Fluid Mechanics
MHD thermal radiation and chemical reaction effects with peristaltic transport of the eyring-powell fluid through a porous medium

Kvenu Reddy; M. Gnaneswara Reddy

Volume 9, Issue 1 , September 2019, , Pages 89-105

https://doi.org/10.22061/jcarme.2018.2840.1293

Abstract
  In this paper, we analyze the thermal radiation and chemical reaction impacts on MHD peristaltic motion of the Eyring-Powell fluid through a porous medium in a channel with compliant walls under slip conditions for velocity, temperature, and concentration. Assumptions of a long wave length and low Reynolds ...  Read More

Computational Fluid Dynamics (CFD)
A novel 1D model approach to optimizing the entrainment ratio of a steam ejector and introducing novel definitions of ejector efficiency

S. Akbarnejad; M. Ziabasharhagh

Volume 14, Issue 1 , November 2024, , Pages 93-109

https://doi.org/10.22061/jcarme.2024.10521.2388

Abstract
  This paper presents a novel 1D modeling approach to optimize steam ejector entrainment ratios, introducing new definitions of ejector efficiency and  enhancement methods. Using the proposed model, an ejector is tailored for specific boundary conditions with available computational fluid mechanic ...  Read More

Fluid Mechanics
A review of dough rheological models used in numerical applications

S. M. S. M. Hosseinalipour; A. Tohidi; M. Shokrpour

Volume 1, Issue 2 , June 2012, , Pages 129-147

https://doi.org/10.22061/jcarme.2012.34

Abstract
  The motivation for this work is to propose a first thorough review of dough rheological models used in numerical applications. Although many models have been developed to describe dough rheological characteristics, few of them are employed by researchers in numerical applications. This article reviews ...  Read More

Control
Nonlinear static and dynamic behaviors of a microresonator under discontinuous electrostatic actuation

M. Zamanian; S. A. A. Hosseini

Volume 3, Issue 2 , June 2014, , Pages 145-159

https://doi.org/10.22061/jcarme.2014.68

Abstract
  This article studied static deflection, natural frequency and nonlinear vibration of a clamped-clamped microbeam under discontinues electrostatic actuation. The electrostatic actuation was induced by applying AC-DC voltage between the microbeam and electrode plate. In contrast to previous works, it was ...  Read More

Nonlinear Response
A study on the use of perturbation technique for analyzing the nonlinear forced response of piezoelectric microcantilevers

M. Zamanian; M. Hadilu; B. Firouzi

Volume 5, Issue 2 , June 2016, , Pages 161-172

https://doi.org/10.22061/jcarme.2016.433

Abstract
  In this paper, a comparison is made between direct and indirect perturbation approaches to solve the non-linear vibration equations of a piezoelectrically actuated cantilever microbeam. In this comparison, the equation of motion is considered according to Euler-Bernoulli theory with considering the non-linear ...  Read More

Manufacturing Processes
Investigating electrochemical drilling (ECD) using statistical and soft computing techniques

Mehdi Tajdari; Saeed Zare Chavoshi

Volume 4, Issue 2 , June 2015, , Pages 181-191

https://doi.org/10.22061/jcarme.2015.275

Abstract
  In the present study, five modeling approaches of RA, MLP, MNN, GFF, and CANFIS were applied so as to estimate the radial overcut values in electrochemical drilling process. For these models, four input variables, namely electrolyte concentration, voltage, initial machining gap, and tool feed rate, were ...  Read More

Turbulance
Experimental analysis of shock waves turbulence in contractions with rectangular sections

Mohammad Reza Nikpour; payam khosravinia; Davod Farsadizadeh

Volume 8, Issue 2 , February 2019, , Pages 187-196

https://doi.org/10.22061/jcarme.2018.2033.1179

Abstract
  Formation of shock waves has an important role in supercritical flows studies. These waves are often occurring during passage of supercritical flow in the non-prismatic channels. In the present study, the effect of length of contraction wall of open-channel for two different geometries (1.5 m and 0.5 ...  Read More

Fatigue
Fatigue analysis of CRH2 high speed train railway wheels occurred due to random parameters

Mazuri Erasto Lutema; Awel Mohammedseid Momhur

Volume 13, Issue 2 , March 2024, , Pages 207-218

https://doi.org/10.22061/jcarme.2023.9754.2315

Abstract
  The most crucial parts that literally sustain the safety of railroad rolling stock from the subfloor are the wheels. However, during operation, several random parameters can impair their performance, resulting in the train's unsafety. These unpredictable characteristics can lead to fatigue failure, especially ...  Read More

Computational Fluid Dynamics (CFD)
Three-dimensional chemically reacting radiative MHD flow of nanofluid over a bidirectional stretching surface

