Journey so far & Its MissionJourney so far & Its MissionPast, Present, and FuturePast, Present, and Future

Dr. K. Poddar

National Wind Tunnel Facility, IITK National Wind Tunnel Facility, IITK

NWTF (IITK)

Presentation Overview

Introduction

Report on NWTF activities (2006 – 2008)

Projected Activities for next 3 years (2009 – 2011)

Strengthening NWTF team

Proposed HRD Plan

Proposed Academic Programs

Proposed Expansion Programs• Experimental Facilities• Computational Facilities• Design & Inspection Facilities

Background National studies coordinated under the auspices of AR&DB in the late eighties

identified a strong need for a low speed wind tunnel in India to provide Indian Industry with adequate support in experimental aerodynamics for effective development work. Thus, a National Wind Tunnel Facility Project (NWTF-P) was initiated.

NWTF was conceived as an autonomous activity at IIT Kanpur in the academic environment, with the objective to construct, operate, maintain and further develop the wind tunnel facility as a Users’ Facility.

Further, due to funding constraints it was decided to implement the project in two phases as follows:

Phase I Tunnel circuit, fan, motor, and drive system Model support mechanism, turntables, and instrumentation

Phase II Test section parking hall and tunnel control room Instrumentation and calibration rooms Model design, inspection, integration rooms and model shop Wind tunnel offices, conference room, model display room

NWTF (IITK)

National Wind Tunnel FacilityEstablished in 1999 with the financial support from Established in 1999 with the financial support from AR&DB, DST, and IIT Kanpur, the National Wind AR&DB, DST, and IIT Kanpur, the National Wind Tunnel Facility (NWTF) has unique and nationally Tunnel Facility (NWTF) has unique and nationally recognized capabilities to evaluate aerodynamic recognized capabilities to evaluate aerodynamic performance of flight and road vehicles as well as performance of flight and road vehicles as well as wind effects on civil engineering structures.wind effects on civil engineering structures.

Special CapabilitiesSpecial Capabilities Full-model testing with sting support systemFull-model testing with sting support system 2-D model testing using turntables2-D model testing using turntables Open jet testingOpen jet testing Flow diagnostic using PIV & visualizationFlow diagnostic using PIV & visualization Ground effect simulation with moving beltGround effect simulation with moving belt Gust and cross-wind simulationGust and cross-wind simulation ABL simulation for civil applicationsABL simulation for civil applications

Important featuresImportant features• High Reynolds Number simulationHigh Reynolds Number simulation• Very low turbulenceVery low turbulence• Interchangeable mobile test sectionsInterchangeable mobile test sections• Automated measurement & control systemsAutomated measurement & control systems

NWTF (IITK)

Major contributionsMajor contributions In house R&D activities through sponsored and consultancy In house R&D activities through sponsored and consultancy

projectsprojects

Interdisciplinary and Inter-departmental interaction through Interdisciplinary and Inter-departmental interaction through support for PG Students’ Thesis and faculty R&D projectssupport for PG Students’ Thesis and faculty R&D projects

R&D support for National Aerospace Programs of ADA, R&D support for National Aerospace Programs of ADA, ADE, ADRDE, ARDE, DRDL, NAL, VSSC ADE, ADRDE, ARDE, DRDL, NAL, VSSC

R&D support to Civil Engineering industryR&D support to Civil Engineering industry HRD through short courses and symposiumsHRD through short courses and symposiums

National Wind Tunnel Facility

NWTF is committed to take up sponsored and consultancy projects of national importance as NWTF is committed to take up sponsored and consultancy projects of national importance as well as supporting academic research at IIT Kanpurwell as supporting academic research at IIT Kanpur ..

Space Capsule Recovery Experiments

Active Research AreasActive Research AreasDecelerator aerodynamics, unsteady and high angleDecelerator aerodynamics, unsteady and high angleof attack aerodynamics, Low Re aerodynamics, flow of attack aerodynamics, Low Re aerodynamics, flow controls, ground effect on flight and road vehicles, controls, ground effect on flight and road vehicles, Automobile aerodynamics wind effect on structures, Automobile aerodynamics wind effect on structures, virtual instrumentationvirtual instrumentation

LTA on Sting Support System

NWTF (IITK)

NWTF UsersNWTF Users

Academic Institutions:Academic Institutions: IIT Kanpur, IIT Delhi, IIT BombayIIT Kanpur, IIT Delhi, IIT Bombay

ISRO:ISRO: VSSCVSSC

CSIR:CSIR: NALNAL

DRDO:DRDO: ADA, ADE, ADRDE, ARDE, DRDLADA, ADE, ADRDE, ARDE, DRDL

CIVIL:CIVIL: BHEL,BHEL, L&T, Gammon India, REL, PCTL, NTPC, L&T, Gammon India, REL, PCTL, NTPC, DVC, IJT, Alstom India, Lodha Bellissimo, etc.DVC, IJT, Alstom India, Lodha Bellissimo, etc.

