OpenFOAM/C3/Simulating-Hagen-Poiseuille-flow/English-timed - Revision history

DeepaVedartham at 11:29, 8 April 2019

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DeepaVedartham at 11:23, 8 April 2019

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PoojaMoolya at 13:15, 20 February 2017

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Sandhya.np14 at 12:46, 30 June 2016

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Sandhya.np14 at 12:15, 30 June 2016

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Sandhya.np14 at 10:27, 30 June 2016

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Sandhya.np14 at 09:48, 30 June 2016

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Pratik kamble: Created page with "{|Border=1 |'''Time''' |'''Narration''' |- |00:02 | Hello and welcome to the spoken tutorial on simulating '''Hagen-Poiseuille flow''' in '''OpenFOAM'''. |- | 00:09 | In thi..."

2015-12-01T09:56:40Z

Created page with "{|Border=1 |'''Time''' |'''Narration''' |- |00:02 | Hello and welcome to the spoken tutorial on simulating '''Hagen-Poiseuille flow''' in '''OpenFOAM'''. |- | 00:09 | In thi..."

New page

{|Border=1
|'''Time'''
|'''Narration'''

|-
|00:02
| Hello and welcome to the spoken tutorial on simulating '''Hagen-Poiseuille flow''' in '''OpenFOAM'''.

|-
| 00:09
| In this tutorial we will see

To create and '''mesh 3D cylindrical pipe.'''

To '''simulate '''the '''Hagen-Poiseuille flow''' having''' fixed pressure ratio''' across '''boundaries.''' and To visualize the '''velocity contour '''in '''ParaView'''.

|-
| 00:25
| To record this tutorial, I am using
'''Linux Operating system Ubuntu '''12.04
'''OpenFOAM version '''2.1.1 and '''ParaView''' '''version '''3.12.0

|-
| 00:38
| To practice this tutorial learner should have the knowledge of Basic '''Fluid Dynamics'''and '''Hagen-Poiseuille''' '''flow'''

|-
| 00:46
| Here is, '''Hagen-Poiseuille''' '''Flow''' Diagram. We can see the '''dimensions and boundaries''' of the pipe.

|-
| 00:52
|'''Viscosity''' of the fluid used, that is, water is given.Pressure at the '''inlet''' is 20''' Pascals''' and at the '''outlet''' is 0''' Pascals.'''

|-
| 01:04
|As it is an '''incompressible flow''', only the pressure difference is of importance.

|-
| 01:10
| '''Formulas and Analytical Solution:''' For '''Hagen-Poiseuille flow,''''''Pressure drop''' along the pipe is: ('''P1 minus P2''') equals ('''32 mew Uaverage L''') upon ('''D square''')

|-
| 01:25
|By substituting the values from the previous diagram, we get,'''Uaverage''' equals to 0.208 '''m/s''''''Maximum Velocity''' is given as,Two times the '''average velocity''', which would be, 0.416''' m/s'''

|-
| 01:44
|'''Reynolds Number''' for the flow is,'''Uaverage '''into '''D '''upon '''nu''', that comes out to be, '''2080'''Hence, the flow is '''transient'''.

|-
| 01:56
| Type of solver used here is,'''IcoFOAM'''

|-
| 02:01
|It is a '''Transient Solver''' It is used for '''incompressible, laminar flow of Newtonian fluids.'''

|-
| 02:08
| '''Pressure Boundary Conditions '''used,At '''Inlet: fixedPressure'''At '''Outlet: fixedPressure'''

At '''Walls: ZeroGradient'''

|-
|02:19
| '''Velocity Boundary Conditions''' used,At '''Inlet: pressureInletVelocity''' At '''Outlet: zeroGradient''' At '''Walls: fixedValue'''

|-
| 02:28
| For executing this case,First, Let's create the '''case directory''' in the ''''icoFoam'''' folder.
And Give it some name.I have named it as''' '3dpipe''''.

|-
| 02:41
| To know the location of this folder, go through the tutorial on '''lid driven cavity'''.Copy this ''''0' (zero), 'constant'''' and ''''system'''' folders of '''lid driven cavity''' problem in the newly created folder.

