Draft tube,function of draft tube and types of draft tube

In this video, I Explained definition of Draft tube, Function of Draft tube, Types of draft tube.
And I also explained in which turbine draft tube is used and why it is used in reaction turbine.

Video link:
Hydraulic Turbine:
Classification of pelton wheel turbine:    • Classification of turbine  
Pelton wheel turbine.    • Pelton Wheel Turbine  
Velocity Triangle, Work done, efficiency and maximum efficiency of pelton wheel turbine :    • Velocity Triangle, Work done, efficie...  
Design Aspect of pelton wheel turbine:    • important parameter for design of pel...  
Specific Speed of turbine:    • Specific speed of turbine  
Draft tube and types of draft tube :    • Draft tube,function of draft tube and...  
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Impact of Jet
Introduction of Impact of Jet :    • Introduction of impact of jet  
Impact of Jet on Fixed vertical Plate :    • Impact of jet on fixed vertical plate  
Impact of Jet on Fixed Inclined Plate :    • Impact of Jet on Fixed Inclined Plate  
Impact of Jet on Fixed Curved Plate (Jet Strikes at the centre) :    • Impact of Jet on Fixed Curved Plate a...  
Impact of Jet on Fixed Curved Plate (Jet Strikes at tangentially) :    • Impact of jet on Fixed Curved Plate J...  
Impact Of jet on Hinge Plate :    • Impact of jet on hinged plate  
Impact of Jet on Moving Vertical Flat Plate :    • Impact of Jet on Moving Vertical Flat...  
Impact of Jet on Moving Inclined Plate :    • Impact of jet on moving inclined plate  
Moving curved plate when jet strike at center:    • impact of jet on moving curved plate ...  
Impact Of Jet On Moving Curved Plate Strikes One End Of The Tip Tangentially :    • Impact Of Jet On Moving Curved Plate ...  
Impact Of Liquid Jet On Series Of Flat Plate Mounted On A Wheel :    • Impact Of Liquid Jet On Series Of Fla...  
Jet propulsion :    • Jet Propulsion  
Propulsion of ship :    • propulsion of ship  
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Every mechanical Engineer need to know
Difference between COP and Efficiency:    • Difference Between COP and Efficiency.  
Meaning of a in R134a in Refrigerant :    • Meaning of a in R134a  
Sensible And Latent Heat :    • Sensible And Latent Heat  
How to make water from air:    • हवा से पानी कैसे बनाते हैं how to mak...  
Difference Between Cooling and Refrigeration:    • Difference Between Cooling and Refrig...  
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Hydraulic Ram :    • Hydraulic Ram  
Hydraulic intensifier    • Hydraulic intensifier