2D Free Jet Simulations (FLUENT)

Slides:

Advertisements

Similar presentations

Lecture 20: Laminar Non-premixed Flames – Introduction, Non-reacting Jets, Simplified Description of Laminar Non- premixed Flames Yi versus f Experimental.

Advertisements

Outline Overview of Pipe Flow CFD Process ANSYS Workbench

Basic Governing Differential Equations

Dr. R. Nagarajan Professor Dept of Chemical Engineering IIT Madras Advanced Transport Phenomena Module 4 - Lecture 15 Momentum Transport: Steady Laminar.

External Convection: Laminar Flat Plate

Output - Derived Variables Derived Variables are quantities evaluated from the primitive (or solved) variables by PHOENICS. It means, PHOENICS first solve.

Gaseous And Particulate Dispersion In Street Canyons

CFD and Thermal Stress Analysis of Helium-Cooled Divertor Concepts Presented by: X.R. Wang Contributors: R. Raffray and S. Malang University of California,

Project #4: Simulation of Fluid Flow in the Screen-Bounded Channel in a Fiber Separator Lana Sneath and Sandra Hernandez 4 th year - Biomedical Engineering.

Pharos University ME 352 Fluid Mechanics II

AME 513 Principles of Combustion

Continuity Equation Tutorial

3D Hg Jet Simulations Yan Zhan June 13, Outline Hg Jet Inlet Condition – Case1: Outlet of the pipe without a bend and a weld – Case2: Outlet of.

Flow over an Obstruction MECH 523 Applied Computational Fluid Dynamics Presented by Srinivasan C Rasipuram.

Monroe L. Weber-Shirk S chool of Civil and Environmental Engineering Basic Governing Differential Equations CEE 331 June 12, 2015.

Additional Calculations of the MERIT Mercury Jet Using the UCLA HIMAG Code Neil Morley and Manmeet Narula Fusion Science and Technology Group, UCLA

The structural and Fluid flow analyses of the Hydrogen Absorber Window for the Muon Cooling collaboration project Presented at the MICE meeting at IIT.

Thermal Analysis of Helium- Cooled T-tube Divertor S. Shin, S. I. Abdel-Khalik, and M. Yoda ARIES Meeting, Madison (June 14-15, 2005) G. W. Woodruff School.

Preliminary Assessment of Porous Gas-Cooled and Thin- Liquid-Protected Divertors S. I. Abdel-Khalik, S. Shin, and M. Yoda ARIES Meeting, UCSD (March 2004)

Design of Scintillator Die Fermi National Accelerator Laboratory Department of Mechanical Engineering Northern Illinois University.

CHE/ME 109 Heat Transfer in Electronics LECTURE 18 – FLOW IN TUBES.

1 3D Simulations for the Elliptic Jet W. Bo (Aug 12, 2009) Parameters: Length = 8cm Elliptic jet: Major radius = 0.8cm, Minor radius = 0.3cm Striganov’s.

Lecture 7 Exact solutions

1 Example of Groundwater Primer - Yours will be fluid mechanics primer – see homework assignment sheet

Monroe L. Weber-Shirk S chool of Civil and Environmental Engineering Basic Governing Differential Equations CEE 331 July 14, 2015 CEE 331 July 14, 2015.

Laminar Flow in Pipes and Annuli

Chapter 7 Sections 7.4 through 7.8

Application of the Momentum Equation

1 Institute for Fluid Mechanics and Heat Transfer Conex mid-term meeting, Oct 28th 2004, Warsaw 1 Numerical simulation of the flow in an experimental device.

MULTLAB FEM-UNICAMP UNICAMP SETTING SOURCES & BOUNDARY CONDITIONS USING VR Section 7 of TR326 describes Sources and B.C. 5n the form of object and its.

1 MAE 5310: COMBUSTION FUNDAMENTALS Introduction to Laminar Diffusion Flames: Non-Reacting Constant Density Laminar Jets Mechanical and Aerospace Engineering.

Fluid Report Presentation Onur Erkal Korgun Koyunpınar Korhan Türker Hakan Uzuner.

30 th June 20111Enrico Da Riva, V. Rao Parametric study using Empirical Results June 30 th 2011 Bdg 298 Enrico Da Riva,Vinod Singh Rao CFD GTK.

Chapter 7 External Convection

Dr. R. Nagarajan Professor Dept of Chemical Engineering IIT Madras

Convection: Internal Flow ( )

Simulation Of 2D Hg Jet Using Implicit LES Method Yan March. 20 th

CFD Modelling of the Flow Inside an LC Refiner COST FP1005 / SIG 43 meeting, X.2012, Trondheim 1 CFD Modelling of the Flow Inside an LC Refiner Dariusz.

