Department of Mechanical Engineering

 

 


Senior Lecturer

      PHD/ME SCHOLARSHIPS:

o   INTERNATIONAL

o   DOMESTIC

 

      RESEARCH STUDENTS

 

      BE YEAR 4 PROJECTS

 

      RESEARCH OPPORTUNITIES

 

      RESEARCH OVERVIEW

 

      FACILITIES / TOOLS

 

      GRANTS

 

      CONSULTING

 

      COLLABORATION

 

      PUBLICATIONS

 

      OTHER ACTIVITIES

 

      IN THE NEWS

 

 

FISCHER (PhD)

 

 

GUHA (PhD)

 

 

 

SHIM (PhD)

 

 

 

IMRAAN (PhD)

 

 

 

MILNE (PhD)

 

 

 

TURKELI-RAMADAN (PhD)

 

 

 

SWERY (PhD)

 

 

 

 

Dr Rajnish N Sharma

PhD Auck, BE(1st Class Hons) Auck

MAIAA, MASHRAE, MASME, MAWES

 

 

CONTACT

      PHONE:         (+64 9) 923 8144 [DIRECT]       Ext 88144 [INTERNAL]

      FAX:               (+64 9) 373 7479

      EMAIL:           r.sharma@auckland.ac.nz

      OFFICE:         Faculty of Engineering Building, Room 1.1005

      POSTAL:       Mechanical Engineering Department, The University of Auckland,

                                Private Bag 92019, Auckland, New Zealand

      COURIER:     Level 9, 20 Symonds St, Auckland, NEW ZEALAND

 

ROLE/TEACHING/OTHER

      AREAS, THERMOFLUIDS TEACHING GROUP:

Fundamental and Applied Fluid Mechanics, Aerodynamics, Heat Transfer, Mass Transfer,

Thermodynamics, Energy, Introduction To & Applications of CFD.

 

      TEACHING:

o    MechEng 211 Thermofluids (Course Organiser)

o    MechEng 311 Thermal Engineering

o    MechEng 712 AeroHydroDynamics (Course Organiser)

o    MechEng 713 Energy Technology

o    MechEng 715 Building Services (Course Organiser)

o    MechEng 731 Engineering design 4M

o    MechEng 762 / 763 Final Year Project in Mechanical and Mechatronics (Project Coordinator)

2012 Project Presentation (29Sep12)          2012 Project Displays (5Oct12)          Projects 2013 Information

 

      COMMITTEE / SERVICE:

o    Member, University of Auckland Pacific Reference Group (PRG)

o    Member, Faculty Equity Committee

 

RESEARCH OVERVIEW

      GENERAL AREAS OF INTEREST:

Fundamental and Applied Fluid Mechanics, Aerodynamics, Heat Transfer, Mass Transfer,

Thermodynamics, Energy, Introduction To & Applications of CFD.

 

      SPECIFIC AREAS:

o    Turbulent Flows / Fluid Dynamics (Jet turbulence, impingement, synthetic jets, applications)

o    Aerodynamics / Industrial Fluid Mechanics / Vehicle aerodynamics.

o    Computational fluid dynamics (modelling of flows and flow visualisation).

o    Renewable Energy (Tidal Energy, Wind Energy, Energy conversion & conservation).

o    Natural ventilation flows

o    Refrigeration & air conditioning

o    Industrial and process fluid mechanics, heat and mass transfer

o    Wind engineering (wind turbulence, low-rise buildings, bluff-body aerodynamics, cavity resonance).

o    Nanodroplets

 

      RESEARCH GROUP MEMBERSHIP:

o    Yacht and Wind Engineering Research Group,

o    Computational Fluid Dynamics (CFD) Research Cluster, and

o    Energy and Fuels Research Group.

 

      LABORATORY AFFILIATION:

o    Aerodynamics – Wind Tunnel Laboratories,

o    The CFD – Modelling and Visualisation Lab, and

o    Thermodynamics Laboratory.

 

 

RESEARCH ACTIVITIES AND FUNDING

 

PROJECT

FUNDING

FROM

Nanodroplets

 

SCION

Fundamentals and Applications of Synthetic Jets

$83,000

UARC + VCUDF

Jet turbulence, Impingement, Fluid Dynamics, Heat Transfer

$19,000pa x 1.5y

GFSS

Ultra Micro Gas Turbine HEX Combustor

$84,000

NZG IDS

Resin Flow Modelling In Complex Fibre Preforms

$75,000

UOA-DS

Smart Wind Turbines (jointly with Dr U Madawala)

