Publications

Refereed Journal papers

  • A. Mukhaimer, Abdelsalam Al-sarkhi, M. El Nakla, Wael H. Ahmed, Luai Al-Hadhrami, Pressure drop and flow pattern of oil–water flow for low viscosity oils: Role of mixture viscosity, International Journal of Multiphase Flow, Vol. 73, pp. 90-96, 2015.
  • Wael H. Ahmed, Hassan M. Badr and Abdelsalam Al-Sarkhi, Experimental Investigation of Oil-Water Separation Using a Controlled Tee Junction, submitted to Journal of Petroleum Science and Engineering, 2015.
  • P. Hanafizadeh, J. Eshraghi, E. Kosari, and Wael H. Ahmed, The Effect of Gas Properties on Bubble Formation, Growth and Detachment, Available online, Particulate Science and Technology: An International Journal, 2015
  • Abdelsalam Al-sarkhi, A. Mukhaimer, M. El Nakla, Wael H. Ahmed, Luai Al-Hadhrami, Effect of Water Salinity on Flow Pattern and Pressure Drop in Oil-Water Flow, Journal of Petroleum Science and Engineering, Vol. 128, pp. 145-149, 2015.
  • M.A. Nemitallah, R. Ben-Mansour, M.A. Habib, Wael H. Ahmed, I.H. Toor, Z.M. Gasem and H.M. Badr, Numerical Investigations of Solid Particle Erosion Downstream of an Orifice, AMSE Fluids Engineering, Vol. 137, No. 2, 021302, 2015.
  • Jahanzib Malik, Ihsan H. Toor, Wael H. Ahmed, Zuhair M. Gasem, Mohamed A. Habib, Rachid Ben-Mansour, and Hassan M. Badr, “Evaluating the Effect of Hardness on Erosion Characteristics of Aluminum and Steels”, Journal of Materials Engineering and Performance, Vol. 23, Issue 6, pp. 2274-2282, 2014.
  • Wael H. Ahmed, Mufatiu M. Bello, A. Al-Sarkhi, M. El Nakla, and Hassan M. Badr, “Experimental Investigation of Flow Accelerated Corrosion under Two-phase Flow Conditions”, Nuclear Engineering and Design, Vol. 267, pp. 34-43, 2014.
  • M. El Nakla, Wael H. Ahmed, and A. Al-Sarkhi, “Effect of Carbon Nanotube Additive on the Thermal Performance of a Horizontal V-Grooved Heat Pipe”, Journal of Nano Research, Vol. 26, pp. 83-86, 2014.
  • Mohamed A. Habib, Rached Ben Mansour, Wael H. Ahmed, Abdullah M. Al-Otaibi, A. Al-Sarkhi, and Zuhair Gasem “Oil-Water Two-Phase Flow Redistribution in Horizontal and Near Horizontal Pipelines”, International Journal of Fluid Mechanics Research, Vol. 40, No. 6, pp. 494-511. 2013.
  • M. El Nakla, Wael H. Ahmed, and A. Al-Sarkhi, “Application of the Critical Heat Flux Look-Up Table to Large Diameter Tubes”,  Journal of Science and Technology of Nuclear Installations, DOI.org/10.1155/2013/868163, 2013.
  • Wael H. Ahmed, Mufatiu M. Bello, A. Al-Sarkhi, and M. El Nakla, “Flow and Mass Transfer Downstream of an Orifice under Flow Accelerated Corrosion Conditions”, Nuclear Engineering and Design, Vol. 252, pp. 52-67, 2012.
  • Wael H. Ahmed, Atef M. Mohany, and Yehia A. Khulief, “An Innovative Vibration Sensor for Flow Accelerated Corrosion Measurement”, Recent Patent on Corrosion Science, Vol. 2, pp. 61-65, 2012.
  • M. Al-Gammal, Wael H. Ahmed, and C. Y. Ching, "Investigation on Wall Mass Transfer Characteristics Downstream of an Orifice", Nuclear Engineering and Design, Vol. 242, pp. 353-360, 2012.
