Volume 7, Issue 1
مرور بر اساس
ارسال های اخیر
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Measuring Crack-type Damage Features in Thin-walled Composite Beams using De-noising and a 2D Continuous Wavelet Transform of Mode Shapes
(Shahid Chamran University of Ahvaz, 2021-01-01)A new method is described, allowing to locate and also measure the length and orientation of crack-type damage features in thin-walled composite beams (TWCB), a capability not previously reported. The method is based on a ...
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Buckling Analysis of Functionally Graded Shells under Mixed Boundary Conditions Subjected to Uniform Lateral Pressure
(Shahid Chamran University of Ahvaz, 2021-01-01)In this study, the buckling problem of shells consisting of functionally graded materials (FGMs) under uniform compressive lateral pressure is solved at mixed boundary conditions. After creating the FGM models, the basic ...
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Constructal Design of an Idealize Arterial Bypass Graft: Effect of the Bypass Attachment Pointon Resistance to Flow
(Shahid Chamran University of Ahvaz, 2021-01-01)This paper aims to investigate, through the 3D numerical analysis of an idealized arterial bypass graft, the dependence of the resistance to flow on the bypass insertion point. The computational model assumes a laminar ...
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Applications of Higher-Order Derivatives to the Subclasses of Meromorphic Starlike Functions
(Shahid Chamran University of Ahvaz, 2021-01-01)In this paper, we introduce and study some new classes of multivalent (p -valent) meromorphically starlike functions involving Higher-Order derivatives. For these multivalent classes of functions, we derive several interesting ...
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Numerical Analysis of the Baffles Inclination on Fluid Behavior in a Shell and Tube Heat Exchanger
(Shahid Chamran University of Ahvaz, 2021-01-01)The thermo-hydraulic performances of the shell-and-tube heat exchangers with different baffles inclination angle α =10°, α =20°, and α = 40° are investigated. The numerical analysis has been evaluated using ANSYS Fluent ...
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Numerical Modeling of Heat Transfer and Hydrodynamics in Compact Shifted Arrangement Small Diameter Tube Bundles
(Shahid Chamran University of Ahvaz, 2021-01-01)Numerical modeling of heat and hydrodynamics processes in the channels of compact small diameter tube bundles with different transverse shifted arrangement is carried out. The fields of velocities, temperatures, and pressures ...
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Thermoelastic Model with Higher-order Time-derivatives and Two Phase-lags for an Infinitely Long Cylinder under Initial Stress and Heat Source
(Shahid Chamran University of Ahvaz, 2021-01-01)In this work, a generalized higher-order time-derivatives model with phase-lags has been introduced. This model is applied to study the thermal heat problem of a homogeneous and isotropic long cylinder due to initial stress ...
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An Efficient Spectral Method-based Algorithm for Solving a High-dimensional Chaotic Lorenz System
(Shahid Chamran University of Ahvaz, 2021-01-01)In this paper, we implement the multidomain spectral relaxation method to numerically study high dimensional chaos by considering the nine-dimensional Lorenz system. Chaotic systems are characterized by rapidly changing ...
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New Analytical Study for Nanofluid between Two Non-Parallel Plane Walls (Jeffery-Hamel Flow)
(Shahid Chamran University of Ahvaz, 2021-01-01)The aim of this paper is to analyze the problem of magneto hydrodynamic Jeffrey-Hamel flow (JHF) with nanoparticles. The governing equations for this problem are reduced to an ordinary differential equation and it is solved ...
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Heat and Mass Transfer of Natural Convective Flow with Slanted Magnetic Field via Fractional Operators
(Shahid Chamran University of Ahvaz, 2021-01-01)This article explores the MHD natural convective viscous and incompressible fluid flow along with radiation and chemical reaction. The flow is confined to a moving tilted plate under slanted magnetic field with variable ...
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A Simple Approach for the Fractal Riccati Differential Equation
(Shahid Chamran University of Ahvaz, 2021-01-01)In this paper, a fractal modification of the Riccati differential equation is presented, and the two-scale transform method combined with Taylor series is used to solve the equation. Two examples are given to verify the ...
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Control of Actuators Torques for Optimal Movement along a Given Trajectory for the DexTAR Robot
(Shahid Chamran University of Ahvaz, 2021-01-01)The control problem of the dynamics of actuators is considered to obtain a given optimal movement of the end-effector for a parallel Dexterous Twin Arms Robot (DexTAR). The trajectory is assumed to be known in advance, and ...
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Nonlinear Winkler-based Frame Element with Inclusion of Shear-Flexure Interaction Effect for Analysis of Non-Ductile RC Members on Foundation
(Shahid Chamran University of Ahvaz, 2021-01-01)Non-ductile reinforced concrete (RC) members are common in the existing RC frame buildings with the old seismic code (lightly and inadequately detailed transverse reinforcement) and may suffer shear failure or flexure-shear ...
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Forced Response of a Low-Pressure Turbine Blade using Spectral/hp Element Method: Direct Numerical Simulation
(Shahid Chamran University of Ahvaz, 2021-01-01)The Spectral/HP element method has been applied to perform Direct Numerical Simulations (DNS) over a single T106A turbine blade-row using the open source software Nektar++. The main goal of the current study is to perform ...
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Symmetry Reduction and Exact Solutions of a Class of Wave Equations
(Shahid Chamran University of Ahvaz, 2021-01-01)In this paper, the Lie symmetries and similarity reduction of a class of wave equations are investigated. First, Lie algorithm is used to get the determining equations of symmetry for the given equations which are complicated ...
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Forced Vibration Responses of Axially Functionally Graded Beams by using Ritz Method
(Shahid Chamran University of Ahvaz, 2021-01-01)This work presents forced vibration responses of a cantilever beam made of functionally graded material under a harmonic load. The material properties of beam vary along the axial direction. The kinematics of the beam are ...
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Scaling Law of Permeability and Porosity for Fluid Transport Phenomena in Porous PCM Media
(Shahid Chamran University of Ahvaz, 2021-01-01)The present paper reports the numerical results of fluid flow in porous phase change materials (PCM) media. This is an important topic in potential scientific, technological and engineering field's especially latent heat ...
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A Variational Principle for a Nonlinear Oscillator Arising in the Microelectromechanical System
(Shahid Chamran University of Ahvaz, 2021-01-01)A nonlinear oscillator arising in the microelectromechanical system is complex and it is difficult to obtain a variational principle. This paper begins with a wrong variational formulation and uses the semi-inverse method ...
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The Integrated Analysis of Vibrations of Quartz Crystal Plates through Artificial Coupling Factors
(Shahid Chamran University of Ahvaz, 2021-01-01)We introduce smaller artificial factors into the elastic constants matrix and manage to make Mindlin first-order plate theoryequations of motions coupled for a uniform and integrated analysis. The energy distributions of ...
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Thermoelastic Vibrations of Nonlocal Nanobeams Resting on a Pasternak Foundation via DPL Model
(Shahid Chamran University of Ahvaz, 2021-01-01)The present work introduces the thermoelastic vibrations of nonlocal nanobeams resting on a two-parameter foundation. The governing equations are formulated for linear Winkler–Pasternak foundation type based on the generalized ...