CFD Lab 1 Simulation of Turbulent Pipe Flow Seong Mo Yeon, Timur Dogan, and Michael Conger 10/07/2015.

Statika Fluida Section 3. Fluid Dynamics Objectives Introduce concepts necessary to analyse fluids in motion Identify differences between Steady/unsteady.

1 CASE 2: Modeling of a synthetic jet in a cross flow Williamsburg, Virginia, USA March 29 th -31 th 2004 C. Marongiu 1, G. Iaccarino 2 1 CIRA Italian.

CHAPTER 9 Velocity Profiles for Circular Sections and Flow in Noncircular Sections.

Potential Flow and Computational Fluid Dynamics Numerical Analysis C8.3 Saleh David Ramezani BIEN 301 February 14, 2007.

Tony Arts Carlo Benocci Patrick Rambaud

Basic equations of fluid flow. The principles of physics most useful in the applications of the fluid mechanics are mass- balance, or continuity ; the.

Mi9 Some experimental measurements of the Diffuser flow in a Ducted Wind Turbine assisted by two ejectors Kypros F. Milidonis Department of Mechanical.

Indian Institute of Space Science and Technology STUDY OF EFFECT OF GAS INJECTION OVER A TORPEDO ON FLOW-FIELD USING CFD.

Momentum Equation and its Applications

Space Air Diffusion. Fundamentals  Objectives – thermal comfort and indoor air quality – even space air conditions – acceptable air cleanliness – acceptable.

Internal Flow: General Considerations. Entrance Conditions Must distinguish between entrance and fully developed regions. Hydrodynamic Effects: Assume.

Date of download: 10/9/2017 Copyright © ASME. All rights reserved.

Internal Convection: Overview

Chapter 8: Internal Flow

2D Free Jet Simulations (FLUENT)

From: On Development of a Semimechanistic Wall Boiling Model

2D Jet Simulation Testing

Date of download: 11/1/2017 Copyright © ASME. All rights reserved.

Date of download: 12/19/2017 Copyright © ASME. All rights reserved.

Date of download: 12/23/2017 Copyright © ASME. All rights reserved.

Drag and Momentum Balance for Flow Around a Cylinder

Comparison between Serrated & Notched Serrated Heat Exchanger Fin Performance Presented by NABILA RUBAIYA.

Introductory FLUENT Training

Example: Polymer Extrusion

All dimension in mm Set A

Effect of Flow over a Cylinder MAE 5130 Viscous Flow Final Project

Internal Flow: General Considerations

 More Fluids  November 30,  More Fluids  November 30, 2010.

Heat Transfer Correlations for Internal Flow

Boundary Layer Correction

Chapter 9 Analysis of a Differential Fluid Element in Laminar Flow

Presentation transcript:

2D Free Jet Simulations (FLUENT) Oct. 31 2013 yan

Outline 2D Laminar Plane Jet 2D Laminar Round Jet Theoretical Solutions Numerical Calculations (FLUENT code) Mean Stream Velocity Jet Half Width Momentum Thickness 2D Laminar Round Jet

2D Laminar Plane Jet ― Theoretical Solutions Air emerges into a still air from a 2D slot at x=0 Constant momentum flux (J) at any cross section Spread at constant pressure (P = 1 bar) Red = 400 ( ux = 0.64 m/s） Temperature = 300 K ρ = 1.225 kg/m3；ν = 1.46073×10-5 m2/s； Fig.1 Typical free 2D laminar plane jet streamline pattern Laminar Plane Jet (Schlichting 1933)

2D Laminar Plane Jet ― Numerical Calculations Inlet velocity Wall Pressure outlet Symmetrical axis Interior Halved geometry

2D Laminar Plane Jet ― Numerical Calculations Centerline Velocity( ) 𝒙 𝒖 𝒄 0.01 0.6388123 0.05 0.63888186 0.1 0.63220511 0.2 0.6074034 0.3 0.5727235 0.4 0.537284 0.5 0.5115343 0.6 0.49355775 0.7 0.477681 0.8 0.4557375 0.9 0.44144434 White’s book PDF page277 (J = 0.0051)

2D Laminar Plane Jet ― Numerical Calculations Mean Stream Velocity ( ) x/d = 20 x/d = 10 The plot shows the flow profile along the radial direction of the flow.

2D Laminar Plane Jet ― Numerical Calculations Mean Stream Velocity ( ) x/d = 30 x/d = 40 The plot shows the flow profile along the radial direction of the flow.

2D Laminar Plane Jet ― Numerical Calculations Mean Stream Velocity ( ) x/d = 60 x/d = 50 The plot shows the flow profile along the radial direction of the flow.