$30,000

$75,000

UARC

UOA-DS

Tidal Turbines, influence of tidal flow unsteadiness

$84,000

FRST TADS

Wind Engineering (Aerodynamics of bluff-body cavities with an opening, Dynamics of Internal Pressure in Buildings, Turbulent Flows around Bluff-Bodies, Buildings, Wind loads on Low-Rise buildings, Wind characteristics)

$105,000

NZG + USP

Natural Ventilation for Healthy Homes

 

 

Aerodynamics of Road Vehicles

 

 

Industrial Thermo-Fluid Mechanics (Venturi Mixers, Pressure Swirl Nozzles, etc)

 

SCION, FELTONMIX

 

SOME RESEARCH FACILITIES / TOOLS

      PIV systems:

o    2D system

o    3D stereoscopic system

      Wind tunnels and flumes:

o    High-Speed (<50m/s) with force balances, 700 mm x 700 mm section, for aerodynamics studies

o    Boundary Layer Low Speed (<13m/s) with traversing rig and turntable, 1.8 m x 1.2 m section

o    Twisted Flow, 7m x 3.5m adjustable to 3.5m x 3.5m, for yacht, sails, vehicle and general aerodynamic studies at alarge scale

o    Small Wind Tunnel (<15m/s) for aerodynamics studies

o    Access to wave and conventional flumes in the Fluids Laboratory, CEE

      Probes:

o    Cobra probes

o    HWA

      CFD Tools and Resources:

o    Access to 15 node, 96 node, and 900+ node clusters including BestGrid

o    ANSYS CFX and FLUENT, Other

      Rigs for fundamental and applied research:

o    Continuous jet rigs, for air and water studies

o    Synthetic jet rigs

o    Flat flame combustor

o    Refrigerators

o    Wind turbine, instrumented, telescopic and conventional blades

o    Tidal turbine, model scale, instrumented blades

o    Other

 

CONSULTING ACTIVITIES

I provide consulting and advise to various sections of the community (individuals, industry, other research organisations,

businesses, developers, and government departments) on matters such as wind opinions, modelling thermal and fluid flow

problems, device testing, quality assurance of testing procedures, system and component design, and research and development.

Some examples include:

      Dolphin Aqualisers Ltd, Wave Device Research and Development, Wave tank testing, Analytical modelling

      Fisher & Paykel Healthcare Ltd, Quality Assurance of Respirator Testing

      FeltonMix Ltd, CFD and Analytical Modelling / Development of Venturi Shower Mixers

      Property Developers (e.g. PlatyPus Group), Wind Opinion

      Fiji Government, Assessment of Provisions of the Fiji Building Code

 

 

COLLABORATION

      NANODROPLETS, SWIRL NOZZLE FLOW MODELLING:

Dr Namasivayam.Navaranjan, Scientist, ENSIS CSIRO-SCION, Rotorua, New Zealand

      TURBULENCE:

Professor Andrew Pollard,  Queen's Research Chair in Fluid Dynamics and Multi-scale Phenomena, Queens University,  Kingston, Ontario, Canada

      WIND ENGINEERING / BUILDING INTERNAL PRESSURE DYNAMICS:

Associate Professor John Ginger,  James Cook University, Townsville, Australia

Associate Professor Peter Richards, Associate Professor, Mechanical Engineering Department, The University of Auckland, Auckland, New Zealand

Dr John Holmes, Director JDH Consulting and Editor – Wind and Structures – An International Journal

Dr Arindam Chowdhary, Director,  Laboratory for Wind Engineering Research (LWER), International Hurricane Research Center, Florida International University

Dr Girma Bitsuamlak,  Laboratory for Wind Engineering Research (LWER), International Hurricane Research Center, Florida International University

      SYNTHETIC JETS:

Professor Shinji Honami, Professor in Mechanical Engineering and Dean of Faculty of Engineering, Tokyo University of Science, Tokyo, Japan

      SMART WIND TURBINES:

Associate Professor Udaya Madawala, Senior Lecturer, Electrical and Computer Engineering Department, The University of Auckland, Auckland, New Zealand

      WIND TURBINE BLADE MATERIALS:

Professor Debes Bhattacharyya, Director, Centre for Advanced Composite Materials (CACM), The University of Auckland

      RESIN FLOW MODELLING IN COMPLEX FIBRE PREFORMS:

Associate Professor Simon Bickerton, Centre for Advanced Composite Materials (CACM), The University of Auckland

Dr Piaras Kelly, Department of Engineering Science and CACM, The University of Auckland

      UNSTEADY HYDRODYNAMICS AND FATIGUE OF TIDAL TURBINE BLADES:

Associate Professor Simon Bickerton, Centre for Advanced Composite Materials (CACM), The University of Auckland

Professor Richard Flay, Director, Yacht and Wind Research Unit (YWRU), The University of Auckland

      COMBUSTION:

Associate Professor Robert Raine, Director, Energy and Fuels Research Unit (EFRU, The University of Auckland

 

CURRENT RESEARCH STUDENTS

 

PhD CANDIDATE  

THESIS TITLE / AREA

COLLABORATION

COMMENCED

SUBMITTED

PASSED

Tushar Guha

BE 1st Class (Jadavpur),

MTech 1st Class (IIT Guwahati)

INTERNAL PRESSURE IN LOW AND MEDIUM RISE BUILDINGS UNDER HIGH WINDS

A.Prof Peter Richards

YWRU

01 Jan 2008

23 Dec 2011

 

Young-min Shim

BS Mech (KAIST)

MS Mech (KAIST)

TURBULENT STRUCTURES IN SLOT JET IMPINGING ON A CIRCULAR CYLINDER

A.Prof Peter Richards

YWRU

01 Feb 2008

 

 

Mustahib Imraan

BTech Gold Medal (USP)

ME 1st Class Hons (Auck)

INCREASING THE ENERGY YIELD OF WIND TURBINES USING TELESCOPIC BLADES

Prof Richard Flay

YWRU

01 Mar 2008

 

 

Ian Milne

BE 1st Class Hons (Auck)

 

UNSTEADY TIDAL TURBINE BLADE LOADS

A.Prof Simon Bickerton

CACM

01 Mar 2009

 

 

Christoph Fischer

BSc (UAS Berlin)

MSc (UAS Berlin)

INFLUENCE OF SLOT ASPECT RATIO ON CHARACTERISTICS OF RECTANGULAR SYNTHETIC JETS

Prof Gordon Mallinson

CFDV

01 Mar 2009

 

 

Zerrin Turkeli

BSc Hons (METU Turkey)

MSc Hons (Tokyo)

THE EFFECTS OF PREHEATING ON THE COMBUSTION CHARACTERISTICS OF A FLAT FLAME MICRO COMBUSTOR

A.Prof Robert Raine

EFRU

01 Jan 2011

 

 

Elinor Swery

BE 1st Class Hons (Auck)

 

 

NUMERICAL PREDICTION OF COMPLEX FIBRE PREFORMS, FOR ENHANCED PROCESS MODELLING OF ADVANCED COMPOSITE STRUCTURES

A.Prof Simon Bickerton,

Dr Piaras Kelly

CACM

01 Mar 2012

 

 

Ahmad H A Hamid

BE Hons (UTM)

MSc (UTM)

SYNTHETIC JETS FOR FLOW CONTROL

A.Prof Peter Richards

YWRU

01 Xxx 2012

 

 

 

 

ME CANDIDATE    

THESIS TITLE / AREA

COLLABORATION

COMMENCED

SUBMITTED

PASSED

Danyan Huo

BE (Beijing UCEA)

NANODROPLETS

Dr Navayashivam

SCION

01 Mar 2012

 

 

Itwinder Singh

BTech (Jamia Milia Delhi),

PGDip (Massey)

THERMOACOUSTIC REFRIGERATION

 

01 Mar 2012

 

 

Ankush Bhangoo

BS Mech (Guru Jambd,

Hisar, India)

CAVITY PRESSURE DYNAMICS

 

01 Mar 2012

 

 

Nikhil Garg

BE (Haryana)

 

SLOT SYNTHETIC JET IMPINGEMENT HEAT TRANSFER FROM CIRCULAR CYLINDER

 

01 Jul 2010

June 2011

August 2011

Ankit Trivedi

BE (Bhopal)

RECYCLABLE WIND TURBINE BLADES

Prof D. Bhattacharyya

CACM

01 Jul 2008

June 2009

2nd Class Hons

Avilash Singh

BE 1st Class H

ons (Auck)

REDESIGN OF TEMPERATURE TEST CHAMBER AT RAKON

Prof Shane Xie

MECHATRONICS

01 Mar 2008

[ Part – time ]

Dec 2009

1st Class Hons

Mustahib Imraan

BTech Gold Medal (USP)

SLOT JET IMPINGEMENT HEAT TRANSFER FROM A CIRCULAR CYLINDER LOCATED BETWEEN CONFINING WALLS

 

01 Mar 2005

June 2006

1st Class Hons

Siong K Soon

BSc (Salford)

 

AERODYNAMICS OF A CIRCULAR CYLINDER IN THE FLOW FIELD OF A SYNTHETIC JET

 

01 Mar 2005

June 2006

1st Class Hons

Sharda S P Rattan

BSc (USP)

 

ANALYSIS OF TURBULENT WIND RECORDS DURING TROPICAL CYCLONE EVENTS IN FIJI

 

 

 

Yes

 

 

SELECTED RECENT PUBLICATIONS

      Sharma, R. N., & Madawala, U. K. (2011). The concept of a smart wind turbine system. Renewable Energy, 39(1), 403-410. doi:10.1016/j.renene.2011.08.051

      Guha, T. K., Sharma, R. N., & Richards, P. J. (2011). Internal pressure dynamics of a leaky building with a dominant opening. Journal of Wind Engineering and Industrial Aerodynamics, 99(11), 1151-1161.

