Using Graphs to Compare
Lift Variables

Subject Area: Physical Science

Grade Level: 9-12

National Science Standards:

Objective:

After using the FoilSim computer simulation program, you will demonstrate an understanding of the lift variables by explaining their graphical representations.


FoilSim is an interactive simulation software package that determines the airflow around various shapes of airfoils. As you change the parameters of airspeed, altitude, angle of attack, thickness and curvature of the airfoil, and size of the wing area, the software calculates the lift. The package was created at NASA Glenn Research Center to illustrate an example of the research being conducted here.

Macintosh or MS-Windows 3.x, 95, or NT versions of FoilSim are available for downloading off the World Wide Web at FoilSim Download.

Shown below is a screen shot from the program showing the controls and displays. You may change the values of the variables by using the slider or the input box on the left of the slider.

To use the slider:

  1. Click the mouse pointer on the arrows at the ends of the slider.
  2. Click the mouse pointer anywhere between the slider and the arrow.
  3. Drag the slider with the mouse.

To use the input box:

Simply select the value in the input box, key in the new value, and press Enter or Tab when finished. The button on the slider will move corresponding to the value typed in the box.

Use the simulation to produce the graphs of the lift variables. To begin the problems, click on Using Graphs to Compare Lift Variables.

Assessment:

You, or you and your partner(s), will be evaluated on the accuracy or feasibility and completeness of your answers.

Evaluation:

You will demonstrate the ability to use the information produced through FoilSim to analyze and compare graphical data.

Submitted by: James P. Rinella, Big Walnut High School, Sunbury, Ohio

Links:

Aeronautics - The Four Forces of Flight

Lift

 


Please send any comments to:
Web Site Related: Dale Morris (Dale.J.Morris@grc.nasa.gov), Technology Related: Tom Benson(Tom Benson@lerc.nasa.gov)