Future Sky Safety EREA wake vortex workshop 8 JUNE 2016 ... · WiDAO (2011) Pairwise Separation...

Wake research needs

Future Sky Safety EREA wake vortex workshop 8 JUNE 2016 - DLR Braunschweig

Vincent Treve

Runway throughput project manager

Outline

� Research needs in wake physics

� Research needs in wake monitoring

� Research needs in pilot training

� Research need in wake alleviation

Research needs in wake physics

Wake behaviour characterisation

Frankfurt

Paris

London

Dubai (through cooperation agreement)

Research needs in wake physics

Research needs in wake physics

• Wake decay in Reasonable Worst Case

• Wake decay as function of wind

• Wake transport as function of wind

• Wake generation and decay as function of weight, speed and wing loading

Research needs in wake physics

Wake effect and severity impact characterisation

Research needs in wake physics

Wake effect and severity impact characterisation

100+ hours flight test (wake encounters)

900 flight sim runs (wake encounters)

Research needs in wake physics

Research needs in wake physics

• Methodology for computation of induced rolling moment

• Definition of RMC formulation

• Validation against flight tests

• Verification of severity impact as a function RMC

WiDAO (2011)

Pairwise Separation

(2016)

Time Based Separation

(2016)Weather

DependantSeparation

(2017)

ICAO A380 (2008)

ICAO B747-8 (2012)

RECAT-EU (2014)

Time Based Separation

(2016)

A350 (2015)

RECAT-EU (2016)

Generic

Deployment

June ‘16Research needs in wake physics

Research needs in wake physics for approach phase of flight

Wake characterisation

Effect on aircraft

Impact on severity

• In RWC (PWS)• In headwind conditions (TBS)• In windy conditions (WDS)

• Define Mx as a function of Г• Dimensionless Metric definition

(RMC)

• Link between RMC and severity

Research needs in wake physics for approach phase of flight

Wake characterisation

Effect on aircraft

Impact on severity

• In RWC (PWS)• In headwind conditions (TBS)• In windy conditions (WDS)

• Define Mx as a function of Г• Dimensionless Metric definition

(RMC)

• Link between RMC and severity

Research needs in wake physics for approach phase of flight

Wake characterisation

Effect on aircraft

Impact on severity

• In RWC (PWS)• In headwind conditions (TBS)• In windy conditions (WDS)

• Define Mx as a function of Г• Dimensionless Metric definition

(RMC)

• Link between RMC and severity

Research needs in wake physics for approach phase of flight

Wake characterisation

Effect on aircraft

Impact on severity

• In RWC (PWS)• In headwind conditions (TBS)• In windy conditions (WDS)

• Define Mx as a function of Г• Dimensionless Metric definition

(RMC)

• Link between RMC and severity

Research needs in wake physics for approach phase of flight

Wake characterisation

Effect on aircraft

Impact on severity

• In RWC (PWS)• In headwind conditions (TBS)• In windy conditions (WDS)

• Define Mx as a function of Г• Dimensionless Metric definition

(RMC)

• Link between RMC and severity

Research needs in wake physics for approach phase of flight

Wake characterisation

Effect on aircraft

Impact on severity

• In RWC (PWS)• In headwind conditions (TBS)• In windy conditions (WDS)

• Define Mx as a function of Г• Dimensionless Metric definition

(RMC)

• Link between RMC and severity

Research needs in wake physics for approach phase of flight

Wake characterisation

Effect on aircraft

Impact on severity

• In RWC (PWS)• In headwind conditions (TBS)• In windy conditions (WDS)

• Define Mx as a function of Г• Dimensionless Metric definition

(RMC)

• Link between RMC and severity

WiDAO (2011)

Pairwise Separation

(2016)

Time Based Separation

(2016)Weather

DependantSeparation

(2017)

ICAO A380 (2008)

ICAO B747-8 (2012)

RECAT-EU (2014)

Time Based Separation

(2016)

A350 (2015)

RECAT-EU (2016)

Generic

Deployment

June ‘16Research needs in wake physics

Research needs in wake physics for departure phase of flight

Wake characterisation

Effect on aircraft

Impact on severity

• In RWC (PWS)• In windy conditions (WDS)

• Define Mx as a function of Г• Dimensionless Metric definition

(RMC)

• Link between RMC and safety• Safety case preparation

Research needs in wake physics for departure phase of flight

Wake characterisation

Effect on aircraft

Impact on severity

• In RWC (PWS)• In windy conditions (WDS)

• Define Mx as a function of Г• Dimensionless Metric definition

(RMC)

• Link between RMC and safety• Safety case preparation

Research needs in wake physics for departure phase of flight

Wake characterisation

Effect on aircraft

Impact on severity

• In RWC (PWS)• In windy conditions (WDS)

• Define Mx as a function of Г• Dimensionless Metric definition

(RMC)

• Link between RMC and safety• Safety case preparation

Research needs in wake physics for departure phase of flight

Wake characterisation

Effect on aircraft

Impact on severity

• In RWC (PWS)• In windy conditions (WDS)

