Home \ Faculty Details \ Gazi Iftekhar Mahmood
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  • Phone:

    0138498514

  • Email:

    gmahmood@pmu.edu.sa

  • Office No:

    COE S-043

  • Gazi Iftekhar Mahmood

  • Job Title :

    Assistant Professor

  • College :

    College of Engineering


  • Department :

    Mechanical Engineering


Dr. Mahmood received his Ph.D. degree from the University of Utah (Salt Lake City), USA, in 2001, M.Eng. degree from the City University of New York, USA, in 1997, and B. Tech. degree from the Indian Institute of Technology (Bombay/Mumbai), India, in 1995. All of the degrees were obtained in the Mechanical Engineering.

Dr. Gazi Mahmood has several years of experiences in teaching and research in both undergraduate and postgraduate levels in the tertiary institutes. Before joining to the PMU, he taught and researched in the thermo-fluid sciences at the University of Pretoria, South Africa, for about 9 nine years. He also worked as a research scientist in the fields of gas turbine aero-thermodynamics and energy exchangers at the Louisiana State University (USA) and University of Saskatchewan (Canada) in addition to his industrial experience as an R&D Engineer at the Venmer CES (Saskatoon, Canada).  His primary research focus is on the fluid dynamics and heat transfer in the gas turbine passages, heat exchangers, solar panels, and electronic and battery cooling channels. He has special interests in the aerodynamic control of UAV objects, vapor transfer through semi-permeable membranes, applications of fluidic actuators, non-intrusive experimental techniques for heat transfer. He has supervised several Masters and PhD students and published more than 50 articles in refereed journals and conferences.

Dr. Gazi Mahmood is committed to contribute to the diversity of the PMU’s future strategies and to preparing a generation of engineers of international standards.

Research links:

https://orcid.org/0000-0002-3255-5700

https://scholar.google.com/citations?hl=en&user=HCRwM7MAAAAJ

http://www.scopus.com/authid/detail.url?authorId=6603047359

Degree

Field of study

Higher education institution

Year

Ph.D.

 

Mechanical Engr.

Univ. of Utah, Utah, USA

2001

M.Engr.

 

Mechanical Engr.

City Univ. of New York, USA

1997

B.Tech.

 

Mechanical Engr.

Indian Inst. Of Technology, Bombay, India

1995

 

Journal publications:

(1)     Aasa S.A. and Mahmood G.I., “Thermos-aerodynamic performance and heat transfer analysis in a rectangular channel using various angle groove geometry,” J. Engineering Research (Elsevier), Published online 05 Sept 2024. https://doi.org/10.1016/j.jer.2024.09.003.

(2)     Shote A.S., Huyssen B.B., and Mahmood G.I., ”Endwall film-cooling in a cascade with filleted vane, upstream discrete slots, and holes,” Experimental Heat Transfer, Published online 11 Nov 2024, Open access. DOI: 10.1080/08916152.2024.2424820

(3)     Shote A.S. and Mahmood G.I., “Sensitivity of the endwall flow in a linear vane cascade to blade fillet geometry,” J. Engineering Research (Elsevier), Published online 25 June 2024. https://doi.org/10.1016/j.jer.2024.06.009.

(4)     Coetzee F.J.J. and Mahmood G.I., “CYLINDRICAL CROSS-BARS FOR THERMAL PERFORMANCE AUGMENTATION IN AIR CHANNEL,” Heat Transfer Research, 55(14), pp. 47-72 (2024). DOI: 10.1615/HeatTransRes.2024052886.

(5)     Huyssen B.B., Shote A.S., and Mahmood G.I., “Upstream Endwall Film-Cooing in a Vane Cascade with Cylindrical Shape Holes,” accepted AIAA J Thermophysics Heat Transfer, Published Online: 9 Mar 2023. https://doi.org/10.2514/1.T6607.

(6)     Roux S.M., Mahmood G.I., and Meyer J.P., “EFFECT OF SIDEPINS ON THE THERMOHYDRAULIC CHARACTERISTICS OF AN ARRAY OF INTERNAL PIN-FINS,” Heat Transfer Research, 51(9), pp. 879-895, 2020.  DOI: 10.1615/HeatTransRes.2020030239.

