Dr Raju Chowdhury

Dr Raju Chowdhury

Research Associate

School of Engineering

Career Summary

Biography

Dr. Raju Chowdhury has developed significant expertise in multiphase flow, heat transfer, and phase change phenomena, particularly within the context of Sustainable Steelmaking Research over the past six years. He is currently serving as a Postdoctoral Researcher at the BHP Centre for Sustainable Steelmaking Research (SSR) at the University of Newcastle, Australia.

Dr. Chowdhury completed his PhD in Chemical Engineering at the University of Newcastle in 2023. He joined the Steel Research Hub as a PhD candidate under the Sustainable Steel Manufacturing research program. His research focused on addressing a complex industrial problem faced by the industry partner BlueScope Steel with their Basic Oxygen Steelmaking (BOS) furnace. He developed a detailed Computational Fluid Dynamics (CFD) model to identify potential wear-prone zones in the steelmaking furnace and to evaluate the feasibility of coating formation on the furnace walls using the slag splashing technique. Additionally, he investigated the underlying coating formation mechanism in a single molten droplet–solid surface system through both experimental and numerical approaches.

Dr. Chowdhury is skilled in Computational Fluid Dynamics (CFD) modelling, experimental techniques using high-speed imaging, thermocouples, and high-speed thermal imaging, as well as image processing, data analysis, and project report writing. He has substantial experience interacting with industry partners and multidisciplinary teams, applying his mathematical knowledge to address complex industrial challenges.

Before embarking on his research career, Dr. Chowdhury completed his Bachelor’s and Master’s degrees in Mathematics at the University of Rajshahi, Bangladesh. He also earned a Master of Philosophy degree in Mathematics from Bangladesh University of Engineering and Technology (BUET) in October 2016. In his MPhil thesis, he developed a numerical model to investigate double-diffusive natural convection flow in a porous triangular enclosure filled with nanofluid, considering the effects of a magnetic field and heat generation.

In his professional career, Dr. Chowdhury served as a full-time Assistant Professor of Mathematics in the Department of Natural Science at Stamford University Bangladesh from July 2015 to March 2018. He joined Stamford University in January 2011 as a full-time Lecturer in Mathematics and was promoted to Senior Lecturer in 2013.


Qualifications

  • Doctor of Philosophy in Chemical Engineering, University of Newcastle
  • Master of Philosophy in Mathematics, Bangladesh University of Engineering & Technology

Keywords

  • CFD
  • Fluid mechanics
  • Heat and mass transfer
  • Image processing
  • Multiphase flow
  • Solidification

Languages

  • Bengali (Mother)
  • English (Fluent)

Fields of Research

Code Description Percentage
401999 Resources engineering and extractive metallurgy not elsewhere classified 35
401204 Computational methods in fluid flow, heat and mass transfer (incl. computational fluid dynamics) 35
401211 Multiphysics flows (incl. multiphase and reacting flows) 30

Professional Experience

UON Appointment

Title Organisation / Department
Research Associate University of Newcastle
School of Engineering
Australia

Academic appointment

Dates Title Organisation / Department
22/8/2022 -  Casual Research Assistant School of Engineering, The University of Newcastle
Australia
9/7/2015 - 20/3/2018 Assistant Professor Stamford University Bangladesh
Bangladesh
9/3/2013 - 8/7/2015 Senior Lecturer Stamford University Bangladesh
Bangladesh
16/1/2011 - 8/3/2013 Lecturer Stamford University Bangladesh
Bangladesh

Awards

Scholarship

Year Award
2018 University of Newcastle International Postgraduate Research Scholarship (UNIPRS)
The University of Newcastle | Australia
2018 University of Newcastle Research Scholarship Central (UNRSC 50:50)
The University of Newcastle
2018 Research Training Program (RTP) Stipend Scholarship
Western Sydney University
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Publications

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


Book (1 outputs)

Year Citation Altmetrics Link
2012 Chowdhury R, Radical Classes and Semi-Simple Classes of Rings, LAP Lambert Academic Publishing, 108 (2012)

Conference (16 outputs)