Sandeep Naramgari; Siva Krishnam Raju C; G. Kumaran

Volume 7, Issue 2 , March 2018, , Pages 209-222

https://doi.org/10.22061/jcarme.2017.1423.1111

Abstract
  This study deals with the three-dimensional flow of a chemically reacting magnetohydrodynamic Sisko fluid over a bidirectional stretching surface filled with the ferrous nanoparticles in the presence of non-uniform heat source/sink, nonlinear thermal radiation, and suction/injection. After applying the ...  Read More

Fluid Mechanics
An experimental study on pressuredrop of CNT/water nanofluid in a triple-tube heat exchanger

Rasoul Talebian; Mansour Talebi

Volume 12, Issue 2 , February 2023, , Pages 225-236

https://doi.org/10.22061/jcarme.2022.8582.2150

Abstract
  In the present study, the pressure drop of the nanofluid flow of carbon-water nanotubes (CNT/water) in a helical three-tube heat exchanger with constant fluid physical properties has been experimentally evaluated. For this purpose, first, the experimental device was designed and manufactured and then ...  Read More

Fluid Mechanics
Analytical study of nano-bioconvective flow in a horizontal channel using Adomian decomposition method

M. Kezzar; M. R. Sari; I. Tabet; N. Nafir

Volume 9, Issue 2 , February 2020, , Pages 245-258

https://doi.org/10.22061/jcarme.2018.3269.1367

Abstract
  In this paper, the bioconvective nanofluid flow in a horizontal channel was considered. Using the appropriate similarity functions, the partial differential equations of the studied problem resulting from mathematical modeling are reduced to a set of non-linear differential equations. Thereafter, these ...  Read More

Thermodynamics and Cumbustion
Heat transfer characteristics of methane-air diffusion flames impinging normally on plane surfaces

Satyananda Tripathy; Manmatha K Roul; Akshaya K Rout

Volume 10, Issue 2 , April 2021, , Pages 361-372

https://doi.org/10.22061/jcarme.2019.3962.1466

Abstract
  Theoretical investigation of turbulent flame impinging normally on plane surfaces isdone to determine the average Nusselt number and the plate heat flux distribution as functions of jet Reynolds number, equivalence ratio, and separation distance. The analysis is established on the mathematical formulation ...  Read More

Stress Analysis
Thermomechanical behaviour of functionally graded plates with HSDT

B. Sidda Reddy; K. Vijaya Vumar Reddy

Volume 11, Issue 2 , March 2022, , Pages 365-379

https://doi.org/10.22061/jcarme.2019.5416.1674

Abstract
  This paper presents closed-form formulations of higher order shear deformation theory (HSDT) to analyse the functionally graded plates (FGPs) acted upon a thermo-mechanical load for simply supported (SS) conditions. This theory assumes nullity conditions for transverse stress on bottom and top face of ...  Read More

Fluid Mechanics
Water hammer simulation by explicit central finite difference methods in staggered grids

F. Khalighi; A. Ahmadi; A. Keramat

Volume 6, Issue 2 , June 2017, , Pages 69-77

https://doi.org/10.22061/jcarme.2017.598

Abstract
  Four explicit finite difference schemes, including Lax-Friedrichs, Nessyahu-Tadmor, Lax-Wendroff and Lax-Wendroff with a nonlinear filter are applied to solve water hammer equations. The schemes solve the equations in a reservoir-pipe-valve with ...  Read More

Heat and Mass Transfer
A truly meshless method formulation for analysis of non-Fourier heat conduction in solids

Isa Ahmadi

Volume 6, Issue 1 , December 2016, , Pages 75-89

https://doi.org/10.22061/jcarme.2016.522

Abstract
  The non-Fourier effect in heat conduction is important in strong thermal environments and thermal shock problems. Generally, commercial FE codes are not available for analysis of non-Fourier heat conduction. In this study, a meshless formulation is presented for the analysis of the ...  Read More

Vibration
LQG vibration control of sandwich beams with transversely flexible core equipped with piezoelectric patches

Nima Nadirian; Hasan Biglari; Mohammad Ali Hamed

Volume 7, Issue 1 , August 2017, , Pages 85-97

https://doi.org/10.22061/jcarme.2017.643

Abstract
  The purpose of this paper is control of simply supported flexible core sandwich beam's linear vibration equipped with piezoelectric patches under different loads. The effects of external forces imposed on sandwich beam can be reached to a minimum value by designing an appropriate controller and control ...  Read More

Solar Energy
Evaluation of solar-chimney power plants with multiple-angle collectors

hamideh Hoseini; ramin mehdipour

Volume 8, Issue 1 , September 2018, , Pages 85-96

https://doi.org/10.22061/jcarme.2017.2282.1213

Abstract
  Solar chimney power plants are plants based on solar thermal power including three parts of collector, chimney and turbine, which is able to produce electrical energy. One of the effective parameters in increasing the power production is the collector angles versus horizon. In the present study, a numerical ...  Read More

