Research Paper Dynamic Response
Vibration characteristics of rotor systems with disk-shaft clearance

Zhinong Li; Fang Qiao; Yunlong Li; Shiyao Chen; Shijian Zhou; Fei Wang

Volume 13, Issue 2 , March 2024, Pages 123-136

https://doi.org/10.22061/jcarme.2023.9410.2262

Abstract
  Currently, the existing study on rotor system with disk-shaft clearance primarily focus on analyzing factors such as interference force and friction coefficient, while neglecting the vibration characteristics during the rotational states. Therefore, a finite element model is established by taking rotor ...  Read More

Research Paper Computational Fluid Dynamics (CFD)
A comprehensive numerical investigation of the effects of inlet operating conditions on the performance of 3-fluid liquid-to-air membrane energy exchangers

Nader Pourmahmoud; Aydin Zabihi

Volume 13, Issue 2 , March 2024, Pages 137-156

https://doi.org/10.22061/jcarme.2024.10107.2352

Abstract
  3-fluid liquid-to-air membrane energy exchangers (LAMEEs) are economic dehumidification systems; cooling tubes are put into dehumidifier liquid channels to regulate the internal temperature of the dehumidifier liquid. 3D computational fluid dynamics is used to simulate a 3-fluid LAMEE, and extra transfer ...  Read More

Research Paper Internal Combustion Engine
Effect of exhaust gas recirculation and constant pre-heated air temperature on the homogeneous charge compression ignition combustion engine with diesel and wppo 20 blend

R. Jyothu Naik; K. Thirupathi Reddy; S. Vishal Narayanrao

Volume 13, Issue 2 , March 2024, Pages 157-167

https://doi.org/10.22061/jcarme.2023.8413.2135

Abstract
  This article describes an experimental study on fueling the port fuel injection homogeneous charge compression ignition (PFI-HCCI) combustion engine with plastic oil that is generated from waste plastics through the pyrolysis method. This study tested different exhaust gas recirculation (EGR) levels ...  Read More

Research Paper 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

https://doi.org/10.22061/jcarme.2023.9030.2221

Abstract
  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

Research Paper Computational Fluid Dynamics (CFD)
Evaluation of omega-shaped Coriolis mass flow meter for laminar flow

Vikram Ashok Kolhe; Vishal D Chaudhari; Suyash Yashwant Pawar; Ravindra L Edlabadkar; Kailas Chandratre

Volume 13, Issue 2 , March 2024, Pages 181-190

https://doi.org/10.22061/jcarme.2023.9064.2223

Abstract
  Measuring flow rate precisely in laminar flow has been a difficult task, especially when utilizing a Coriolis mass flow meter (CMFM) for low flow rate measurements. The meter often under reads the mass flow rate, making it less useful in these conditions. The dominant factor affecting the CMFM's performance ...  Read More

Research Paper Computational Fluid Dynamics (CFD)
Effect of concentric and eccentric porous layer on forced convection heat transfer and fluid flow around a solid cylinder.

Alireza Alinezhad; Ataallah Soltani Goharrizi; Ataallah Kamyabi

Volume 13, Issue 2 , March 2024, Pages 191-206

https://doi.org/10.22061/jcarme.2024.8784.2182

Abstract
  In this paper, heat transfer and fluid flow around a solid cylinder wrapped with a porous layer in the channel were studied numerically by computational fluid dynamics (CFD). The homogeneous concentric and eccentric porous medium round a rigid, solid cylinder are supposed at local thermal equilibrium. ...  Read More

Research Paper Fatigue
Fatigue analysis of the railway wheels of the CRH2 high speed train 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

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

Rahim Shamsoddini; Bahador 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

Research Paper Dynamic Response
Dynamic analysis of multi-body dynamics model of the mold oscillator including self-excitation of the supporting system

Yonghui Park

Volume 13, Issue 2 , March 2024, Pages 229-239

https://doi.org/10.22061/jcarme.2023.9238.2237

Abstract
  A hydraulically driven mold oscillator is challenging to estimate the dynamic state variables precisely. Significantly, the additional stiffness effect of hydraulic oil is variable according to operating conditions, and it is hard to formulate it as a mathematical expression. This study investigates ...  Read More

Research Paper Optimization
Application of combined mathematical modeling/optimization methods coupled pitch controller in wind turbine using hybrid MLP neural network and firefly algorithm

Ehsanolah Assareh; Iman Poultangari; Afshin Ghanbarzadeh

Volume 13, Issue 2 , March 2024, Pages 241-250

https://doi.org/10.22061/jcarme.2018.2482.1238

Abstract
  A common method utilized in wind turbines is pitch angle control whereby via varying the angle of wind turbine blades around their own axis, power generated at high speeds of wind is held around maximum amount and is kept away from the severe mechanical stress on wind turbine. In current study, in order ...  Read More