Editor: Zied Driss

Series Title: Mechanical Engineering Technologies and Applications

Mechanical Engineering Technologies and Applications Vol. 3

Volume 3

eBook: US $39 Special Offer (PDF + Printed Copy): US $67
Printed Copy: US $47
Library License: US $156
ISSN: 2811-0463 (Print)
ISSN: 2811-0455 (Online)
ISBN: 978-981-5179-28-6 (Print)
ISBN: 978-981-5179-27-9 (Online)
Year of Publication: 2023
DOI: 10.2174/97898151792791230301

Introduction

This book focuses on cases and studies of interest to mechanical engineers and industrial technicians. The considered applications in this volume are widely used in several industrial fields particularly in the automotive and aviation industries. Readers will understand the theory and techniques which are used in each application covered in each chapter.

Volume 3 includes the following topics:

      1. Numerical simulations of three-dimensional laminar mixed convection heat transfer of water-based-Al2O3 nanofluid in an open cubic cavity with a heated block.

      2. Nonlinear formulations of Element-Free Galerkin Method (EFGM) for large deformation analysis of Ogden’s hyperelastic materials, emphasizing incompressibility and mesh distortion avoidance.

      3. Development of a 3D numerical model with LS-DYNA using a coupled SPH-FEM method to simulate hydraulic behavior of a Ski-Jump Spillway with dentates, showcasing precision through validation.

      4. Exploration of enhancing the inlet system of an LPG-H2 fueled engine using a static inclined blade turbine, analyzed through Computational Fluid Dynamics (CFD) simulations.

      5. Effective utilization of Artificial Neural Networks (ANN) in heat transfer applications, addressing issues like fouling in heat exchangers, showcasing their accuracy compared to experimental data.

      6. Investigation of the impact of nitrogen concentration on the structure and properties of ZrN coatings deposited by magnetron sputtering, evaluating variations in structural and mechanical properties.

      7. Forced convection in a horizontal cylindrical pipe with pseudoplastic fluid, considering uniform constant heat flux and uniform temperature as boundary conditions.

      8. Modeling and experimental study of a water solar collector coupled to an optimized solar still, aiming to enhance freshwater production in a solar distillation system under specific climatic conditions.

      9. Exploration of the effect of film thickness on the structure and properties of Ti-N films deposited by magnetron sputtering, utilizing theoretical and experimental analysis to confirm the rock salt TiN structure.

The presented case studies and development approaches aim to provide readers with basic and applied information broadly related to mechanical engineering and technology.

Readership

Graduate students, PhD candidates and professionals seeking basic and applied information related to mechanical engineering and technology.

Preface

This book focuses on the dissemination of information of permanent interest in mechanic applications and engineering technology. The considered applications are widely used in several industrial fields particularly in those of automotive and aerospace aspects. Many features related to Mechanic processes are presented. The presented case studies and development approaches aim to provide the readers, such as engineers and PhD students, with basic and applied studies broadly related to the Mechanic Applications and Engineering Technology.

The first chapter reports numerical simulations of three-dimensional laminar mixed convection heat transfer of water-based-Al2O3 nanofluid in an open cubic cavity with a heated block. Ansys-Fluent was used to simulate 3D flows with heat transfer.

In the second chapter, nonlinear formulations of the Element-Free Galerkin Method (EFGM) are presented for the large deformation analysis of Ogden’s hyperelastic materials, which are considered incompressible. The EFGM requires no explicit mesh in computation and therefore avoids mesh distortion difficulties.

In the third chapter, a 3D numerical modeling with the LS-DYNA commercial code was developed using a coupled SPH-FEM method (Smoothed Particle Hydrodynamics (SPH) and Finite element method (FEM)) to simulate the hydraulic behavior of a physical model Ski-Jump Spillway with dentates. Several examples of validation, taken from the literature, demonstrate the precision and reliability of developed numerical models.

The fourth chapter focuses on improving the inlet system of an LPG-H2 fueled engine by adding a static inclined blade turbine. It is a horizontal rotational axis turbine with four blades evenly distributed with an angle of inclination of 35°. Computational Fluid Dynamics (CFD) simulations are used in order to capture the in-cylinder flow motion and its influence on the flow characteristics. The method is assessed by application to flow calculations in the intake manifold for 3000 rpm engine speed.

The purpose of the fifth chapter is to explain the effective utilization of the Artificial Neural Networks (ANN) model in heat transfer applications for thermal problems, like fouling in a heat exchanger. The application of the ANN tool with different techniques and structures shows that it is an effective and powerful tool due to its small errors in comparison with experimental data.

The sixth chapter investigates the effect of nitrogen concentration, as a reactive gas, on the structure and properties of ZrN coatings deposited by magnetron sputtering. The structural and morphological properties of Zr-N films were described, followed by a detailed investigation of the mechanical properties of Zr-N coatings. By varying the nitrogen percentage, the structure and the hardness of Zr-N films were evaluated in a wide range.

In the seventh chapter, the problem of forced convection in a simple horizontal cylindrical pipe is studied. Two boundary conditions are considered, uniform constant heat flux and uniform temperature. The fluid to be heated is pseudoplastic, modeled by the Ostwald law (n ≤ 1.0). A fully developed velocity profile is assumed at the pipe entrance. The energy equation is solved numerically with a simple implicit finite difference scheme.

The eighth chapter presents the modeling and the experimental study of a water solar collector coupled to an optimized solar still developed in order to boost freshwater production in a solar distillation system. The desalination process is currently operated under the climatological conditions of Sfax, Tunisia. To numerically simulate the water solar collector, a dynamic model based on heat and mass transfer of the water solar collector was developed.

In the ninth chapter, the effect of film thickness on the structure and properties of Ti-N films deposited by magnetron sputtering are investigated. The structural properties of Ti-N films were described, followed by a detailed investigation into their mechanical properties by using theoretical and experimental analysis. The theoretical calculation presented the Rocksalt TiN structure with a lattice parameter of about 4.255 Å are confirmed by X-ray diffraction.

Zied Driss
Laboratory of Electromechanical Systems (LASEM)
National School of Engineers of Sfax (ENIS)
University of Sfax (US)
Sfax, Tunisia