|-
| 02:54
| Let's go inside the ''''3dpipe'''' folder.

|-
| 02:58
| I have already copied the folders into my '''3dpipe''' folder and modified the files in it.

|-
| 03:05
| Now, let's go into the ''''0'''' folder.And open the ''''P'''' file.This is the''' pressure boundary condition''' file.

|-
| 03:14
| Note that the dimensions are in '''(meter square) per (second square)''' '''(m2/s2)'''.

|-
| 03:20
| Hence the''' pressure '''value in '''pascals''' is divided by the '''density''', that is, 1000''' Kg/m3''' '''(Kg per meter cube),''' and written here.

|-
| 03:29
| Let's close the file.

|-
| 03:32
| File containing the '''velocity boundary condition '''is as seen:lets open the file we can see the '''velocity boundary condition ''' for inlet, outlet and fixed walls

|-
| 03:43
| Let's close the file and come out of the ''''0'''' folder.

|-
| 03:48
| To see the '''blocking strategy''', let me switch back to the slides.

|-
| 03:54
| To create a '''3D geometry''' of a pipe I have made a '''2D''' circular '''geometry '''and extruded the length in z direction.

|-
| 04:03
| Numbering Pattern is as shown. You can also see the dimension of the mesh.

|-
| 04:11
| To see the '''blockMeshDict''' file, let's minimize the slides.

|-
| 04:16
| Let's go into the folder ''''constant',''' and then ''''polyMesh'.''' lets open the'''blockMeshDict ' file. You can see the vertices, logs,edges and boundaries for inlet, outlet and fixed wall.

|-
| 04:37
| Let's close the file and lets come out of the '''polyMesh''' folder.

|-
| 04:42
| We see the ''''transportProperties' '''file. Lets open the file Note the '''dynamic viscosity '''value, here, is 1e-06.

|-
| 04:53
| Let's close the file and come out of the 'folder ''''constant' ''.

|-
| 04:59
| Let's go into the ''''system'''' folder.Now, let's have a look at the ''''controlDict'''' file.

|-
| 05:07
| The solution '''converges''' after 18 seconds therefore the final '''time step''' is kept 19.The '''time step''' has been set to 1e-03.

|-
| 05:20
| Let's close the file.Let's close the ''''Home'''' folder.

|-
| 05:26
| Now to '''execute''' the case, we will, first, go inside the ''''3dpipe'''' folder through terminal.Let's open the terminal by pressing ''''control', 'alt' '''and''' 't'''' key, altogether.

|-
| 05:40
| Type '''run''' and press '''Enter'''

|-
| 05:44
| Type '''cd''' '''(space) tutorials''' and press '''Enter'''

|-
| 05:50
| Type '''cd (space)''' '''incompressible''' and press '''Enter'''

|-
| 05:55
| Type '''cd''' '''(space)''' '''icoFoam '''and press '''Enter'''

|-
| 05:59
| Type '''cd (space)''' '''3Dpipe '''and press '''Enter'''

|-
| 06:05
| Now to create the '''mesh''', type '''blockMesh''' and press '''Enter'''. '''Meshing''' has been done.

|-
| 06:16
| To start the '''iterations''' type '''icoFoam''' and press '''Enter'''. We see the '''iterations''' are running.

|-
| 06:27
| Iterations has been done.After the '''iterations''' end type '''paraFoam''' for '''postprocessing''' the results and press '''Enter'''. It will open the" paraview". This is " paraview"

|-
| 06:41
| Let's click on '''Apply''' on the left hand side of the '''Object inspector menu''' to see the''' geometry.'''

|-
| 06:49
| Let's rotate the '''geometry''' for a better view.

|-
| 06:52
| Click on the '''active variable control menu''' and select '''U''' in the drop-down menu.

|-
| 07:01
| At the top, in '''VCR toolbar''', click on '''Play''' button.

|-
| 07:06
| Go to '''Object Inspector menu''', go to '''Display''', click on '''Rescale''' to '''data range.'''