(7)     Torr A., Mahmood G.I., and Cramer L., “Heat Transfer-Friction Factor and Correlations for Wavy Porous Screens as Inserts in Channel Thermal Performance,” ASME J. Thermal Science Eng Applications, vol. 12, 0510011-05100111, 2020.  DOI : 10.1115/1.4045883.

(8)     Shote S.A., Mahmood G.I., and Meyer J.P., “Influences of large fillets on endwall flows in a vane cascade with upstream slot film-cooling,” Exp Therm Fluid Sciences, Vol. 112, 01 April 2020, 109951. doi.org/10.1016/j.expthermflusci.2019.109951.

(9)     Cramer L., Mahmood G.I., and Meyer JP, “Thermohydraulic Performance of a Channel Employing Wavy Porous Screens,” paper no. HTR-25337, Heat Transfer Research, Vol. 49 (18), pp. 1867-1883, 2018. DOI: 10.1615/HeatTransRes.2018025337.

(10)  Mahmood G.I. and Arnachellan K, “Effects of Upstream Endwall Film-cooling on a Vane Cascade Flow-field,” manuscript no. 2017-02-B36640, AIAA J. Propulsion and Power, 2018, Vol. 34 (2), pp. 460-468. doi: 10.2514/1.B36640, ISSN 0748-4658 (print) or 1533-3876.

(11)  Pretorius HJ., Mahmood GI., and Meyer JP., “Static pressure characteristics in a pin-fin channel with shaped cylindrical pins,” paper number,” ASME J. Fluid Engineering, 2017, Vol. 39, pp. 0911041-0911045, doi: 10.1115/1.4036671.

(12)  Mahmood, G.I., Simonson, C., and Besant, R.W., “Experimental Pressure Drop and Heat Transfer in a Rectangular Channel with a Sinusoidal Porous Screen,” ASME J. Heat Transfer, Vol. 137(042601), pp. 1-11. APRIL, 2015.

(13)  Ge G., Mahmood G.I., Moghaddam D.G., Simonson C.J., Besant R.W., Hanson S., Erb B., Gibson P.W., “Material Properties and Measurements for Semi-permeable Membranes Used in Energy Exchangers,” J. Membrane Science, Vol. 453, pp. 328-336, 2014.

(14)  Meyers B.C., Snedden G.C., Meyer J.P., Roos T.H., Mahmood., G.I., “Three-component Particle Image Velocimetry in a Generic Can-type Gas Turbine Combustor,” IMechE J. Power Energy, 226(7), 2012, pp. 892-906.

(15) Mahmud, K., Mahmood, G.I., Simonson, C., and Besant, R.W., “Performance testing of counter cross-flow run-around membrane energy exchanger (RAMEE) system for HVAC applications,” J. Energy & Buildings, Vol. 42, 2010, pp. 1139–1147.

(16)   Vali, A., Simonson, C.J., Besant, R.W., Mahmood., G.I., “Numerical Model and Effectiveness Correlations for a Run-Around Heat Recovery System with Combined Counter and Cross Flow Exchangers,” Intl J. Heat Mass Transfer, Vol. 52, 2009, pp. 5827–5840.

(17)  Mahmood, G.I. and Acharya, S., “ Experimental Investigation of Secondary Flow Structure in a Blade Passage With and Without Leading Edge Fillets”, ASME Trans. J. Fluids Engineering, v. 129, No. 3, pp. 253-262, 2007.

(18)  Mahmood, G.I., Gustafson, R.,  and Acharya, S., “Experimental Investigation of Flow Structure and Nusselt Number in a Low Speed Linear Blade Passage With and Without Leading Edge Fillets”,  ASME Trans. J. Heat Transfer, Vol. 127, pp. 499-512, 2005.

(19)  Acharya, S., Zhou, F., Lagrone, J., Mahmood, G.I., and Bunker, R.S., “Latticework (Vortex) Cooling Effectiveness: Rotating Channel Experiments”, accepted for publication, ASME Journal of Turbomachinery,  vol. 127, no.3, pp.471-478, JUL 2005.