Year Citation Altmetrics Link
2024 Chowdhury R, Evans G, Honeyands T, Monaghan BJ, Scimone D, Mitra S, 'Numerical modelling of spreading dynamics of a single molten droplet impingement on a solid surface of different inclinations' (2024)
Co-authors Tom A Honeyands, Subhasish Mitra
2024 Chowdhury R, Mitra S, Evans G, Honeyands TA, Monaghan BJ, Scimone D, 'An investigation of potential wear occurring on refractory lining and coating formation- a remedy of wear in a basic oxygen steelmaking furnace using CFD modelling', 12th International Conference of Molten Slags, Fluxes and Salts. MOLTEN 2024 Proceedings, Brisbane, Australia (2024) [E1]
Co-authors Geoffrey Evans, Tom A Honeyands
2024 Chowdhury R, Evans G, Mitra S, 'Effect of surfactant concentration on particle entrainment behaviour during a single bubble ascent' (2024)
Co-authors Geoffrey Evans
2023 Zakari A, Chowdhury R, Ireland P, Evans G, Mitra S, 'Identifying flow regime transition in a Reflux Flotation Cell™ (RFC)' (2023)
Co-authors Subhasish Mitra, Peter Ireland, Geoffrey Evans
2021 Chowdhury R, Mitra S, Evans G, Honeyands TA, Monaghan BJ, Scimone D, 'Numerical modelling of slag splashing in Basic Oxygen Steelmaking furnace' (2021)
Co-authors Tom A Honeyands
2020 Chowdhury R, Mitra S, Hoque MM, Evans G, Honeyands T, Monaghan B, Scimone D, 'Weber Number Effect on Molten Droplet Impingement on a Flat Substrate', Chemeca 2020: Renew, Sustain, Disrupt, Advance, 118-131 (2020) [E1]
DOI 10.3316/INFORMIT.478625151335835
Co-authors Geoffrey Evans, Subhasish Mitra, Tom A Honeyands
2018 Munshi MJH, Alim MA, Chowdhury R, 'Magnetohydrodynamic Mixed Convection in a Double Lid driven Porous Square Enclosure Filled with Copper-water Nanofluid with Heat Generating Elliptic Block', PROCEEDINGS OF THE 12TH INTERNATIONAL CONFERENCE ON MECHANICAL ENGINEERING (ICME 2017), 1980 (2018)

Magnetohydrodynamic mixed convection in a double lid driven porous square enclosure filled with copper- water nanofluid with heat generating elliptic block has been numerically si... [more]

Magnetohydrodynamic mixed convection in a double lid driven porous square enclosure filled with copper- water nanofluid with heat generating elliptic block has been numerically simulated in this paper. The governing differential equations are solved by finite element method (Galerkin weighted residual method). The top lid moves at a constant speed with cold temperature. The bottom lid moves at constant speed with heated temperature, linearly heated left and right wall, and a heat generating elliptic body is placed at the center. The magnetic field of strength B is applied parallel to x-axis. Numerical results are obtained for a wide range of parameters such as Darcy number, Grashof number, Reynolds number and copper-water nanofluids is used with Prandtl number of 6.2 throughout the simulation. The streamlines, isotherms, velocity plots and the variation of the average Nusselt number at the hot surface as well as average fluid temperature in the enclosure is presented and discussed. Comparisons with previously numerical works are performed and good agreements between the results are observed. It is found that the governing parameters would result in higher heat transfer. Moreover, it is observed that the both the Darcy number and moving lid ordinations have a significant effect on the flow and thermal fields in the enclosure.

DOI 10.1063/1.5044345
Citations Scopus - 1Web of Science - 1
2018 Chowdhury R, Parvin S, Khan MAH, 'Numerical simulation of double-diffusive natural convection in a triangular enclosure filled with nanofluid saturated porous medium with magnetic field', Dhaka, Bangladesh. (2018)
2017 Chowdhury R, Parvin S, Khan MAH, 'Double-diffusive Natural Convection of Cu-Water Nanofluid in a Window Shaped Cavity Containing Multiple Obstacles with a Heater on Bottom Wall', 7TH BSME INTERNATIONAL CONFERENCE ON THERMAL ENGINEERING (ICTE), 1851 (2017)

In the present study, natural convective heat and mass transfer and fluid flow inside a window shaped cavity filled with Cu-water nanofluid and containing multiple obstacles with ... [more]