|-
| 07:16
| To view the half section, go to the toolbar named '''common''', click on '''Clips''' go to object inspector menu properties and press '''Apply'''.Lets Zoom in

|-
| 07:35
| Let's open the '''color legend.'''

|-
| 07:38
| We can see the '''maximum velocity''' is near to the actual '''maximum velocity'''i.e 0.4 metersp/s

|-
| 07:46
| To view the graph Go to '''Filters'''at the top '''Data Analysis'''and press '''Plot Over Lines.'''

|-
| 07:56
|Press '''Y''' axis and press '''Apply'''.

|-
| 08:00
| We can see the '''parabolic''' '''profile''' for '''Hagen-Poiseuille flow'''.

|-
| 08:05
| Let's close the '''graph'''. lets Close '''ParaView'''.And switch to the''' slides'''.

|-
| 08:12
| In this tutorial we have learned:
*To create and mesh '''3D pipe geometry.
*To simulate '''Hagen-Poiseuille flow''' for a '''fixed pressure ratio'''across boundaries and
*To visualize the '''velocity''' results in '''Parafoam '''.

|-
| 08:30
| As an assignment,
Change the '''geometry parameters '''such as length and diameter.

Change the corresponding '''pressure ratio.''' and Use the fluid of different '''viscosity.'''

|-
| 08:43
| Watch the video available at the following link * It summarises the Spoken Tutorial project.If you do not have good bandwidth, you can download and watch it

|-
| 08:54
| The Spoken Tutorial Project Team Conducts workshops using spoken tutorials Gives certificates for those who pass an online test For more details, please write to contact at spoken hyphen tutorial dot org

|-
| 09:11
| Spoken Tutorial Project is a part of the Talk to a Teacher project It is supported by the National Mission on Education through ICT, MHRD, Government of India More information on this Mission is available at spoken hyphen tutorial dot org slash NMEICT hyphen Intro
|}

@@ Line 20: / Line 20: @@
 '''OpenFOAM''' version 2.1.1  and
 '''ParaView''' version 3.12.0
 |-

@@ Line 10: / Line 10: @@
 | 00:09
 | In this tutorial, we will see:
-* To create and '''mesh 3D cylindrical pipe'''
+To create and '''mesh 3D cylindrical pipe'''
-* To '''simulate '''the '''Hagen-Poiseuille flow''' having''' fixed pressure ratio''' across '''boundaries''' and
+To '''simulate '''the '''Hagen-Poiseuille flow''' having''' fixed pressure ratio''' across '''boundaries''' and
-* To visualize the '''velocity contour '''in '''ParaView'''.
+To visualize the '''velocity contour '''in '''ParaView'''.
 |-
 | 00:25
 | To record this tutorial, I am using:
-* '''Linux Operating system Ubuntu '''12.04
+'''Linux Operating system Ubuntu '''12.04
-* '''OpenFOAM''' version 2.1.1  and
+'''OpenFOAM''' version 2.1.1  and
-* '''ParaView''' version 3.12.0
+'''ParaView''' version 3.12.0
 |-
@@ Line 243: / Line 243: @@
 | 08:12
 | In this tutorial, we have learned:
-* To create and '''mesh''' a '''3D pipe geometry'''.
+To create and '''mesh''' a '''3D pipe geometry'''.
-* To simulate '''Hagen-Poiseuille flow''' for a fixed pressure ratio across boundaries and
+To simulate '''Hagen-Poiseuille flow''' for a fixed pressure ratio across boundaries and
-* To visualize the velocity results in '''Parafoam '''.
+To visualize the velocity results in '''Parafoam '''
 |-
@@ Line 260: / Line 260: @@
 | 08:54
 | The Spoken Tutorial Project team:  * Conducts workshops using spoken tutorials.
-* Gives certificates for those who pass an online test.
+Gives certificates for those who pass an online test.
 For more details, please write to: '''contact at spoken hyphen tutorial dot org'''

