Advanced Propulsion and Laser Diagnostics (APLD) Facility is setup with an objective to perform propulsion research studies through laser diagnostic techniques. The laboratory have the capability to perform PIV and PLIF measurements, and is equipped with: (i) Double Pulsed Nd-YAG PIV Laser , (ii) Precision Dye Laser, (iii) Intensified CCD Camera, (iv) PIV CCD Camera (v) High Resolution Wavemeter (vi) Optical Tables, (vii) Optical Components and (viii) High Speed DAQ System. The lab would shortly be upgraded with a second dye laser for two line LIF thermometry measurements and particle size analyser for droplet size measurements.

The basic propulsion facilities established under APLD are;

• Test Setup for Rocket Injector Spray Characterisation from atmospheric to critical conditions,
• Single Element Coaxial Combustion Facility, and
• Supersonic Free Jet Facility
  Academic/project activities ongoing in this facility finds relevance to various ISRO activities such as (i) Evaluation of 'Mixing and Combustion' efficiency of the fuel-oxidiser jet for any real scale engines (ii) Injector design based on characterisation of jet at supercritical conditions (iii) investigations on combustion Instability etc.