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Dr Youyou Yan

Senior Lecturer

School of Mathematics, Computer Science and Engineering Department of Mechanical Engineering and Aeronautics

Contact details

Address

Dr Youyou Yan CG21, Tait Building
City, University of London
Northampton Square
London EC1V 0HB
United Kingdom

About

Overview

Dr Youyou Yan graduated with BEng and MSc in Fluid Mechanics from Tsinghua University, Beijing. She was awarded PhD in Experimental Fluid Mechanics by Heriot-Watt University, Edinburgh. After working in University of Oxford and University of Bath, she joined City University London as a Senior Experimental Officer in July 2001. She is currently a senior lecturer in Mechanical Engineering and serves as the Senior Tutor for research students in engineering in the School of Mathematics, Computer Science & Engineering.

Qualifications

  1. PhD Experimental Fluid Mechanics & Optical Instrumentation, Heriot-Watt University, United Kingdom, 1992
  2. MSc Fluid Mechanics, Tsinghua University, China, 1988
  3. BEng Fluid Mechanics, Tsinghua University, China, 1985

Employment

  1. Senior Lecturer, City, University of London, 2008 – present
  2. Senior Experimental Officer, City, University of London, 2001 – 2008
  3. Research Officer, University of Bath, 1999 – 2001
  4. Postdoctoral Research Assistant, University of Oxford, 1992 – 1999

Memberships of professional organisations

  1. Chartered (CEng), Institution of Mechanical Engineers

Teaching

- Laboratory
- Computing
- Computing for the Airline Industry
- Heat Transfer and Turbomachinery
- Advanced Energy Systems, Heat & Mass Transfer
- Final year project supervision
- Project leader for Wind Turbine Design Challenge

Research

Dr Yan has research interests in experimental fluid mechanics and heat transfer using liquid crystal thermography, laser based diagnostics and high speed imaging techniques. The experimental techniques have been applied to study: boiling heat transfer, heat transfer enhancement by sliding bubbles, heat transfer in pre-swirl cooling systems, fuel spray characterisation, fuel mixture in gasoline direct injection engines and piston ring lubrication in automotive engines.

Publications

Publications by category

Conference papers and proceedings (25)