2D Laminar Plane Jet ― Numerical Calculations Mean Stream Velocity ( ) x/d = 70 x/d = 80 The plot shows the flow profile along the radial direction of the flow.

2D Laminar Plane Jet ― Numerical Calculations Mean Stream Velocity ( ) x/d = 90 x/d = 100 The plot shows the flow profile along the radial direction of the flow.

2D Laminar Plane Jet ― Numerical Calculations Jet Half Width ( ) 𝒙/d 𝒓 𝟏/𝟐 /d 1 0.539526 5 0.596278 10 0.65713 20 0.733453 30 0.836392 40 0.925598 50 1.00985 60 1.15413 70 1.21262 80 1.32187 90 1.74276 100 2.17414 Half Width: Radial distance from the axis to the position at the which the absolute value of the axial velocity drops to half its value on the axis. The plot shows the relationship between jet half width and distance from the jet nozzle.

2D Laminar Plane Jet ― Numerical Calculations Jet Self-similarity The plot shows the flow profile along the radial direction of the flow.

2D Laminar Plane Jet ― Numerical Calculations Momentum Thickness ( ) 𝒙 𝜽 0.01 1.97590e-4 0.05 9.08948e-4 0.1 1.67433e-3 0.2 2.57365e-3 0.3 4.28040e-3 0.4 3.33453e-3 0.5 4.26769e-3 0.6 5.51115e-3 0.7 6.22347e-3 0.8 7.93727e-3 0.9 1.01272e-2 1.0 9.29760e-3 Plot shows the changes in momentum thickness at different locations downstream of the jet.

Outline 2D Laminar Plane Jet 2D Laminar Round Jet Theoretical Solutions Numerical Calculations (FLUENT code) Mean Stream Velocity Jet Half Width Momentum Thickness 2D Laminar Round Jet

2D Laminar Round Jet ― Theoretical Solutions Air emerges into a still air from a circular orifice at x=0 Constant momentum flux (J) at any cross section Spread at constant pressure (P = 1 bar) Red = 400 ( u = 0.64 m/s） Temperature = 300 K ρ = 1.16 kg/m3；ν = 1.6×10-5 m2/s； Narrow Axisymmetric Jet (Schlichting 1933)

2D Laminar Round Jet ― Numerical Calculations Inlet velocity Wall Pressure outlet Axial symmetirc Interior Halved geometry

2D Laminar Round Jet ― Numerical Calculations Centerline Velocity( ) 𝒙 𝒖 𝒄 0.01 0.63920647 0.05 0.63778848 0.1 0.610317 0.2 0.5230199 0.3 0.4403066 0.4 0.372688 0.5 0.32611621 0.6 0.2895635 0.7 0.260005 0.8 0.2357024 0.9 0.2153695

2D Laminar Round Jet ― Numerical Calculations Mean Stream Velocity ( ) x/d = 20 x/d = 10 The plot shows the flow profile along the radial direction of the flow.

2D Laminar Plane Jet ― Numerical Calculations Mean Stream Velocity ( ) x/d = 30 x/d = 40 The plot shows the flow profile along the radial direction of the flow.

2D Laminar Plane Jet ― Numerical Calculations Mean Stream Velocity ( ) x/d = 60 x/d = 50 The plot shows the flow profile along the radial direction of the flow.

2D Laminar Plane Jet ― Numerical Calculations Mean Stream Velocity ( ) x/d = 70 x/d = 80 The plot shows the flow profile along the radial direction of the flow.

2D Laminar Plane Jet ― Numerical Calculations Mean Stream Velocity ( ) x/d = 90 x/d = 100 The plot shows the flow profile along the radial direction of the flow.

2D Laminar Round Jet ― Numerical Calculations Jet Half Width ( ) 𝒙/d 𝒓 𝟏/𝟐 /d 1 0.462644 5 0.397387 10 0.603436 20 0.691654 30 0.822712 40 0.977359 50 1.07118 60 1.20262 70 1.33417 80 1.46478 90 1.59214 100 1.69765 Half Width: Radial distance from the axis to the position at the which the absolute value of the axial velocity drops to half its value on the axis. The plot shows the relationship between jet half width and distance from the jet nozzle.

2D Laminar Round Jet ― Numerical Calculations Jet Self-similarity The plot shows the flow profile along the radial direction of the flow.

2D Laminar Round Jet ― Numerical Calculations Momentum Thickness ( ) 𝒙 𝜽/𝐝 1 4.879917e-2 5 1.429468e-1 10 2.109622e-1 20 2.877028e-1 30 3.523778e-1 40 4.257012e-1 50 4.583403e-1 60 5.047484e-1 70 5.455564e-1 80 5.808257e-1 90 6.108572e-1 100 6.309687e-1 Plot shows the changes in momentum thickness at different locations downstream of the jet.