(20)  Won, S.Y., Mahmood, G.I., and Ligrani, P.M., “Spatially-Resolved Heat Transfer and Flow Structure in a Rectangular Channel With Pin Fins,” International Journal of Heat and Mass Transfer, 47 (8-9), pp.1731-1743, APR 2004.

(21)  Ligrani, P.M. and Mahmood, G.I., “Variable Property Nusselt Numbers in a Channel With Pin-Fins”, AIAA Journal of Thermophysics and Heat Transfer, Vol. 17, No.1, 2003, pp. 103-111.

(22)  Won, S.Y., Mahmood, G.I., and Ligrani, P.M., “Flow Structure and Local Nusselt Number Variations in a Channel with Angled Crossed-Rib Turbulators”, International Journal of Heat and Mass Transfer, 46 (17), pp.3153-3166, AUG 2003.

(23)  Mahmood, G.I., Ligrani, P.M., and Chen, K., “Variable Property and Temperature Ratio Effects on Nusselt Numbers in a Rectangular Channel with 45 deg Angled Rib Turbulators”, ASME Transactions- Journal of Heat Transfer, 125 (5), pp.769-778, OCT 2003.

(24)  Ligrani, P.M. and Mahmood, G.I., “Spatially-Resolved Heat Transfer and Friction Factors in a Rectangular Channel with 45 deg Angled Rib Turbulators”, ASME Transactions-Journal of Turbomachinery, 125(3), pp.575-584, JUL 2003.

(25)  Mahmood, G.I. and Ligrani, P.M., “Heat Transfer in a Dimpled Channel: Combined Influences of Aspect Ratio, Temperature Ratio, Reynolds Number, and Flow Structure,” International Journal of Heat and Mass Transfer, 2001.

(26)  Ligrani, P.M., Harrison, J.L., Mahmood, G.I., and Hill, M.L., “Flow Structure Due to Dimple Depressions on a Channel Surface,” Journal of Physics of Fluids, Vol. 13, No.11, November 2001.

(27)  Ligrani, P.M., Mahmood, G.I., Harrison, J.L., Clayton, C.M., and Nelson, D.L., “Flow Structure and Local Nusselt Number Variations in a Channel With Dimples and Protrusions on Opposite Walls,” International Journal of Heart and Mass Transfer, 44, pp. 4413-4425, 2001.

(28)  Mahmood, G.I., Sabbagh, M.Z., and Ligrani, P.M., “Heat Transfer in a Channel With Dimples and Protrusions on Opposite Walls,” AIAA Journal of Thermophysics and Heat Transfer, Vol. 15, No.3, July-September 2001.

(29  Mahmood, G.I., Hill, M.L., Nelson, D.L., Ligrani, P.M., Moon, H.-K., and Glezer, B., “Local heat transfer and flow structure on and above a dimpled surface in a channel,” ASME Transactions- Journal of Turbomachinery, Vol. 123, January 2001.

 

Book chapters:

BOOK CHAPTER ON TURBOMACHINERY: Acharya, S. and Mahmood, G.I., “Turbine Blade Aerodynamics,” DOE Gas Turbine Handbook, NETL of the US Department of Energy, 2007, Ch. 4.3: p. 363-388.

 

Conference publications:

(1) Huyssen B.B., Mahmood G.I., “Effects of Cylindrical-Hole Shape and Fillet on Flow and Temperature Fields in Vane Cascade with Endwall Film-Cooling,” paper no. GT2020-14099, Proc. ASME Turbo Expo 2020, Sept. 21-25.

(2) Shote S.A., Mahmood G.I., and Meyer J.P., “Endwall Adiabatic Film-cooing Effectiveness with Upstream Film Cooling Schemes in a Filleted Vane Cascade,” Proceedings, 14th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics (HEFAT 2019), pp. 510-523, July 22-24, 2019, Wicklow, Ireland.

