Dr Zaman Kamruzzaman

Dr Zaman Kamruzzaman

Casual Research Assistant

School of Engineering

Career Summary

Biography

Md Kamruzzaman (Zaman)  is working currently as a  Research Assistant at the School of Engineering, Faculty of Engineering and Built Environment. He completed his PhD studies in Mechanical Engineering in 2016 under the supervision of Professor Lyazid Djenidi and Em. Professor R. A. Antonia, at the University of Newcastle.

Mr Zaman completed his B.Sc. degree in Mathematics in 2009 with a high distinction in Khulna University, Bangladesh. Later he studied M.Sc in Applied Mathematics and completed in 2012 at the same university where he started his research. He involved into fluid mechanics research in Mathematics discipline Khulna university during his Master's degree, at this time he also concentrated on mainly fundamental fluid mechanics, computing for the simulation ,magneto-hydrodynamics(MHD), rotating fluid flow, duct flow etc... Before completing his Master's Degree he got an PhD offer from University of Newcastle, Australia in 2011 then he moved Newcastle in 2012 as a PhD student after completing MSc.

Recently he completed a PhD in Mechanical Engineering and his PhD dissertation title is, "On the effects of non-homogeneity on small scale turbulence". He is working now on the classical grid turbulence, turbulent boundary layer ( smooth and Rough), turbulent shear mixing layer and turbulent shearless mixing layer (Nobel work).


Qualifications

  • Doctor of Philosophy, University of Newcastle
  • Bachelor of Science, Khulna University - Bangladesh
  • Master of Mathematics, Khulna University - Bangladesh

Keywords

  • Fluid Mechanics
  • Jet turbulence
  • Magnetohydrodynamics
  • Numerical Analysis
  • Turbulent Boundary Layer
  • Turbulent Flow Control
  • Turbulent Shear and Shearless Mixing Layer

Languages

  • Bengali (Mother)
  • English (Fluent)

Fields of Research

Code Description Percentage
091508 Turbulent Flows 40
010207 Theoretical and Applied Mechanics 30
010301 Numerical Analysis 30

Professional Experience

UON Appointment

Title Organisation / Department
Casual Academic University of Newcastle
School of Engineering
Australia

Professional appointment

Dates Title Organisation / Department
2/05/2016 - 17/05/2018 Resarch Assistant

Research Assistant:  Pursued fundamental research to study the small-scale turbulence in grid generated turbulence using classical and composite grids (shear and shearless mixing layers) and 2D rough wall boundary layer under the supervision of Prof. Lyazid Djenidi and Emeritus Prof. R.A.Antonia. For the first time, shearless and shear mixing layer turbulent flows are being investigated by using a tailor made the composite grid as a part of my current research.
Key responsibilities:
Wind tunnel design and modification.
Wind tunnel testing.
Hot-wire probe build.
Measurements.
Data collection and analysis.
Computer coding.
Formulating new ideas and solving Mathematical problems.
Numerical analysis.
Preparing oral presentation for the international conferences.
Publishing journal papers.

Faculty of Engineering and Built Environment - The University of Newcastle (Australia)
Mechanical Engineering
Australia

Teaching

Code Course Role Duration
MECH-2700 Thermo and Fluid Dynamics
Faculty of Engineering and Built Environment - The University of Newcastle (Australia)
Tutoring to the undergraduate students
Casual academic faculty 24/07/2017 - 24/12/2017
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Publications

For publications that are currently unpublished or in-press, details are shown in italics.