Fluid Mechanics
Numerical investigation of the effect of size distribution on the frequency response of encapsulated microbubbles

M. Mahdi; M. Shariatnia; M. Rahimi

Volume 13, Issue 1 , September 2023, , Pages 89-101

https://doi.org/10.22061/jcarme.2023.8944.2207

Abstract
  Microbubbles are used in ultrasound imaging, targeted drug delivery, destruction of cancerous tissues, etc. On the other hand, the demographic behaviors of small bubbles under the influence of Ultrasound have not been fully detected or studied. This study investigates the effect of the radial distribution ...  Read More

Optimization
Analysis and implementation of the solar tree by determining the optimal angle in Shiraz-Iran

Meraj Rajaee; Mina Jalali

Volume 12, Issue 1 , August 2022, , Pages 95-107

https://doi.org/10.22061/jcarme.2021.8079.2076

Abstract
  The solar tree is a combination of technology and art that is considered as the application of solar energy in the art of urban architecture. This study aims to combine solar technology with architectural style and art, to help urban beautification and investigate the increase in solar panels' efficiency ...  Read More

Computational Fluid Dynamics (CFD)
Cooling a hot obstacle in a rectangular enclosure by using a MHD nanofluid with variable properties

Milad Darabi Boroujeni; Ehsan Kianpour

Volume 10, Issue 1 , September 2020, , Pages 101-110

https://doi.org/10.22061/jcarme.2019.2959.1308

Abstract
  In this study, cooling of a hot obstacle in a rectangular cavity filled with water-CuO nanolfuid has been examined numerically. This cavity has an inlet and outlet and the cold nanofuid comes from the left side of the cavity and after cooling the hot obstacle, it goes out from the opposite site. All ...  Read More

Manufacturing Processes
Investigation of process parameters for T-joint aluminum alloy 6061-T6 with nanocomposites material friction stir welding based on the Taguchi method

Faiz F. Mustafa; Sadoon R. Daham

Volume 11, Issue 1 , September 2021, , Pages 101-111

https://doi.org/10.22061/jcarme.2020.4314.1522

Abstract
  Surface layer in many engineering applications is strengthened by ceramic grains where the main parts have higher structure toughness than the original material. This paper presents the effect of four process parameters that have been taken into consideration using Taguchi technique based on L9 orthogonal ...  Read More

Computational Fluid Dynamics (CFD)
Experimental study and application of computational fluid dynamics on the prediction of air velocity and temperature in a ventilated chamber

Mohammad Saeed Sharifi; Miralam Mahdi; Karim Maghsoudi Mehraban

Volume 9, Issue 1 , September 2019, , Pages 107-119

https://doi.org/10.22061/jcarme.2019.3919.1458

Abstract
  The shape of the air flow in the interior is heavily influenced by the air distribution system and the way air enters and exits. By numerically simulating flow by computational fluid dynamics, one can determine the flow pattern and temperature distribution and, with the help of the results, provide an ...  Read More

Computational Fluid Dynamics (CFD)
CFD simulation and exergy evaluation of geometrical characteristics effects of refrigeration tubes in a 3-fluid LAMEE

Aydin Zabihi; Nader Pourmahmoud

Volume 14, Issue 1 , November 2024, , Pages 111-128

https://doi.org/10.22061/jcarme.2024.10051.2341

Abstract
  Cooling tubes are inserted into the desiccant dehumidifier liquid of a 3-fluid liquid-to-air membrane energy exchanger (LAMEE)  to regulate the temperature of the dehumidifier liquid. As a result, the 3-fluid LAMEE's performance is significantly influenced by the refrigerated tubes. The numerical ...  Read More

Fluid Mechanics
Laminar mixing of high-viscous fluids by a cylindrical chaotic mixer

Payam Rahim Masharei; Seyed Mostafa Hosseinalipour; Mohammad Javad moslemani

Volume 8, Issue 2 , February 2019, , Pages 197-210

https://doi.org/10.22061/jcarme.2018.1681.1147

Abstract
  Laminar mixing of glycerin in a chaotic mixer is carried by means of the blob deformation method. The mixer was a cylindrical vessel with two rotational blades which move along two different circular paths with a stepwise motion protocol. The flow visualization was performed by marking of the free surface ...  Read More

Meshless Numerical Methods
Comparison of the performance of mesh and simple baffles in controlling the sloshing phenomenon based on the SPH simulation

R. Shamsoddini; B. Abolpour

Volume 13, Issue 2 , March 2024, , Pages 219-228

https://doi.org/10.22061/jcarme.2024.10109.2353

Abstract
  One of the main problems in liquid transfer tanks is the sloshing phenomenon. This phenomenon, which is associated with regular or irregular liquid waves inside the tank, can cause many risks. One of the most widely applied methods to control the fluctuations caused by the sloshing phenomenon is the ...  Read More