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About Dr Yousef Faraj

Yousef completed his degree (BEng) in Chemical Engineering from the University of Tikrit and obtained his MSc (Eng) and PhD from the School of Chemical and Process Engineering/Institute of Particle Science and Engineering at the University of Leeds.

After completion of his PhD in 2013, he remained at the University of Leeds, where he worked for over six years as a Research Fellow with one of the world-leading research groups, On-line Instrumentation Laboratory (OLIL), led by Prof Mi Wang, later as a Multiphase Flow Research Consultant, providing advice related to multiphase flow characterisation, metering, research facility and instrumentations. As an active member of the Institute of Particle Science and Engineering, he developed an electrical resistance tomography-based method for slurry flow characterisation, a novel technique of solid-liquid and particulate flow measurement and visualisation, along with a novel platform for two-phase flow regime recognition (gas-liquid and solid-liquid) based on a dual-modality electromagnetic flowmeter and industrial tomography system.

Yousef has been closely working with a number of national and international industrial collaborators and academic institutions such as National Equipment Laboratory (TUV NEL-Glasgow), Schlumberger Gould Research (SGR-Cambridge), Industrial Tomography Systems Ltd. (ITS-Manchester), Shell Global Solutions International, Cranfield University, University of Cambridge, University of Huddersfield and Southwest Petroleum University (Chengdu-China), on various collaborative projects such as European Multiphase Flow Metrology in the Oil and Gas Sector (EMRP-a Joint Research Project-consortium comprised of seven industries and two academic institutions), Visualisation and Metering of Multi-phase Flow (VMMF) and Two/Three Phase Flow Visualisation and Metering Methods and Devices (FVMMD).  The latter two projects aim to develop a novel measurement and visualisation technology, which is currently at the stage of industrial testing, as a new generation of industrial multi-phase flow meter.

Later an interest in smart functional materials was sparked.  Yousef became highly fascinated by the intelligence of many interesting materials and their ability to sense their surroundings and respond accordingly. He joined a world-class research group, led by Professor Liang-Yin Chu, as an Associate Professor in the school of Chemical Engineering at Sichuan University (China) in 2017 and started working in the area of smart functional materials, secured several internal and external funding and led several funded projects, with the focus on the development of functional materials, particularly stimuli-responsive materials, which are able to change their shape, chemical or physical properties in real time in response to external stimuli such as temperature, electric or magnetic fields, pH and chemicals, for various applications such as selective detection and sensing, capture and separation.

During this time, Yousef also joined the School of Materials Engineering at Sichuan University-Pittsburg Institute as a PT Associate Professor (2018), as well as being involved in a number of multiphase flow metering related collaborative research projects with Chinese academic institutions such as Hebei University. He then joined the team in the Department of Chemical Engineering at the University of Chester as a Senior Lecturer in 2020.


SE4011 Materials Processing and Manufacture

SE5013 Separation Processes

SE6017 Process Design Principles


Yousef’s research is in the areas of chemical, process and materials engineering, in particular, multiphase flow characterisation, industrial process tomography, development of measurement techniques, as well as development of smart functional materials.

His current research interests include:

  • Multiphase Flows and Processes: The research here focuses on both experimental and theoretical modelling work to enable understanding and prediction of a wide range of industrially relevant 2-and 3-phase flow situations such as gas-liquid, solid-liquid, liquid-liquid and gas-liquid-liquid, which are commonly encountered in the petroleum industry, the chemical industry, in wastewater treatment, nuclear plants, mining and hydraulic conveying. The fundamental issues addressed here include the dynamics of particles in the carrier phase, phase interaction, interface phenomena and the effects of process parameters on the nature of multiphase and multicomponent systems.
  • Multiphase Flow Measurement Techniques and Sensors: The development of reliable, on-line, real-time measurement techniques and multiphase flow metering systems are another focus, which is vital in industrial practice for monitoring and optimisation of a range of industrial processes, as well as for validating the developed modelling tools.
  • Smart Functional Materials: The main focus here is on the design, synthesis, characterisation and application of smart materials and devices. We aim at rational integration of organic (polymeric) and inorganic materials to realise smart functional materials with unique properties for multifarious applications. The emphasis is placed upon integration of stimuli-responsive materials, which are able to change their shape, chemical or physical properties in real time in response to external stimuli such as temperature, pH, electric or magnetic field and chemicals. We actively explore emerging technological applications of these smart functional materials in areas such as selective detection and sensing, capture and separation.

