Dr. Zahir Uddin Ahmed
Professor
Department of Mechanical Engineering
Khulna University of Engineering & Technology (KUET)
Khulna -9203, Bangladesh.

Website : www.kuet.ac.bd/me/zuahmed/

National/International Journal

(Selected Papers)

28 Sudipta Debnath, Md Tanvir Khan, Zahir U. Ahmed, "Substrate Characteristics of Multiple Arrays of Turbulent Swirling Impinging Jets", Journal of Flow Visualization & Image Processing, Begell House Inc., vol. 30, issue 5, 2023
10.1615/JFlowVisImageProc.2023045132
27 Sajih Bin Suja, Md. Rhyhanul Islam, Zahir U. Ahmed, "Swirling jet impingements for thermal management of high concentrator solar cells using nanofluids", International Journal of Thermofluids, Elsevier, vol. 19, pp. 100387, 2023
https://doi.org/10.1016/j.ijft.2023.100387
26 Md Rhyhanul Islam, Zahir U. Ahmed, Khandkar Aftab Hossain, "Numerical analysis of LOx-BioLPG combustion in high-pressure liquid rocket engine propulsion system", South African Journal of Chemical Engineering, Elsevier, vol. 45, pp. 83-99, 2023
https://doi.org/10.1016/j.sajce.2023.05.004
25 Zahir U. Ahmed, Yasir M. Al-Abdeli, "Temperature uniformity, correlations and the flow field in swirling impinging jets", Journal of Thermal Science, Spriger Nature, vol. 32, issue 2, pp. 662-679, 2023
https://doi.org/10.1007/s11630-023-1740-z
24 Sudipta Debnath, Md Tanvir Khan, Zahir U. Ahmed, "Investigation on Circular Array of Turbulent Impinging Round Jets at Confined Case: A CFD Study ", Journal of Engineering Advancements, Scien PG, vol. 3, issue 4, pp. 144-154, 2022
https://doi.org/10.38032/jea.2022.04.002
23 Anob Dey, Zahir U. Ahmed, Md. Ramijul Alam, "Thermal and exergy analysis of Pin-finned heatsinks for nanofluid cooled high concentrated photovoltaic thermal (HCPV/T) hybrid systems", Energy Conversion and Management: X, Elsevier, vol. 16, pp. 100324, 2022
https://doi.org/10.1016/j.ecmx.2022.100324
22 Sudipta Debnath; Zahir U. Ahmed; Muhammad Ikhlaq; Tanvir Khan, "Thermal characteristics of arrays of swirling impinging jets: Effect of Reynolds number, impingement distance, and jet-to-jet separation", Heat Transfer, Wiley, vol. 52, issue 1, pp. 585-608, 2023
https://doi.org/10.1002/htj.22708
21 Zahir U. Ahmed, Md. Roni Raihan, Omidreza Ghaffari, Muhammad Ikhlaq, "Thermal and hydraulic performances of porous microchannel heat sink using nanofluids", Thermal Science and Engineering Applications , ASME Journals, vol. 14, issue 7, pp. 071012:14, 2022
https://doi.org/10.1115/1.4052985
20 Md. Tanvir Khan, Zahir U. Ahmed, "Effect of nanofluids on heat transfer characteristics of an aerodynamic swirl nozzle for isothermal and adiabatic conditions", Australian Journal of Mechanical Engineering, Taylor & Francis, 2022
https://doi.org/10.1080/14484846.2022.2066837
19 Mohammad Mashud, Shabnoor M. Joty and Zahir U. Ahmed, "Optimization of low speed wind turbine blade profile on the basis of lift coefficient", Journal of Engineering and Applied Sciences, APRN, vol. 16, issue 2, pp. 112-120, 2021
18 Sudipta Debnath, Md. Habib Ullah Khan, Zahir U. Ahmed, "Turbulent swirling impinging jet arrays: A numerical study on fluid flow and heat transfer", Thermal Science and Engineering Progress, Elsevier, vol. 19, pp. 100580(12), 2020
https://doi.org/10.1016/j.tsep.2020.100580
17 Sharif M. Islam, Md. Tanvir Khan, Zahir U. Ahmed, "Effect of geometric parameters on flow characteristics of a swirl nozzle", Progress in Computation Fluid Dynamics, Inderscience, vol. 20, issue 5, pp. 249-262, 2020
https://doi.org/10.1504/PCFD.2020.109912
16 Md. Tanvir Khan, Sharif M. Islam, Zahir U. Ahmed, "Near-wall and turbulence behavior of swirl flows through an aerodynamic swirl nozzle", Journal of Engineering Advancements, ScienPG, vol. 1, issue 2, pp. 43-52, 2020
https://doi.org/10.38032/jea.2020.02.003