Journal article (9 outputs)

Year Citation Altmetrics Link
2017 Djenidi L, Lefeuvre N, Kamruzzaman M, Antonia RA, 'On the normalized dissipation parameter C-epsilon in decaying turbulence', JOURNAL OF FLUID MECHANICS, 817 61-79 (2017) [C1]
DOI 10.1017/jfm.2017.110
Co-authors Lyazid Djenidi, Robert Antonia
2016 Talluru KM, Djenidi L, Kamruzzaman M, Antonia RA, 'Self-preservation in a zero pressure gradient rough-wall turbulent boundary layer', JOURNAL OF FLUID MECHANICS, 788 57-69 (2016) [C1]
DOI 10.1017/jfm.2015.665
Citations Scopus - 2Web of Science - 2
Co-authors Robert Antonia, Lyazid Djenidi
2015 Kamruzzaman M, Djenidi L, Antonia RA, Talluru KM, 'Scale-by-scale energy budget in a turbulent boundary layer over a rough wall', International Journal of Heat and Fluid Flow, (2015) [C1]

Hot-wire velocity measurements are carried out in a turbulent boundary layer over a rough wall consisting of transverse circular rods, with a ratio of 8 between the spacing (w) of... [more]

Hot-wire velocity measurements are carried out in a turbulent boundary layer over a rough wall consisting of transverse circular rods, with a ratio of 8 between the spacing (w) of two consecutive rods and the rod height (k). The pressure distribution around the roughness element is used to accurately measure the mean friction velocity (Ut) and the error in the origin. It is found that Ut remained practically constant in the streamwise direction suggesting that the boundary layer over this surface is evolving in a self-similar manner. This is further corroborated by the similarity observed at all scales of motion, in the region 0.2=y/d=0.6, as reflected in the constancy of Reynolds number (R¿) based on Taylor's microscale and the collapse of Kolmogorov normalized velocity spectra at all wavenumbers.A scale-by-scale budget for the second-order structure function <(du)2> (du=u(x+r)-u(x), where u is the fluctuating streamwise velocity component and r is the longitudinal separation) is carried out to investigate the energy distribution amongst different scales in the boundary layer. It is found that while the small scales are controlled by the viscosity, intermediate scales over which the transfer of energy (or <(du)3>) is important are affected by mechanisms induced by the large-scale inhomogeneities in the flow, such as production, advection and turbulent diffusion. For example, there are non-negligible contributions from the large-scale inhomogeneity to the budget at scales of the order of ¿, the Taylor microscale, in the region of the boundary layer extending from y/d=0.2 to 0.6 (d is the boundary layer thickness).

DOI 10.1016/j.ijheatfluidflow.2015.04.004
Co-authors Robert Antonia, Lyazid Djenidi
2015 Djenidi L, Kamruzzaman M, Antonia RA, 'Power-law exponent in the transition period of decay in grid turbulence', JOURNAL OF FLUID MECHANICS, 779 (2015) [C1]
DOI 10.1017/jfm.2015.428
Citations Scopus - 7Web of Science - 6
Co-authors Robert Antonia, Lyazid Djenidi
2015 Kamruzzaman M, Djenidi L, Antonia RA, Talluru KM, 'Drag of a turbulent boundary layer with transverse 2D circular rods on the wall', EXPERIMENTS IN FLUIDS, 56 (2015) [C1]
DOI 10.1007/s00348-015-1995-6
Citations Scopus - 2Web of Science - 2
Co-authors Lyazid Djenidi, Robert Antonia
2014 Wahiduzzaman M, Kamruzzaman M, Alam MM, Ferdows M, 'Magnetic field effect on fluid flow through a rotating rectangular straight duct with large aspect ratio', PROGRESS IN COMPUTATIONAL FLUID DYNAMICS, 14 398-405 (2014)
Citations Scopus - 1Web of Science - 1
2013 Kamruzzaman M, Wahiduzzaman M, Alam MM, Djenidi L, 'The effects of magnetic field on the fluid flow through a rotating straight duct with large aspect ratio', Procedia Engineering, 56 239-244 (2013) [C1]

This paper presents a numerical study of an investigation of a fluid flow through a rotating rectangular straight duct in the presence of magnetic field. The straight duct of rect... [more]