In the present study, natural convective heat and mass transfer and fluid flow inside a window shaped cavity filled with Cu-water nanofluid and containing multiple obstacles with a finite size heater placed in its horizontal wall is numerically investigated. Sinusoidal temperature distribution is maintained by the heater. The left and right inclined walls of the cavity are maintained at a relatively low temperature while the vertical walls are insulated. The governing equations are transformed to the dimensionless form and solved numerically using Galerkin weighted residual technique of finite element method. The influence of pertinent parameters such as thermal Rayleigh number, location of the heater and solid volume fraction of nanoparticles on the heat and mass transfer and fluid flow is studied. The results are obtained in terms of streamlines, isotherms, isoconcentrations, average Sherwood number and average Nueeslt number for the considered parameters and it is observed that the flow pattern, temperature and concentration fields are affected by the variation of the mentioned parameters.

DOI 10.1063/1.4984656
2017 Parvin S, Ahmed S, Chowdhury R, 'Effect of Solar Irradiation on Forced Convective Heat Transfer through a Nanofluid Based Direct Absorption Solar Collector', 7TH BSME INTERNATIONAL CONFERENCE ON THERMAL ENGINEERING (ICTE), 1851 (2017)

The present work investigates numerically the convective and radiative heat transfer performance and entropy generation of forced convection through a direct absorption solar coll... [more]

The present work investigates numerically the convective and radiative heat transfer performance and entropy generation of forced convection through a direct absorption solar collector (DASC). Four different fluids; Cu-water nanofluid, Al2O3-waternanofluid, TiO2-water nanofluid and pure water are used as the working fluid. Entropy production has been taken into account in addition to the collector efficiency and heat transfer enhancement. Penalty finite element method with Galerkin's weighted residual technique is used to solve the governing non-linear partial differential equations. Numerical simulations are performed for the variation of solar irradiation (I). The outcomes are presented in the form of isotherms, average output temperature, the average Nusselt number, collector efficiency, average entropy generation and Bejan number. The results present that the rate of heat transfer and collector efficiency enhance significantly for raising the values of I upto a certain range.

DOI 10.1063/1.4984696
Citations Scopus - 7Web of Science - 8
2017 Chowdhury R, Parvin S, Khan MAH, 'Numerical Study of Double-diffusive Natural Convection in a Window Shaped Cavity Containing Multiple Obstacles Filled with Nanofluid', 10TH INTERNATIONAL CONFERENCE ON MARINE TECHNOLOGY (MARTEC 2016), 194, 471-478 (2017)

In the present study, double-diffusive natural convection flow inside a window shaped cavity containing multiple obstacles filled with nanofluid is studied numerically. Water base... [more]

In the present study, double-diffusive natural convection flow inside a window shaped cavity containing multiple obstacles filled with nanofluid is studied numerically. Water base nanofluid containing various nanoparticles including Ag, Cu and Al2O3 are considered as working fluid. The left and right inclined walls of the cavity are maintained at a relatively low temperature and low concentration while the vertical walls are adiabatic and impermeable. The non-uniform temperature and concentration are imposed along the bottom wall of the cavity. The governing equations are transformed to the dimensionless form and solved numerically using Galerkin weighted residual technique of finite element method. The influence of pertinent parameters such as thermal Rayleigh number and Lewis number and volume fraction of nanoparticles on the heat and mass transfer and fluid flow is studied. The results are obtained in terms of streamlines, isotherms, isoconcentrations, average Nusselt number and average Sherwood number for the considered parameters and it is observed that the flow pattern, temperature and concentration fields are affected by the variation of the parameters.

DOI 10.1016/j.proeng.2017.08.173
Citations Scopus - 1Web of Science - 7
2016 Chowdhury R, Parvin S, Khan MAH, 'Natural Convective Heat and Mass Transfer in a Porous Triangular Enclosure Filled with Nanofluid in Presence of Heat Generation', PROCEEDINGS OF THE 11TH INTERNATIONAL CONFERENCE ON MECHANICAL ENGINEERING (ICME 2015), 1754 (2016)

The problem of natural convective heat and mass transfer in a triangular enclosure filled with nanofluid saturated porous medium in presence of heat generation has been studied in... [more]

