For a full-cycle analysis, the setup of an internal combustion engine
starts from a geometry in CAD format. For a closed-cycle analysis using a cylinder sector
model, you import a 2D spline in *.csv format that describes the
profile of the cylinder sector.
Depending on the type of engine analysis,
import the geometry using one of the following procedures:
| Engine Analysis |
Procedure |
| Full-cycle (using full engine
geometry) |
Before you import the CAD geometry,
make sure that you have the bodies and faces prepared as
described in Geometry
Requirements.
- Right-click the
Geometry node and select
Import CAD
Model.
- In the Open dialog, navigate to the folder that
contains the geometry file, select the file, and click
Open.
The
geometry objects, which correspond to the imported
CAD bodies, appear in the tree. The Graphics window updates and
displays the geometry objects in orange color. In
the bottom left corner of the
Graphics window, the Crank
Angle annotation displays a value of
0, which corresponds to the TDC position of the
imported geometry.
|
| Closed-cycle
(using cylinder sector) |
Before you
import the 2D spline, make sure that you have the
*.csv file prepared as described in
Geometry
Requirements.
- Right-click the
Geometry node and select
Import 2D
Curve.
- In the Open dialog, set
Imported 2D Section Type to
one of the following options:
- Full 2D Section (At
TDC)—set this option to
import a closed spline that describes the profile
of the cylinder sector with the piston at TDC
position.
- PistonBowl Only (AT
BDC)—set this option to
import an open spline that describes the profile
of the piston bowl at BDC position.
- Head and Piston Bowl (At
BDC)—set this option to
import an open spline that describes the profiles
of the cylinder head and the piston at BDC
position.
- Navigate to the folder that contains the geometry spline, select the file,
and click Open.
The
geometry object 2D Section
appears in the tree. The Graphics window updates and displays
the cross section of the cylinder sector in orange
color.
|
For more information, see Geometry Reference—Geometry Right-Click Actions.
