In this video, I explained Surging and choking of centrifugal compressor. i explained above theory by using graph of pressure ratio VS mass flow rate for centrifugal compressor.
It is the phenomenon which is caused due to unsteady, periodic and reversal of flow through the compressor when compressor has to operate at less mass flow rate than a predetermined value (a value corresponding to maximum pressure ratio).

Air Compressor:
Single stage Reciprocating compressor without clearance:    • Single stage Reciprocating compressor...  
Construction of centrifugal Compressor:    • Construction of Centrifugal Compressor  
Construction and working of axial flow compressor:    • Construction And Working of Axial Flo...  
Surging and choking of centrifugal compressor:    • Surging And Choking of Centrifugal Co...  
Hydraulic Turbine:
Classification of pelton wheel turbine:    • Classification of turbine  
Difference between impulse and reaction turbine:    • Difference between impulse and reacti...  
Head of turbine:    • Head of Turbine  
Efficiency of turbine:    • Efficiencies 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...  
Reaction turbine:    • Reaction Turbine  basic and main par...  
Francis Turbine:    • Francis turbine  
Velocity triangle ,work done and design procedure of francis turbine:    • Francis turbinevelocity triangle(ani...  
Kaplan turbine:    • kaplan Turbine   introduction,constru...  
Velocity triangle ,work done and design procedure of Kaplan turbine:    • kaplan turbine theory velocity diagra...  
Difference between Kaplan and Francis turbine :    • Difference between kaplan and francis...  
Draft tube and types of draft tube :    • Draft tube,function of draft tube and...  
Theory of draft tube :    • Theory of Draft Tube  
Specific Speed of turbine:    • Specific speed of turbine  
Unit quantities of turbine :    • Unit Quantities of Turbine  
Cavitation and cavitation in turbine :    • Cavitation and Cavitation in Turbine  
Why Governing of Turbines Is Required:    • Why Governing of Turbines Is Required  
Governing of Pelton Wheel Turbine:    • Governing of Pelton Wheel Turbine Wit...  
Governing of Francis Turbine :    • Governing of Francis Turbine  
Governing of Kaplan turbine :    / onyrtmoecr  
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Hydraulic Machine:
Hydraulic Press:    • Hydraulic Press with Animation  
Hydraulic Ram:    • Hydraulic Ram  
Hydraulic intensifier:    • Hydraulic intensifier  
Hydraulic Lift:    • Hydraulic lift with animation  
Air Lift Pump:    • Air Lift Pump  
Hydraulic Crane :    • Hydraulic Crane  
Hydraulic accumulator:    • Hydraulic Accumulator With Animation  
Hydraulic jack:    • Hydraulic Jack  
Fluid Coupling:    • Fluid Coupling  
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Hydro power plant:
Hydroelectric power plant (Animation of layout):    • Hydroelectric Power Plant  
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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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Pump:
Classification pump:    • Classification of Pump  
Centrifugal Pump:    • Centrifugal Pump With Animation Const...  
Classification of centrifugal Pump:    • classification of centrifugal Pump  
Velocity diagram and work done centrifugal pump:    • Velocity Diagram And Work Done By Imp...  
Head of centrifugal Pump :    • Head of centrifugal pump  
Efficiencies of Centrifugal Pump :    • Efficiencies of Centrifugal Pump  
Maximum Suction Lift OR Suction Height :    • Maximum Suction Lift or Maximum Sucti...  
Pressure Rise Through Impeller:    • Pressure Rise Through Impeller of Cen...  
Effect Of The Curvature Of Impeller Vane :    • Effect Of The Curvature Of Impeller V...  
Cavitation In Centrifugal Pump:    • Cavitation In Centrifugal Pump  
NPSH (Net Positive Suction Head) :    • NPSH Net Positive Suction Head  
Minimum Speed for Starting a Centrifugal Pump:    • Minimum Speed For Starting a Centrifu...  
Minimum Diameter of Impeller :    • Minimum Diameter of Impeller Minimum ...