      Milne, I.A., Sharma R. N., Flay RG, , & Bickerton, S. (2011). Characteristics of the Onset Flow Turbulence at a Tidal-Stream Power Site. In Proceedings of the / Presented at 9th European Wave and Tidal Energy Conference, Southampton, U.K..

      Shim, Y.M., Sharma, R.N., & Richards, P.J. (2011). PIV investigation of the flow structures in the near-exit region issuing from a slot jet. In Proceedings of the / Presented at 9th International Symposium on Particle Image Velocimetry, Tsukuba, Japan.

      Turkeli-Ramadan, Z., Sharma, R.N., & Yamaguchi, K. (2011). Combustion characteristics of HEX-Combustor for Ultra Micro Gas Turbine. In Proceedings of the / Presented at European Combustion Meeting 2011, Cardiff, UK.

      Imraan, M., Sharma, R.N., & Flay, R.G.J.F. (2011). Wind Tunnel Testing of a Telescopic Blades Wind Turbine. In Proceedings of the / Presented at ASME Power 2011, Denver, Colorado, USA.

      Imraan, M.5, Sharma, R. N. (2010) ‘Jet Impingement Heat Transfer from a Circular Cylinder Located Between Confining Walls’, Journal of Thermophysics and Heat Transfer, 24(4), 756 - 764

      Fischer, C.5, Sharma, R. N., Mallinson, G.D. (2010). Flow visualisation to identify mechanisms leading to axis-switching of slotted synthetic jets, 17AFMC – 17th Australasian Fluid Mechanics Conference, Auckland, New Zealand, Dec 5-9.

      Khan, S., Melville, B., Aaad, Y. S., Sharma, R. N. and Nokes, R. (2009) ‘Effect of Vertical Locations of Inlet and Outlet on Hydraulics of Stormwater Retention Ponds using Numerical Modeling, in Proceedings of the 33rd International Association of Hydraulic Engineering & Research (IAHR) Biennial Congress, 9-14 August 2009, Vancouver BC, Canada

      Sharma, R. N. (2008) ‘Internal and Net Envelope Pressures in a Building having Quasi-static Flexibility and a Dominant Opening’, Journal of Wind Engineering and Industrial Aerodynamics, Volume 96, Issues 6-7, June-July 2008, Pages 1074-1083

      Sharma, R. N., Chadwick, D., Haines, J. (2008) ‘Aerodynamics of an intercity bus’, Wind and Structures, Vol. 11, No. 4 (2008).

      I. S. D`eme, N. Navaranjan, R. N. Sharma, (2008) ‘A Cfd Model For Atomization Of Wood Fibre Suspension Under High Pressure’ in: 21st Annual ILASS-Americas Conference, Institute for Liquid Atomization and Spray Systems, Orlando, Florida, May 18–21, 2008

      Sharma, R. N. (2007) ‘Fluid Dynamics Based Analytical Model for Synthetic Jet Actuation’, AIAA Journal, 45(8), 1841-1847 (View Here)

      Sharma, R. N. Maxwell, S., and Tang, X. (2007) ‘Heat Transfer from a Circular Cylinder with Synthetic Jet Impingement’, Paper Number AIAA-2007-3901, Proc of the 39th AIAA Thermophysics Conference, 25-28 June 2007, Miami, USA

      Sharma, R. N., Curtis, S., Naidu, S.R., Morrison, J.R.J., Singh, G. ‘Pressure pulsations inside road vehicles with open windows’, The 5th International Colloquium on Bluff-body aerodynamics & Applications, Ottawa University, Canada, July 2004

      Sharma, R. N. and Richards, P. J. (2003) ‘The Influence of Helmholtz resonance on internal pressures in a low-rise building’, Journal of Wind Engineering and Industrial Aerodynamics, 91, 807-828

 

OTHER INTERESTS AND ACTIVITIES

      Mentoring: Students from Pacific Islands and Asia (Voluntary)

      Community Service: Hindi Language Classes, Conduct Prayers, Marriage Celebrant

      Hobbies: Walking, Jogging, Table Tennis, Chess