• Define Mx as a function of Г• Dimensionless Metric definition

(RMC)

• Link between RMC and safety• Safety case preparation

Research needs in wake physics for departure phase of flight

Wake characterisation

Effect on aircraft

Impact on severity

• In RWC (PWS)• In windy conditions (WDS)

• Define Mx as a function of Г• Dimensionless Metric definition

(RMC)

• Link between RMC and safety• Safety case preparation

Research needs in wake physics for departure phase of flight

Wake characterisation

Effect on aircraft

Impact on severity

• In RWC (PWS)• In windy conditions (WDS)

• Define Mx as a function of Г• Dimensionless Metric definition

(RMC)

• Link between RMC and safety• Safety case preparation

Research needs in wake physics for departure phase of flight

Wake characterisation

Effect on aircraft

Impact on severity

• In RWC (PWS)• In windy conditions (WDS)

• Define Mx as a function of Г• Dimensionless Metric definition

(RMC)

• Link between RMC and safety• Safety case preparation

Research needs in wake physics for departure phase of flight

Wake characterisation

Effect on aircraft

Impact on severity

• In RWC (PWS)• In windy conditions (WDS)

• Define Mx as a function of Г• Dimensionless Metric definition

(RMC)

• Link between RMC and safety• Safety case preparation

Data collection and data mining

Theoretical research / flight test

Flight simulation

Research needs in wake monitoring

Most concepts require post-implementation

monitoring phase

Effect on aircraft

Safety assessment

Wake measurement may be needed for objective risk

monitoring

Better methodology is needed for WVE report

analysis

More FDR data analysis is needed

A posteriori severity criteria need to be defined

Research needs in wake monitoring

Most concepts require post-implementation

monitoring phase

Effect on aircraft

Safety assessment

Wake measurement may be needed for objective risk

monitoring

Better methodology is needed for WVE report

analysis

More FDR data analysis is needed

A posteriori severity criteria need to be defined

Research needs in wake monitoring

Most concepts require post-implementation

monitoring phase

Effect on aircraft

Safety assessment

Wake measurement may be needed for objective risk

monitoring

Better methodology is needed for WVE report

analysis

More FDR data analysis is needed

A posteriori severity criteria need to be defined

Research needs in wake monitoring

Most concepts require post-implementation

monitoring phase

Effect on aircraft

Safety assessment

Wake measurement may be needed for objective risk

monitoring

Better methodology is needed for WVE report

analysis

More FDR data analysis is needed

A posteriori severity criteria need to be defined

Research needs in wake monitoring

Most concepts require post-implementation

monitoring phase

Effect on aircraft

Safety assessment

Wake measurement may be needed for objective risk

monitoring

Better methodology is needed for WVE report

analysis

More FDR data analysis is needed

A posteriori severity criteria need to be defined

Research needs in wake monitoring

Most concepts require post-implementation

monitoring phase

Effect on aircraft

Safety assessment

Wake measurement may be needed for objective risk

monitoring

Better methodology is needed for WVE report

analysis

More FDR data analysis is needed

A posteriori severity criteria need to be defined

Standardisation of reporting

Automatic WVE detection in FDR

FDR/report analysis / Flight simulation

WiDAO (2011)

Pairwise Separation

(2016)

Time Based Separation

(2016)Weather

DependantSeparation

(2017)

ICAO A380 (2008)

ICAO B747-8 (2012)

RECAT-EU (2014)

Time Based Separation

(2016)

A350 (2015)

RECAT-EU (2016)

Generic

Deployment

June ‘16Research needs in wake monitoring

Research needs in wake alleviation

Reduction of wake impact on aircraft

Effect on aircraft

Safety assessment

Pilot warning system

Wake detection

Pilot training

Research needs in wake alleviation

Reduction of wake impact on aircraft

Effect on aircraft

Safety assessment

Pilot warning system Pilot training

Wake detection

Research needs in wake alleviation

Reduction of wake impact on aircraft

Effect on aircraft

Safety assessment

Pilot warning system Pilot training

Wake detection

Research needs in wake alleviation

Reduction of wake impact on aircraft

Effect on aircraft

Safety assessment

Pilot warning system Pilot training

Wake detection

Research needs in wake alleviation

Reduction of wake impact on aircraft

Effect on aircraft

Safety assessment

Pilot warning system Pilot training

Based on model and trajectories

Wake detection

LiDAR or AoA / AoS variation

Flight simulation module

Summary of research needs

� Wake physics to be further analysed for departure� More wake measurement campaigns needed � Validation and/or adaptation of severity metric and criteria for departure

� FDR analyses are needed for � Supporting safety monitoring after deployment of new concepts� better understanding WVE� Defining a-posteriori severity criteria

� Wake detection for � Better pilot reaction (training)� Aircraft automatic correction

Additional work to be undertaken / continued

� Development of system for delivering complex wake separation� As a function of weather condition� Defined pairwise

This kind of system needs� adequate wind prediction � Reliable aircraft speed model

� Before inventing new things, know-how shall be used for supporting deployment

Question?