This paper presents a numerical study of an investigation of a fluid flow through a rotating rectangular straight duct in the presence of magnetic field. The straight duct of rectangular cross-section rotates at a constant angular velocity about the centre of the duct cross-section is same as the axis of the magnetic field along the positive direction in the stream wise direction of the flows. Numerical calculation is based on the Magneto hydrodynamics incompressible viscous steady fluid model whereas Spectral method is applied as a main tool. Flow depends on the Magnetic parameter, Dean number and Taylor number. One of the interesting phenomena of the fluid flow is the solution curve and the flow structures in case of rotation of the duct axis. The calculation are carried out for 5 = M g = 50000, 50 = T r 100000, D n 500, 1000, 1500 and 2000 where the aspect ratio ¿ 3.0. The maximum axial flow will be shifted to the centre from the wall and turn into the ring shape under the effects of high magnetic parameter and large Taylor number whereas the fluid particles strength is weak. © 2013 The Authors. Published by Elsevier Ltd.

DOI 10.1016/j.proeng.2013.03.113
Co-authors Lyazid Djenidi
2013 Wahiduzzaman M, Kamruzzaman M, Alam MM, Ferdows M, 'Magnetic effect on direct numerical simulations of fluid flow through a rotating rectangular straight duct', INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS, 42 327-342 (2013)
DOI 10.3233/JAE-131666
Citations Scopus - 2Web of Science - 2
2013 Md Kamruzzaman, Kamruzzaman M, 'Behaviours of energy spectrum at low Reynolds number in grid turbulence', International Journal of Mechanical, Industrial Science and Engineering, 7 (2013)
Show 6 more journal articles

Conference (8 outputs)

Year Citation Altmetrics Link
2016 Kamruzzaman M, Djenidi L, Antonia RA, 'Turbulent Sheared Mixing Layer Generated with a Composite Grid', FLUID-STRUCTURE-SOUND INTERACTIONS AND CONTROL (2016) [E1]
DOI 10.1007/978-3-662-48868-3_45
Co-authors Lyazid Djenidi, Robert Antonia
2016 Djenidi L, Kamruzzaman M, Antonia RA, 'Energy Dissipation rate parameter in a rough wall turbulent boundary layer' (2016)
Co-authors Lyazid Djenidi, Robert Antonia
2015 Talluru KM, Kamruzzaman M, Djenidi L, Antonia RA, 'Self-preservation in zero pressure gradient turbulent boundary layer' (2015)
Co-authors Lyazid Djenidi, Robert Antonia
2015 Talluru KM, Kamruzzaman M, Djenidi L, Antonia RA, 'Amplitude modification of small-scales in a rough wall turbulent boundary wall' (2015)
Co-authors Lyazid Djenidi, Robert Antonia
2015 Kamruzzaman M, 'Shearless mixing layer in grid generated turbulence at moderate Reynolds number' (2015)
2014 Kamruzzaman M, Djenidi L, Antonia RA, 'Effects of low Reynolds number on decay exponent in grid turbulence', Procedia Engineering (2014) [E1]

© 2014 The Authors. Published by Elsevier Ltd. This present work is to investigate on the decay exponent (n) of decay power law (q&apos; 2 ~(t - To)n , q&apos; 2 is the total tur... [more]

© 2014 The Authors. Published by Elsevier Ltd. This present work is to investigate on the decay exponent (n) of decay power law (q' 2 ~(t - To)n , q' 2 is the total turbulent kinetic energy, t is the decay time, t0 is the virtual origin) at low Reynolds numbers based on Taylor microscale R¿(= u '¿/ v) = 64 . Hot wire measurements are carried out in a grid turbulence subjected to a 1.36:1 contraction. The grid consists in large square holes (mesh size 43.75 mm and solidity 43%); small square holes (mesh size 14.15mm and solidity 43%) and woven mesh grid (mesh size 5mm and solidity 36%). The decay exponent (n) is determined using three different methods: (i) decay of q' 2 , (ii) transport equation for s , the mean dissipation of the turbulent kinetic energy and (iii) ¿ method (Taylor microscale ¿ = v5( q 2 )/ (ed)} , angular bracket denotes the ensemble). Preliminary results indicate that the magnitude n increases while R¿ (= u'¿/v)decreases, in accordance with the turbulence theory.