  1. Wang, Z., Zhang, Q., Yan, Y. and Liu, K. (2016). Secondary flow and extra heat transfer enhancement of ribbed surface after jet impingement.
  2. Marchi, A., Yan, Y., Nouri, J.M. and Arcoumanis, C. (2013). PIV Investigation on Flows Induced by Fuel Sprays from an Outwards Opening Pintle Injector for GDI engines. ILASS – Europe 2013 1-4 September, Chania, Greece.
  3. Nouri, J.M., Marchi A., , Yan Y., and Arcoumanis, C., (2007). Internal flow and spray characteristics of a pintle-type outward opening piezo-injector. SAE 2007-01-1406 April.
  4. Mitroglou, N., Nouri, J.M., Yan, Y. and Arcoumanis, C. (2007). Spray structure generated by multi-hole injectors for gasoline direct injection engines. SAE 2007-01-1417.
  5. Nouri, J.M., Mitroglou, N., Yan, Y. and Arcoumanis, C. (2007). Internal flow and cavitation in a multi-hole injector for gasoline direct injection engines. SAE 2007-01-1405.
  6. Mitroglou, N., Nouri, J.M., Yan, Y., Gavaises, M. and Arcoumanis, C. (2007). Spray structure generated by multi-hole injectors for gasoline direct-injection engines.
  7. Yan, Y, , Gashi, S., Nouri, J.M., Lockett, R.D. and Arcoumanis, C. (2005). Investigation of spray characteristics in a spray guided DISI engine using PLIF and LDV. 2nd Int. Conf. on Laser and Optical Diagnostics (ICOLAD) 12-14 September, City University London.
  8. Nouri, J.M.,, , Hamid, M.A., Yan. Y, and Arcoumanis, C. (2005). Spray characterization of a piezo pintle-type injector for gasoline direct injection engines. 2nd Int. Conf. on Laser and Optical Diagnostics (ICOLAD) 12-14 September, City University London.
  9. Gashi, S., , Yan, Y., Lockett, R.D. and Arcoumanis, C. (2002). Planar Laser Induced Fluorencence Measurements of Fuel Concentration in a Gasoline Direct-Injection Optical Engine. in 1st Int. Conf. on Optical & Laser Diagnostics (ICOLAD 2002) 16-20 December, City University London.
  10. Kenning, D.B.R., Bustnes, O.E. and Yan, Y. (2000). Heat transfer to a sliding vapour bubble. Boiling 2000 Engineering Foundation Conference 30 Apr 2000 – 5 May 2000, Alaska.
  11. Yan, Y. and Kenning, D.B.R. (1999). Pressure fluctuations during boiling in a narrow channel. HTFS Research Symposium 16 October, Maidenhead.
  12. Wienecke, M., Yan, Y. and Kenning, D.B.R. (1999). Bubble nucleation and growth during saturated pool boiling on a thin vertical plate. Colloquium on Optical Methods Applied to Thermo-Fluid dynamics 23-24 September, Munich.
  13. Aligoodarz, M.R., Yan, Y. and Kenning, D.B.R. (1998). Wall temperature and pressure variations during flow boiling in narrow channels. 11th International Heat Transfer Conference 23-28 August, Kyoungju, Korea.
  14. Yan, Y., Shen, X., Gao, J. and Ding, Z. (1998). Turbulent velocity measurements in orifice pipe flow with an improved on-axis LDV system. 4th International Symposium on Laser Anemometry to Fluid Mechanics Lisbon.
  15. Yan, Y., Kenning, D.B.R., Pan, X. and Grant, I. (1997). A PIV investigation of flows around sliding air bubbles in water under a heated inclined plane. 3rd International Conference on Fluid Dynamic Measurement and its Applications 14-17 October, Beijing, China.
  16. Yan, Y., Kenning, D.B.R. and Cornwell, K. (1996). Sliding and sticking vapour bubbles under inclined plane and curved surfaces. EUROTHEM SEMINAR No 48: Pool Boiling 2 18-20 September, Paderborn, Germany.
  17. Golobic, I., Pavlovic, E., Strgar, S., Kenning, D.B.R. and Yan, Y. (1996). Wall temperature variations during bubble growth on a thin plate: computations and experimentations. EUROTHEM SEMINAR No 48: Pool Boiling 2 18-20 September, Paderborn, Germany.
  18. Yan, Y., Grant, I.A., Kenning, D.B.R. and Cornwell, K. (1995). Heat transfer to sliding bubbles under plane and curved surfaces. Transactions 4th UK National Conference on Heat Transfer 26-27 September, Manchester.
  19. Yan, Y. and Kenning, D.B.R. (1995). Flow boiling in bubbly flow. Engineering Foundation Conference on Convective Flow Boiling 30 Apr 1995 – 5 May 1995, Banff.
  20. Yan, Y. and Kenning, D.B.R. (1994). Liquid crystal measurements of wall temperatures in boiling heat transfer. Optical Methods and Data Processing in Heat and Fluid Flow 14-15 April, City University London.
  21. Yan, Y. and Kenning, D.B.R. (1994). Heat transfer near sliding vapour bubbles in boiling. 10th International Heat Transfer Conference 14-18 April, Brighton.
  22. Yan, Y. and Kenning, D.B.R. (1993). Boiling on thin walls. Eurotherm 26: Compact Two-Phase Heat Exchangers 16-17 September, Heriot-Watt University.
  23. Shen, X. and Yan, Y. (1989). A single colour LDV system for 3-D simultaneous measurement. 3rd International Conference, Laser Anemometry- Advances and Applications Swansea.
  24. Aroussi, A., Grant, I. and Yan, Y. Forced convection in joined rectangular grooves, numerical simulation of PIV and LDV measurements. ICIASF'91.
  25. Yan, Y. and Grant, I. A machine vision particle image velocimetry system for the monitoring opaque slurry motion. ICIASF'91.

Journal articles (24)

