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Fluid Mechanics

Chapter 0 Why Fluid Mechanics?

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Chapter 0 Why Fluid Mechanics?

Contents

0.1 Speculation of Leonardo da Vinci

0.2 Physics of Golf

0.3 Water Resources

0.4 Dams

0.5 Hydropower Plants

0.6 Floods

0.7 River Navigation

0.8 River Recreation

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Chapter 0 Why Fluid Mechanics?

Objectives

- Find your motivation to attend this class

- Introduce practical applications of fluid mechanics

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0.1 Speculation of Leonardo da Vinci

BridgePier

Horseshoe Vortex

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0.1 Speculation of Leonardo da Vinci

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0.1 Speculation of Leonardo da Vinci

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Velocity field around/within a single cylinder

Momentum reduction by quadratic drag law formulation.– Governing equations including the drag law formulation.

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Velocity fields

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Staggered array cases

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III. Mixing around multiple obstacles

Mixing around staggered arrays

– LG/D = 2 and LT/D=2

– LG/D = 10 and LT/D=2

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0.2 Physics of Golf

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0.2 Physics of Golf

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0.2 Physics of Golf

Drag (Resistance) force

Separation

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0.2 Physics of Golf

Bio mimicking

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0.2 Physics of Golf

TurbulentEddy

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0.2 Physics of Golf

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0.2 Physics of Golf

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0.2 Physics of Golf

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03 Water Resources

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0.4 Dams

높이 97.5미터, 길이 464미터총저수량 27.5억톤㎥발전출력: 400,000 kW

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0.4 Dams

높이 72m; 길이 495m유효저수용량 14.9억㎥

높이 123미터, 길이 530미터총저수량 29억톤㎥

http://terms.naver.com/imageDetail.nhn?docId=535345&imageUrl=http://dbscthumb.phinf.naver.net/2644_000_3/20150325010235525_OP4191IAY.jpg/c60e1914-5503-4c.jpg?type%3Dm935_fst_nce%26wm%3DYhttp://terms.naver.com/imageDetail.nhn?docId=535345&imageUrl=http://dbscthumb.phinf.naver.net/2644_000_3/20150325010235525_OP4191IAY.jpg/c60e1914-5503-4c.jpg?type%3Dm935_fst_nce%26wm%3DY

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0.4 Dams

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유바리댐:높이: 110 m길이: 390 m저수용량: 4억3천만 m3

발전출력: 26,000 kW

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0.5 Hydropower Plants

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0.5 Hydropower Plants

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0.5 Hydropower Plants

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0.5 Hydropower Plants

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0.5 Hydropower Plants

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0.6 Floods

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0.6 Floods

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0.7 River Navigation

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0.7 River Navigation

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0.7 River Navigation

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0.8 River Recreation

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Motivation

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Motivation

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Motivation

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Fluid MechanicsChapter 0 Why Fluid Mechanics?Chapter 0 Why Fluid Mechanics?0.1 Speculation of Leonardo da Vinci ��0.1 Speculation of Leonardo da Vinci ��0.1 Speculation of Leonardo da Vinci ��Velocity field around/within a single cylinderVelocity fieldsStaggered array cases0.2 Physics of Golf��0.2 Physics of Golf��0.2 Physics of Golf��0.2 Physics of Golf��0.2 Physics of Golf��0.2 Physics of Golf��0.2 Physics of Golf��0.2 Physics of Golf��03 Water Resources0.4 Dams��0.4 Dams��0.4 Dams0.5 Hydropower Plants��0.5 Hydropower Plants��0.5 Hydropower Plants��0.5 Hydropower Plants��0.5 Hydropower Plants��0.6 Floods��0.6 Floods��0.7 River Navigation��0.7 River Navigation��0.7 River Navigation��0.8 River Recreation��MotivationMotivationMotivation