Volume 12 (2022)
Volume 11 (2021)
Volume 10 (2020)
Volume 9 (2019)
Volume 8 (2018)
Volume 7 (2017)
Volume 6 (2016)
Volume 5 (2015)
Volume 4 (2014)
Volume 3 (2013)
Volume 2 (2012)
Volume 1 (2011)

Heat and Mass Transfer
Approximate solution of laminar thermal boundary layer over a thin plate heated from below by convection

Aminreza Noghrehabadi; Mohammad Ghalambaz; Amin Samimi

Volume 2, Issue 2 , June 2013, , Pages 45-57


  In this paper, an integration of a symbolic power series method - Padé approximation technique (PS - Padé), was utilized to solve a system of nonlinear differential equations arising from the similarity solution of laminar thermal boundary layer over a flat plate subjected to a convective ...  Read More

Fluid Mechanics
Investigation of fluid flow and heat transfer in tube hot metal gas forming process

Javad Shahbazi Karami; GH. Payganeh

Volume 7, Issue 1 , August 2017, , Pages 47-56


  In this study, hot metal gas forming process of AA6063aluminumtubeis studied with a focus on heat transfer of both fluid and solid phases numerically. An experimental study is simultaneously conducted to validate the numerical method. Some of the most important outputs of the present study, are velocity ...  Read More

Manufacturing Processes
Experimental investigation of EDM process parameters by using Pongamia Pinnata osil blends as dielectric medium

Dastagiri Mabbu -; Srinivasa Rao P.; Madar Valli P.

Volume 11, Issue 1 , September 2021, , Pages 47-56


  Electro Discharge Machining (EDM) is an incredibly recognizable machining for ticklishness profiles in ’difficult to machine ‘materials. In EDM, the material ejection of the cathode is cultivated through exact controlled electric pulse (the flash), which changes the metals of two terminals ...  Read More

Fracture Mechanics
Torsional analysis of an orthotropic long cylinder weakened by multiple axisymmetric cracks

Alireza Hassani; Amin Hassani; Mojtaba Mahmoudi Monfared

Volume 8, Issue 1 , September 2018, , Pages 49-60


  Abstract: The solution to problem of an orthotropic long cylinder subjected to torsional loading is first obtained by means of separation valuables. The cylinder is twisted by two lateral shear tractions and the ends of the cylinder surface of the cylinder are stress-free. First, the domain under consideration ...  Read More

Application of linear and nonlinear vibration absorbers for the nonlinear beam under moving load

Nadia Parandeh Afshar; Farhad S. Samani; Moslem Molaie

Volume 5, Issue 1 , December 2015, , Pages 51-60


  Recently, a large amount of studies have been related to nonlinear systems with multi-degrees of freedom as well as continuous systems. The purpose of this paper is to optimize passive vibration absorbers in linear and nonlinear states for an Euler-Bernoulli beam with a nonlinear vibratory behavior under ...  Read More

Large eddy simulation of non-reactive flow in burners

Mahdi Zakyani

Volume 12, Issue 1 , August 2022, , Pages 51-62


  Large eddy simulations of non-reactive Delft II and Sydney bluff body flow are performed using different sub-grid scale models. Simulation of non-reactive burners is useful when studying flow characteristics inside reactive burners. As turbulent combustion simulation is rather an intricate task, it is ...  Read More

Heat and Mass Transfer
Chemical reaction and radiation effects on MHD free convection flow through a porous medium bounded by a vertical surface with constant heat and mass flux

T. Sudhakar Reddy; M. C. Raju; S. V. K. Varm

Volume 3, Issue 1 , December 2013, , Pages 53-62


  In the present paper, an analysis was carried out to investigate effects of radiation on a free convection flow bounded by a vertical surface embedded in a porous medium with constant suction velocity. It was under the influence of uniform magnetic field in the presence of a homogenous chemical reaction ...  Read More

Crashworthiness design of multi-cell tapered tubes using response surface methodology

Sadjad Pirmohammad; Sobhan Esmaeili-Marzdashti; Arameh Eyvazian

Volume 9, Issue 1 , September 2019, , Pages 59-75


  In this article, crashworthiness performance and crushing behavior of tapered structures with four internal reinforcing plates under axial and oblique dynamic loadings have been investigated. These structures have a tapered form with five cross sections of square, hexagonal, octagonal, decagon and circular ...  Read More

