Chapter 14	MULTIPLE CYLINDERS
	STAR Set-Up in es-ice

Figure 14-27 Boundary summary of Cylinder 1

•If you wish to verify the boundary region in the Controls Workspace window, click the D button next to the required boundary. This button also opens the Boundary Tool, so that you can redefine the boundary region if necessary.

Finally, select Standard for the wall function model and combine all patches for a given boundary type into a single boundary region (see Figure 14-28).

•Exit from the Summary view by deselecting the Summary toggle button

•Select Global settings of Cylinder 1 from the drop-down menus at the top

•Set Wall function model to Standard

•Note that as the Wiebe model does not provide thermal conductivity, you can only use the Standard or Han/Reitz wall function models

•Click Check regions to ensure that all regions are valid

•Select the consistently toggle button and click Join regions

Figure 14-28 Multiple cylinder Star Controls > Boundary conditions for Global settings

Post Setup

In the Post-setup view of the Star controls panel, specify your requirements for post-processing the analysis results.

•For Cylinder of Cylinder 1 (see Figure 14-29), deselect the Monitoring positions toggle button

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MULTIPLE CYLINDERS	Chapter 14
STAR Set-Up in es-ice

Figure 14-29 Multiple cylinder Star Controls > Post-setup panel for Cylinder 1

•Accept the default settings for Port 1 and Port 2. As before, ports and cylinders use the same settings as their equivalent counterparts.

•Select Global settings of Cylinder 1 from the drop-down menu

•Set Sectors to 8 to split the circumference of the valve curtain into eight sections for post-processing purposes

•Select Global settings of Cylinder 2 and ensure that Sectors is also set to 8, as shown in Figure 14-30

Figure 14-30 Multiple cylinder Star Controls > Post-setup panel for Global settings

Time Step Control

In the Time step control view of the Star Controls panel:

•Check that Global of Cylinder 1 is selected from the drop-down menus

•Set Step to 0.1 for a time step of 0.1 degrees crank angle

•Check that the Use valves toggle button is selected, as shown in Figure 14-31

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