Heat and Mass Transfer
Role of ohmic heating and radiation on magnetohydrodynamic Jeffery fluid model through a tapered channel with peristalsis

Ravi Kumar; D. Vijaya Sekhar; Sk. Abzal

Volume 11, Issue 2 , March 2022, , Pages 317-327


  Theoretical investigation of Ohmic heating (Joule heating) and radiation on MHD Jeffery fluid model with porous material along the tapered channel with peristalsis is the focus of this study. Long wavelength and low-Reynolds number approximations are used in the mathematical modelling. Axial rate, pressure ...  Read More

Energy Science and Technology
Improvement of energy efficiency and heat recovery performance within the paper machine drying section

Shaaban Ghodbanan; Reza Alizadeh; Sirous Shafiei; Javad Rahbar Shahrouzi

Articles in Press, Accepted Manuscript, Available Online from 04 February 2024


  In this study the energy assessment and heat recovery analysis of multi-cylinder drying section were carried out in a fluting paper machine. The specific heat consumption per unit of paper was determined to be about 4.7 GJ per ton of paper and accordingly, the machine consumed about 1.71 tons steam per ...  Read More

Composite Materials
Influence of heat generation on the phase transformations and impact responses of composite plates with embedded SMA wires

A. Niknami; M. Shariyat

Volume 6, Issue 2 , June 2017, , Pages 13-26


  In the present research, in contrast to the available papers, not only the superelasticity but also the shape memory effects are taken into account in determination of the impact responses. At the same time, in addition to modifying Brinson’s model for the shape memory alloys (SMAs), to include ...  Read More

Hydraulic and Pneumatic Systems
Hydraulic anti-lock, anti-skid braking system using fuzzy controller

M. Maghroory; A. Farhadi; P. Naderi

Volume 6, Issue 1 , December 2016, , Pages 21-37


  To maintain the stability trajectory of vehicles under critical driving conditions, anti lock-anti skid controllers, consisting of four anti-lock sub-controllers for each wheel and two anti-skid sub-controllers for left and right pair wheels have been separately designed. Wheel and body systems have ...  Read More

Manufacturing Processes
A numerical and experimental study on tubular channel angular pressing (TCAP) as a noble SPD method

Ghader Faraji*; Mahmoud Mosavi Mashhadi; Karen Abrinia

Volume 2, Issue 1 , December 2012, , Pages 31-36


  The current study conducted a finite element (FE) and experimental investigation on tubular channel angular pressing as a noble severe plastic deformation technique for producing ultrafine grained and nanostructure tubular components. To examine the effects of the TCAP process on the strain distribution ...  Read More

Thermodynamics and Cumbustion
Influence of varying timing angle on performance of an SI engine: An experimental and numerical study

A. H. Kakaee; J. Zareei

Volume 2, Issue 2 , June 2013, , Pages 33-43


  Engine performance depends on two main factors of engine speed and ignition time. Ignition timing can affect engine life, fuel economy and engine power. In this paper, to study engine performance of Peugeot 206 TU3A with comparison ratio of 10.5:1 and displacement of 1361CC in MATLAB software, a two-zone ...  Read More

Heat and Mass Transfer
Unsteady MHD nonlinear radiative squeezing slip-flow of Casson fluid between parallel disks

Sathish Kumar M; Sandeep N; Rushi Kumar B

Volume 7, Issue 1 , August 2017, , Pages 35-45


  Effect of nonlinear thermal radiation on the unsteady magnetohydrodynamic slip flow of Casson fluid between parallel disks in the presence of thermophoresis and Brownian motion effects are investigated numerically. A similarity transformation is employed to reduce the governing partial differential equations ...  Read More

An experimental and analytical investigation of flange forming by spinning process

Mohamed Elmasry; Hammad T. Elmetwally; Mohamed N. El-Sheikh; Ragab K. Abdel-Magied

Volume 11, Issue 1 , September 2021, , Pages 35-46


  The tube flange is typically performed using welding, forging methods, which cost effort and time. In the present work, a metal spinning process to form tube flange was proposed. A flange-forming tool was developed based on the outer tube diameter to form the flange. It consists of three components namely; ...  Read More

Fracture Mechanics
Finite element prediction of ductile fracture in automotive panel forming: comparison between FLD and lemaitre damage models
Volume 1, Issue 1 , December 2011, , Pages 37-44


