Recent Trends in Fluid Dynamics Research: Select Proceedings of RTFDR 2021 (Lecture Notes in Mechanical Engineering)

Foreword
Preface
Acknowledgments
Contents
Editors and Contributors
Computational Study of Mixing of Shear Thinning Fluids with Modifications in Rushton Turbine Impeller
	1 Introduction
	2 Problem Statement
		2.1 Mathematical Model
		2.2 Governing Equations
	3 Numerical Method
	4 Validation
	5 Results and Discussion
		5.1 Effect on Power Consumed
		5.2 Effect on Mixing Time
		5.3 Effect on Cavern Size
	6 Conclusions
	References
Analysis of Room Airflow Characteristics Using CFD Approach
	1 Introduction
	2 Model Development
		2.1 Geometry and Mesh Generation
		2.2 Boundary Conditions
		2.3 Governing Equations and Solution
	3 Results and Discussion
		3.1 Velocity Contours
		3.2 Temperature Contours
		3.3 Comparison of Cross-Ventilation and Corner-Ventilation Arrangements
	4 Conclusions
	References
Slow Flow Past a Slip Sphere in Cell Model: Magnetic Effect
	1 Introduction
	2 Mathematical Formulation
	3 Solution of the Problem
	4 Boundary Conditions
	5 Drag Force
	6 Special Cases
		6.1 Case 1
		6.2 Case 2
		6.3 Case 3
		6.4 Case 4
		6.5 Case 5
		6.6 Case 6
	7 Graphical Representation
	8 Conclusion
	References
Inertial Migration of Cylindrical Particle in Stepped Channel—A Numerical Study
	1 Introduction
	2 Methodology
	3 Results and Discussion
		3.1 Validation
		3.2 Migration of Particle in Stepped Channel
	4 Conclusions
	References
Effect of Turbulence Model on the Hydrodynamics of Gas–solid Fluidized Bed
	1 Introduction
	2 Literature Review
	3 Scope of Work
	4 Model Description
		4.1 Governing Equation
		4.2 Interphase Momentum Exchange
		4.3 Numerics
	5 Results and Discussion
		5.1 Grid Independence Test
		5.2 Effect of Drag Models
		5.3 Effect of Turbulence Models
		5.4 Comparison of Simulated and Experimental Results
	6 Conclusions
	References
Steady Flow of Power-Law Fluids Past an Inclined Elliptic Cylinder
	1 Introduction
	2 Previous Work
	3 Mathematical Modeling
		3.1 Governing Equations
		3.2 Boundary Conditions
	4 Numerical Method
	5 Result and Discussion
		5.1 Validation Process
		5.2 Flow Phenomenon
	6 Conclusion
	References
Thermal Analysis of Flow Across Two Tandem Triangular Bluff Bodies in Unsteady Regime
	1 Introduction
	2 Model Description
	3 Structure of Grid and Analytical Procedure
	4 Productive Outcomes
		4.1 Validation of Results
		4.2 Flow Patterns
		4.3 Isotherm Patterns
		4.4 Drag Coefficient
		4.5 Average Nusselt Number
	5 Conclusion
	References
Free Convection in a Square Enclosure from Two Submerged Cylinders of Different Aspect Ratio in Shear-Thinning Fluids
	1 Introduction
	2 Problem Description and Governing Equations
	3 Numerical Methodology and Choice of Numerical Parameters
	4 Results and Discussion
		4.1 Validation of Results
		4.2 Streamline and Isothermal Contours
		4.3 Local Nusselt Number Distribution
		4.4 Surface Average Nusselt Number
	5 Conclusions
	References
Dynamic Study of Bird Strike on Rigid Plate
	1 Introduction
	2 Flow Modeling and Simulation
		2.1 Model Geometry
		2.2 Grid Generation
		2.3 Materials for Bird and Plate Model
		2.4 Governing Equations
		2.5 Initial and Boundary Conditions
	3 Results and Discussion
		3.1 Grid Convergence Analysis
		3.2 Pressure Vs. Time Plots
		3.3 Absolute Displacement
		3.4 Von Mises Stress
	4 Conclusions
	References
CFD Simulation and Experimental Investigation of the Hydrodynamic Behavior of a Gas–liquid–solid Fluidized Bed
	1 Introduction
	2 Hydrodynamic Flow Model
		2.1 Conservation Equations
		2.2 Interphase Exchange of Momentum
		2.3 Pressure Due to Solids
		2.4 Closure Laws for Turbulence
	3 Experimentation
	4 Numerical Methodology
		4.1 Geometry and Mesh
		4.2 Initial and Boundary Conditions
		4.3 Solution
	5 Results and Discussions
		5.1 Bed Expansion (Bed Voidage)
		5.2 Bed Pressure Drop
		5.3 Gas Holdup
	6 Conclusions
	References
Effect of Contact Angle on Droplet Generation in a T-Junction Microfluidic System
	1 Introduction
	2 Problem Statement
		2.1 Governing Equations and Boundary Conditions