The problem of natural convective heat and mass transfer in a triangular enclosure filled with nanofluid saturated porous medium in presence of heat generation has been studied in this paper. The bottom wall of the cavity is heated uniformly, the left inclined wall is heated linearly and the right inclined wall is considered to be cold. The concentration is higher at bottom wall, lower at right inclined wall and linearly concentrated at left inclined wall of the cavity. The governing equations are transformed to the dimensionless form and solved numerically using Galerkin weighted residual technique of finite element method. The results are obtained in terms of streamline, isotherms, isoconcentrations, Nusselt number (Nu) and Sherwood number (Sh) for the parameters thermal Rayleigh number (RaT), Heat generation parameter (¿) and Lewis number (Le) while Prandtl number (Pr), Buoyancy ratio (N) and Darcy number (Da) are considered to be fixed. It is observed that flow pattern, temperature fields and concentration fields are affected by the variation of above considered parameters.

DOI 10.1063/1.4958395
Citations Scopus - 1Web of Science - 1
2015 Chowdhury R, Parvin S, Khan MAH, 'Double diffusive natural convection in a porous wavy triangular enclosure filled with nanofluid in presence of magnetic field', Rajshahi, Bangladesh. (2015)
2015 Chowdhury R, Parvin S, Nasrin R, 'Natural convection in a nanofluid filled prismatic cavity with non-isothermal bottom wall', Rajshahi, Bangladesh. (2015)
2015 Chowdhury R, Parvin S, Khan MAH, 'Heat generation effect on natural convection flow in a rhombic shape cavity containing a rectangular block', Chittagong University of Engineering and Technology, Bangladesh. (2015)
2014 Chowdhury R, Parvin S, Khan MAH, 'MHD effect on free convection flow in porous media filled equilateral triangular cavity with heat generation', IUT, Dhaka, Bangladesh. (2014)
Show 13 more conferences

Journal article (9 outputs)

Year Citation Altmetrics Link
2025 Zakari AG, Chowdhury R, Ireland P, Evans G, Mitra S, 'Measurement of gas dispersion parameters in a reflux flotation cell', Minerals Engineering, 232, 109526-109526 (2025)
DOI 10.1016/j.mineng.2025.109526
Co-authors Subhasish Mitra, Peter Ireland, Geoffrey Evans
2025 Chowdhury R, Evans G, Honeyands T, Monaghan BJ, Scimone D, Mitra S, 'A 2D Numerical Modeling Study of Slag Splashing in a Basic Oxygen Steelmaking Furnace', ACS Engineering Au, 5, 98-114 (2025) [C1]
DOI 10.1021/acsengineeringau.4c00039
Co-authors Geoffrey Evans, Subhasish Mitra
2024 Chowdhury R, Hoque MM, Evans G, Honeyands T, Monaghan BJ, Scimone D, Mitra S, 'Impact dynamics and solidification behaviour of a molten droplet on a flat surface at different Weber numbers', EXPERIMENTAL THERMAL AND FLUID SCIENCE, 154 (2024) [C1]
DOI 10.1016/j.expthermflusci.2024.111156
Citations Scopus - 1
Co-authors Geoffrey Evans, Tom A Honeyands, Subhasish Mitra
2018 Kumar D, Seadawy AR, Chowdhury R, 'On new complex soliton structures of the nonlinear partial differential equation describing the pulse narrowing nonlinear transmission lines', OPTICAL AND QUANTUM ELECTRONICS, 50 (2018) [C1]

The present paper studies the pulse narrowing nonlinear transmission lines equation, describing pulse narrowing in the field of communication engineering. More precisely, the puls... [more]

The present paper studies the pulse narrowing nonlinear transmission lines equation, describing pulse narrowing in the field of communication engineering. More precisely, the pulse narrowing nonlinear transmission line equation is solved analytically using the recently developed techniques viz the modified Kudraysov method, the sine-Gordon equation expansion method and the extended sinh-Gordon equation expansion method. As a result, a wide range of dark, bright, dark¿bright, singular or combined singular and optical soliton solutions for the pulse narrowing nonlinear transmission lines equation is formally obtained. All solutions have been verified back into its corresponding equation with the aid of maple package program.

