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Two Phase Flow and Instability Lab




























Available equipment

High-speed camera A (fps > 1000), High-speed camera B (fps < 1000), High Definition DSLR camera, Data Acquisition System (NI - 9174 & NI 9178), Voltage Module (NI - 9205), Current Module (NI - 9208), Temperature Module (NI - 9213), Soap-bubble air flow meter, Variac, Aplab DC power supply (0 - 128 Volts), Non-contact type tachometer (0 - 1 lakhs rpm), Computational Facility A (Ubuntu OS - 3 racks, 128 GB RAM, 3.2 GHz per processor), Computational Facility B (Windows OS - 1 rack, 128 GB RAM, 3.2 GHz per processor)

Equipment Booking Form:

On-going work

  1. Computational Facilities and Work

Fig. Central Processing Unit racks



Computational Facility 1 ->

  • No. of racks: 3
  • No. of cores: 8 per rack.
  • Processors: Quad Core
  • Ram: 128 GB per rack
  • Clock Speed: 3.2 GHz per processor



Computational Facility 2 ->

  • No. of racks: 1
  • No. of cores: 14
  • Processors: Quad Core
  • Ram: 128 GB per rack
  • Clock Speed: 3.2 GHz per processor


Computational Fluid Dynamics & Post-processing Software Installed:


LINUX OS: Gerris, OpenFOAM, LAMMPS, LAMMPS-SPH, Tecplot, PARIS, Basililsk C, MATLAB, Python.


Windows OS: ANSYS (full-package), Tecplot, MATLAB, AutoCAD, SolidWorks


The main focus is on development and use of Computational Multi - Fluid Dynamics solvers. Algorithms are developed for coupling heat transfer with the robust Navier-Stokes multifluid equations (using VOF). Several industrial relevant areas, like phase change heat transfer, are also studied. Alongwith these, an Eulerian-Lagrangian approach is also developed to study multiscale problems.


  1. Bottle Emptying


Bottle emptying apparatus is used for evaluating the flow characteristics of commercial products like beverages, ketchup and viscous chemicals by using high speed photography.


The apparatus can be utilized to visualize the emptying dynamics of the bottle and to further validate the bottle design for a particular fluid.





  1. Heat Transfer Characteristics of Refrigerants

Experimental setup built to study the heat transfer characteristics of eco-friendly refrigerants consisting four main components as in any refrigeration system, namely evaporator, compressor, condenser and expansion valve.