@@ Line 234: / Line 234: @@
 |-
 | 08:00
-| We can see the parabolic''' '''profile''' for '''Hagen-Poiseuille flow'''.
+| We can see the parabolic profile for '''Hagen-Poiseuille flow'''.
 |-
 | 08:05
-| Let's close the '''graph'''. lets Close '''ParaView'''.And switch to the''' slides'''.
+| Let's close the graph. Let's close '''ParaView''' and switch to the''' slides'''.
 |-
 | 08:12
-| In this tutorial we have learned:
+| In this tutorial, we have learned:
-*To create and mesh '''3D pipe geometry.
+* To create and '''mesh''' a '''3D pipe geometry'''.
-*To simulate '''Hagen-Poiseuille flow''' for a '''fixed pressure ratio'''across boundaries and
+* To simulate '''Hagen-Poiseuille flow''' for a fixed pressure ratio across boundaries and
-*To visualize the '''velocity''' results in '''Parafoam '''.
+* To visualize the velocity results in '''Parafoam '''.
 |-
 | 08:30
-| As an assignment,
+| As an assignment-
 Change the '''geometry parameters '''such as length and diameter.
+Change the corresponding pressure ratio and use the fluid of different '''viscosity.'''
-Change the corresponding '''pressure ratio.''' and Use the fluid of different '''viscosity.'''
 |-
 | 08:43
-| Watch the video available at the following link * It summarises the Spoken Tutorial project.If you do not have good bandwidth, you can download and watch it
+| Watch the video available at the following link.  It summarizes the Spoken Tutorial project. If you do not have good bandwidth, you can download and watch it.
 |-
 | 08:54
-| The Spoken Tutorial Project Team  Conducts workshops using spoken tutorials  Gives certificates for those who pass an online test  For more details, please write to contact at spoken hyphen tutorial dot org
+| The Spoken Tutorial Project team:  * Conducts workshops using spoken tutorials.
 |-
 | 09:11
-| Spoken Tutorial Project is a part of the Talk to a Teacher project  It is supported by the National Mission on Education through ICT, MHRD, Government of India  More information on this Mission is available at  spoken hyphen tutorial dot org slash NMEICT hyphen Intro
+| '''Spoken Tutorial''' project is a part of the '''Talk to a Teacher''' project.  It is supported by the National Mission on Education through ICT, MHRD, Government of India.  More information on this mission is available at:
 |}