(3) Huyssen B., Mahmood G.I., and Shote A, “Flow-fields for Upstream Film Cooling Configuration in a Vane Cascade,” Proceedings, 14th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics (HEFAT 2019), pp. 730-736, July 22-24, 2019, Wicklow, Ireland.

(4) Mahmood G.I. and Aasa S., “Internal groove influenced thermohydraulic performance on an air-channel,” FEDSM2018-83236, Proceedings ASME 2018 5th Joint US-European Fluids Engr Summer Conf, July 15-20, 2018, Montreal, Canada.  doi:10.1115/FEDSM2018-83236, ISBN: 978-0-7918-5155-5.

(5) Mahmood G.I. and Arnachellan K, “Flow-Field in a Linear Vane Cascade with Endwall Fillet and Film-Cooling,” FEDSM2018-83140, Proceedings ASME 2018 5th Joint US-European Fluids Engr Summer Conf, July 15-20, 2018, Montreal, Canada. doi:10.1115/FEDSM2018-83140, ISBN: 978-0-7918-5156-2.

(6) Aasa S.A. and Mahmood G.I., “EXPERIMENTAL PRESSURE PENALTY AND HEAT TRANSFER IN AN AIR CHANNEL WITH GROOVED WALL,” International Conference on Sustainable Energy, 6th world sustainable energy forum, Vienna, Austria, 28 October 2016.

(7) Mahmood G.I. and Acharya S., “Effects of Blade Leading Edge Fillet on Near Wall Pressure & Heat Transfer in a Linear Turbine Cascade,” IMECE2014-39768, ASME2014 IMECE, Montreal, Canada, Nov., 2014.

(8) Mahmood G.I. and Acharya S., “Blade and Vane Leading Edge Fillet on Endwall Cooling in Linear Turbine Cascades,” IHTC15-9553, 15th Intl. Heat Transfer Conference, Kyoto, Japan, Aug., 2014.

(9) Pretorius H.J.,  Mahmood G.I. and Meyer J.P., “Pressure Drop Along a Channel with Modified Short Pin-Fins,” 10th Intl. Conf. on Heat Trans., Fluid Mech. and Thermodynamics, Florida, USA, July, 2014.

(10)  Roux S.M., Mahmood G.I. and Meyer J.P., “Modified Endwall Fluid Flow in a Dimpled Pin fin Array for Heat Transfer Enhancement,” IHTC15-9230, 15th Intl. Heat Transfer Conference, Kyoto, Japan, Aug., 2014.

(11)  Roux S.M., Mahmood G.I., and Meyer J.P., “Flow Field Around Dimpled Short Pin-Fins in a Staggered Array,” 29th Congress of Intl. Council of Aeronautics Science, St. Petersburg, Russia, Sept. 2014.

(12)  Moghaddam D.G., Mahmood G.I., Gaoming G., Bolster J., Besant R., and Simonson C.J.,”Steady-state Performance of a Prototype (200 CFM) Liquid-to-Air Membrane Energy Exchanger (LAMEE) Under Summer and Winter Test Conditions,” HT2013-17135, Proc. ASME 2013 Summer Heat Transfer Conf., Minnesota, USA, July 2013.

(13)  Nagar R.K., Meyer J.P., Alam Md.M., Spedding G.R., and Mahmood G.I., “The Turbulent Wakes of Smooth and Dimpled Pin-fins,” AIAA ISABE-2013-1221, Int. Symp. Air Breathing Engines, Busan, S. Korea, Sep. 2013.

(14)  Roux S.M., Meyer J.P., Mahmood G.I. and Mahbub A., “Heat Transfer in a Dimpled Short Pin-fin Array,” Poster presentation, 8th World Cong. on Exp. Heat Tran. Fluid Mech. Thermody, Lisbon, Portugal, June, 2013.

(15)  Mahmood G.I. and Simonson C.J., “Frosting Conditions for an Energy Wheel in Laboratory Simulated Extreme Cold Weather,” 7th Intl. Cold Climate HVAC Conf., Calgary, Canada, Nov., 2012.

