Water turbine took about one hundred years. Development occurred during the Industrial revolution, using scientific principles and methods. They also made extensive use of new materials and manufacturing methods developed at the time. The word turbine was introduced by the French engineer Claude Burdin in the early 19th century and is derived from the Greek word "τύρβη" for "whirling" or a "vortex". The main difference between early water turbines and water wheels is a swirl component of the water which passes energy to a spinning rotor. This additional component of motion allowed the turbine to be smaller than a water wheel of
Gas Turbine Research Establishment Gas Turbine Research Establishment Gas Turbine Research Establishment (GTRE) is a laboratory of the Defence Research and Development Organisation (DRDO). Located in Bangalore, its primary function is research and development of aero gas-turbines for military aircraft. As a spin-off effect, GTRE has been developing marine gas-turbines also. Principal achievements of Gas Turbine Research Establishment include: GTX-35VS Kaveri Engine was intended to power production models of HAL Tejas. Defending the program GTRE mentioned reasons for delay including: Both hurdles having been cleared, GTRE intended to continue work on the AMCA (future generation fighter craft). This program was abandoned in 2014. Kaveri