![]() ![]() |
![]() |
Vivek V. Buwa |
Advanced Flow Characterization |
Dynamics of Gas-Liquid Flow and Mixing in a Shallow Vessel |
Gas–liquid reactors are widely used for different applications
in the chemical, metallurgical, oil and gas industries. These reactors
are broadly categorized into two groups namely tall columns (with height
to diameter ratio (H/D) > 5), e.g., bubble column, airlift reactor,
etc., and shallow vessels (H/D < 1), e.g., Basic Oxygen Furnace (BOF),
Ladle, etc. In these reactors, liquid–phase mixing is achieved either by
mechanical agitation or mixing induced by gas bubbles. In the
metallurgical industries, due to high temperatures and harsh environment
in the molten metal baths, gas–induced mixing is used in the shallow
vessels. The extent of gas–liquid mixing is closely related to the local
liquid flow field induced by single/multiple bubble plumes and different
bottom blowing configurations. In shallow vessels, the free gas–liquid
interface influences the meandering motion of the gas plume and also the
local liquid recirculation flow. |
![]() |
Schematic of experimental set–up |
![]() ![]() |
Measurement planes
Snapshot of (i) time–averaged liquid field velocity contour, (ii) streamlines and (iii) tracer distribution of the plane 1 |
PIV Videos: Instantaneous liquid phase velocity |
|
LIF Videos: Time–evolution of tracer distribution (LIF) |
Publications/conference presentations: |
|