(16)  Meyers, BC, Snedden, GC, Meyer, JP, Roos TH and Mahmood GI. (2011), “Experimental results showing the internal three-component velocity field and outlet temperature contours for a model gas turbine combustor”. International Symposium on Air Breathing Engines, Gothenburg, Sweden, September, 2011.

(17)  Meyers, BC, Snedden, GC, Meyer, JP, Roos TH and Mahmood GI. (2009). Threedimensional particle image velocimetry in a generic can-type gas turbine combustor. 19th Conf. International Soc. Air Breathing Engines, Montreal, Canada, September, 2009.

(18) Mahmood, G.I., Gustafson, R., and Acharya, S., “Aerodynamics and Cooling Effectiveness on a Non-Axisymmetric Endwall,” ASME Proc. Turbo Expo 2009, Orlando, Florida, GT2009-60236, June, 2009.

(19) Mahmood, G.I., Saha, A.K., and Acharya, S., “Endwall Flow Field and Film Cooling in a High Speed Linear Vane Cascade,” 6th HEFAT International Conference 2008, Pretoria, South Africa.

(20) Mahmood, G.I. and Smith, D.R., “Proportional Aerodynamic Control on a UAV Model Using Synthetic Jets,” AIAA-2007-3851, Session:FD-2, 37th AIAA Fluid Dynamics Conference, Miami, Florida, 25-28 June 2007.

(21) Mahmood, G.I., and Acharya, S., “Measured Endwall Flow and Passage Heat Transfer in a Linear Blade Passage With Endwall and Leading Edge Modifications,” ASME Proc. Turbo Expo 2007, Montreal, Canada, GT2007-28179, May 14-16, 2007.

(22) Gustafson, R., Mahmood, G.I., and Acharya, S., “Aerodynamic Measurements in a Linear Turbine Blade Passage with Three-Dimensional Endwall Contouring,” ASME Proc. Turbo Expo 2007, Montreal, Canada, GT2007-28073, May 14-16, 2007.

(23) Gustafson, R., Mahmood, G.I., and Acharya, S., “Flow Field in a Film-Cooled Three-Dimensional Contoured Endwall Passage: Aerodynamic Measurements”, ASME Proc. Turbo Expo 2007, Montreal, Canada, GT2007-28154, May 14-16, 2007.

(24) Saha, A.K., Mahmood, G.I., and Acharya, S., “The Role of Leading-Edge Contouring on End-wall Flow and Heat Transfer: Computations and Experiments,” IGTI conf. proceedings, Spain 2006, GT2006-91318.

(25) Acharya, S., Zhou, F., Lagrone, J., Mahmood, G.I., and Bunker, R.S., “Latticework (Vortex) Cooling Effectiveness: Rotating Channel Experiments”, International Gas Turbine and Aeroengine Technical Congress, Exposition, and Users Symposium, Austria, 2004.

(26) Ligrani, P.M. and Mahmood, G.I., “Spatially-Resolved Heat Transfer and Friction Factors in a Rectangular Channel with 45o Angled Rib Turbulators Channel”, 47th Gas Turbine and Aeroengine Technical Congress, Exposition, and Users Symposium, Finland, May 2002.

(27) Mahmood, G.I., Hill, M.L., Nelson, D.L., Ligrani, P.M., Moon, H.-K., and Glezer, B., “Local heat transfer and flow structure on and above a Dimpled surface in a channel”, 45th Gas Turbine and Aeroengine Technical Congress, Exposition, and Users Symposium, Munich, Germany, May 2000.

National Research Foundation (NRF) of South Africa.

Reviewer: ASME transaction J. Heat Transfer, J. Energy & Buildings, Int. J. Heat Mass Transfer, J. Thermal Engineering, J. thermal Sc Engineering, J. Exp. Thermal & Fluid Sciences.

Research links:

ORCID record:  https://orcid.org/0000-0002-3255-5700

Google scholar profile: https://scholar.google.com/citations?hl=en&user=HCRwM7MAAAAJ

Scopus profile:  http://www.scopus.com/authid/detail.url?authorId=6603047359

 

Past research associations:

NRF  (South Africa) Rating C2, 2021-2026.

