Gas Turbine Engineering and Technology

LES of Blade-Wake Interactions

The objective is to keep pace with the recent technological advancement in the field of fluid mechanics and Gas Turbine. Emphasis is on simulation and measurement of unsteady flow fields in Gas Turbine environments. Importance has been equally given on fundamental studies and engineering applications. DNS and LES are applied to explore the physics of the flow. Our work is sufficiently broad to be relevant at the theoretical level to many applications, and to be of fundamental interest in its own right, independently of the valuable potential applications.

Research Areas

 

    • CFD applied to Turbomachinery: Aero-thermal analysis.

    • LES/DNS for complex transitional and turbulent flows.

    • Flow Instability, Laminar Separation Bubble.

    • Unsteady flows in Turbine/Compressor passage: Wake-Boundary layer Interactions and Film Cooling.

    • Aero-acoustics and control.

    • Flow and turbulence measurement using optical means.

    • Experimental investigation on aerodynamics of turbomachinery and transition of a separated boundary layer.

    • Heat transfer in rib-roughened ducts

    • Simulations of free and forced circular jets

    • Experimental and numerical investigations of bifurcating and blooming jets

    • Propulsion of underwater vehicles using synthetic jet


Research Laboratories:

 

  • Computational Turbomachinery Laboratory

  • Experimental Turbomachinery Laboratory

  • Gas Turbine Heat Transfer Laboratory

 

Associated Faculty

 

Arun K. Saha, PhD (IIT Kanpur): turbulance, chaos & bifurcation, vortex dynamics, hotwire anemometry, gas hydrates, experimental fluid dynamics and heat transfer, computational fluid dynamics and heat transfer

Subrata Sarkar, PhD (IIT Madras): turbomachinery, turbulence, computational fluid dynamics, LES, experimental fluid mechanics, heat transfer


Film cooling near the leading-edge: Jet Crossflow Interaction

 

Visualization of Wake distortion, orientation and stretching inside the blade passage

Heat Transfer in Rib-Roughened Ducts (Internal Cooling of Gas Turbine)

Instantaneous vorticity illustrating (a) transition of separated boundary layer when the wake is ahead of separation, (b) the formation of 3D vortex loop via when the wake crosses the rear half of the suction surface

 
 

 

  

Mohammad Mohsin

Designation:

Sr. Technical Superintendent

Office Address:

NETP (Lab) & ME(Vibration Lab)

Contact numbers:

0512-2597983, (O), 09919069368 (Mob)

+ - Experience Click to collapse

Before joining this institute , worked about 11 years & 08 Months with

  1. New Bharat Engineering Corporation.

  2. Networks Pvt. Ltd

  3. Jagran Micro Motors Pvt Ltd.

  4. U.P. Electronics Corporation Ltd.

  5. National Radio & Electronics Company Limited.

  6. Krisons Electronics Ltd.

  7. Since April 1991 to till date in Nuclear Engineering & Technology Program, Department of Mechanical Engineering.

+ - Achievements Click to collapse

Apart from routine activities, independently establishment of 4i Laboratory from layout preparation to installation of various machines like Milling Centre, Turning Centre, Prototype Machine, Laser Machine, Water Jet Cutting Machine & PCB making machine and all the power Equipment (servo stabilizers, isolation transformers & Power UPS).Involved in successful completion of following mega projects.

  • Technology Mission on Railway Safety.

  • Jugnu Nano Satellite.

  • Mems Based Health Management System.

  • And many small projects of few lacs.

+ - Routine Activities Click to collapse

  • Conducting Lab Course (PG) of Nuclear Engineering in the capacity of Lab Incharge.

  • Helping in conducting Lab Course (UG) of Vibration Lab (Deptt. of ME).

  • Helping in experiments to M.Tech & Phd students of Nuclear Engineering & Vibration Lab.

+ - Additional Activity Click to collapse

Involved in radiation issues of whole institute in the capacity of Radiological Safety Officer Level-1, my responsibilities are to help in approval of various labs for use of radio isotopes, to help to purchase of radioisotopes. Time to time check of radiation level in various labs, preparing annual reports and sending it to “Chairman Atomic Energy Regulatory Board-Mumbai” through faculty incharge of NETP lab Head Mechanical Engineering & Dean, R&D.

