Research Paper 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

Volume 13, Issue 1 , September 2023, Pages 1-12

  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

Research Paper Biomechanics
3D numerical analysis of arterial thromboembolism through carotid bifurcation

Puria Talebi Barmi; Bahman Vahidi

Volume 13, Issue 1 , September 2023, Pages 13-25

  Arterial embolism is one of the major causes of brain infarction. Investigating the hemodynamic factors of this phenomenon can help us to get a better understanding of this complication. The carotid artery is one of the primary tracts that emboli can go toward the brain through it. In this study, we ...  Read More

Research Paper Manufacturing Processes
Predictive model for diameter control of polysulfone hollow fibers produced by dry-jet wet spinning

Ali Rugbani

Volume 13, Issue 1 , September 2023, Pages 27-38

  This research proposes a general formula for implementing in the control system of a dry-jet wet spinning machine to achieve a specific diameter size for Polysulfone hollow fibers. By employing Taguchi method, the effect of the operation parameters on the fiber geometry is investigated. The findings ...  Read More

Research Paper 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

Research Paper Hydraulic and Pneumatic Systems
Effect of valve plate silencing grooves on flow and pressure fluctuation in fixed displacement radial piston pump

Lokesh Kumar; Nimai Pada Mandal

Volume 13, Issue 1 , September 2023, Pages 55-66

  This study focuses on the flow and pressure fluctuations of a fixed displacement radial piston pump with a valve plate with silencing grooves, and the effect of the number of pistons (5, 6, and 7) is investigated. Over the manifolds of the pump, valve plate silencing grooves are regarded as Top Dead ...  Read More

Research Paper Heat and Mass Transfer
Lattice Boltzmann simulation inside a cavity: The effect of pipe profile on natural convection

Seyed Mostafa Moafi Madani; Javad Alinejad; Yasser Rostamiyan; Keivan Fallah

Volume 13, Issue 1 , September 2023, Pages 67-74

  In the present study, the effect of the heating pipe profile on natural convection in a two-phase fluid inside a cavity has been investigated. This geometry has been simulated with the LB Method based on the D2Q9 model for analyzing stream lines, dimensionless velocity field of fluid flow, solid particles ...  Read More

Research Paper Energy Systems
Thermodynamic optimization of an integrated gas turbine cycle, heat exchanger and organic Rankine cycle for co-generation of mechanical power and heating load

Mohammed Ridha Jawad Al-Tameemi; Samir Yahya; Saadoon Abdul Hafedh; Itimad D. J. AZZAWI

Volume 13, Issue 1 , September 2023, Pages 75-88

  A thermodynamic evaluation is conducted on a combined heat and power system integrating a gas turbine (GT), a heat exchanger (HX1), and an organic Rankine cycle (ORC). Traditionally, ORC bottoming GT cycle is limited to mechanical power production. The novelty of this study is to recover wasted heat ...  Read More

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

Miralam Mahdi; Mostafa Shariatnia; Majid Rahimi

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

  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

Research Paper Nonlinear Solution
Active control of superposition of waves with time lagging and frequency difference: Numerical simulation

Yu Maan Kong; Wah Yen Tey

Volume 13, Issue 1 , September 2023, Pages 103-112

  The theory of superposition of waves has been widely deployed in many engineering applications such as medical imaging, engineering measurements, and wave propagation in structures. However, these applications are prone to the interference of unwanted waves. The root cause of the weakness could be ascribable ...  Read More

Research Paper Composite Materials
Investigating the effect of different anisotropic surface roughening methods on ionic polymer metal composites behavior

Amirmehdi Mosaddeghi; Hamid Soleimanimehr; Ali Alinia ziazi

Volume 13, Issue 1 , September 2023, Pages 113-121

  As the smart materials, ionic polymer-metal composites (IPMCs), have a layered structure consisting of a polymeric membrane based on perfluorinated alkene, which is sandwiched between two noble metal-based electrodes, such as gold and platinum, and they can be bent significantly under applying a low-range ...  Read More