Internal Combustion Engine
Investigating the effects of fuel injection strategies in a dual-fuel diesel-H2 compression ignition engine

Ali Shaafi; Mohammad Javad Noroozi; Vahid Manshaei

Volume 10, Issue 1 , September 2020, , Pages 63-71


  In this computational research, the separate and simultaneous impacts of diesel direct injection timing, fuel spraying cone angle, and hydrogen gas addition on combustion characteristics, output emissions, and performance in a single-cylinder direct injection diesel engine was studied. In order to conduct ...  Read More

Heat and Mass Transfer
Experimental and numerical study of heat flux distribution in laser forming of bi-layer sheets

Mohammad Riahi; Mohamad Hoseinpour Gollo; Seiied Nader Ameli Kalkhoran

Volume 4, Issue 1 , December 2014, , Pages 67-79


  Laser forming is a modern process which is mainly used for forming metals. Different Lasers are used in this regard that includes Nd: YAG and CO2. In this study, forming bi-layer sheets of Aluminum/Ceramic by Laser was investigated. Furthermore, effect of Uniform and Gaussian heat flux distribution in ...  Read More

Fluid Mechanics
The numerical simulation of compressible flow in a Shubin nozzle using schemes of Bean-Warming and flux vector splitting

Gh. Payganeh; A. Hadidi; M. Hallaji; N. Garjasi

Volume 1, Issue 2 , June 2012, , Pages 111-118


  Over the last ten years, robustness of schemes has raised an increasing interest among the CFD community. The objective of this article is to solve the quasi-one-dimensional compressible flow inside a “Shubin nozzle” and to investigate Bean-Warming and flux vector splitting methods for numerical ...  Read More

Initial blank design of deep drawn orthotropic materials using inverse finite element method

Hashem Zamanian; Mehdi Bostan Shirin; Ahmad Assempour

Volume 3, Issue 2 , June 2014, , Pages 125-134


  In this work, an inverse finite element formulation was modified for considering material anisotropy in obtaining blank shape and forming severity of deep drawn orthotropic parts. In this procedure, geometry of final part and thickness of initial blank sheet were known. After applying ideal forming formulations ...  Read More

Heat and Mass Transfer
Optimizing naturally driven air flow in a vertical pipe by changing the intensity and location of the wall heat flux

M. Rahimi; M. Khalafi-Salout

Volume 5, Issue 2 , June 2016, , Pages 137-145


  Heat transfer from the internal surfaces of a vertical pipe to the adjacent air gives rise to the air flow establishment within the pipe. With the aim of optimizing the convective air flow rate in a vertical pipe, the details of the flow and thermal fields were investigated in the present study. Conservation ...  Read More

Derivation of turbulent energy of fiber suspensions

S. F. Ahmed; M. S. A. Sarker Sarker

Volume 4, Issue 2 , June 2015, , Pages 155-163


  The energy equation for turbulent flow of fiber suspensions was derived in terms of second order correlation tensors. Fiber motion of turbulent energy including the correlation between pressure fluctuations and velocity fluctuations was discussed at two points of flow field, at which the correlation ...  Read More

Fuzzy gain scheduling of PID controller for stiction compensation in pneumatic control valve

Pardeep kumar Rohilla; Feras Hakkak; Vineet Kumar

Volume 8, Issue 2 , February 2019, , Pages 165-174


  Inherent nonlinearities like, deadband, stiction and hysteresis in control valves degenerate plant performance. Valve stiction standouts as a more widely recognized reason for poor execution in control loops. Measurement of valve stiction is essential to maintain scheduling. For industrial scenarios, ...  Read More

Optimization of gas metal arcwelding parameters of SS304 austenitic steel by Taguchi –Grey relational analysis

Saadat Ali Rizvi; S P Tewari

Volume 7, Issue 2 , March 2018, , Pages 189-198


  This study investigated the optimization of three welding parameters (wire feed speed, arc voltage, and shielding gas flow rate) for SS 304H by using Taguchi based Grey relational analysis. In this research work, pure argon was used as shielding gas. Numbers of trials were performed as per ...  Read More

Experimental investigation and modeling of fiber metal laminates hydroforming process by GWO optimized neuro-fuzzy network

Amir Hossein Rabiee; Ehsan Sherkatghanad; Ali Zeinolabedin Beygi; Hassan Moslemi Naeini; Lihui Lang