  In sheet metal forming processes with complex strain paths, a part is subjected to large plastic deformation. This severe plastic deformation leads to high plastic strain localization zones and subsequent accumulation of those strains. Then internal and superficial micro-defects and in other words ductile ...  Read More

New implementation of a non-associated flow rule in rate-independent plasticity

F. Moayyedian; M. Kadkhodayan

Volume 5, Issue 1 , December 2015, , Pages 37-49


  One of the new research fields in plasticity is related to choosing a proper non-associated flow rule (NAFR), instead of the associated one (AFR), to predict the experimental results more accurately. The idea of the current research is derived from combining von Mises and Tresca criteria in the places ...  Read More

Analysis of deep drawing process to predict the forming severity considering inverse finite element and extended strain-based forming limit diagram

Mehdi Bostan Shirin; Ramin Hashemi; Ahmad Assempour

Volume 8, Issue 1 , September 2018, , Pages 39-48


  An enhanced unfolding Inverse Finite Element Method (IFEM) has been used together with an extended strain-based forming limit diagram (EFLD) to develop a fast and reliable approach to predict the feasibility of the deep drawing process of a part and determining where the failure or defects can occur. ...  Read More

Production Methods
Reliability, availability, and maintainability modeling of multi-state systems with load-sharing structure

Mohammad Ali Farsi

Volume 13, Issue 1 , September 2023, , Pages 39-53


  The reliability of manufacturing systems modeling and analysis is a complex process. Usually, their behavior is similar to multi-state systems. The configurations of such systems, possibly with load sharing and other structural dependencies, are designed to provide high reliability/availability. Consequently, ...  Read More

Fluid Mechanics
Investigation of electrokinetic mixing in 3D non-homogenous microchannels

J. Jamaati; H. Niazmand; M. Renksizbulut

Volume 3, Issue 1 , December 2013, , Pages 41-52


  A numerical study of 3D electrokinetic flows through micromixers was performed. The micromixers considered here consisted of heterogeneous rectangular microchannels with prescribed patterns of zeta-potential at their walls. Numerical simulation of electroosmotic flows within heterogeneous channels requires ...  Read More

Surface finish characteristics of distinct materials using extrusion honing process

Jayasimha SLN; Ganapathy Bawge; Raju H.P.

Volume 12, Issue 1 , August 2022, , Pages 41-50


  Traditional methods of finishing like grinding, lapping, and honing are limited to finishing of vital shapes such as flat and circular. These conventional methods are lagging for processing components that are fabricated by hard materials, involving complicated profiles in particular. Hence, it is essential ...  Read More

Fluid Mechanics
A method for detecting bubbles in two-phase gas-liquid flow

Pedram Hanafizadeh; Amirmohammad Sattari; Seyed Erfan Hosseinidoost; Morteza Molaei; Mehdi Ashjaee

Volume 9, Issue 1 , September 2019, , Pages 47-58


  Detecting bubble in two-phase flow has been a basic issue in two-phase flow systems. A new method for measuring the frequency of bubble formation is presented in this paper. For this purpose, an electronic device was designed and constructed which works based on a change in intensity of laser beam. For ...  Read More

Fluid Mechanics
Transient analysis of radiative hydromagnetic poiseuille fluid flow of two-step exothermic chemical reaction through a porous channel with convective cooling

Salawu Olakunle; Abimbola Abolarinwa; John Fenuga

Volume 10, Issue 1 , September 2020, , Pages 51-62


  In this research, the transient analysis of radiative combustible viscous chemical reactive two-step exothermic fluid flow past a permeable medium with various kinetics i.e Bimolecular, Arrhenius and Sensitized are investigated. The hydromagnetic liquid is influenced by a periodic vicissitudes in the ...  Read More

Large amplitude vibration prediction of rectangular plates by an optimal artificial neural network (ANN)

Mahdi Karimi; Alireza Shooshtari; Soheil Razavi

Volume 4, Issue 1 , December 2014, , Pages 55-65


  In this paper, nonlinear equations of motion for laminated composite rectangular plates based on the first order shear deformation theory were derived. Using a perturbation method, the nonlinear equation of motion was solved and analytical relations were obtained for natural and nonlinear frequencies. ...  Read More