DOI 10.1016/j.proeng.2014.11.857
Citations Scopus - 1Web of Science - 1
Co-authors Robert Antonia, Lyazid Djenidi
2014 Kamruzzaman M, Talluru KM, Djenidi L, Antonia RA, 'An experimental study of turbulent boundary layer over 2D transverse circular bars', Proceedings of the 19th Australasian Fluid Mechanics Conference, AFMC 2014 (2014)

In this paper, we present the results from a turbulent boundary layer developing over a rough surface. The surface consists of transverse cylindrical rods (k, the rod diameter) th... [more]

In this paper, we present the results from a turbulent boundary layer developing over a rough surface. The surface consists of transverse cylindrical rods (k, the rod diameter) that are periodically arranged in the streamwise direction with a spacing of ¿/k = 8 (¿ is the distance between two adjacent roughness elements), that results in maximum form drag. Particular attention is paid to the measurement of the friction velocity (U t ) that plays a major role in the assessment of the roughness effects on the flow. Hot-wire anemometry is used to measure the mean and fluctuating velocity components and pressure tap measurements are carried out to obtain the drag. Two methods are used to determine U t . One is based on the momentum integral equation. The second relies on measuring the pressure distribution around one roughness element. Results show that both methods give consistent values for U t to within 3%. Further, the drag coefficient (C D ) is observed to be independent of the Reynolds number.

Citations Scopus - 1
Co-authors Robert Antonia, Lyazid Djenidi
2011 Kamruzzaman M, Mahmud Alam M, 'Magnetic effect on direct numerical simulations of fluid flow through a rotating rectangular straight duct' (2011)
Show 5 more conferences
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Grants and Funding

Summary

Number of grants 1
Total funding $20,000

Click on a grant title below to expand the full details for that specific grant.


20171 grants / $20,000

Effects of wall suction rate over a 2D transverse rod in the rough wall turbulent boundary layer.$20,000

This project aims at investigating the response of a rough wall turbulent boundary layer subjected to a wall suction. Measurements will be carried out using hot-wire anemometry in two of our wind tunnels and the roughness will consist in 2D transverse rods mounted on the floor of the wind tunnels. Suction will be applied through a porous strip. The study is intended to generate new knowledge in the area of turbulent boundary layers, required for developing effective flow control strategies to achieve outcomes such as drag reduction and mixing enhancement.

Funding body: Faculty of Engineering and Built Environment - The University of Newcastle (Australia)

Funding body Faculty of Engineering and Built Environment - The University of Newcastle (Australia)
Project Team

Md Kamruzzaman; Prof. Lyazid Djenidi

Scheme FEBE Strategic Pilot Grant
Role Lead
Funding Start 2017
Funding Finish 2017
GNo
Type Of Funding Internal
Category INTE
UON N
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Research Supervision

Number of supervisions

Completed1
Current0

Past Supervision

Year Level of Study Research Title Program Supervisor Type
2017 Honours The effects of wall suction on the turbulent boundary layer Mechanical Engineering, Faculty of Engineering and Built Environment - The University of Newcastle (Australia) Co-Supervisor
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Dr Zaman Kamruzzaman

Positions

Casual Research Assistant
Turbulence Research Group
School of Engineering
Faculty of Engineering and Built Environment

Casual Academic
Turbulence Research Group
School of Engineering
Faculty of Engineering and Built Environment

Contact Details

Email md.kamruzzaman@newcastle.edu.au
Phone (02) 49854938
Mobile +610469705861

Office

Room TA-204
Building TA Building
Location Callaghan
University Drive
Callaghan, NSW 2308
Australia
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