@@ Line 142: / Line 142: @@
 |-
 | 04:53
-| Let's close the file and come out of the 'folder ''''constant' ''.
+| Let's close the file and come out of the 'folder 'constant'.
 |-
 | 04:59
-| Let's go into the ''''system'''' folder.Now, let's have a look at the ''''controlDict'''' file.
+| Let's go into the 'system' folder. Now, let's have a look at the 'controlDict' file.
 |-
 | 05:07
-| The solution '''converges''' after 18 seconds therefore the final '''time step''' is kept 19.The '''time step''' has been set to 1e-03.
+| The solution '''converges''' after 18 seconds. Therefore, the final '''time step''' is kept 19. The '''time step''' has been set to 1e-03.
 |-
 | 05:20
-| Let's close the file.Let's close the ''''Home'''' folder.
+| Let's close the file. Let's close the 'Home' folder.
 |-
 | 05:26
-| Now to '''execute''' the case, we will, first, go inside the ''''3dpipe'''' folder through terminal.Let's open the terminal by pressing ''''control', 'alt' '''and''' 't'''' key, altogether.
+| Now to '''execute''' the case, we will first go inside the '3dpipe' folder through terminal. Let's open the terminal by pressing '''control, alt '''and '''t''' keys, altogether.
 |-
 | 05:40
-| Type '''run''' and press '''Enter'''
+| Type "run" and press '''Enter'''.
 |-
 | 05:44
-| Type '''cd''' '''(space) tutorials''' and press '''Enter'''
+| Type '''cd (space) tutorials''' and press '''Enter'''.
 |-
 | 05:50
-| Type '''cd (space)''' '''incompressible''' and press '''Enter'''
+| Type '''cd (space) incompressible''' and press '''Enter'''.
 |-
 | 05:55
-| Type '''cd''' '''(space)''' '''icoFoam '''and press '''Enter'''
+| Type '''cd (space) icoFoam '''and press '''Enter'''.
 |-
 | 05:59
-| Type '''cd (space)''' '''3Dpipe '''and press '''Enter'''
+| Type '''cd (space) 3Dpipe '''and press '''Enter'''.
 |-
 | 06:05
-| Now to create the '''mesh''', type '''blockMesh''' and press '''Enter'''. '''Meshing''' has been done.
+| Now to create the '''mesh''', type "blockMesh" and press '''Enter'''. '''Meshing''' has been done.
 |-
 | 06:16
-| To start the '''iterations''' type '''icoFoam''' and press '''Enter'''. We  see the '''iterations''' are  running.
+| To start the '''iterations''', type "icoFoam" and press '''Enter'''. We  see the '''iterations''' are  running.
 |-
 | 06:27
-| Iterations has been done.After the '''iterations''' end type '''paraFoam''' for '''postprocessing''' the results and press '''Enter'''. It will open the" paraview". This is " paraview"
+| Iterations have been done. After the iterations end, type "paraFoam" for '''postprocessing''' the results and press '''Enter'''. It will open the" paraview". This is " paraview".
 |-
 | 06:41
-| Let's click on '''Apply''' on the left hand side of the '''Object inspector menu''' to see the''' geometry.'''
+| Let's click on '''Apply''' on the left hand side of the '''Object inspector''' menu to see the''' geometry.'''
 |-
 | 06:49
-| Let's rotate the '''geometry''' for a better view.
+| Let's rotate the geometry for a better view.
 |-
 | 06:52
-| Click on the '''active variable control menu''' and select '''U''' in the drop-down menu.
+| Click on the '''active variable control''' menu and select '''U''' in the drop-down menu.
 |-
@@ Line 210: / Line 210: @@
 |-
 | 07:06
-| Go to '''Object Inspector menu''', go to '''Display''', click on '''Rescale''' to '''data range.'''
+| Go to '''Object Inspector''' menu, go to '''Display''', click on '''Rescale to data range.'''
 |-
 | 07:16
-| To view the half section, go to the toolbar named '''common''', click on '''Clips''' go to object inspector menu properties and press '''Apply'''.Lets Zoom in
+| To view the half section, go to the toolbar named '''common''', click on '''Clips''', go to '''object inspector''' menu > '''properties''' and press '''Apply'''. Let's Zoom in.
 |-
@@ Line 222: / Line 222: @@
 |-
 | 07:38
-| We can see the '''maximum velocity''' is near to the actual '''maximum velocity'''i.e 0.4 metersp/s
+| We can see the maximum velocity is near to the actual maximum velocity i.e 0.4 meters per second.
 |-
 | 07:46
-| To view the graph Go to '''Filters'''at the top '''Data Analysis'''and press '''Plot Over Lines.'''
+| To view the graph, go to '''Filters'''at the top > '''Data Analysis''' and press '''Plot Over Line.'''
 |-
 | 07:56
-|Press '''Y''' axis and press '''Apply'''.
+|Press '''Y Axis''' and press '''Apply'''.
 |-
 | 08:00
-| We can see the '''parabolic''' '''profile''' for '''Hagen-Poiseuille flow'''.
+| We can see the parabolic''' '''profile''' for '''Hagen-Poiseuille flow'''.
 |-

