I N D S H E A R W a n e W s Ta n d a R d Combine the world's most advanced wind tunnel, rollingroad and measurement technologies to provide an unparalleled aerodynamic testing environment for the racing and automotive industriesthis is Windshear, Inc.'s founding vision and continued mission. Offering a stable, verifiable and repeatable test environment, Windshear is more than the first and finest commercially available wind tunnel of its kind. We are the new standard in aerodynamic testing. RealWoRld WInd TeChnoloGy From its fullscale, openenvironment testing configuration to datacentric features like twostage boundary layer removal and precisely controlled air temperature, every aspect of Windshear's air circuit is designed to create realworld wind simulation and maximize measurabilitytranslating cuttingedge data acquisition into toplevel performance on road or track. Air Circuit features: Variable wind speed from 0 to 180 mph (0 to 290 kph) Optimized for fullscale car testing with a ¾ openjet test configuration and twostage boundary layer removal system 10 ft high x 18 ft wide, 180 ft2 air nozzle (3.05 m high x 5.49 m wide, 16.72 m2) Air temperature maintained at 75° F (24° C) +/ 1° Fan diameter is 22 ft (6.71 m) Directdrive fan motor produces 5300 hp (3.95 MW) at peak operation with air flow volume of 2.85 million ft3 (80700 m3) per minute at maximum air speed 180 mPh WIThoUT movInG an InCh Windshear's cuttingedge Flat Trac®* Rolling Road system enables us to create fully integrated airflow and track speedproviding realworld simulation and a test environment that can only be reproduced on track. The Flat Trac system provides the most accurate aerodynamic road simulation possible in the industry today, blurring the line even further between test environment and realworld performance. Rolling Road features: Speed: 0 to 180 mph (0 to 290 kph) Size: 10.5 ft wide (3 m) x 29.5 ft long (9 m) Yaw: +/ 8° range Acceleration: 0 to 180 mph (290 kph) in less than one minute Down Force: "Throughthebelt" measurement system measures aerodynamic down force under each tire in real time Low Friction / Durability: a 1 mmthick continuous stainless steel belt floats on a cushion of air, allowing belt life of up to 5000 operational hours * Flat Trac is a registered trademark of MTS Systems Corporation, Eden Prairie, MN. P R o P R I e Ta R y P R e C I s I o n While Windshear's unique wind tunnel/rolling road configuration provides an unparalleled test environment, it is our comprehensive and proprietary data acquisition system that allows testing for a wide range of performance factors to gain realistic, highquality and repeatable data. Capabilities include: Lift / Down Force: wheel loads taken through rolling road belt Drag / Side Force: measured through load cellequipped tethers Ride Height: controlled independently by highprecision, servomotordriven actuators coordinated with laser micrometers, providing repeatability and accuracy to aero maps s e C U R I T y, o U R h I G h e s T P R I o R I T y Security and confidentiality are paramount to operations at Windshear. From testing schedules to facility access to data handling, every detail is designed to meet the strictest of security standards in order to provide our clients with the highest level of protection. Security features include: Windshear staff is trained to ensure your privacy and security 24/7 securitycontrolled access to all work areas Cardkey secured, private customer vehicle preparation bays Secure data system that protects confidentiality Pa R a m e T e R s P e C I F I C aT I o n a C T U a l Pa R a m e T e R Maximum Continuous Air Speed V max = 180 mph, Fullscale NASCAR with supports, CD = 0.3, frontal area = 27 ft2, length = 18 ft 0.25 mph V SP +0.25 mph Average of 1Hz data over a 300 second time period V 0.30 mph, (1) Standard deviation of 1Hz data over a 300 second time period T max 75°F at V max = 180 mph 1°F T SP +1°F Average of 1Hz data over a 300 second time period T 1°F, (1) Standard deviation of 1Hz data over a 300 second time period PT/q 0.30%, (1) Standard deviation of 50 measurements within the test plane PS/q 0.60%, (1) Standard deviation of 50 measurements within the test plane & 0.25° (1) Standard deviation of 12 measurements within the test plane u'/U 0.40% Average of 12 measurements within the test plane Frequency range of 10 to 5000 Hz u/U 0.96 for 0" z 2" u/U 0.995 for 2"< z 10" on centerline in the test plane V Rate 30 seconds 0 to 180 mph in 30 sec 180 mph to fan stop in 30 sec V max 180 mph, Fullscale NASCAR with supports, CD = 0.3, frontal area = 27 ft2, length = 18 ft VVSP = 0.001 mph (at 180 mph; 75°F) Average of 1Hz data over a 300 second time period V = 0.259 mph, (1 at 180 mph; 75°F) Standard deviation of 1Hz data over a 300 second time period T max < 75°F at V max = 180 mph TTSP = 0.02°F (at 75°F) Average of 1Hz data over a 300 second time period T = 0.021°F, (1 at 75°F) Standard deviation of 1Hz data over a 300 second time period PT/q = 0.22%, (1 at 180 mph; 75°F) Standard deviation of 50 measurements within the test plane PS/q = 0.18%, (1 at 180 mph; 75°F) Standard deviation of 50 measurements within the test plane = 0.114° (1 at 180 mph; 75°F) = 0.190° (1 at 180 mph; 75°F) Standard deviation of 12 measurements within the test plane u'/U = 0.191% Average of 12 measurements within the test plane Frequency range of 10 to 5000 Hz u/U 0.99 for 0" z 2" (at 180 mph) u/U 0.995 for 2"< z 10" (at 180 mph) at the test plane on the belt centerline V Rate 30 seconds 0 to 180 mph in 28 sec 180 mph to fan stop in 24 sec Air Speed Set Point Air Speed Stability Maximum Air Temperature Temperature Set Point Temperature Stability Total Pressure Uniformity Static Pressure Uniformity Flow Angularity Uniformity Turbulence Intensity Boundary Layer Thickness Acceleration/Deceleration Rate Sectional Plane for Uniformity Measurements During Calibration Width: 100" (± 50" from tunnel centerline) Height: 50" (10" to 60" above the belt surface) Axial Position: 80" downstream of nozzle exit plane 10 5 0 I v e y C l I n e R o a d C o n C o R d, n C 2 8 0 2 7 7 0 4 7 8 8 W I n d W I n d s h e a R I n C .C o m
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