Vivek V. Buwa

Time-resolved Stereo Particle Image Velocimetry (PIV) and Laser Induced Fluoresce (LIF)

Photograph of time-resolved stereo PIV system
Camera :

2 Phantom M310 high-speed cameras (3600 fps @1 MP) Lenses: 60 mm and 130 mm AF Nikor

Filters for PLIF : 540 and 650 nm for concentration and temperature LIF
Laser : Litron Nd:YLF high-speed laser (30 mJ @ 1000 fps)
Workstation : Intel xeon e5 with 128 GB RAM, 2 TB storage
PIV software modules : Insight 4G (2D, Stereo, PLIF, Size shape analysis tools)
Traverse system : 3D (x,y,z) upto 1m
System provider    : TSI, USA

               Dilute gas-liquid flow in bubble columns

      Cold flow studies in Basic Oxygen Furnace & ladle (used in steel making)

      Single phase flow in packed beds

      Small-scale flow around bubbles and drops

               Scaled-down cold flow model of ladle Time-averaged vertical liquid velocity distributions on different r-z-planes
Snapshots of time-evolution of tracer dispersion measured at mid plane using LIF for different bottom tuyere configurations (blue- zero; red- equilibrium and above concentration)

Particle-scale single-/two-phase flow in packed beds

Publications and Conferences:

·       Abhijeet H. Thaker, Abdul Quiyoom and Vivek V. Buwa, “Dynamics of Gas-Liquid Flow and Mixing in a Ladle: PIV and LIF Measurements”, accepted for presentation at the 12th International Symposium on Particle Image Velocimetry (ISPIV 2017) to be held in Busan, Korea during 19-21 June 2017.