Hess tower field laboratory
Hess Tower overview:
- 29 stories; 488 ft overall height.
- Built in 2010 as Houston’s first downtown 'LEED Platinum' office building.
- Includes a green roof, sustainable water strategies, and option for rooftop wind harvesting.
- Located adjacent to a 12-acre urban park (Discovery Green).
Field laboratory overview:
- Roof access granted in partnership with CBRE, Hess Corporation, and H&R Real Estate Investment Trust.
- CSAT3B (Campbell Scientific) 3-D sonic anemometer assembly stations that can measure local 3-components of velocity and sound speed at up to 100 Hz.
- CR6 datalogger (Campbell Scientific) for simultaneous recording of all sensor assemblies.
Low-speed wind tunnel
- Closed-loop facility.
- 30 m/s top speed.
- 3.5 ft x 5.5 ft x 20 ft test section with full optical access.
- Additional 20 ft length of test section without optical access.
- Dual 30hp Toshiba AC motors with Toshiba variable frequency drives and closed-loop speed control system.
Test section equipment:
- Traversing system for three-dimensional probe positioning controlled by LabView.
- Multi-hole pressure probe (Cobra probe; Turbulent flow Instrumentation) that can measure local 3-components of velocity and static pressure at sample rates up to 600 Hz.
- Propylene glycol smoke generator (AeroLab)
Other Major resources
- Two VEO-L 641 cameras from Vision Research.
- Each camera equipped with 72GB RAM.
- Resolution up to 2560 x 1600 pixels (4MP) at 1400 fps.
- Capable of up to 360,000 fps at reduced resolution.
High-speed laser system:
- Nd:YLF Dual Cavity Diode Pumped Solid State Laser from Photonics Industries.
- Laser output is 2 x 35 mJ/pulse at 527 nm and 1 kHz repetition rate.
- Capable of up to 10 kHz repetition rate from each head.