DOI 10.1007/s11082-018-1383-6
Citations Scopus - 3Web of Science - 26
2017 Parvin S, Chowdhury R, Khan MAH, Alim MA, 'Performance of nanofluid in free convective heat transfer inside a cavity with non-isothermal boundary conditions', Mechanical Engineering Research Journal, 10 1-6 (2017) [C1]
2016 Chowdhury R, Parvin S, Khan MAH, 'Finite element analysis of double-diffusive natural convection in a porous triangular enclosure filled with Al2O3-water nanofluid in presence of heat generation', Heliyon, 2 (2016) [C1]

The problem of double-diffusive natural convection of Al2O3-water nanofluid in a porous triangular enclosure in presence of heat generation has been studied numerically in this pa... [more]

The problem of double-diffusive natural convection of Al2O3-water nanofluid in a porous triangular enclosure in presence of heat generation has been studied numerically in this paper. The bottom wall of the cavity is heated isothermally, the left inclined wall is non-isothermal and the right inclined wall is considered to be cold. The concentration is higher at bottom wall, lower at right inclined wall and non-isoconcentration at left inclined wall of the cavity. The governing equations are transformed to the dimensionless form and solved numerically using Galerkin weighted residual technique of finite element method. The results are obtained in terms of streamlines, isotherms, isoconcentrations, average Nueeslt number (Nu) and average Sherwood number (Sh) for the parameters thermal Rayleigh number (RaT), dimensionless heat generation parameter (¿), solid volume fraction (¿) and Lewis number (Le) while Prandtl number (Pr), Buoyancy ratio (N) and Darcy number (Da) are considered to be fixed. It is observed that flow pattern, temperature fields and concentration fields are affected by the variation of above considered parameters.

DOI 10.1016/j.heliyon.2016.e00140
Citations Scopus - 24
2016 Fahmida Ferdousi S, 'Prandtl Number Effect of Mixed Convection Heat and Mass Transfer in a Triangular Enclosure with Heated Circular Obstacle', International Journal of Energy and Power Engineering, 5 39-39 (2016)
DOI 10.11648/j.ijepe.20160502.13
2015 Chowdhury R, Parvin S, Khan MAH, Chamkha AJ, 'MHD natural convectionin aporous equilateral triangular enclosure with a heated square body in the presence of heat generation', Special Topics and Reviews in Porous Media, 6, 353-365 (2015)

The present numerical work is performed to analyze the heat transfer and fluid flow due to free convection in a porous equilateral triangular enclosure with a heated square body i... [more]

The present numerical work is performed to analyze the heat transfer and fluid flow due to free convection in a porous equilateral triangular enclosure with a heated square body in the presence of magnetic field and heat generation. The left inclined wall of the enclosure is adiabatic while the horizontal wall is heated at a uniform temperature; the lower portion of the right inclined wall is considered to be nonisothermal and the upper portion of the wall is cold. The square body is maintained at a constant temperature. The governing equations are solved numerically subject to appropriate boundary conditions by the finite element method using Galerkin's weighted residuals scheme. Results are presented by streamlines, isotherms, mean Nusselt numbers for the different parameters such as Hartmann number (Ha), heat generation (¿), and size of the square body (lb). The Prandtl number (Pr) and Rayleigh number (Ra) are considered fixed. It is observed that the size of the body plays an important role with regard to the heat and fluid flow inside the cavity.

DOI 10.1615/SpecialTopicsRevPorousMedia.v6.i4.40
Citations Scopus - 8
2015 Chowdhury R, 'Natural Convection in Porous Triangular Enclosure with a Circular Obstacle in Presence of Heat Generation', American Journal of Applied Mathematics, 3 51-51 (2015)
DOI 10.11648/j.ajam.20150302.14
Show 6 more journal articles

Thesis / Dissertation (1 outputs)

Year Citation Altmetrics Link
2023 Chowdhury R, 'SLAG SPLASHING DYNAMICS IN BASIC OXYGEN STEELMAKING FURNACE-A FUNDAMENTAL STUDY ON THE COATING FORMATION BY MOLTEN DROPLETS' (2023)
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Dr Raju Chowdhury

Positions

Research Associate
School of Engineering
College of Engineering, Science and Environment

Casual Research Assistant
School of Engineering
College of Engineering, Science and Environment

Contact Details

Email raju.chowdhury@newcastle.edu.au
Phone (02) 4055 3153
Mobile (02) 4055 3153

Office

Room Desk 06, Level 3, NIER A Block
Building NIER A Block
Location Callaghan
University Drive
Callaghan, NSW 2308
Australia
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