Two People Working with a Water Tunnel Apparatus

About This Item

Two people working with a water tunnel apparatus—a classic tool in fluid dynamics and aerodynamics research—alongside a data acquisition and control rack filled with instrumentation. The man on the right is adjusting or inserting a flow probe or dye injector into the water tunnel to measure or visualize flow characteristics. The man kneeling is likely tuning the control system—adjusting parameters like water speed, sensor calibration, or triggering data recording.

Identifier
TP-ATA-1930
Date
Nov 1971
Context

Water Tunnel Apparatus

  • The clear cylindrical tank is a water tunnel, the hydrodynamic equivalent of a wind tunnel.
  • Inside, there appears to be a model or probe mounted on a rod, possibly for studying flow characteristics around submerged shapes (e.g., an airfoil, cylinder, or sensor).
  • Water would flow through the test section, allowing visual or sensor-based investigation of flow behavior like turbulence, vortices, or pressure differences.

 

Control & Measurement Rack

  • The equipment rack beside the tank is full of analog signal processing units, oscilloscopes, flow controllers, and chart recorder interfaces.
  • The knobs and dials suggest control over things like:
    • Pump speeds
    • Flow rates
    • Pressure differentials
    • Possibly even temperature (if heaters or coolers were used)

 

Credits: 

Some technical descriptions and historical interpretations were developed with the assistance of ChatGPT, an AI language model by OpenAI.

Geographic Coverage
San Francisco, CA
Temporal Coverage
1970s
Type
Still Image
Format
Negative
Source
San Francisco State University Archives
Rights
Public
Views
311

Related Items

A Person Working with Precision Laboratory Balance Scale A Person in a Lab Coat Setting Up or Checking a Reflux Reaction A Person Working With Optical Measurement or Precision Drilling Device A Person Working with Precision Laboratory Balance Scale Mainframe Computer Center, San Francisco State College, January 1971 Mainframe Computer Center, San Francisco State College, January 1971 (Tape Operation View) Microfilm Readers in Use, San Francisco State College, January 1971 Mainframe Computer Center, San Francisco State College, January 1971 (Extended Staff View) Microfilm Readers in Use, San Francisco State College, January 1971 (Alternate View) Mainframe Computer Center, San Francisco State College, January 1971 (Console Operation View) Mainframe Computer Center, San Francisco State College, January 1971 (Alternate View) Technician Performing Maintenance on Analog Simulation System, San Francisco State College Student Operating Chart Recorder in Electronics Laboratory, San Francisco State College Student Operating Chart Recorder in Electronics Laboratory, San Francisco State College (Alternate View) A Person Operating a Gas Chromatograph (GC) or a mass spectrometer (MS) Two People Working with a Water Tunnel Apparatus Two People Working with a Water Tunnel Apparatus Technician Operating CANT Data Acquisition Unit, San Francisco State College, November 1971 Student Operating Analytical Instrumentation in Chemistry Laboratory, San Francisco State College, November 1971 A Person Operating an Early Mainframe or Minicomputer System