Volume 12, Issue 2 , February 2023, , Pages 193-209


  In this paper, by considering the processing parameters, including blank holder force, blank holder gap, and cavity pressure as the most important input factors in the hydroforming process, an experimental design is performed, and an adaptive neural-fuzzy inference system (ANFIS) is applied to model ...  Read More

Energy Science and Technology
Experimental investigation on constant-speed diesel engine fuelled with biofuel mixtures under the effect of fuel injection


Volume 9, Issue 2 , February 2020, , Pages 225-233


  The petroleum product has seen a drastic demand in the recent past. Biofuels are the only solution to overcome this power crisis. In the view of sustainable energy development, biodiesel and its additives have become the best options for fossil fuel-based engines. In this work, a biodiesel mix was used ...  Read More

Nonlinear Solution
Analysis of generalized compressor characteristics on surge phenomena in axial compressors

Adnan Maqsood; Muhammad Kamran Khan Tareen; Rizwan Riaz; Laurent Dala

Volume 10, Issue 2 , April 2021, , Pages 337-344


  The paper discusses the effect of compressor characteristic on surge phenomena in axial flow compressors. Specifically, the effect of nonlinearities on the compressor dynamics is analyzed. For this purpose, generalized multiple time scales method is used to parameterize equations in amplitude and frequency ...  Read More

Heat and Mass Transfer
Electrical resistance heating distribution on three dimensional Jeffrey radiating nanofluid flow past stretching surface

Sreenivasulu Pandikunta; Barinepalle Malleswari; POORNIMA T T; N Bhaskar Reddy

Volume 11, Issue 2 , March 2022, , Pages 339-349


  This study emphasizes  the upshots of non-linear radiation and electrical resistance heating on a three dimensional Jeffrey dissipating nanoflow in view of convective surface conditions. The initial set of nonlinear dimensional boundary layer equations are transformed into a system of ordinary differential ...  Read More

Computational Fluid Dynamics (CFD)
Numerical simulation of Extracorporeal membrane oxygenators to investigate important parameters and membrane thickness in oxygen exchange rate

Behnam Dilmaghani Hassanlouei; Nader Pourmahmoud; Pierre Sullivan

Articles in Press, Accepted Manuscript, Available Online from 03 April 2023


  In this article, an extracorporeal membrane oxygenator (ECMO) is simulated in 2D geometry using computational fluid dynamics (CFD). Momentum and mass transport equations were solved for the laminar flow regime (30 < Re < 130 for the blood channel) using the finite element method. In this study, ...  Read More

Prediction of earing in deep drawing of anisotropic aluminum alloy sheet using BBC2003 yield criterion

S. Izadpanah; S. H. Ghaderi; M. Gerdooei

Volume 6, Issue 2 , June 2017, , Pages 47-55


  This paper investigates the earing phenomenon in deep drawing of AA3105 aluminum alloy, experimentally and numerically. Earing defect is mainly attributed to the plastic anisotropy of sheet metal. In order to control such defect, predicting the evolution of ears in sheet metal forming analyses becomes ...  Read More

Fluid Mechanics
Applying evolutionary optimization on the airfoil design

Abolfazl Khalkhali*; Hamed Safikhani

Volume 2, Issue 1 , December 2012, , Pages 51-62


  In this paper, lift and drag coefficients were numerically investigated using NUMECA software in a set of 4-digit NACA airfoils. Two metamodels based on the evolved group method of data handling (GMDH) type neural networks were then obtained for modeling both lift coefficient (CL) and drag coefficient ...  Read More

A new strategy for controlling wind turbines against sensor faults and wake effects to harvest more electrical energy

Seyed Vahab Shojaedini; Armin Parsiannejad

Volume 6, Issue 1 , December 2016, , Pages 51-64


  This paper describes a new method for harvesting maximum electrical energy in wind farms. In proposing technique, the stochastic process principles are applied for detecting fault measurements of sensors. On the other hand, the wind farm is modeled by using fuzzy concept. Thereby the turbines are controlled ...  Read More

Coordinate influence on singularity of a 3-ups parallel manipulator
Volume 1, Issue 1 , December 2011, , Pages 53-58


  This paper shows the coordinates influence on singularity of a three degree-of-freedom structure, namely, three-Universal-Prismatic-Spherical (3-UPS) parallel manipulator. Rotational coordinates, which are chosen to define the orientation of the platform, affect the singularity of the manipulator. Euler ...  Read More