@@ Line 52: / Line 52: @@
 |-
 | 01:56
-| Type of solver used here is,'''IcoFOAM'''
+| Type of '''solver''' used here is '''IcoFOAM'''.
 |-
 | 02:01
-|It is a '''Transient Solver''' It is used for '''incompressible, laminar flow of Newtonian fluids.'''
+|It is a '''Transient Solver'''. It is used for '''in-compressible, laminar flow''' of Newtonian fluids.
 |-
 | 02:08
-| '''Pressure Boundary Conditions '''used,At '''Inlet: fixedPressure'''At '''Outlet: fixedPressure'''
+| '''Pressure Boundary Conditions '''used-
+at '''Inlet: fixed Pressure'''
-At '''Walls: ZeroGradient'''
+at '''Outlet: fixed Pressure'''
 |-
 |02:19
-| '''Velocity Boundary Conditions''' used,At '''Inlet: pressureInletVelocity''' At '''Outlet: zeroGradient''' At '''Walls: fixedValue'''
+| '''Velocity Boundary Conditions''' used -
 |-
 | 02:28
-| For executing this case,First, Let's create the '''case directory''' in the ''''icoFoam'''' folder.
+| For executing this case- first, let's create the '''case directory''' in the ''''icoFoam'''' folder and give it some name. I have named it as '3dpipe'.
-And Give it some name.I have named it as''' '3dpipe''''.
 |-
 | 02:41
-| To know the location of this folder, go through the tutorial on '''lid driven cavity'''.Copy this ''''0' (zero), 'constant'''' and ''''system'''' folders of '''lid driven cavity''' problem in the newly created folder.
+| To know the location of this folder, go through the tutorial on '''Lid driven cavity'''. Copy this '0' (zero), 'constant' and 'system' folders of '''lid driven cavity''' problem in the newly created folder.
 |-
 | 02:54
-| Let's go inside the ''''3dpipe'''' folder.
+| Let's go inside the '3dpipe' folder.
 |-
@@ Line 87: / Line 90: @@
 |-
 | 03:05
-| Now, let's go into the ''''0'''' folder.And open the ''''P'''' file.This is the''' pressure boundary condition''' file.
+| Now, let's go into the '0' folder and open the 'P' file. This is the''' pressure boundary condition''' file.
 |-
 | 03:14
-| Note that the dimensions are in '''(meter square) per (second square)''' '''(m2/s2)'''.
+| Note that the dimensions are in '''meter square per second square (m2/s2)'''.
 |-
 | 03:20
-| Hence the''' pressure '''value in '''pascals''' is divided by the '''density''', that is, 1000''' Kg/m3''' '''(Kg per meter cube),''' and written here.
+| Hence the pressure value in '''pascals''' is divided by the density, that is, 1000 Kg/m3 (Kg per meter cube)''' and written here.
 |-
@@ Line 103: / Line 106: @@
 |-
 | 03:32
-| File containing the '''velocity boundary condition '''is as seen:lets open the file we can see the '''velocity boundary condition ''' for inlet, outlet and fixed walls
+| File containing the '''velocity boundary conditions '''is as seen. Let's open the file. We can see the '''velocity boundary conditions''' for '''inlet, outlet''' and '''fixed walls'''.
 |-
 | 03:43
-| Let's close the file and come out of the ''''0'''' folder.
+| Let's close the file and come out of the '0' folder.
 |-
 | 03:48
-| To see the '''blocking strategy''', let me switch back to the slides.
+| To see the '''blocking''' strategy, let me switch back to the '''slide'''s.
 |-
 | 03:54
-| To create a '''3D geometry''' of a pipe I have made a '''2D''' circular '''geometry '''and extruded the length in z direction.
+| To create a '''3D''' geometry of a pipe, I have made a '''2D''' circular '''geometry '''and extruded the length in z-direction.
 |-
 | 04:03
-| Numbering Pattern is as shown. You can also see the dimension of the mesh.
+| Numbering pattern is as shown. You can also see the dimensions of the mesh.
 |-
@@ Line 127: / Line 130: @@
 |-
 | 04:16
-| Let's go into the folder ''''constant',''' and then ''''polyMesh'.''' lets open the'''blockMeshDict ' file. You can see the vertices, logs,edges and boundaries  for inlet, outlet and fixed wall.
+| Let's go into the folder 'constant', and then 'polyMesh'. Let's open the 'blockMeshDict' file. You can see the '''vertices, logs, edges''' and '''boundaries''' for inlet, outlet and '''fixed wall'''.
 |-
 | 04:37
-| Let's close the file and lets  come out of the '''polyMesh''' folder.
+| Let's close the file and let's come out of the '''polyMesh''' folder.
 |-
 | 04:42
-| We see the ''''transportProperties' '''file. Lets open the file Note the '''dynamic viscosity '''value, here, is 1e-06.
+| We see the 'transportProperties' file. Let's open the file. Note the '''dynamic viscosity '''value, here, is 1 e-06.
 |-

