FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Bluff Body Aerodynamics

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Presentation transcript:

FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Bluff Body Aerodynamics Senna CFD – Vortex Shedding CFD – Wake Characterization / Dynamic Loading 87-351 Fluid Mechanics

Wings Come in Various Forms FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Bluff Body Aerodynamics The Classic Airfoil Controlling the B/L Wings Come in Various Forms 87-351 Fluid Mechanics

Harrier Jump Jet (VTOL) FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Bluff Body Aerodynamics X35 Joint Strike Fighter Harrier Jump Jet (VTOL) Avro Arrow: “Nobody’s building fighters anymore – everyone wants missiles” 87-351 Fluid Mechanics

Trailing Wing Tip Vortices FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Bluff Body Aerodynamics Vortex Persistence Trailing Wing Tip Vortices Take Off and Landing Staging 87-351 Fluid Mechanics

Who Knew Santini Air Was Just a Cover? FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Bluff Body Aerodynamics A Rotating Wing Who Knew Santini Air Was Just a Cover? 87-351 Fluid Mechanics

FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Bluff Body Aerodynamics Wine Is a Fluid Solvang, Ca  Home to “Sideways” and “Airwolf” 87-351 Fluid Mechanics

Bigger Wings Mean Bigger Lift Sikorsky Sky Crane FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Bluff Body Aerodynamics Bigger Wings Mean Bigger Lift Sikorsky Sky Crane 87-351 Fluid Mechanics

Another Flying Spinning Wing FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Bluff Body Aerodynamics Another Flying Spinning Wing Dimpley Goodness The Prolate Spheroid 87-351 Fluid Mechanics

Horizontal Axis Wind Turbines FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Bluff Body Aerodynamics Horizontal Axis Wind Turbines 87-351 Fluid Mechanics

Tehachapi Pass, California FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Bluff Body Aerodynamics Tehachapi Pass, California 87-313 Fluid Mechanics and Hydraulics

Vertical Axis Wind Turbines FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Bluff Body Aerodynamics Vertical Axis Wind Turbines Darrieus Savonius H 87-351 Fluid Mechanics

Free Surface Deformations are Extremely Difficult to Predict FLUID MECHANICS - NOW THAT’S A GOOD TIME!: River Mechanics Open Channel Flow – Exceeds Rocket Science? Free Surface Deformations are Extremely Difficult to Predict 87-351 Fluid Mechanics

Meandering Rivers - Secondary Flows - Alluvial Beds FLUID MECHANICS - NOW THAT’S A GOOD TIME!: River Mechanics Meandering Rivers - Secondary Flows - Alluvial Beds - Material Transport 87-351 Fluid Mechanics

- Well Developed Theory FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Closed Conduits Pipe Flow - Well Developed Theory - A Multitude of Applications 87-351 Fluid Mechanics

Blood is a Tricky Fluid with a Tricky Flow (pseudo steady in the mean) FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Hemodynamics Blood is a Tricky Fluid with a Tricky Flow (pseudo steady in the mean) Aerteries are Irregular Conduits 87-351 Fluid Mechanics

Dams Can Offer Hydraulic Controls for Open Channels FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Hydrostatics Dams Can Offer Hydraulic Controls for Open Channels They Can Also Provide Substantial Clean Power 87-351 Fluid Mechanics

FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Naval Hydrodynamics Who Said the Destroyer was Finished? – Northrop Grumman’s ddx 87-351 Fluid Mechanics

FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Rec Hydrodynamics SAR’s Slalom Ski – Good Hydrodynamics The “Chariot” – Poor Hydrodynamics 87-351 Fluid Mechanics

FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Hydrodynamic Power Offshore Tidal Turbines Offer Another Promising Renewable Power Source  Water has Higher Power Density than Air 87-351 Fluid Mechanics

Many Creative Variants Exist to Harvest Energy From the Waves FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Wave Energy Many Creative Variants Exist to Harvest Energy From the Waves 87-351 Fluid Mechanics

FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Meteorology Hurricanes – Massive Devastation We Know Too Well  The Complexity of Formation and Duration is Still Being Unravelled 87-351 Fluid Mechanics

The Tornado Still Owns the Land Speed Record FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Meteorology The Tornado Still Owns the Land Speed Record (And is No Better Understood) 87-351 Fluid Mechanics

The Supercharger The Turbocharger (Who Needs Nitrous?) FLUID MECHANICS - NOW THAT’S A GOOD TIME!: Turbomachines The Supercharger The Turbocharger (Who Needs Nitrous?) 87-351 Fluid Mechanics