Wind Energy:Wind Energy: SuzlonSuzlon

Automobile:Automobile: Tata Motors, M&MTata Motors, M&M

Railways:Railways: RDSO, Contransys Pvt LtdRDSO, Contransys Pvt Ltd

NWTF (IITK)

Space Recovery Capsule

Space Applications

NWTF (IITK)

Reusable Launch Vehicle

RLV-TVT

RLV-SVT

VSSC

NWTF (IITK)

Space Vehicles with Launch Tower

NWTF (IITK)

Aerodynamic buffeting study

Control surface effectiveness study

Aeronautical Applications

NWTF (IITK)

Air-intake Mass Flow Simulation

NWTF (IITK)

Study on Aerofoil

GAW-Aerofoil LS-E2-Aerofoil

NWTF (IITK)

Aerodynamic Study on Missile Models

NWTF (IITK)

Decelerator AerodynamicsDecelerator Aerodynamics

NWTF (IITK)

Study on Ram-air Parachutes

NWTF (IITK)

Ram-air parachute test rig

Double Stacked Wagon

Config 1

Config 2

Config 3

NWTF (IITK)

Study on Thermal Power StationsAero-elastic Chimney and Cooling Tower

NWTF (IITK)

Civil Engineering Applications

NWTF (IITK)

Major Ongoing R&D ProjectsMajor Ongoing R&D Projects

(1) Aeronautical(1) Aeronautical Experimental study on Single and multi-element airfoils for RTA Experimental study of low Reynolds number airfoil for MAV Aerodynamic characteristics of RLV Ascent 1:50 lift off, 1:13 scale Ascent

and Descent, RLV 1:8 and 1:6.25 FADS Ground wind studies on GSLV-M3, PSLV Wind tunnel studies on DRDL MK-3 missiles

(2) Non-Aeronautical(2) Non-Aeronautical Aero-elastic model study of NDCT Wind tunnel study on rigid model of 81 storey residential tower Wind tunnel testing on rigid model of I.G. Stadium sports complex Aero-elastic model study of 275 m tall RCC Triple flue Chimney

NWTF (IITK)

Tunnel Utilization

Year Wind OFF

Hours

Wind On

Hours

Total Hours

Tunnel effort (Rs. In Lakh)

Total project amount

(Rs in Lakhs) Paid Notional

2006 580 190 770 80 38 130

2007 520 230 750 90 30 150

2008 540 298 838 155 20 220

NWTF (IITK)

NWTF (IITK)

Tunnel Utilization (in terms of income)

Tunnel Utilization (in tems of income)

0

50

100

150

200

250

Year

Inco

me

(Lak

hs)

Notional income

Actual income

Total project value

Notional income 38 30 20

Actual income 80 90 155

Total project value 130 150 220

2006 2007 2008

NWTF (IITK)

NWTF (IITK)

Tunnel Utilization (in terms of occupancy)

Tunnel Utilization (in terms of hours)

0

200

400

600

800

1000

Year

Uti

liza

tio

n (

Hrs

)

Wind ON

Wind OFF

Total

Wind ON 190 230 298

Wind OFF 580 520 540

Total 770 750 838

2006 2007 2008

NWTF (IITK)

NWTF (IITK)

Normalized Tunnel Utilization

Utilization efficieny

0

10

20

30

40

50

60

70

80

2006 2007 2008

Year

% U

tili

zati

on

% of Wind ON

% of Wind OFF

%of Tunnel occupancy

NWTF (IITK)

NWTF (IITK)

Occupancy forecast for next 3 years

Serial #

Organizations

Wind OFFOccupancy

(hrs)

Wind ON occupancy

(hrs)

Total Occupancy

(hrs)

1 VSSC 500 300 800

2 DRDO 650 350 1000

3 CSIR 325 175 500

4 Civil 550 300 850

5 Others 250 150 400

Total 2275 1275 3550

Projected occupancy = 80% per year for paid projects.Projected income = Rs 236 lakhs/year (at the rate of Rs 20, 000/hr)

Remaining 20% can be utilized for in-house R&D, students’ research, and HRD activities.

NWTF (IITK)

Strengthening NWTF team

Manpower Current strength

Requirement for full fledge operation (60% & above

occupancy)

Research Engineers

3 4 + 2

Technical Assistant

1 3 + 1

Mechanics 2 + 8 4 + 8

Office staff 2 3

Project Ass 2 4

The following manpower distribution is required for effective tunnel operation

NWTF (IITK)

Proposed HRD Programs

Existing:

HRD programs in wind tunnel testing techniques

through short courses, symposium, and workshop

– mainly for professionals

Proposed:

HRD programs in experimental techniques using

wind tunnel covering model design, instrumentation,

measurement techniques, data acquisition & analysis,

report writing, and validation of CFD tools

- For UG & PG engineering students across

the country

NWTF (IITK)

Proposed Academic Programs

Major: MS by Research

Minor: Experimental fluid mechanics

Additional Facilities proposed

Aerodynamic research facilities • Low speed wind tunnels for academic research

• Annular cascade tunnel

• Supersonic and hypersonic facilities

• High speed jet, shock tube

Open circuit wind tunnel for civil applications

Computational facilities

Design, manufacturing & inspection facilities

NWTF (IITK)

Various Thrust Areas of Research

Fluid Structure Interaction

Low Reynolds Number Aerodynamics

Unsteady Aerodynamics

High Speed Aerodynamics

Wind Energy

Active and passive flow controls

NWTF (IITK)

Concluding Remarks

NWTF is committed to take up sponsored and consultancy NWTF is committed to take up sponsored and consultancy projects of national importance as well as supporting projects of national importance as well as supporting academic research.academic research.

NWTF Proposes following academic programs Minor: Experimental fluid mechanics

Major: MS by research

NWTF proposes to add various research facilities in the areas of low & high speed experimental aerodynamics

NWTF (IITK)

We Look Forward to Your We Look Forward to Your Continued SupportContinued Support

Thank you