  • Wael H. Ahmed, and Hassan M. Badr, “Dual-injection Airlift Pumps: an Enhanced Performance”, Particulate Science and Technology, Vol. 30, pp. 497–516, 2012.
  • Wael H. Ahmed, “Experimental investigation of Air-Oil Slug Flow Using Capacitance Probes, Hot-Film Anemometer, and Image Processing”, International Journal of Multiphase Flow, Vol. 37, No. 8, pp. 876-887, 2011.
  • A. Al-Sarkhi, M. El Nakla, and Wael H. Ahmed, “Friction Factor Correlations for Gas-Liquid/Liquid-Liquid Flows with Drag-Reducing Polymers in Horizontal Pipes”, International Journal of Multiphase Flow, Vol. 37, No. 5, pp. 501-506, 2011.
  • Wael H. Ahmed, “Evaluation of the Proximity Effect on Flow Accelerated Corrosion”, Annals of Nuclear Energy, Vol. 37, pp. 598-605, 2010.
  • Wael H. Ahmed, M. El Nakla, and B. Ismail, “Towards Understanding the Critical Heat Flux for Industrial Applications”, International Journal of Multiphase Flow, Vol. 36, No. 3, pp. 153-165, 2010.
  • A. A. Nassr, W. W. El-Dakhakhni, and Wael H. Ahmed, “Biodegradation and De-bonding Detection of Composite-wrapped Wood Structures”, Journal of Reinforced Plastics and Composites, Vol. 29,  No. 15, pp. 2296-2305, 2010.
  • B. Ismail, Wael H. Ahmed, “Thermoelectric Power Generation using Waste-Heat Energy as an Alternative Green Technology” Recent Patents in Electrical & Electronics Engineering Journal, Vol. 2, pp 27-39, 2009.
  • Kassab, S. Z., Kandil, H. A., Warda, H. A., and Wael H. Ahmed, “Air-Lift Pumps Characteristics under Two-Phase Flow Conditions” ”, International Journal of Heat and Fluid Flow, Vol. 30, pp. 88-98, 2009.
  • Amr A. Nassr, Wael H. Ahmed, and W. W. El-Dakhakhni, “Coplanar-Capacitance sensors for detecting water intrusion in composite structures”, Measurement Science and Technology. Vol. 19 No. 7, 075702, 2008.
  • Wael H. Ahmed, and B. Ismail, “Innovative Techniques for Two-Phase Flow Measurements", Recent Patents in Electrical & Electronic Engineering Journal, Vol. 1, pp. 1-13, 2008.
  • Wael H. Ahmed, C.Y. Ching and M. Shoukri, “Development of Pressure, Void Fraction and Liquid Turbulence for Air-Oil Two-Phase Flow across Sudden Expansions”, International Journal of Heat and Fluid Flow, Vol. 29, pp. 194-206, 2008.
  • Wael H. Ahmed, C.Y. Ching and M. Shoukri, “Pressure Recovery of Two-Phase Flow across Sudden Expansions”, International Journal of Multiphase Flow, Vol. 33 pp. 575–594, 2007.
  • Kassab, S. Z., Kandil, H. A., Warda, H. A., and Wael H. Ahmed, “Experimental and analytical investigations of airlift pumps operating in three-phase flow” Chemical Engineering Journal, Vol. 131 pp. 273–281, 2007.
  • Wael H. Ahmed, “Capacitance Sensors for Void-Fraction Measurements and Flow-Pattern Identification in Air–Oil Two-Phase Flow” IEEE sensors Journal, Vol. 6 No. 5, pp. 1153-1163, 2006.
  • Wael H. Ahmed, C.Y. Ching and M. Shoukri, “Local Void Fraction and Liquid Turbulence Measurements of Two-Phase Flow Downstream of a Sudden Expansion” Trans. Inst. of Fluid Flow Machinery (118), 3-14, 2006.
     