		2.2 Solution Approach and Numerical Parameters
	3 Results and Discussion
		3.1 Validation of Results
		3.2 Instantaneous Phase Composition Distribution
		3.3 Droplet Length (L)
		3.4 Evolution of the Pressure Profiles
	4 Conclusions
	References
Slip Effects in Ionic Liquids Flow Through a Contraction–Expansion Microfluidic Device
	1 Introduction
	2 Mathematical Formulation
	3 Numerical Methodology
	4 Results and Discussions
	5 Conclusions
	References
Effect of Shear Rate on Non-Newtonian Droplet Generation in T-junction Microfluidic System
	1 Introduction
	2 Problem Statement and Numerical Model
	3 Methodology and Parameters
	4 Results and Discussion
		4.1 Validation of the Numerical Model
		4.2 Effects of Shear Rate and Power-Law Index
		4.3 Effect of Shear Rate on the Droplet Size
	5 Conclusions
	References
Effects of Inertial Force and Interfacial Tension on Droplet Generation in a T-junction Microfluidic System
	1 Background
		1.1 Introduction
		1.2 Objectives
	2 Modeling
		2.1 Problem Statement
		2.2 Mathematical Model
		2.3 Solution Aapproach and Numerical Parameters
	3 Results and Discussion
		3.1 Phase Flow Profiles
		3.2 Droplet Length and Detachment Time
	4 Conclusions
	References
Drag Reduction of Sphere Using Acrylic and Alkyd Paints: A New Approach
	1 Introduction
		1.1 Physics Around Spherical Particle
		1.2 Contribution of This Work
	2 Experimental
		2.1 Materials
		2.2 Experimental Setup and Procedure
	3 Result and Discussion
	4 Conclusion
	References
Low-Frequency Acoustics Assisted Propagating Fires and Related Implications
	1 Introduction
	2 Experimental Setup and Solution Methodology
		2.1 Forward Transfer Theory
		2.2 Measurement
	3 Result and Discussion
	4 Conclusion
		4.1 Suggested Applications Based on Results
	References
The Contraction of Froude’s Number Due to Inclined Weir on the Downstream of Cut Throat Flume
	1 Introduction
	2 Experimental Setup
	3 Experimental Procedure
	4 Results and Discussion
	5 Conclusion
	6 Appendix
	References
Modeling of Enhanced Oil Recovery Using Polyaniline
	1 Introduction
	2 Methodology
	3 Results and Discussion
		3.1 Polymer Adsorption
		3.2 Oil Saturation and Production
	4 Conclusion
	References
Effect of Different Shock Generator Configurations on Ethylene-Fuelled Transverse Injection-Based Scramjet Combustor
	1 Introduction
	2 Geometry and Mesh Generation
	3 Mathematical Model
	4 Validation of the Model
	5 Results and Discussion
	6 Conclusions
	References
CFD Simulation of EOR Technique, by Gas Injection of CO2-LPG Along with the Nanoparticles by Using the Eulerian–Eulerian Approach
	1 Introduction
		1.1 Gas Injection
		1.2 Thermal Method
		1.3 Polymer Injection
		1.4 Injection of Nanoparticles
	2 Numerical Implementation (Method)
		2.1 CFD Model and Geometry
		2.2 Meshing
		2.3 Governing Equations
	3 Results and Discussion
	4 Conclusion
	References
Numerical Instability Assessment of Natural Circulation Loop Subjected to Different Heating Conditions
	1 Introduction
	2 Model and Simulation
	3 Governing Equations
	4 Simulation Detail
	5 Validation of the Results
	6 Results and Discussion
		6.1 Transient Variation of Temperature
		6.2 Transient Variation of Mass Flow Rate
		6.3 Transient Variation of Velocity
		6.4 Effect of Operating Pressure on Mass Flow Rate and Flow Instability
	7 Conclusion
	References
Comparative Numerical Appraisal of Subcritical and Supercritical CO2-Based Natural Circulation Loop
	1 Introduction
	2 Physical Model
		2.1 Grid Independence Study
	3 Mathematical Formulation
	4 Simulation Detail
	5 Validation
	6 Results and Discussion
		6.1 Transient Variation of Temperature
		6.2 Fluid Flow Behaviour
		6.3 Nusselt Number
	7 Conclusions
	References
An Inverse Design Method for Caudal Fin of a Biomimetic Propulsion System for AUVs Using Artificial Neural Networks
	1 Introduction
	2 Methodology
		2.1 Generation of Data for ANN
		2.2 Developing ANN Architecture for Inverse Design
	3 Results and Discussions
		3.1 Inverse Design for Caudal Peduncle
		3.2 Inverse Design for Leading-Edge Angle
	4 Conclusion
	References