Fluid Mechanics and Fluid Power, Volume 5 : Select Proceedings of FMFP 2022

• Autore: Singh Krishna Mohan
• Pubblicazione: Singapore : , : Springer, , 2024; ©2024
• Edizione: 1st ed.
• Descrizione fisica: 1 online resource (824 pages)
• Altri autori: DuttaSushanta SubudhiSudhakar SinghNikhil Kumar
• Nota di contenuto: Intro -- Contents -- About the Editors -- Multiphase Flow -- Comparative CmFD Study on Geometric and Algebraic Coupled Level Set and Volume of Fluid Methods -- 1 Introduction -- 2 Governing Equations -- 3 Numerical Methodology -- 3.1 CLSVOF Advection Equations -- 3.2 Navier-Stokes Equations -- 3.3 Solution Algorithm -- 4 Results and Discussion -- 4.1 Static Droplet -- 4.2 Dam Break -- 4.3 Buoyant Rise of a Bubble -- 5 Conclusions -- References -- Numerical Modelling of a Binary Droplet on Solid Surface -- 1 Introduction -- 2 Numerical Modelling -- 2.1 Geometry Description -- 2.2 Governing Equation -- 2.3 Boundary Conditions for the Binary Liquid Sessile Droplet -- 2.4 Algorithm -- 3 Code Validation -- 4 Conclusion -- References -- Characterization of the Spray Flow Field at the Exit of a Pintle Injector -- 1 Introduction -- 2 Literature Review and Objectives -- 3 Materials and Methods -- 3.1 Design of the Pintle Injector -- 3.2 Test Conditions -- 3.3 Diagnostic Techniques -- 4 Results and Discussion -- 4.1 Structure of the Pintle Injector Spray -- 4.2 Variation of Cone Angle and Penetration Length -- 4.3 Droplet Velocity Field at the Exit of the Injector -- 5 Conclusions -- References -- Experimental Investigation of Vapour Bubble Condensation in Subcooled Water Using Different Nozzles -- 1 Introduction -- 2 Literature Review and Objective -- 3 Materials and Methods -- 3.1 Image Processing Method -- 4 Results and Discussion -- 4.1 Single Bubble Condensation -- 4.2 Bubble Formation Frequency -- 4.3 Maximum Bubble Radius -- 4.4 Effect of Nozzle Diameter and Pool Temperature on Bubble Collapsing Duration -- 5 Conclusions -- References -- VOF Simulations of Evaporation and Condensation Phenomenon Inside a Closed-Loop Thermosyphon -- 1 Introduction -- 2 Literature Review and Objective -- 3 Experimental -- 3.1 Experimental Setup. ; 3.2 Experimental Procedure -- 4 Numerical Methods -- 4.1 Governing Equations -- 4.2 Geometry and Boundary Conditions -- 5 Results and Discussion -- 5.1 Validation -- 5.2 Temperature Distributions -- 5.3 Evaporation -- 5.4 Condensation of Water Film -- 5.5 Conductivity Calculations -- 6 Conclusions -- References -- Hydrodynamics of Droplet Generation Under Squeezing Regime in a T-junction Cylindrical Microfluidic System -- 1 Introduction -- 2 Mathematical Modeling -- 2.1 Problem Statement -- 2.2 Governing Equations -- 2.3 Computational Approach -- 3 Results and Discussion -- 3.1 Phase Profiles -- 3.2 Droplet Length -- 3.3 Instantaneous Pressure Profiles -- 3.4 Velocity Profiles and Recirculation Zones -- 4 Conclusions -- References -- Coalescence of Disc-Shaped Falling Droplets Inside Quiescent Liquid Media -- 1 Introduction -- 2 Objective -- 3 Materials and Methods -- 4 Results and Discussion -- 5 Conclusions -- References -- Effects of Power Law Fluid Characteristics on Core-Annular Flow in a Horizontal Pipe -- 1 Introduction -- 2 Flow Equations -- 2.1 Core Fluid -- 2.2 Annular Fluid -- 2.3 Boundary Conditions -- 3 