Thermodynamics and Cumbustion
Performance evaluation of a low heat rejection diesel engine with carbureted ethanol and jatropha oil

M. V. S. Murali Krishna; V. V. R. Seshagiri Rao; P. V. K. Murthy; T. K. K. Reddy

Volume 1, Issue 2 , June 2012, , Pages 99-110


  Experiments were conducted to evaluate the performance of a low heat rejection (LHR) diesel engine. Performance parameters and emission levels were determined at various magnitudes of brake mean effective pressure. Combustion characteristics of the engine were measured with TDC (top dead centre) encoder, ...  Read More

Heat and Mass Transfer
Effects of heat generation/absorption on natural convection of nanofluids over the vertical plate embedded in a porous medium using drift-flux model

M. Ghalambaz; A. Noghrehabadi

Volume 3, Issue 2 , June 2014, , Pages 113-123


  In this paper, natural convection heat transfer over a vertical plate in a Darcy porous medium saturated with a nanofluid subject to heat generation/absorption was theoretically studied. The governing partial differential equations were transformed to a set of ordinary differential equations using similarity ...  Read More

Heat and Mass Transfer
Estimating the unknown heat flux on the wall of a heat exchanger internal tube using inverse method

M. Sh. Mazidi; M. Alizadeh; L. Nourpour; V. Shojaee Shal

Volume 5, Issue 2 , June 2016, , Pages 127-136


  In the design of heat exchangers, it is necessary to determine the heat transfer rate between hot and cold fluids in order to calculate the overall heat transfer coefficient and the heat exchanger efficiency. Heat transfer rate can be determined by inverse methods. In this study, the unknown space-time ...  Read More

Numerical simulation of laser beam welding of Ti6Al4V sheet

M. Azizpour; M. Ghoreishi; A. Khorram

Volume 4, Issue 2 , June 2015, , Pages 145-154


  This paper was aimed to report the 3D finite element analysis simulation of laser welding process of Ti6Al4V 1.7 mm sheets in butt joint in order to predict the temperature distribution, hardness, and weld geometry. The butt-joint welds were made using CO2 laser with the maximum power of 2.2 kW in the ...  Read More

Hydraulic and Pneumatic Systems
Experimental and numerical investigation of bottom outlet hydraulic model

Mahdi Moghimi

Volume 8, Issue 2 , February 2019, , Pages 153-164


  Using experimental models along with conducting numerical analysis have been widely used in performance recognition and optimization of hydraulic equipments. Numerical modeling has lower cost rather than experimental one; however practical tests are commonly used because of the hydraulic structure importance ...  Read More

Computational Fluid Mechanics (CFM)
Numerical solution of unsteady incompressible nanofluid flow with mixed convection heat transfer using Jameson method on unstructured grid

Sajjad Rasoolzadeh; Mir Yoseph Hashemi

Volume 13, Issue 2 , March 2024, , Pages 169-180


  The purpose of this paper is to numerically simulate unsteady, incompressible and laminar flow with natural and mixed convection heat transfer in a square lid-driven cavity filled with Cu-Water nanofluid. Jameson method is used in conjunction with Artificial compressibility method on unstructured grid ...  Read More

Mechanics of Materials
Effect of relative humidity on mechanical strength of zirconia/ Nafion® Nano-composite membrane

Fulufhelo Nemavhola; Simon Dhlamini; Rudzani Sigwadi; Touhami Mokrani

Volume 7, Issue 2 , March 2018, , Pages 175-187


  This paper presents the results of mechanical strength of wet and dry zirconia/ Nafion® nano-composite membrane. The tensile tests were conducted to determine elastic modulus and stiffness of dry and wet pristine Nafion® membrane and modified Nafion® membrane. The composite membranes were ...  Read More

Dynamic Response
Numerical response using finite strip element including drilling degree of freedom

J. Akbari; H. Valaei; M. F. Sepahvand

Volume 12, Issue 2 , February 2023, , Pages 177-191


  Finite-element modeling of structures using elements without rotational degrees of freedom (DOFs) is usually stiffer than their physical behavior. Therefore, the stiffness of a structural system will be smoothed by adding rotational DOFs in the numerical model. In the traditional displacement-based finite-element ...  Read More