Patents

  • Wael H. Ahmed, Amro Al Qutub, Hassan Badr, “Multistage Pulsating Airlift Pump”, US. patent 872,129,7B1, 2014.
  • Wael H. Ahmed, Abdelsalam Al Sarkhi, and Meamer El Nakla, “Gas-Oil-Water Multiphase Flow Detection”, US. Patent 20140060204 A1, 2014.
  • Yehia A. Khuelif, and Wael H. Ahmed, “Two-Phase Flow Sensor Using Cross Flow Induced Vibration” Patent Pending, US. 14/258148, 2014.
  • Hassan M. Badr, and Wael H. Ahmed, “Dual-injection Airlift Pumps”, US. Patent 8,596,989 B2, 2013.
  • Wael H. Ahmed, Hassan Badr, Amro Al Qutub, “Airlift Pump with Helical Flow Pattern”, Patent pending, US. 13/910,106, 2013.
  • Wael H. Ahmed, Abdelsalam Al Sarkhi, Meamer El Nakla, Hassan Badr, “Heat Transfer-Based Device for Two-phase flow Measurements”, Patent Pending, US. 14/023,451, 2013.
     

Recent Conference Publications

  • Jahanzib Malik, Ihsan H. Toor, Wael H. Ahmed, Zuhair M. Gasem, and Hassan M. Badr, “Corrosion-Enhanced Erosion behavior of Carbon Steel AISI 1020 and Stainless Steel AISI 316”, NACE International Corrosion Conference, San Antonio, Texas, US. 9-13 March, 2014.
  • M. El Nakla, Wael H. Ahmed and A. Al-Sarkhi, “Effect of Carbon Nanotube Additive on the Thermal Performance of a Horizontal V-Grooved Heat Pipe”, 9th International Conference on Diffusion in Solid and Liquid, Madrid, Spain, 24–28 June 2013.
  • Wael H. Ahmed and Hassan Badr, “Experimental Investigation of Oil-Water Separation Using an Innovative Tee-Separator”, 9th International Conference on Diffusion in Solid and Liquid, Madrid, Spain, 24–28 June 2013.
  • Wael H. Ahmed, M. El Nakla, and A. Al-Sarkhi, Hassan Badr “On the Development of Integrated Multiphase Flow Sensors”, 7th International Conference on Computational and Experimental Methods in Multiphase and Complex Flow, A Coruña, Spain, 2–5 July, 2013.
  • Wael H. Ahmed, Mufatiu M. Bello, M. El Nakla, and A. Al-Sarkhi, “Effect of Two-Phase Flow On Flow Accelerated Corrosion (FAC)”, 23rd International Symposium on Transport Phenomena, Auckland, New Zealand, 19–22 November 2012.
  • Wael H. Ahmed, A. Al-Sarkhi, M. El Nakla, and Mufatiu M. Bello, “Effect of Mass Transfer On Flow Accelerated Corrosion Downstream an Orifice”, The World Congress on Engineering and Technology, Shanghai, China, Oct. 28 - Nov. 2, 2011.
  • Mufatiu, M. Bello, and Wael H. Ahmed, “On the Effect of Hydrodynamic Parameters on Flow Accelerated Corrosion through Pipes with Sudden Area Change”, 21st International Symposium of Transport Phenomena, Kaohsiung City, Taiwan, Nov. 2-5, paper No. 113, 2010.
     

Industrial Technical Reports

  • Luai Al Hadrami, Abdelsalam Al Sarkhi, and Wael H. Ahmed, “Two-phase flow through annulus” ARAMCO Oil Company, Report Project No.  CER2386, 2014.
  • Wael H. Ahmed, “Trending Flow Accelerated Corrosion in CANDU Reactors” CANDU Owner Group Report No.  07-4065, 2008.
  • Wael H. Ahmed and Christopher S. Schefiski, “Review of the CHECWORKS Model and Design Basis for Darlington Nuclear Generating Station” AECL, 2006
  • Wael H. Ahmed, and C.Y. Ching, “Pressure Drop of Two-Phase Flow through a Pipe Restriction ", GasTOPS Ltd, report May 2005.
  • Wael H. Ahmed, C.Y. Ching and M. Shoukri, “Air-Oil Two-Phase Flow Characteristics through Horizontal Pipes with Sudden Expansions”, Pratt & Whitney Canada report Nov. 2002.
  • Wael H. Ahmed, C.Y. Ching and M. Shoukri, “Void Fraction Measurement Using Capacitance Sensors”, Pratt& Whitney Canada report May 2002.