Energy and Environmental Flow Laboratory서울대... · 2020. 9. 29. · Fundamental Applied...

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Energy and Environmental Flow Laboratory Prof. Wontae Hwang 2020. 09. 24 Open Lab GE 7HA

Transcript of Energy and Environmental Flow Laboratory서울대... · 2020. 9. 29. · Fundamental Applied...

Page 1: Energy and Environmental Flow Laboratory서울대... · 2020. 9. 29. · Fundamental Applied Particle Image Velocimetry (PIV) Magnetic Resonance Velocimetry Research Introduction

Energy and Environmental FlowLaboratory

Prof. Wontae Hwang

2020. 09. 24

Open Lab

GE 7HA

Page 2: Energy and Environmental Flow Laboratory서울대... · 2020. 9. 29. · Fundamental Applied Particle Image Velocimetry (PIV) Magnetic Resonance Velocimetry Research Introduction

AppliedFundamental

Magnetic Resonance VelocimetryParticle Image Velocimetry (PIV)

Research Introduction

GE 7HA

2

Infrared Thermography &

Ultra High-Speed Imaging

Real-time turbine blade

thermal imaging

Gas turbine blade internal

cooling flowHomogeneous Isotropic

Turbulence

Page 3: Energy and Environmental Flow Laboratory서울대... · 2020. 9. 29. · Fundamental Applied Particle Image Velocimetry (PIV) Magnetic Resonance Velocimetry Research Introduction

Preferential concentration of particles

PIV

미세먼지유동

Fine dust in Seoul Turbulence Chamber

Instantaneous flow field

Laser

Camera

HIT

chamber

Particle inlet

Page 4: Energy and Environmental Flow Laboratory서울대... · 2020. 9. 29. · Fundamental Applied Particle Image Velocimetry (PIV) Magnetic Resonance Velocimetry Research Introduction

입자-액적 interaction

Droplet shape change

measurement using shadowgraphy

Axis ratio : 0.85

Flat bottom

Page 5: Energy and Environmental Flow Laboratory서울대... · 2020. 9. 29. · Fundamental Applied Particle Image Velocimetry (PIV) Magnetic Resonance Velocimetry Research Introduction

광자물질상호작용

Particle dispersion control

Particle preferential concentration

Shockwave

Temperature fluctuation measurement

Hot-gas vortex

focused Rayleigh

scattering

Photomultiplier

tube

Combustion chamber

Schlieren video

( Flame Front)

laser-induced

breakdown

Photomultiplier tube

CW Laser

Turbulence chamber

Page 6: Energy and Environmental Flow Laboratory서울대... · 2020. 9. 29. · Fundamental Applied Particle Image Velocimetry (PIV) Magnetic Resonance Velocimetry Research Introduction

호흡기내유동및호흡기외부비말거동분석

3T MRI Scanner at SNU hospitalCT scanned human

respiratory systemEnvironmental chamber

Droplet dispersion

(image from Chris Rogers, Getty Images)

Laryngeal jet in larynx

(Kleinstreuer et al. 2010)

Page 7: Energy and Environmental Flow Laboratory서울대... · 2020. 9. 29. · Fundamental Applied Particle Image Velocimetry (PIV) Magnetic Resonance Velocimetry Research Introduction

Gas Turbine Engineering Handbook

Magnetic Resonance Velocimetry

Turbine blade cooling flow

Flow conditioning sections

Test section

Plenum & Bellmouth

터빈블레이드냉각유동

Quantitative visualization of internal cooling flow

Internal cooling surface heat transfer

Flow

Baffle Grid

Flow characteristics in realistic serpentine passage

Page 8: Energy and Environmental Flow Laboratory서울대... · 2020. 9. 29. · Fundamental Applied Particle Image Velocimetry (PIV) Magnetic Resonance Velocimetry Research Introduction

Infrared (IR) Thermography

Combustor thru-flame imaging

Turbine blade thermal imaging

터빈고온부품열계측

Turbine blade real-time imaging

CFD for purge tip design

Page 9: Energy and Environmental Flow Laboratory서울대... · 2020. 9. 29. · Fundamental Applied Particle Image Velocimetry (PIV) Magnetic Resonance Velocimetry Research Introduction

터빈공력손실분석

Combustor simulator and turbine cascade

Swirl flow prior to the nozzle guide vane

(Werschnik et al., 2017)

Experimental setup

Hot streak propagation within an

integrated combustor / turbine model

(Insinna et al., 2014)

Page 10: Energy and Environmental Flow Laboratory서울대... · 2020. 9. 29. · Fundamental Applied Particle Image Velocimetry (PIV) Magnetic Resonance Velocimetry Research Introduction

Gas Turbine Blade Internal Cooling Technology

Atmospheric fine dust flow

Gas Turbine Blade Real-Time Thermal Imaging

Power Generation

Gas Turbine

Fundamental Turbulence

Current Research Projects

Droplet-particle adsorption mechanism analysis

Dynamic analysis of respiratory droplets

Transient flow structure in the respiratory system

Combustor-turbine interaction and turbine aerodynamic loss assessment

Page 11: Energy and Environmental Flow Laboratory서울대... · 2020. 9. 29. · Fundamental Applied Particle Image Velocimetry (PIV) Magnetic Resonance Velocimetry Research Introduction

Current Members Open Positions

Ph.D candidates 6

M.S. candidates 4

Undergraduate interns 3

AddressSeoul, 1 Gwanak-ro, Gwanak-gu, Building 301, Room 1215

Phone+82-2-880-7118

[email protected]

We are currently looking for enthusiastic

graduate/undergraduate students.

Contact us before applying for graduate school.

We encourage lab internships.

Page 12: Energy and Environmental Flow Laboratory서울대... · 2020. 9. 29. · Fundamental Applied Particle Image Velocimetry (PIV) Magnetic Resonance Velocimetry Research Introduction

Backup

Page 13: Energy and Environmental Flow Laboratory서울대... · 2020. 9. 29. · Fundamental Applied Particle Image Velocimetry (PIV) Magnetic Resonance Velocimetry Research Introduction

Applied Fundamental

Gas turbine blade cooling technology

Atmospheric fine dust flow

Turbine blade thermal imaging

Research Introduction