 

 

 
 

Transport Phenomena and Multi-Physics Simulations

 

Experimental and Numerical Studies of Blooming Jet

 

Researchers in the Transport Phenomena and Multi-Physics Simulations track work in the areas of theoretical, experimental and numerical methods for fluid flow and heat transfer related applications to provide a deeper insight on the phenomena which are relevant in nature and industry, e.g., flow in porous media, multiphase and multicomponent flow, interfacial phenomena, microfluidic systems, complex fluids and materials processing, hydrodynamic instabilities and flow control, atmospheric and oceanic fluid dynamics, granular flows and gravity currents. We have a wide expertise in heat and mass transfer in multiphase flows, turbulent flows, microflows and biological flows, optical techniques.

Research Areas

 

  • Computational fluid dynamics and heat transfer

  • Experimental fluid dynamics and heat transfer

  • Flow boiling in microchannels

  • Dropwise Condensation on textured surfaces

  • Optical techniques

  • Microfluidics and heat transfer

  • Targeted drug delivery using magnetofluidics

  • Hydrodynamic instabilities

  • Vortex dynamics

  • Dielectric Barrier Discharge plasma actuator for jet vectoring

  • Droplet hydrodynamics of protein crystallization

  • Heat transfer in nanofluids

  • Design of grain separators for agri/pharma sectors. Development of relevant computational tools

  • Heat Transfer in Rotary Kilns used for Drying and Production of Cement

Chaos in Stratospheric polar Vortex

Research Laboratories:

 

  • Fluid mechanics Laboratory

  • Computational Fluid Dynamics Laboratory

  • Computational Heat Transfer Laboratory

  • Micro-scale Transport Laboratory

  • Phase-change Thermal Systems Laboratory

  • Water Tunnel Facility

Pulsating Heat Pipes

 

Associated Faculty

 

Gautam Biswas, Ph.D. (IIT Kharagpur) (on deputation as the Director of IIT Guwahati): Computational fluid mechanics and heat transfer, turbulence

P. S. Ghoshdastidar, PhD (South Carolina) : computational heat transfer, rotary kiln modelling, non-Newtonian flow and heat transfer, simulation of boiling heat transfer

Anirban Guha, PhD (University of British Columbia, Vancouver): hydrodynamic instabilities, wave mechanics, vortex dynamics, chaotic flows, transport and mixing, gravity currents, flow over topography

Sameer Khandekar, PhD (Uni-Stuttgart): thermal management, passive heat transfer, heat pipes, energy systems

K. Muralidhar, PhD (Delaware): optical techniques, flow control hierarchical porous media

P. K. Panigrahi, PhD (LSU): laser based instrumentation, flow control, CAD of thermal systems, turbulence, micro-fluidics and heat transfer

Arun K. Saha, PhD (IIT Kanpur): turbulance, chaos & bifurcation, vortex dynamics, hotwire anemometry, gas hydrates, experimental fluid dynamics and heat transfer, computational fluid dynamics and heat transfer

Subrata Sarkar, PhD (IIT Madras): turbomachinery, turbulence, computational fluid dynamics, LES, experimental fluid mechanics, heat transfer

Ishan Sharma, PhD (Cornell University): mechanics of granular media, modeling granular systems for geophysical and industrial applications. stability and vibrations of structural and fluid-structural systems


Coalescence under a textured surface

 

Granular minor planets


Grain separators for agri/pharma sectors

 

Visualization of synthetic jets
 


Concentration boundary layer for alumina-water nanofluid

  

 
 

 

  

Mohd.Rais

Designation:

Junior Technical Superintendent

Office Address:

Energy Conversion Lab

Contact numbers:

0512-2597658 (O), 09415761322 (Mob)

+ - Experience Click to collapse

  • Worked with MT Section for 10 years

+ - Special Skills Click to collapse

  • Installed IC Engine Test-beds.

  • Good Knowledge of  repair all types of Diesel/Petrol Automobile Engines.

+ - Activities Click to collapse

  • Assistance for UG classes.

  • Assistance for Research work.