15 Md. Habib U. Khan, Zahir U. Ahmed, "Fluid flow and heat transfer characteristics of multiple swirling impinging jets at various impingement distances", International Journal of Thermofluid Science and Technology, IJTF, vol. 6, issue 4, pp. 060403(12), 2019
https://doi.org/10.36963/IJTST.19060403
14 Shabnoor M. Joty, Zahir U. Ahmed, Barun K. Das, "Optimal sizing of a stand-alone PV/Wind/ICE/Battery for application in a university campus of Bangladesh", International Journal of Industrial Electronics and Electrical Engineering, IRAJ, vol. 6, issue 10, pp. 53-59, 2018
http://ijieee.org.in
13 Zahir U. Ahmed, Yasir M. Al-Abdeli, Ferdinando G. Guzzomi, "Flow field and thermal behaviour in swirling and non-swirling turbulent impinging jets", International Journal of Thermal Science, Elsevier, vol. 114, pp. 241-256, 2017
https://doi.org/10.1016/j.ijthermalsci.2016.12.013
12 Bashar A. Baki, Roger E. Khayat, Zahir U. Ahmed, "Thermal convection of viscoelastic shear-thinning fluids", Fluid Dynamics Research, IOPScience, vol. 48, issue 6, pp. 061406(25), 2016
https://doi.org/10.1088/0169-5983/48/6/061406
11 Zahir U. Ahmed, Yasir M. Al-Abdeli, Ferdinando G. Guzzomi, "Heat transfer characteristics of swirling and non-swirling impinging turbulent jets", International Journal of Heat and Mass Transfer, Elsevier, vol. 102, pp. 991-1003, 2016
https://doi.org/10.1016/j.ijheatmasstransfer.2016.06.037
10 Zahir U. Ahmed, Yasir M. Al-Abdeli, Ferdinando G. Guzzomi, "Correction of dual-wire CTA data in turbulent swirling and non-swirling jets", Experimental Thermal and Fluid Science, Elsevier, vol. 70, pp. 166-175, 2016
https://doi.org/10.1016/j.expthermflusci.2015.09.007
9 Zahir U. Ahmed, Yasir M. Al-Abdeli, Ferdinando G. Guzzomi, "Impingement pressure characteristics of swirling and non-swirling turbulent jets", Experimental Thermal and Fluid Science, Elsevier, vol. 68, pp. 722-732, 2015
https://doi.org/10.1016/j.expthermflusci.2015.07.017
8 Zahir U. Ahmed, Yasir M. Al-Abdeli, Miccal T. Matthews, "The effect of inflow conditions on the development of non-swirling versus swirling impinging turbulent jets", Computers & Fluids, Elsevier, vol. 118, pp. 255-273, 2015
https://doi.org/10.1016/j.compfluid.2015.06.024
7 Mohammad Niknami, Zahir U. Ahmed, Bashar A. Baki, Roger E. Khayat, "A combined spectral-amplitude-perturbation approach for systematic mode selection in thermal convection", International Journal of Numerical Methods for Heat & Fluid Flow, Emerald Group, vol. 25, issue 4, pp. 782-802, 2015
https://doi.org/10.1108/HFF-03-2014-0074
6 Zahir U. Ahmed, Roger E. Khayat, P. Maissa, C. Mathis, "Non-axisymmetric annular curtain stability", Physics of Fluids, American Institute of Physics, vol. 25, issue 8, pp. 082104(37), 2013
https://doi.org/10.1063/1.4817392
5 Zahir U. Ahmed, Bashar A. Baki, Roger E. Khayat, "Combined spectral-perturbation approach for systematic mode selection in thermal convection", Journal of Heat Transfer, ASME Journals, vol. 135, pp. 111007(12), 2013
https://doi.org/10.1115/1.4024612
4 Zahir U. Ahmed, Roger E. Khayat, P. Maissa and C. Mathis, "Axisymmetric annular curtain stability", Fluid Dynamics Research, IOPScience, vol. 44, issue 3, pp. 031401(14), 2012
https://doi.org/10.1088/0169-5983/44/3/031401
3 Zahir U. Ahmed, Roger E. Khayat, "Three dimensional film stability and draw resonance", Journal of Fluids Engineering, ASME Journals, vol. 134, issue 10, pp. 101302(14), 2012
https://doi.org/10.1115/1.4007384
2 Md. A. Wakil, Zahir U. Ahmed, "Effects of inertia and process parameters on isothermal high-speed two-layer filament jet flow", International Journal of Mechanical Engineering, vol. 2, issue 5, pp. 19-27, 2012
1 Md. A. Wakil, Zahir. U. Ahmed, Md. H. Rahman, Md. Arifuzzaman, "Study on fuel properties of various vegetable oil available in Bangladesh and biodiesel production", International Journal of Mechanical Engineering, vol. 2, issue 5, pp. 10-17, 2012


