Spinning of a Twisted Airfoil-Shaped Blade
Blade sections near the center have Lower Speed
Blade sections near the Tip have Higher Speed
Movement of Blade Draws Fluid (Air, Water, Liquid, Gas)
Speed is Inversely Proportional to Pressure (Bernoulli's principle)
Fluid near blade center have Lower Speed but Higher Pressure
Fluid near blade tip have Higher Speed but Lower Pressure
Drawing of Airfoil (Aerofoil) shape of Propeller Blade.
Fluid flows from Higher Pressure to Lower Pressure
Every action has an equal and opposite reaction (Newton’s Third Law of Motion)
Propeller exerts force to the Water --> Water pushes the Ship, Boat forward
Propeller exerts force to the Air ------> Air pushes the Airplane, Aircraft forward
Pressure Differential creates Forward Force called Thrust --> Ship, Boat, Airplane
Pressure Differential produces Upward Force called Lift ----> Airplane, Aircraft
BLOG POSTS:
http://mechanical-marine-systems-engineering.blogspot.ca/
ALPHABETICAL LISTING OF ALL MY BLOGS:
http://miscellaneous-topics.blogspot.ca/2012/12/alphabetical-listing-of-all-my-blogs.html
