triangular, Rectangular) in unsteady condition. The differential transform method (DTM) has been employed to solve this problem due in addition investigation of differences of temperature in fins, computational space become lesser. The boundary conditions are insulated tip with limited length and the thermal functions have been assumed for coefficient of heat transfer and conductivity. Then has been investigated the effect of relationship parameters like as ( e , β , θ , M ). In unsteady condition these parameters are limited to one number that is useful in making optimum number. When β are increasing the temperate plot going in the upper level that show the efficiency going upper. In unsteady condition this parameter is limited to one number that it is very important for optimization by to build fins.

Analysis of unsteady heat transfer of specific longitudinal fins with Temperature-dependent thermal coefficients by DTM

An approximate analytical solution method for thermal stresses in an annular fin with variable thermal conductivity is presented. Homotopy perturbation method (HPM) is employed to estimate the non-dimensional temperature field by solving nonlinear heat conduction equation. The closed-form solutions for the thermal stresses are formulated using the classical thermoelasticity theory coupled with HPM solution for temperature field. The plane state of stress conditions are considered in this study. The effects of thermal parameters such as variable thermal conductivity parameter (β), thermogeometric parameter (K), and the non-dimensional coefficient of thermal expansion (χ) on the temperature field and stress field are studied. The results for temperature field and stress field obtained from HPM-based solution are found to be in very close agreement with the results available in literature. Furthermore, the HPM solution is found to be very efficient and handles nonlinear heat transfer equation with greater co...

Homotopy Perturbation Method for Thermal Stresses in an Annular Fin with Variable Thermal Conductivity

Local impact effects on concrete target due to missile: An empirical and numerical approach

In this work, application of the homotopy perturbation method (HPM) and an inverse solution for estimating unknown thermal parameters such as the variable thermal conductivity parameter (β), the thermogeometric parameter (K), and the nondimensional coefficient of thermal expansion (χ) in an annular fin subjected to thermal stresses is presented. Initially, to obtain the nondimensional temperature distribution from the heat equation, the forward method is employed using an approximate analytical solution based on HPM. Thereafter, a closed form solution for the temperature-dependent thermal stresses is obtained using the classical theory of thermoelasticity coupled with HPM solution containing the temperature distribution. Next, for satisfying a particular stress criterion which makes relevance in selecting appropriate configurations for selecting the finned system, unknown thermal parameters are obtained using an inverse approach based on the Nelder–Mead simplex search minimization technique. The o...

Application of homotopy perturbation method and inverse prediction of thermal parameters for an annular fin subjected to thermal load

An approximate analytical solution is presented for thermal stresses in an annular convective-conductive fin of a hyperbolic profile with temperature dependent thermal conductivity. The classical thermo-elasticity theory coupled with the ADM based polynomial form of temperature field is employed for an approximate analytical solution of thermal stresses. The
influence of thermal parameters, i.e. variable thermal conductivity, the thermo-geometric parameter and the non-dimensional coefficient of thermal expansion on temperature and sttress fields are investigated. The results for the stress field obtained from the ADM based solution are compared with those available in literature and found to be in close agreement.

/pdf/effect-of-heat-transfer-on-thermal-stresses-in-an-annular-5bx64i6oki.pdf

Effect of heat transfer on thermal stresses in an annular hyperbolic fin: an approximate analytical solution

In this paper, the thermoelastic behavior of a functionally graded material (FGM) annular fin is investigated. The material properties of the annular fin are assumed to vary radially. The h...

Rajiv Ranjan

Papers

Homotopy Perturbation Method for Thermal Stresses in an Annular Fin with Variable Thermal Conductivity

Local impact effects on concrete target due to missile: An empirical and numerical approach

Application of homotopy perturbation method and inverse prediction of thermal parameters for an annular fin subjected to thermal load

Effect of heat transfer on thermal stresses in an annular hyperbolic fin: an approximate analytical solution

Thermoelastic study of a functionally graded annular fin with variable thermal parameters using semiexact solution