TFML

Facilities

Our experiments run in the California Energy Building at the Technion. Most of the facilities were designed and built in-house, and all of them are instrumented for high-speed imaging.

Shock tube facility

Shock tube facility

A fully automated, movable shock tube for studying how shock waves interact with area changes, constrictions, rough walls and porous media.

  • Test section 2000 × 130 × 40 mm; driven section 40 × 40 mm, 4080 mm long
  • Driver pressure up to 40 bar of air; Mach numbers 1.2–1.8 in air
  • 28 PCB Piezotronics 113B26 pressure transducers
  • Four Teledyne LeCroy WaveSurfer 3034z oscilloscopes
  • High-speed schlieren and shadowgraphy with two Phantom v2640 cameras
  • Whole facility moves up to 2 m in both directions on stepper motors
  • Fully automated with in-house LabVIEW code

Round pipe channel

Round pipe channel

A refractive-index-matched pipe flow loop for stereo and tomographic PIV of turbulence and particle transport across area changes.

  • Test section 300 mm × Ø40 mm acrylic; velocities up to 10 m/s
  • Working fluid 63% aqueous sodium iodide (NaI), density 1800 kg/m³, refractive index 1.488
  • Expansion area ratio 2.56
  • Injects solid particles up to ½″ and collects them downstream
  • High-speed tomographic PIV with four Phantom v2640 cameras
  • Low-speed, high-resolution PIV with two Imager CX-25 cameras
  • Two digital pressure transducers and a digital flowmeter; vacuum pump and N₂ supply

Octagonal tank

Octagonal tank

A quiescent index-matched tank for time-resolved tomographic PIV around freely rising and falling bodies.

  • Test section 250 mm per side × 700 mm, acrylic
  • Working fluid 63% aqueous NaI, density 1800 kg/m³, refractive index 1.488
  • Releases solid spheres up to ¾″ from the base
  • High-speed tomographic PIV with four Phantom v2640 cameras
  • Filtration system that can also drive a jet from the top
  • Small pressure tank with gauge and release valve; vacuum pump and N₂ supply

Large water tunnelUnder construction

Large water tunnel

A large recirculating tunnel that will run on either water or index-matched NaI solution, with independent filtration and cooling.

  • Working fluid 63% aqueous NaI (1800 kg/m³) or water (1000 kg/m³)
  • High-speed tomographic PIV with four Phantom v2640 cameras
  • Independent solution filtration and cooling systems
  • Large pressure tank; digital differential pressure transducer and flowmeter
  • Vacuum pump and N₂ supply

Workshop

In-house fabrication for models, inserts and fixtures.

  • 3D printers
  • CNC machine
  • Laser cutter
  • Precision drill press