U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000


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Experimental Aerodynamics Projects

 

Instrumentation Development

Small-Scale, Closed-Circuit Wind Tunnel
A new small-scale, closed-circuit wind tunnel has been placed into service to complement the capabilities of the large wind tunnel at Turner-Fairbank Highway Research Center. This new facility will be used for flow visualization and other special studies. So far, it has been used for particle image velocimetry (PIV) projects, wind pressure measurements on generic deck sections, and evaluation of pressure sensitive paint (PSP) and shear stress sensitive film (S3F) technologies. This is an ongoing project.

Bluff Body Aerodynamics

Tapered Cylinder Aerodynamics Research
This research consists of an experimental parametric study of tapered cylinders of varying cross-sectional shapes tested in incompressible laminar flow. The research will also study aerodynamic forces and moments and their frequency response, and determine optimum shapes and dynamic response to wind excitation. This project had been on hold, but was recently restarted.

Aerodynamic Investigation of Generic Bridge Section Shapes
This study will be an aerodynamic investigation of representative generic bridge section shapes. The spectrum of shapes studied covers a large number of the geometrical layouts in service today. The purpose of the study is to determine the static and dynamic aerodynamic characteristics of these basic shapes in order to support the design and development process by introducing aerodynamic information early in the design process. This is an ongoing project.

Aerodynamic Investigation of Modeled Bridge Sections
The purpose of the study is to determine the static and dynamic aerodynamic characteristics of these modeled bridge shapes. Models were designed and constructed with great geometrical fidelity with the intention of modeling the flow interaction in the most accurate way possible. This is an ongoing project.

Application of Particle Image Velocimetry (PIV) to Bridge Deck Aerodynamics
This study investigates the application of particle image velocimetry to the study of flow around bridge deck models and other types of bluff bodies. Particle image velocimetry flow analysis yields detailed flow information, including velocity and pressure distributions, vorticity fields, and calculated body forces. Several experiments were designed, including various generic bridge model shapes to be studied at low Reynolds numbers and varying angles of attack. This is a completed project.

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Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000
Turner-Fairbank Highway Research Center | 6300 Georgetown Pike | McLean, VA | 22101