Postgraduate Research Opportunities:

We welcome enquiries from motivated and qualified applicants from all around the world, who are interested in PhD study.

Published Work

Selected Publications
The following are selected publications.  For the full list of Yousef’s published scientific articles, please visit his profile on Google Scholar or Research Gate.

Five most recent selected publications

  • Zhao Q., Faraj Y., Liu L.Y., Wang W., Xie R., Liu Z., Ju X.J., Wei J., Chu L.Y., 2020. Simultaneous determination of dopamine, uric acid and estriol in maternal urine samples based on the synergetic effect of reduced graphene oxide, silver nanowires and silver nanoparticles in their ternary 3D nanocomposite. Microchemical Journal,158:105185.
  • Fang L., Zeng Q., Wnag F., Faraj Y., Zhao Y., Wei Z., Lang Y., Weil Z., 2020. Identification of two-phase flow regime using ultrasonic phased array. Flow Measurement and Instrumentation, 72: 101726.
  • Fang L., Wang S., Li S., Faraj Y., Tian J., Li X., 2020. Phase Content and Flow Measurement of Bubble Flow Based on New Experimental Pipeline. Flow Measurement and Instrumentation,13(2): 469-478.
  • Peng H.Y., Wang W., Xie R., Ju X.J., Liu Z., Faraj Y., Chu L.Y., 2020. Mesoscale regulation of droplet templates to tailor microparticle structures and functions. Particuology, 48:74-87. 
  • Chen Z.H., Liu Z., Hu J.Q., Cai Q.W., Li X.Y., Wang W., Faraj Y., Ju X.J., Xie R., Chu L.Y.*, 2020. β-Cyclodextrin-modified graphene oxide membranes with large adsorption capacity and high flux for efficient removal of bisphenol A from water. Journal of Membrane Science, 595: 117510.

Other Selected Publications

  • Fang L., Zeng Q., Faraj Y., Zhao N., Wei Z., Li X., 2019. Analysis of Chaos Characteristics of Gas-liquid Two-phase Flow Noise. Flow Measurement and Instrumentation, 65: 98-109.   
  • Zhang L.P., Liu Z., Faraj Y., Zhao Y., Zhuang R., Xie R., Ju X.J., Wang W., Chu L.Y., 2019. High-flux efficient catalytic membranes incorporated with iron-based Fenton-like catalysts for degradation of organic pollutants. Journal of Membrane Science, 573: 493-503. 
  • Cai Q.W., Ju X.J., Chen C., Faraj Y., Jia Z.H., Hu J.Q., Xie R., Wang W., Liu Z., Chu L.Y., 2019. Fabrication and flow characteristics of monodisperse bullet-shaped microparticles with controllable structures. Chemical Engineering Journal, 370: 925-937. 
  • Fang L., Wang P., Zeng Q., Li M., Li X., Wang M., Faraj Y., Wang Q., 2019. Measurement of Interphase Forces based on Dual-modality ERT Sensor in Horizontal Two-phase Flow Gas-water. Measurement, 136: 703-717. 
  • He F., Zhang M.J., Wang W., Cai Q.W., Su Y.Y., Liu Z., Faraj Y., Ju X.J., Xie R., Chu L.Y., 2019. Designable Polymeric Microparticles from Droplet Microfluidics for Controlled Drug Release. Advanced Materials Technologies, 11800687: 1-23.           
  • Liu Z., Faraj Y., Ju X.J., Wang W., Xie R., Chu L.Y., 2018. Nanocomposite Smart Hydrogels with Improved Responsiveness and Mechanical Properties: A Mini Review. Journal of Polymer Science, Part B: Polymer Physics, 56(19): 1306-1313.
  • Zhao Q., Xie R., Luo F., Faraj Y., Liu Z., Ju X.J., Wang W., Chu L.Y., 2018. Preparation of high strength poly(vinylidene fluoride) porous membranes with cellular structure via vapor-induced phase separation. Journal of Membrane Science, 549: 151-164.
  • Faraj Y., Wang M., Jia J., Wang Q., Xie C., Oddie G., Primrose K. Qui C., 2015. Measurement of Vertical Oil-in-water Two-phase Flow Using Dual-modality ERT/EMF System. Flow Measurement and Instrumentation, 46(Part B): 255-261. 
  • Faraj Y., Wang M., Jia J., 2015. Automated horizontal slurry flow regime recognition using statistical analysis of the ERT signal. Procedia Engineering, 102: 821-830. 
  • Wang M., Jia J., Faraj Y., Wang Q., Xie C., Oddie G., Primrose K., Qui C., 2015. A new visualization and measurement technology for water continuous multiphase Flows. Flow Measurement and Instrumentation, 46(Part B): 204-212. 

Selected Conference Papers

  • Liu L., Liu Z., Hanyu P., Zhao Q., Ju X., Faraj Y., Wang W., Xie R., Chu L.Y., 2019. Reduced Graphene-oxide modified, sponge-compositing phase change materials for fast solar-thermal conversion and and energy storage. In Abstracts of Papers of the American Chemical Society (vol.257). 1155 16th St, NW, Washington, DC 20036 USA: AMER CHEMICAL SOC. 
  • Karki B., Faraj Y., Wang M., 2016. Electrical Conductivity Based Flow Regime Recognition of Two phase Flows in Horizontal Pipeline. 8th World Congress on Industrial Process Tomography (WCIPT8), Iguassu Falls, Brazil.
  • Jia J., Wang M., Faraj Y., 2013. EIT Measurement of Full Void Fraction Range in Two-phase Flow. The 8th International Symposium on Measurement Techniques for Multiphase Flows, Guangzhou, China. 
  • Faraj Y., Wang M., 2011. Slurry flow regime and velocity profile visualisation in horizontal pipeline using Electrical Resistance Tomography (ERT). The 8th Pacific Symposium on Flow Visualisation and Image Processing (PSFVIP-8), Moscow, Russia.
  • Faraj Y., Wang M., 2012. ERT investigation on horizontal and vertical counter-gravity slurry flow in pipelines. 20th International Congress of Chemical and Process Engineering, Prague, Czech Republic.
  • Faraj Y., Wang M., Jia J., 2014. Automated horizontal slurry flow regime recognition using statistical analysis of the ERT signal. 7th World Congress on Particle Technology (WCPT7), Beijing, China.
  • Wang Q., Karki B., Faraj Y., Wang M., 2015. Improving Spatial and Temporal Resolution of Electrical Impedance Tomogram (EIT) by Partial Imaging with Limited Measurements (PILM). 7th International Symposium on Process Tomography (ISPT7), Dresden, Germany.


  • Wang M., Jia J., Faraj Y., and Wang Q., 2015. Tomography apparatus, multiphase flow monitoring system, and corresponding methods, PCT/GB2015/052672, US20170261357A1, EP3194085A1, CN107110677A, GB201416287D0.



  • PhD in Chemical Engineering, University of Leeds (EPSRC Funded Project)
  • MSc in Chemical Engineering, University of Leeds 
  • University of Leeds Teaching Award (ULTA)
  • BEng in Chemical Engineering, University of Tikrit 
  • Associate Fellow of Higher Education Academy (AFHEA)
  • Member of International Society for Industrial Process Tomography-ISIPT
  • Member of State Key Laboratory of Polymer Materials Engineering (SKLPME/SCU/Chengdu/China)
  • Certificate of Distinction in University-wide Teaching Competition (Sichuan University/Chengdu-2019)
  • Certificate of Distinction for Creative Teaching Strategy (School of Chemical Engineering/SCU-2018)