Results and Discussion -- 3.1 Increasing Viscosity of Core Fluid, Both Fluids Being Newtonian -- 3.2 Varying Flow-Behaviour Index of Low Viscosity Core Fluid -- 3.3 Varying Flow-Behaviour Index of Highly-Viscous Core Fluid -- 3.4 Varying Flow-Behaviour Index of Low-Viscous Annular Fluid -- 4 Conclusions -- References -- Evaporation Dynamics of Bidispersed Colloidal Suspension Droplets on Hydrophilic Substrates Under Different Relative Humidity and Ambient Temperature -- 1 Introduction -- 2 Literature Review and Objective -- 3 Materials and Methods -- 3.1 Preparation of Colloidal Solution and Droplet Generation: -- 3.2 Experimental Set-Up -- 4 Results and Discussion -- 5 Conclusions -- References. ; Comparative CFD Analysis of Heat Transfer and Melting Characteristics of the PCM in Enclosures with Different Fin Configurations -- 1 Introduction -- 2 Literature Review and Objective -- 3 Geometrical Description -- 3.1 Numerical Methodology and Governing Equation -- 3.2 Initial and Boundary Conditions -- 3.3 Grid Independency Test and Model Validation -- 4 Results and Discussion -- 4.1 Melting Characteristics of the PCM -- 4.2 Enhancement Ratio -- 4.3 Evolution of Stream Lines -- 5 Conclusions -- References -- Influence of Contact Line Velocity Implementation in Dynamic Contact Angle Models for Droplet Bouncing and Non-bouncing Dynamics on a Solid Substrate -- 1 Introduction -- 2 Literature Review and Objective -- 3 Materials and Methods -- 3.1 Numerical Methodology -- 3.2 Dynamic Contact Angle Modelling and Contact Line Velocity Approximation -- 4 Results and Discussion -- 4.1 Comparison of Experimental and Numerically Obtained Droplet Wetted Diameters with Non-Bouncing Mood -- 4.2 Comparison of Experimental and Numerical Maximum Droplet Heights with Non-Bouncing Mood -- 4.3 Comparison of Experimental and Numerically Calculated Droplet Wetted Diameters with Bouncing Mood -- 4.4 A Comparison of Experimental and Numerically Calculated Droplet Maximum Height with Bouncing Mood -- 5 Conclusions -- References -- Droplet Impact and Wetting on a Micropillared Surface -- 1 Introduction -- 2 Methodology -- 2.1 Fabrication Process for Making Micropillared Surfaces -- 2.2 Generation and High-Speed Visualization of a Droplet -- 3 Results and Discussion -- 3.1 Wetting Characteristics -- 3.2 Effect of Weber Number for Non-bouncing Condition -- 4 Conclusions -- References -- Multiphase Modelling of Thin Film Flow Over the Vertical Plate Under Gravity in Pseudo-Laminar Region -- 1 Introduction -- 2 Literature Review and Objective -- 3 Materials and Methods. ; 3.1 Simulation Modelling -- 3.2 Analytical Modelling -- 4 Results and Discussion -- 4.1 Grid Independency Test -- 4.2 Validation with Kapitsa Equation -- 4.3 Variation of Film Thickness Along the Plate Length -- 4.4 Variation of Film Reynolds Number Along the Plate Length -- 4.5 Velocity Profile of Film -- 4.6 Variation of Wall Shear Stress Along the Plate Length -- 4.7 Variation of Film Thickness with Time -- 5 Conclusions -- References -- Evolution of Marangoni Thermo-Hydrodynamics Within Evaporating Sessile Droplets -- 1 Introduction -- 2 Literature Review and Objective -- 3 Mathematical Formulation -- 3.1 Governing Equations -- 3.2 Initial and Boundary Conditions -- 3.3 Numerical Scheme -- 4 Results and Discussion -- 4.1 Temporal Variation of Internal Velocity Field and Temperature Distribution -- 4.2 Influence of Contact Angle on the Internal Circulation Velocity and Temperature -- 5 Conclusions -- References -- Investigation of Liquid Vaporization Characteristics at Low-Pressure Conditions -- 1 Introduction -- 2 Experimental Setup and Procedure -- 3 Performance Characteristics -- 4 Results and Discussion -- 4.1 Temperature Characteristics -- 4.2 Mass Evaporated (mw,v) -- 4.3 Nonequilibrium Fraction (NEF) -- 4.4 Heat Transfer Coefficient (h) -- 5 Conclusions -- References -- Effect of Surface Structures on Droplet Impact Over Flat and Cylindrical Surfaces -- 1 Introduction -- 2 Literature Review and Objective -- 3 Materials and Methods -- 3.1 Mathematical Modeling -- 3.2 Geometric Modeling -- 3.3 Validation of Numerical Model -- 4 Results and Discussion -- 4.1 Impact of Droplet on Structured Flat Surfaces -- 4.2 Impact of Droplet on Structured Cylindrical Surfaces -- 5 Conclusion -- References -- Numerical Investigation on Bubble Dynamics Using DOE Approach for Cavitation Machining Process -- 1 Introduction -- 2 Literature Review and Objective. ; 3 Numerical Model and Methodology -- 3.1 Numerical Model -- 3.2 Parameters Selection -- 3.3 Factorial Design -- 4 Results and Discussion -- 4.1 Significant Parameters -- 4.2 Confirmation Study -- 5 Conclusions -- References -- Effect of Surface Tension on the Thermal Performance of Pulsating Heat Pipe with and Without Surfactant -- 1 Introduction -- 2 Literature Review and Objective -- 3 Experimental Setup -- 3.1 Experimental Procedure -- 4 Results and Discussion -- 4.1 Thermodynamic Behavior of PHP -- 5 Conclusions -- References -- Study of Physical Characteristics of a Bi-porous Composite Capillary Wick for a Flat Miniature Loop Heat Pipe -- 1 Introduction -- 2 Literature Review and Objective -- 3 Methodology -- 4 Characterization of Wick Parameters -- 4.1 Capillary Rise -- 4.2 Wettability -- 4.3 Porosity -- 4.4 Permeability -- 4.5 Pore Size -- 4.6 XRD Analysis -- 5 Conclusions -- References -- Influence of Air Injection on Cavitation in a Convergent-Divergent Nozzle -- 1 Introduction -- 2 Numerical Scheme -- 2.1 (8) -- 3 Results and Discussion -- 4 Conclusions -- References -- Investigation of the Droplet Impingement on a Hydrophobic Surface with a Fixed Particle -- 1 Introduction -- 2 Methodology -- 3 Results and Discussion -- 4 Conclusions -- References -- Effect of Impact Velocity on Spreading and Evaporation of a Volatile Droplet on a Non-porous Substrate -- 1 Introduction -- 2 Materials and Methods -- 2.1 Experimental Setup -- 2.2 Image Processing -- 3 Results and Discussion -- 3.1 Regimes of Droplet Impact Outcome -- 3.2 Influence of Droplet Height/Velocity on Impact Outcome -- 4 Conclusions -- References -- Study of Liquid-Vapor Oscillating Nature in a U-Shaped Tube for a Pulsating Heat Pipe -- 1 Introduction -- 2 Theoretical Model -- 2.1 Governing Equations -- 2.2 Non-dimensionalization of Governing Equations. ; 2.3 Numerical Solution of Non-dimensionalize Equations.
• Titolo autorizzato: Fluid Mechanics and Fluid Power, Volume 5
• ISBN: 981-9960-74-6
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910842281403321
• Lo trovi qui: Univ. Federico II
• Serie: Lecture Notes in Mechanical Engineering Series