Best paper award from the ASME Turbo Expo 2006 by ASME Heat Transfer Committee, GT2006-91318, “The Role of Leading-Edge Contouring on End-Wall Flow and Heat Transfer: Computations and Experiments.” (Saha, Mahmood, and Acharya).

 

RESEARCH FUNDS

NRF-Incentive funding for rated researcher, ZAR 30,000 (2021).

NRF-Incentive funding for rated researcher, ZAR 240,000 (2014-2020).

NRF-Competitive programme for rated researcher, ZAR 480,000 (2014-2016).

RDP-University of Pretoria, ZAR 40,000 (2013).

EIRT-University of Pretoria, ZAR 100,000 (2014).

ARMSCOR-CSIR, ZAR 260,000 (2014-2015).

ARMSCOR-CSIR, ZAR 130,000 (2016).

Name of employer

Capacity and/or type of work

Period

From mm//yy to mm//yy

Prince Mohammad Bin Fahd University, Saudi Arabia

Assistant Professor, Mechanical Engr

Sept 2022 - Present

Univ. of Pretoria, South Africa

Senior Lecturer (Mech. & Aero. Engr.)

Feb 2013 – July 2022

Venmar CES, Saskatoon, Canada

R&D Design Engineer

April 2012 – Dec 2012

Univ. of Saskatchewan, Canada

Research Engineer (Mech. Engr.)

Jan 2009 – Dec 2011

Univ. of Pretoria, South Africa

Senior Lecturer (Mech. & Aero. Engr.)

Mar 2007 – Nov 2008

Univ. of Wyoming, USA

Postdoc Researcher (Mech. Engr.)

Jan 2006 – Dec 2006

Univ. of Louisiana, USA

Postdoc Researcher (Mech. Engr.)

May 2002 – Dec 2005

Columbia Univ. of New York, USA

Lecturer (Mech. Engr.)

Jan 2001 – Dec 2001

 

Course

Level

Self developed

(Yes or No)

Aerodynamics

4th Yr. undergraduate, Univ. of Utah (1999)

Yes

Mechanical Engr. Lab 3

3rd Yr. undergraduate, Columbia Univ. (2001)

Yes

Mechanical Engr. Lab 4

4th Yr. undergraduate, Columbia Univ. (2001)

Yes

Advanced Fluid Mechanics

Postgraduate, Columbia Univ. (2001)

Yes

Advanced Heat Transfer

Postgraduate, Columbia Univ. (2001)

Yes

Thermal Machines

4th Yr. undergraduate, Univ. of Pretoria (2007, 2008)

Yes

Fluid Machines

4th Yr. undergraduate, Univ. of Pretoria (2007, 2008)

Yes

Thermal & Fluid Machines

4th Yr. undergraduate, Univ. of Pretoria (2013- 2022)

Yes

Thermoflow

Postgraduate, Univ. of Pretoria (2014, 2015)

In cooperation with Dr. S Mohsen

Fluid Mechanics

Postgraduate, Univ. of Pretoria (2014-2022 )

Yes

Advanced Fluid Mechanics

Postgraduate, Univ. of Pretoria (2017- 2018 )

Yes

Thermodynamics II

Undergraduate, Prince Mohammad Fahd Univ. (2022, 2023)

In cooperation with Dr. Esam

Heat Transfer

Undergraduate, Prince Mohammad Fahd Univ. (2022, 2023)

In cooperation with Dr. Esam

Thermodynamics I

Undergraduate, Prince Mohammad Fahd Univ. (2023-present)

 

Power Generation

Undergraduate, Prince Mohammad Fahd Univ. (2024-present)

 

 

Fluid dynamics and heat transfer in the gas turbine passages, heat exchangers, solar panels, and electronic and battery cooling channels.

Special interests in the aerodynamic control of UAV objects, vapor transfer through semi-permeable membranes, applications of fluidic actuators, non-intrusive experimental techniques for heat transfer.

Associate Member of ASME, Associate Member of Institute of Engineers (Bangladesh).