Engineering Laboratory Design offers instrumentation and models for all levels of testing requirements. ELD also has a wide variety of experience in model design. The standard models of wind tunnels and water tunnels can be provided with models including airfoils, cylinders, drag model sets, and plates for performing boundary layer measurements. Special model requirements can be easily accommodated.

Wind tunnel Instrumentation

As an add-on option to any of ELD's wind tunnels we offer a complete system of models and measurment systems. These include:
• NACA 0012 & 4412 Airfoils with pressure taps
• NACA 0012 & 4412 Airfoils bracketed for strut mounting to the dynamometer
• Boundary Layer Plate
• Cylinder model with pressure tap
• Drag Body set: Smooth, and Rough Spheres, Disk, Cup, Hemisphere
• Balance/Dynamometer
• Traversing Probe
• Pressure Transducer
• Control/Readout Device

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The full instrumentation system offered as an accessory to the standard wind tunnel models makes possible the investigation by the student of basic air flow phenomena. These measurements allow the student to make the association between the theoretical concepts and the real life events. The system consists of a lift-drag dynamometer, pressure transducer, and two-axis probe positioning system. The pressure transducer can be used to measure the pressure distribution associated with wind tunnel models and/or for measuring the test section velocity when used in conjunction with the Pitot-static probe. Linear differential variable transducers (LVDTs) are employed for sensing loads on the dynamometer. The LVDT provides a remarkably stable output signal and will withstand rough handling. The probe location is reported through the separate digital displays. All of the necessary electronics are included in an attractive, bench top enclosure. This system can be adapted to any sub-sonic wind tunnel or other application for similar air flow measurements.

In situations requiring more refined measurements, ELD will work with a customer in establishing the measurement type and accuracy. ELD has a strong working relationship with a wide variety of instrumentation vendors. We can use these contacts in procuring the necessary components or make suggestions of possible vendors for the customer to pursue independently.



Water tunnel Instrumentation

As an add-on option to any of ELD's water tunnels we offer a complete system of models, all include dye taps. These include:

• NACA 0012 & 4412 Airfoils, with multiple dye taps,
• Flat Plate
• Cylinder models
• Smooth sphere
• Hemispherical cup
• Streamlined body
• Chamfered circular disk
• Dye stream injector

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Hydraulic Channel Instrumentation

As an add-on option to any of ELD's hydraulic channels we offer a complete system of models. A Model Set Includes: