+966 13 849 4398
aelwahed@pmu.edu.sa
S035
Dr Ali El Wahed is currently a Professor in Mechanical Engineering at Prince Mohammad Bin Fahd University. He was awarded his PhD degree in Mechanical Engineering by the University of Liverpool in 1991. Dr El Wahed has demonstrated outstanding leadership within teaching and learning, research, and management throughout his 32 years academic experience at the Universities of Liverpool and Dundee, UK. He has been active in various areas of research, especially in Smart Materials, Applied Electrostatics and Fluid Flowmetering, which have been supported by several research grants. He has collaborated with world-class companies such as Ford Motor Company, Nippon Shokubai, British Aerospace and Bayer A.G. on the design and modelling of novel smart fluid devices in addition to his work on electrostatic spraying and deposition systems in collaboration with Kellogg’s, Jacobs Bakery and Consort Precision Diamond, and his model testing of large structures in collaboration with Parkman and Bingham Cotterell. Dr El Wahed has carried out several administrative roles, the most recent was his role as the Head of Mechanical and Electronic Engineering Department at the University of Dundee. Dr El Wahed is a member of the Institution of Mechanical Engineers (IMechE) and the Institute of Physics (IoP) and also a member of review panels for several research councils in addition to his recent Editorial Board membership of the Journal of Advances in Mechanical Engineering.
PhD, Mechanical Engineering, University of Liverpool, United Kingdom, 1988-91 (project was sponsored by Foxboro Co, USA and British Aerospace, UK)
BSc (Honours, First Class), Mechanical Engineering, University of Basrah, Iraq, 1982-86
Selected Publications
(a) Journal Publications
(1) Wang, H.C. and El Wahed, A.K., “Development of a novel latching-type electromagnetic actuator for applications in minimally invasive surgery”, Actuators, Vol. 9, Issue 2, 2020.
(2) El Wahed, A.K., “A novel hydraulic actuation system utilizing magnetorheological fluids for single-port laparoscopic surgery applications”, Materials, Vol. 13, Issue 6, 2020, 10.3390/ma13061380.
(3) Wang, H.C. and El Wahed, A.K., “The performance of a novel latching-type electromagnetic actuator for single-port laparoscopic surgery”, J. Modern Physics, Vol.10, No.14, pp. 1659-1673, 2019.
(4) El Wahed, A.K. and Wang, H.C, “Performance evaluation of a magnetorheological fluid damper using numerical and theoretical methods with experimental validation”, Frontiers in Materials: Smart Materials, DOI: 10.3389/fmats.2019.00027, pp. 1-13, 2019.
(5) El Wahed, A.K., Balkhoyor, L. and Wang, H.C., “The design and performance of a smart ball-and-socket actuator”, International Journal of Applied Electromagnetic and Mechanics, DOI: 10.3233/JAE-170039, pp. 1-16, 2019.
(6) El Wahed, A.K. and Balkhoyor, L., “The performance of a smart ball-and-socket actuator applied to upper-limb rehabilitation”, J. Intelligent Material Systems and Structures, Vol. 29, Issue 13, pp. 2811–2822, 2018.
(7) El Wahed, A.K. and Balkhoyor, L., “Characteristics of magnetorheological fluids under single and mixed modes”, Proc IMechE Part C: J. Mechanical Engineering Science, Vol. 231, No. 20, pp. 3798-3809, 2016.
(8) El Wahed, A.K. and Balkhoyor, L., “Magnetorheological fluids subjected to tension, compression and oscillatory squeeze input”, Smart Structures and Systems, Vol. 16, No. 5, 2015.
(9) El Wahed, A.K. and McEwan, C.A., “Design and performance evaluation of magnetorheological fluids under single and mixed modes”, Journal of Intelligent Material Systems and Structures, Vol. 22, Issue 7, pp. 631-643, 2011.
(10) El Wahed, A.K., “The influence of solid-phase concentration on the performance of electrorheological fluids in dynamic squeeze flow”, Materials and Design, Vol. 32, Issue 3, pp. 1420-1426, 2011.
(11) El Wahed, A.K., Sproston, J.L., R. Stanway and Williams, W., “An improved model of ER fluids in squeeze-flow through model updating of the estimated yield stress”, Journal of Sound and Vibration, Vol. 268, pp. 581-599, 2004.
(12) El Wahed, A.K., Stanway, R. and Sproston, J.L., “The influence of mechanical input amplitude on the dynamic response of an electrorheological fluid in squeeze flow”, Int. Journal Vehicle Design, Vol. 33, Nos. 1-3, pp. 153-170, 2003.
(13) El Wahed, A.K., Sproston, J.L. and R. Stanway, “The rheological characteristics of electrorheological fluids in dynamic squeeze”, Journal of Intelligent Material Systems and Structures, Vol. 13, No. 10, pp. 655-660, 2002.
(14) El Wahed, A.K., Sproston, J.L. and Schleyer, G.K., “Electrorheological and magnetorheological fluids in blast resistant design applications”, Materials and Design, Vol. 23, pp. 391-404, 2002.
(15) El Wahed, A.K. and Sproston, J.L., “The yield stress for an electrorheological fluid in squeeze”, ASME, FED, Vol. 255, pp. 173-178, 2000.
(16) El Wahed, A.K., Sproston, J.L. and Williams, W., “The effect of a time-dependent electric field on the dynamic performance of electrorheological fluid in squeeze”, J. Physics D: Applied Physics, Vol. 33, pp. 2995-3003, 2000.
(17) El Wahed, A.K. and Sproston, J.L., “The control of impulsive forces using electrorheological and magnetorheological fluids”, ASME, FED, Vol. 252, pp. 133-138, 2000.
(18) El Wahed, A.K., Sproston, J.L. and Schleyer, G.K., “A comparison between electrorheological and magnetorheological fluids subjected to impulsive loads”, J. Intelligent Material Systems and Structures, Vol. 10, No. 9, pp. 695-700, 1999.
(19) El Wahed, A.K., Sproston, J.L. and Stanway, R., “The performance of an electrorheological fluid in dynamic squeeze flow: The influence of solid phase size”, J. Colloid and Interface Science, Vol. 211, pp. 264-280, 1999.
(20) Sproston, J.L., El Wahed, A.K. and Stanway, R., “Electrorheological fluids in squeeze under AC and DC excitation”, International Journal of Modern Physics B, Vol. 13, Nos. 14, 15 & 16, pp. 1861-1869, 1999.
(21) El Wahed, A.K., Sproston, J.L. and Stanway, R., “The dynamic performance of an electrorheological fluid in squeeze flow under AC excitation”, J. Intelligent Material Systems and Structures, Vol. 9, No. 9, pp. 772-779, September 1998.
(22) El Wahed, A.K., Sproston, J.L. and Schleyer, G.K., “Electrorheological fluids applied to impulsive loads”, ASME, FED, Vol. 246, pp. 159-165, 1998.
(23) El Wahed, A.K., Sproston, J.L. and Stanway, R., “The performance of an electrorheological fluid in dynamic squeeze flow under constant voltage and constant field”, J. Physics D: Applied Physics, Vol. 31, no. 20, pp. 2964-2974, 1998.
(24) Sproston, J.L., El Wahed, A.K. and Stanway, R., “Electrorheological fluids under AC and DC excitation and the influence of solid phase size”, ASME, FED, Vol. 243, pp. 207-220, 1997.
(25) Stanway, R., Sproston, J.L. and El Wahed, A.K., “Applications of ER Fluids in vibration control: A survey”, Smart Materials and Structures, Vol. 5, No. 4, pp. 464-482, August 1996.
(26) El Wahed, A.K., Sproston, J.L. and Stanway, R., “The response of an electrorheological fluid to step change in applied voltage in dynamic squeeze flow”, ASME, AMD, Vol. 217, pp. 277-286, 1996.
(27) Sproston, J.L., El Wahed, A.K., Williams, W. and Stanway, R., “A comparison of the performance of ER Fluids in squeeze”, International Journal of Modern Physics B, Vol. 10, Nos. 23 & 24, pp. 3081-3091, 1996.
(28) El Wahed, A.K., Sproston, J.L., Williams, W. and Stanway, R., “A vibration damper using electrorheological fluids in squeeze; Experimental validation of theoretical models”, ASME, FED, Vol. 235, pp. 1-13, 1995.
(29) El Wahed, A.K., Johnson, M. and Sproston, J.L, “Numerical study of vortex shedding from different shaped bluff bodies”, Flow Measurements and Instrumentation, Vol. 4, No. 4, pp. 233-240, 1993. ISSN: 09555986
(30) El Wahed, A.K. and Sproston, J.L., “The influence of shedder shape on the performance of the electrostatic vortex flowmeter”, Flow Measurements and Instrumentation, Vol. 2, pp. 169-179, July 1991.
(31) Sproston, J.L., El Wahed, A.K. and Johnson, M.W., “An electrostatic vortex shedding meter”, Flow Measurements and Instrumentation, Vol. 1, No. 4, pp. 183-190, 1990.
(b) Refereed Conference Publications
(1) El Wahed, A.K., “Characteristics of electrorheological fluids under single and mixed modes”, AToMech1 2023, International Conference on Advanced Topics in Mechanics of Materials, Structures and Construction, Alkhobar, Saudi Arabia, 12-14 March 2023.
(2) El Wahed, A.K. and Wang, H.C., “CFD Simulation of a Smart Magnetorheological Fluid Actuator”, ACTUATOR18, 2018, Proceedings of the 16th International Conference on New Actuators & the 10th International Exhibition on Smart Actuators and Drive Systems, Bremen, Germany, 25-27 June 2018.
(3) Rabie, M.E. and El Wahed, A.K., “New Design of Smart Actuator for Colonoscope Navigation”, 15th Int. Workshop on Research and Education in Mechatronics (REM 2014), El Gouna, Egypt, 9 - 11 Sept. 2014.
(4) El Wahed, A.K. and McEwan, C, “Experimental and numerical assessments of magnetorheological fluids subjected to tension, compression and oscillatory squeeze input”, ACTUATOR12, 2012, Proc. 13th Int. Conf. New Actuators & 7th Int. Exh. Smart Actuators & Drive Systems, Bremen, Germany, June 18, 2012.
(5) El Wahed, A.K. and McEwan, C.A., “Design and performance evaluation of magnetorheological fluids under mixed mode”, ACTUATOR10, 2010, Proc. 12th Int. Conf. New Actuators & 6th Int. Exhibition on Smart Actuators and Drive Systems, Bremen, Germany, June 14-16, 2010.
(6) El Wahed, A.K., “Performance evaluation of electrorheological fluids under mixed shear and squeeze mode”, ACTUATOR08, 2008, Proc. 11th Int. Conf. on New Actuators & the 5th International Exhibition on Smart Actuators and Drive Systems, Bremen, Germany, June 9-11, 2008.
(7) El Wahed, A.K., “Homogeneous electrorheological fluids applied to vibration control”, Proceedings of ABCM Symposium Series in Bioengineering, Vol.1, Nov. 2006.
(8) El Wahed, A.K., “Homogeneous electrorheological fluids applied to vibration control”, Proc. TMSi 4, 4th Int. Conference on Technology Meets Surgery, June 5 - 6, 2006, Ninewells Hospital, Dundee, UK.
(9) El Wahed, A.K., “The effect of volume fraction of solids on the mechanical properties of ER fluids in dynamic squeeze”, Proceedings of TMSi 4, 4th International Conference on Technology Meets Surgery, June 5 - 6, 2006, Ninewells Hospital, Dundee, UK.
(10) El Wahed, A.K., “The influence of particle concentration on the response of electrorheological fluids in dynamic squeeze flow”, ACTUATOR06, 2006, Proc. 10th Int. Conf. New Actuators & 4th Int. Exhibition on Smart Actuators and Drive Systems, Bremen, Germany, June 14-16, 2006.
(11) El Wahed, A.K., “The characteristics of a homogeneous electrorheological fluid in dynamic squeeze”, ACTUATOR04, 2004, Proc. 9th Int. Conf. New Actuators & 3rd International Exhibition on Smart Actuators and Drive Systems, Bremen, Germany, June 14-16, 2004.
(12) Sproston, J.L., Yanyo, L.C., Carlson, J.D. and El Wahed, A.K., “Controllable fluids in 2002 – Status of ER and MR fluid technology”, ACTUATOR 2002, Proc. 8th Int. Conf. New Actuators & 2nd Int. Exhibition on Smart Actuators and Drive Systems, Bremen, Germany, June 10-12, 2002.
(13) El Wahed, A.K. and Sproston, J.L. and Stanway, R., “The rheology of electrorheological fluids in dynamic squeeze flow”, ACTUATOR 2002, Proc. 8th Int. Conf. on New Actuators & 2nd Inter. Exhibition on Smart Actuators and Drive Systems, Bremen, Germany, June 10-12, 2002.
(14) El Wahed, A.K. and Sproston, J.L., “The rheological properties of electrorheological fluids in squeeze flow under impulsive loading”, 1st International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, April 8-10, 2002, Kruger Park, South Africa.
(15) El Wahed, A.K., Stanway, R. and Sproston, J.L., “Electrorheological fluids in dynamic squeeze: an improved modelling technique with experimental validation”, SPIE’s Annual Int. Symp. Smart Structures and Materials, Vol. 4697, pp. 139-147, March 17-21, 2002, San Diego, USA.
(16) El Wahed, A.K. and Sproston, J.L., “The yield stress for an electrorheological fluid in squeeze”, ASME IMECE, New York, USA, November 11-16, 2001.
(17) El Wahed, A.K. and Sproston, J.L., “The rheological characteristics of electrorheological fluids in dynamic squeeze”, 8th International Conference on Electrorheological (ER) Fluids and Magneto-Rheological (MR) Suspensions, Nice, July 9-13, 2001.
(18) El Wahed, A.K. and Sproston, J.L., “Control of impulsive loads using electrorheological and magnetorheological fluids”, Paper 324-009, Twentieth IASTED International Conference on Modelling, Identification and Control (MIC 2001), 19-22 February 2001, Innsbruck, Austria.
(19) El Wahed, A.K. and Sproston, J.L., “The control of impulsive forces using electrorheological and magnetorheological fluids”, ASME IMECE, Orlando, Florida, USA, November 5-10, 2000.
(20) El Wahed, A.K. and Sproston, J.L., “A comparison of the performance of electrorheological and magnetorheological fluids subjected to impulsive loads”, ACTUATOR 2000, Proceedings of the 7th International Conference on New Actuators & International Exhibition on Smart Actuators and Drive Systems, Bremen, Germany, p. 50, June 19-21, 2000.
(21) El Wahed, A.K., Sproston, J.L. and Schleyer, G.K., “Electrorheological and magnetorheological fluids subjected to impulsive loading: An experimental investigation”, Paper 306-035, 19th IASTED International Conference on Modelling, Identification and Control, 14-17 February 2000, Innsbruck, Austria.
(22) El Wahed, A.K., Sproston, J.L. and Schleyer, G.K., “A comparison between electrorheological and magnetorheological fluids subjected to impulsive loads”, 7th International Conference on Electrorheological (ER) Fluids and Magneto-Rheological (MR) Suspensions, Hawaii, July 19-23, 1999.
(23) El Wahed, A.K., Sproston, J.L. and Schleyer, G.K., “Electrorheological fluid device subjected to impulsive loading”, ACTUATOR 98, Proceedings of the 6th International Conference on New Actuators, Bremen, Germany, p. 82, June 17-19, 1998.
(24) Sproston, J.L., El Wahed, A.K. and Stanway, R., “Electrorheological fluids in squeeze under AC and DC excitation”, Proceedings of the 6th International Conference on Electro-Rheological Fluids, Magneto-Rheological Suspensions and Their Applications, 22-25 July, Yonezawa, Japan, pp. 223-231, 1997.
(25) El Wahed, A.K., Sproston, J.L. and Stanway, R., “The performance of ER fluids in dynamic squeeze-flow mode: influence of particulate size”, Proceedings of the ASME Aerospace Division International Mechanical Engineering Congress and Exposition, Atlanta, Georgia, November 17-22, 1996.
(26) Sproston, J.L., El Wahed, A.K. and Stanway, R., “Electromechanical fluids in dynamic squeeze flow”, ICDL 1996, 12th IEEE International Conference on Conduction and Breakdown in Dielectric Liquids, Rome, Italy, pp. 515-519, July 15-19, 1996.
(27) El Wahed, A.K., Sproston, J.L. and Stanway, R., “Adaptive vibration control using an electrorheological squeeze-flow damper”, Proceedings of the Symposium on Smart Structures and Materials, 26-29 February 1996, SPIE 96, Vol. 2715, pp. 110-120, San Diego, California, USA.
(28) El Wahed, A.K., Sproston, J.L., Williams, W. and Stanway, R., “Vibration damper using electrorheological fluids in squeeze: Experimental validation of theoretical models”, Proc. of the 1995 ASME Inter. Mechanical Engineering Congress and Exposition - San Francisco, USA, 12-17 Nov 1995.
(29) El Wahed, A.K., Sproston, J.L. and Stanway, R., “Electro-rheological fluids in squeeze-flow: A comparison of experimental and theoretical results”, Symposium on Intelligent Structures and Vibrations, Boston, Massachusetts, 17-21 September, 1995.
(30) Sproston, J.L., El Wahed, A.K., Williams, W. and Stanway, R., “A comparison of the performance of ER Fluids in squeeze”, 5th International Conference on Electro-Rheological Fluids, Magneto-Rheological Suspensions and Associated Technology, Sheffield, 10-14 July 1995, U.K.
(31) Sproston, J.L., El Wahed, A.K. and Stanway, R., “Electrorheological fluids in squeeze-flow”, Particle Technology and Processing of Soft Solids, Imperial College, London, April 1995.
(32) Sproston, J., El Wahed, A.K. and Stanway, R., “Electromechanical phenomena in complex fluids”, Spring Meeting of Materials Research Society, San Francisco, pp.242-251, Apr. 1995.
(33) Sproston, J.L., El Wahed, A.K. and Stanway, R., “Vibration control using electrically active fluid”, Fourteenth IASTED International Conference on Modelling, Identification and Control, 20-22 February 1995, IGLS, Austria.
(i) Smart materials, including smart fluids (electrorheological fluids and magnetorheological suspensions) and electroactive polymers, and their engineering applications.
(ii) Fluid dynamics including fluid flow metering, control and pressure relief valves, and computational fluid dynamics (CFD modelling).
(iii) Applied electrostatics including electrostatic spraying, deposition and separation.