MICHAEL SUKHAM

15MCD1062

COMPUTATIONAL FLUID DYNAMICS LAB

Record Submission

JUNE 29, 2016 VIT UNIVERSITY

CHENNAI

Tools included to create the

geometry

Centre point is created with coordinates: x=0; y=0; z=0 and two more

points are created with coordinates: x=12.5; y=0: z=0 and x=0; y=12.5;

z=0

Line tools to create 1D geometries Select the 3 points already created before

Tools to create surface or

2D geometries

To create a surface using curves

created before

Surface creation from a single curve is

selected and the circle is selected

Point at coordinate x=0; y=0;

z=250 is created using the point

creating tool

Tool to extrude a given 2D curve

1. The point x=0; y=0; z=0 is selected first and then point x=0; y=0;

z=250 is selected.

2. The curve that we want to extrude i.e. the circle in this case is

selected for the swept curve

Given geometry will be created with the end open

Surface is turned off in order to

see the point from where we

want to copy the surface Tool to transpose or

copy an entity

Point from where we want to copy to the point

which we the entity to be copied is selected i.e.

x=0; y=0; z=0 to x=0; y=0; z=250 in this case

Tick copy as we want the entity to be copied

and not transposed

Select the entity we want to be

copied i.e. the circular surface in this

case.

In order to be able to specify parts and see parts

individually, parts are created.

Tool used for blocking

Similarly, the OUTLET and the WALL is also selected and specified in parts.

Part name is user defined Respectively the part we want to be specified is

selected

1. Project vertices is selected

2. The whole geometry is selected for

blocking

Block is created

Edge association option 1. Select all the edges of the block

2. Associate it with the curve i.e. the circle in our case

Select PARTS again in

order to specify the fluid

Since fluid is flowing inside, the whole block is

specified as fluid and user defined name is given

Select OGRID for obtaining accurate

results around curved edges

Go to Select Block and the whole block is

selected

Select Face option is selected The face at the inlet and outlet is selected

After blocking go to edit pre mesh

parameter

The node length is user defined and in

this case 40 nodes are given Select mesh

parameters

Copy parameters is also ticked to copy to mirror edges

Node count of 40 is given for this edge

Node count of 250 is given for this edge length

Now pre mesh parameters are done.

Node count of 8 is selected for this edge

Click on Pre mesh and then compute the mesh

Select the Mesh Quality option

3x3 determinant is used for quality check

Quality of 0.7 minimum is obtained from the pre mesh

1. Right click on Pre mesh

2. Select convert to Unstruct Mesh

Finally the meshing is complete of our cylinder.