UPMS Quick Tutorial

Supersonic Axisymmetric Jet Flow: Study #1

Figure 1. Mach number contours for supersonic axisymmetric nozzle jet flow.

Introduction

This study is an example study demonstrating the use of UPMS to compute axisymmetric, nozzle flow fields.

Download tar File

All of the files associated with this study are available in the Unix compressed tar file Axi.tar. The files can then be accessed by the commands tar -xvf Axi.tar

Problem Description

This study is an example study demonstrating the use of UPMS to set up PAB3D to compute axisymmetric, nozzle flow fields. J.M. Eggers studied this nozzle in 1962.

Table 1 lists the ambient conditions for the flow field.

Table 1. Ambient conditions.

Mach

Pressure (psia)

Temperature (R)

Angle of attack (deg)

Angle-of-Sideslip (deg)

0.0

14.7

525.0

0.0

0.0

 

Table 2 lists the inflow conditions for the nozzle or plenum conditions.

Table 2. Nozzle inflow conditions.

Total Pressure (psia)

Total Temperature (R)

162.0

525.0

1. Start UPMS type upms at command prompt and hit RETURN (If this does not work, check path or consult your system administrator). After few seconds UPMS will start and presents a single comprehensive view of modeling and simulation process

2. Next step is to select directory in which grid file resides. To do this, from File pull down menu click Preferences and select Working Directory.

Note: Unless, it is specifically mentioned, for selection and accepting (e.g. click OK), use always LEFT button of Mouse.

User can navigate (from Look in) to select the working directory. It is important to note that when user selects a particular directory, it gets highlighted. Now user must click Select button; otherwise the desired directory will not be selected (double click will not work).

To Preview exist project for this case, File -> Load Project, this will promt for Project Name. Type Axi for project Name. Before going further, it is useful to see the image of geometry. Clicking Active Display check box in Tools pull down menu can do it. A warning message pops up, notifying USER that it is not possible to use New, Load or Import from File menu. Click Yes to continue. After few seconds, image will appear on left panel of UPMS window