Mesh the BMW M6 Model


Cleaning and Meshing of the provided BMW M6 Model.


As the car has several PID's there were many topological errors to clear and there are triple coons single coons as seen in the above model, the main aim is to clear those and to create a surface mesh.

Above showing wireframe pic we see the three Colors

  1. Red showing the Single surface (Free Boundary)
  2. Yellow showing the two surface attached to each other
  3. Blue showing the more than two surface attached to each other

Common Tools Used in ANSA

Create a Face Select Surface

  4. COONS

  • Fitted-  The FITTED option is used for the definition of a non-planar Face. The created Face fits the selected boundaries.
  • Planar- It defines a new planar face which is automatically created.
  • Coons-  This is an easy way to define a new surface by its boundary curves.

Set PID- This function assigns selected Faces, Shells or Groups of entities to an existing or new PID.

Extrude [Revolute/Glide]-  This function defines a multi-patch surface of revolution. This definition requires:

  • a chain of 3D-curves or CONS segments to be revoluted two points which define the axis of revolution
  • a starting and a terminating angle.

Transform- Transformation takes place for consecutive 3D curves. 

Tangent- This function performs a tangential extension of selected entities.

Delete- DELETE can be used to eliminate & delete part-specific faces rather than using the UNIVERSAL DELETE on the utility bar.

Topo- This function automatically creates topological conditions between selected adjacent CONS.

  • TOPO > Select Cons > Select Upper face > Select Bottom Face > Delete face > Select Face >Yes

Intersect- This function defines the intersection between two groups of Faces.

  • Intersect > First Face > middle Mouse > Second Face > middle Mouse > Delete unnecessary face and keep remain

Perimeter length- It assigns the length for the parts 

Zone Cut- This function creates zones around holes, perimeters, and edges.

Swap- Swap function rotates the shell edge picked by the user, inside the two shells which have that edge as common.

Split X- This function splits a quadrilateral element into its four triangular elements, by means of the two diagonal edges.

Reconstruct- It regenerates a high-quality surface mesh.

Swap- Swap function rotates the shell edge picked by the user, inside the two shells which have that edge as common.

Split- This function splits quadrilateral and triangular shell elements into smaller ones.

Set PID- It assigns the new PID for the selected boundaries.

  • Face > Set PID's > Face/Shell> Select the Hatch >middle Mouse> Shell Property Help > New > Naming the PID >Shell Property > Apply > Select Face PID > middle Mouse

Mesh generation free- Generates the mesh for the assigned length of the perimeter. 

  1. Perimeter > length > 1.Perimeter 2.Macros > Macros >Select all By Drag and Drop > length (1-20) > Define the Length > middle Mouse
  2. free mesh > Select Option > middle Mouse

Wind Tunnel Creation


Projects by Arun Gupta

Mid Surface of Side Door
Arun Gupta · 2019-11-16 14:12:28

AIM:- 1. To Extract the mid-surface manually & mesh the geometry with quality. 2. To Extract mid-surface Automatically and mesh the geometry with quality. 3. Then Finally with the combination of both Extract auto mid-surface and manually mid-surface and then mesh Read more

Objective 3-D simulation in Converge CFD to compare the emission and performance characteristics for a CAT 3410 diesel engine with different piston bowl geometry. Open-W Piston Omega piston Introduction In previous years of research has shown that the different Read more

FULL HYDRO case set up PFI
Arun Gupta · 2019-09-29 10:38:28

Objective To simulate the full hydro setup of a Port Fuel Injected engine which uses Iso octane as the fuel. Introduction When fuel injection takes place due to the interaction of the liquid with the surrounding air there is a drag force which causes disturbances in Read more

Aim It is a flow simulation through a pipe to understand super-cycling in a conjugate heat transfer problem. Introduction The analysis type Conjugate heat transfer (CHT) allows the simulation of the heat transfer between Solid and Fluid  Read more

Aim Cleaning and Mesh the Mesh model to define the correct property ID. Introduction Hood is a covering part of the engine compartment which is also known as the bonnet. Acts as a engine unit protector, and protects from environmental issues. Protects passenger f Read more

Aim Study the effect of pressure and temp in Shock-tube. Introduction In a Shock Tube, the sudden expansion of a gas at high pressure into a gas at low pressure produces a plane shock wave that then propagates through a long-closed tube. The shock wave is used to pro Read more

Aim Cleaning the CAD model and Surface meshing the pressure Valve CAD model using ANSA. The problem in the Pressure Valve CAD Model I have observed in the cad model many problems are present. Surface missing Surface Interface Performed steps in completin Read more

Aim Perform the meshing the turbocharger model using the ANSA. Cleaning the turbocharger part and Assign the PID\'S Do the surface and volume mesh of the turbocharger. Turbocharger A turbocharger, colloquially known as a turbo, is a turbine-driven forced i Read more

Aim Fluid Flow behavior when the throttle changes his position with time. Throttle Valve Throttle, Valve for regulation the provision of a fluid (as steam) to an engine, particularly the valve dominant the degree of&n Read more


The End