Modeling the Geometry

 

       Specifying the Element Type and
       Material Properties

 

       Meshing

 

       Applying Boundary Conditions

 

       Running FLOTRAN

 

       Postprocessing


       ADPL

      

 

 

 


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Engineering Analysis Project 1

Project 1 Part 1

Each student works through the tutorial for an ANSYS 3-D analysis of the flow of air between 2 plates with one plate stationary and the other having a velocity of 19.15 m/sec. The top plate is oriented at an angle of 2.5 degrees from the bottom (horizontal) plate.

Other parameters they will use in their analysis are (see Fig. 1):

r_air = 1.23 kg/m3
n_air = 1.79 x 10-5 Ns/m2
Length of plates in the direction of the flow, L = 2.0 x 10-3 m (2 mm)
Width of plates normal to the direction of the flow, W = 2.0 x 10-3 m (2 mm)
Separation Distance Between Plates, b2 = 1 x 10-7 m (100 nm)
b1 = 876 x 10-7 m (87.6 mm) (this yields an angle of 2.51 degrees)

The students will obtain the following:
A 3-D plot of pressure vs. x and y acting on the stationary plate
A 3-D plot of Velocity vs. y and z along the center of the plate (x = 0)
A plot of pressure vs. x where z = -W/2 (-1mm) and y = 0 (on the surface)
A plot of velocity vs. y where x = 0 and z = -W/2 (-1mm)
The total upward normal force on the stationary plate (by integrating the pressure or by summing up nodal forces).

 


 

 


Last update: Oct 9, 2004
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