National/International Conference

(Selected Papers)

21 Sajih Bin Suja, Md. Rhyhanul Islam Pranto, Raydah Nudrat Turna, Zahir U. Ahmed, "Conjugate heat transfer analysis of different CPU cooling processes using computational fluid dynamics", Int. Conf. on Mech. Indust. Energy Engg., Khulna, Bangladesh, 2020
20 Joy Saha, Nahid-Al-Nahian Rahat, Zahir U. Ahmed, "Numerical analysis of wall characteristics for turbulent swirling jets impinged on a concave surface", Int. Conf. on Mech. Indust. Energy Engg., Khulna, Bangladesh, 2020
19 Sudipta Debnath, Zahir U. Ahmed, "Computational analysis of multiple non-swirlng and swirling impinging air jets", Int. Conf. on Mech. Indust. Energy Engg., Khulna, Bangladesh, 2020
18 Sharif M. Islam, Md. Tanvir Khan, Zahir U. Ahmed, "Implementation of an eco-friendly earth-to-air heat exchanger for cooling effect using renewable energy sources", Int. Conf. Mech. Engg. Renew. Energy , Chittagong, Bangladesh, 2019
17 Zahir U. Ahmed, Shabnoor Mahmud Joty, Mohammad Mashud, "Comparative study of NACA 4412 and NACA 4421 profiles for low speed wind turbine blade", Int. conf. Mech. Engg. Renew. Energy, Chittagong, Bangladesh, 2019
16 Masbah-Ul-Hakim, Zahir U. Ahmed, "Numerical simulation of liquid jets impinging on an isothermal stationary substrate and hydraulic jump", Int. Conf. Mech. Indust. Mater. Engg., Rajshahi, Bangladesh, 2019
15 Kazi R. Islam, Zahir U. Ahmed, "Effect of inertia and gravity on three dimensional non-isothermal film stability", Int. Conf. on Mech. Indust. Energy Engg., Khulna, Bangladesh, 2018
14 Sudipta Debnath, Md. Habib U. Khan, Zahir U. Ahmed, Md. Mahmodul Alam, "The effect of swirl on array of turbulent impinging jets", Int. Conf. on Mech. Indust. Energy Engg., Khulna, Bangladesh, 2018
13 Shabnoor M. Joty, Zahir U. Ahmed, Barun K. Das, "Optimal sizing of a stand-alone PV/Wind/ICE/Battery for application of a university campus in Bangladesh", Int. Conf. Sci. Engg. Tech., Sydney, Australia, 2018
12 Zahir U. Ahmed, Yasir M. Al-Abdeli, "Flow characteristics due to jet impact at low swirl intensity", Int. Conf. Engg. Res. Innov. Educ., Sylhet, Bangladesh, 2017
11 Md. M. Islam, Sumaiya Tasnim, Zahir U. Ahmed, "Numerical study of a swirl nozzle at moderate Reynolds numberNumerical study of a swirl nozzle at moderate Reynolds number", Int. Conf. Mech. Engg. Renew. Energy, Chittagong, Bangladesh, 2017
10 Md. Habib U. Khan, Zahir U. Ahmed, "Numerical investigation of arrays of circular swirling impinging jets", Int. Conf. Mech. Engg. Renew. Energy , Chittagong, Bangladesh, 2017
9 Zahir U. Ahmed, Md. Habib U. Khan, Roger E. Khayat, Sumaiya Tasnim, "Effect of flow confinement on the hydrodynamics and heat transfer characteristics of swirling impinging jets", Int. Conf. Mech. Engg., Dhaka, Bangladesh, 2017
8 Sumaiya Tasnim, Md. M. Islam, Shabnoor M. Joty, Zahir U. Ahmed, "A numerical study on the fluid structure interaction of a wind turbine blade", Int. Conf. Mech. Indust. Mater. Engg., Rajshahi, Bangladesh, 2017
7 Bashar Albaalbaki, Roger E. Khayat, Zahir U. Ahmed, "Thermal convection of Phan-Thien Tanner fluids", Proceedings of the Canadian Society for Mechanical Engineering International Congress, Kelowna, BC, Canada, 2016
6 Brett Thomas, Zahir U. Ahmed, Yasir M. Al-Abdeli, Miccal T. Matthews, "The optimisation of a turbulent swirl nozzle using CFD", Proceedings of Australian Combustion Symposium, Perth, Australia, 2012
5 Md. M. Rahman, Zahir U. Ahmed, Md. A. Wakil, Md. A. Jalil, "Falling film flow along vertical plate with temperature-dependent properties", Int. Conf. Mechanical Engg., Dhaka, Bangladesh, 2011
4 Zahir U. Ahmed, Md. A. Wakil, "Effects of gravity and fluid properties on isothermal high speed two-layer filament jet flow", Int. Conf. Mechanical Engg., Dhaka, Bangladesh, 2011
3 Zahir U. Ahmed, Roger E. Khayat, "Axisymmetric annular curtain stability with viscous gas media", Int. Conf. on Mech., Indust. Energy Engg., Khulna, Bangladesh, 2010
2 Zahir U. Ahmed, Roger E. Khayat, "Role of inertia and gravity on three dimensional film casting and stability", 13th Asian Congr.of Fluid Mech., Dhaka, Bangladesh, 2010
1 Syed A. Molla, Zahir U. Ahmed, Md. A. Wakil, Md. I. Inam, "Formation of air pollution in IC engine and its controlling measures", Int. Conf. on Mech. Indust. Energy Engg., Khulna, Bangladesh, 2010


Last Update: 01 Jul 2023