Circulation Control
Authors' Class Standing
Ryan Callahan- Senior Aaron Watson - Senior
Lead Presenter
Ryan Callahan
Faculty Mentor Name
Lance Traub
Format Preference
Demonstration
Abstract
The purpose of this research project was to investigate the effects of circulation control on lift and drag. Also being investigated is whether drag penalties from circulation control can be reduced by preventing separation off the trailing edge, thereby reducing the size of the wake and reducing wake drag. A small jet of high velocity flow was produced near the trailing edge of the wing using a motor and fan mounted within the wing. The flow proceeds around the rounded trailing edge via the Coanda effect. This phenomenon causes an increase in lift but also drag. The motor draws flow from the bottom of the trailing edge in an attempt to ingest the flow prior to separation. Testing is underway at this time, but no definite results have been tabulated. Preliminary testing has shown that our jet velocity has been around 40 m/s. Limitations of rapid prototyping the model has caused difficulty in testing.
Location
AC1-115 (Bldg. 74)
Start Date
4-4-2014 1:40 PM
End Date
4-4-2014 1:55 PM
Circulation Control
AC1-115 (Bldg. 74)
The purpose of this research project was to investigate the effects of circulation control on lift and drag. Also being investigated is whether drag penalties from circulation control can be reduced by preventing separation off the trailing edge, thereby reducing the size of the wake and reducing wake drag. A small jet of high velocity flow was produced near the trailing edge of the wing using a motor and fan mounted within the wing. The flow proceeds around the rounded trailing edge via the Coanda effect. This phenomenon causes an increase in lift but also drag. The motor draws flow from the bottom of the trailing edge in an attempt to ingest the flow prior to separation. Testing is underway at this time, but no definite results have been tabulated. Preliminary testing has shown that our jet velocity has been around 40 m/s. Limitations of rapid prototyping the model has caused difficulty in testing.