@@ Line 5: / Line 5: @@
 |-
 |00:02
-| Hello and welcome to the spoken tutorial on simulating '''Hagen-Poiseuille flow''' in '''OpenFOAM'''.
+| Hello and welcome to the '''spoken tutorial''' on '''Simulating Hagen-Poiseuille flow''' in '''OpenFOAM'''.
 |-
 | 00:09
-| In this tutorial we will see
+| In this tutorial, we will see:
+* To create and '''mesh 3D cylindrical pipe'''
-To create and '''mesh 3D cylindrical pipe.'''
+* To '''simulate '''the '''Hagen-Poiseuille flow''' having''' fixed pressure ratio''' across '''boundaries''' and
+* To visualize the '''velocity contour '''in '''ParaView'''.
-To '''simulate '''the '''Hagen-Poiseuille flow''' having''' fixed pressure ratio''' across '''boundaries.''' and  To visualize the '''velocity contour '''in '''ParaView'''.
 |-
 | 00:25
-| To record this tutorial, I am using
+| To record this tutorial, I am using:
-'''Linux Operating system Ubuntu '''12.04
+* '''Linux Operating system Ubuntu '''12.04
-'''OpenFOAM version '''2.1.1  and '''ParaView''' '''version '''3.12.0
+* '''OpenFOAM''' version 2.1.1  and
 |-
 | 00:38
-| To practice this tutorial learner should have the knowledge of Basic '''Fluid Dynamics'''and '''Hagen-Poiseuille''' '''flow'''
+| To practice this tutorial, learner should have the knowledge of basic '''Fluid Dynamics''' and '''Hagen-Poiseuille flow'''
 |-
 | 00:46
-| Here is, '''Hagen-Poiseuille''' '''Flow''' Diagram. We can see the '''dimensions and boundaries''' of the pipe.
+| Here is, '''Hagen-Poiseuille Flow''' diagram. We can see the dimensions and boundaries of the pipe.
 |-
 | 00:52
-|'''Viscosity''' of  the fluid used, that is, water is given.Pressure at the '''inlet''' is 20''' Pascals''' and at the '''outlet''' is 0''' Pascals.'''
+|'''Viscosity''' of  the fluid used, that is, water is given. Pressure at the '''inlet''' is 20''' Pascals''' and at the '''outlet''' is 0''' Pascals.'''
 |-
 | 01:04
-|As it is an '''incompressible flow''', only the pressure difference is of importance.
+|As it is an '''in compressible flow''', only the pressure difference is of importance.
 |-
 | 01:10
-| '''Formulas and Analytical Solution:''' For '''Hagen-Poiseuille flow,''''''Pressure drop''' along the pipe is: ('''P1 minus P2''') equals ('''32 mew Uaverage L''') upon ('''D square''')
+| Formulas and Analytical Solution:
 |-
 | 01:25
-|By substituting the values from the previous diagram, we get,'''Uaverage''' equals to 0.208 '''m/s''''''Maximum Velocity''' is given as,Two times the '''average velocity''', which would be, 0.416''' m/s'''
+|By substituting the values from the previous diagram, we get '''U average equals to 0.208 meters per second'''. '''Maximum Velocity''' is given as: two times the '''average velocity''' which would be 0.416 meters per second'''.
 |-
 | 01:44
-|'''Reynolds Number''' for the flow is,'''Uaverage '''into '''D '''upon '''nu''', that comes out to be, '''2080'''Hence, the flow is '''transient'''.
+|'''Reynolds Number''' for the flow is: '''U average into D upon nu''', that comes out to be 2080. Hence, the flow is '''transient'''.
 |-