  1. Nouri, J.M., Vasilakos, I., Yan, Y. and Reyes-Aldasoro, C.C. (2019). Effect of viscosity and speed on oil cavitation development in a single piston-ring lubricant assembly. Lubricants, 7(10). doi:10.3390/lubricants7100088.
  2. Wang, Z., Zhang, Q., Yan, Y., Liu, K. and Ligrani, P.M. (2017). Secondary flows and extra heat transfer enhancement of ribbed surfaces with jet impingement. Numerical Heat Transfer; Part A: Applications, 72(9), pp. 669–680. doi:10.1080/10407782.2017.1394139.
  3. Mirshahi, M., Yan, Y. and Nouri, J.M. (2015). Influence of cavitation on near nozzle exit spray. Journal of Physics: Conference Series, 656(1). doi:10.1088/1742-6596/656/1/012093.
  4. Kim, S., Yan, Y., Nouri, J.M. and Arcoumanis, C. (2013). Effects of intake flow and coolant temperature on the spatial fuel distribution in a direct-injection gasoline engine by PLIF technique. Fuel, 106, pp. 737–748. doi:10.1016/j.fuel.2012.10.002.
  5. Marchi, A., Nouri, J., Yan, Y. and Arcoumanis, C. (2010). Spray stability of outwards opening pintle injectors for stratified direct injection spark ignition engine operation. International Journal of Engine Research, 11(6), pp. 413–437. doi:10.1243/14680874JER605.
  6. Kim, S., Nouri, J.M., Yan, Y. and Arcoumanis, C. (2009). Effects of intake flow on the spray structure of a multi-hole injector in a DISI engine. International Journal of Automotive Technology, 10(3), pp. 277–284. doi:10.1007/s12239-009-0032-2.
  7. Nouri, J.M., Marchi, A., Yan, Y. and Arcoumanis, C. (2008). Internal flow and spray characteristics of a pintle-type outward opening piezo-injector. Transactions Journal of Passenger Cars: Mechanical, 116(6), pp. 915–934. doi:10.4271/2007-01-1406.
  8. Marchi, A., Nouri, J.M., Yan, Y. and Arcoumanis, C. (2007). Internal flow and spray characteristics of pintle-type outwards opening piezo injectors for gasoline direct-injection engines. SAE Technical Papers. doi:10.4271/2007-01-1406.
  9. Nouri, J.M., Hamid, M.A., Yan, Y. and Arcoumanis, C. (2007). Spray characterization of a piezo pintle-type injector for gasoline direct injection engines. Journal of Physics: Conference Series, 85(1). doi:10.1088/1742-6596/85/1/012037.
  10. Yan, Y., Gashi, S., Nouri, J.M., Lockett, R.D. and Arcoumanis, C. (2007). Investigation of spray characteristics in a spray-guided DISI engine using PLIF and LDV. Journal of Physics: Conference Series, 85(1). doi:10.1088/1742-6596/85/1/012036.
  11. Kim, S., Nouri, J.M., Yan, Y. and Arcoumanis, C. (2007). Effects of intake swirl and coolant temperature on spray structure of a high pressure multi-hole injector in a direct-injection gasoline engine. Journal of Physics: Conference Series, 85(1). doi:10.1088/1742-6596/85/1/012003.
  12. Nouri, J., Mitroglou, N., Yan, Y. and Arcoumanis, D. (2007). Internal flow and cavitation in a multi-hole injector for gasoline direct-injection engines. SAE Technical Papers p. 2007. doi:10.4271/2007-01-1405.
  13. Kim, S., Nouri, J.M., Yan, Y. and Arcoumanis, C. (2007). Effects of intake swirl and cooling temperature on spray structure generated by a high pressure gasoline multi-hole injector. Journal of Physics: Conference Series, 85(1).
  14. Wen, D.S., Yan, Y. and Kenning, D.B.R. (2004). Saturated flow boiling of water in a narrow channel: time-averaged heat transfer coefficients and correlations. Applied Thermal Engineering, 24(8-9), pp. 1207–1223.
  15. Gashi, S., Yan, Y., Lockett, R.D. and Arcoumanis, C. (2003). Planar laser induced fluorescence measurements of fuel concentration in a gasoline direct injection optical engine. Institute of Physics Conference Series, 177, pp. 23–31.
  16. Yan, Y., Gord, M.F., Lock, G.D., Wilson, M. and Owen, J.M. (2003). Fluid Dynamics of a Pre-Swirl Rotor-Stator System. Journal of Turbomachinery, 125(4), pp. 461–468.
  17. Newton, P.J., Yan, Y., Stevens, N.E., Evatt, S.T., Lock, G.D. and Owen, J.M. (2003). Transient heat transfer measurements using thermochromic liquid crystal. Part 1: An improved technique, International Journal of Heat and Fluid Flow. International Journal of Heat and Fluid Flow, 24(1), pp. 14–22.
  18. Yan, Y., Gord, M.F., Lock, G.D., Wilson, M. and Owen, J.M. (2002). Fluid dynamics of a pre-swirl rotor-stator system. American Society of Mechanical Engineers, International Gas Turbine Institute, Turbo Expo (Publication) IGTI, 3 B, pp. 805–813. doi:10.1115/GT2002-30415.
  19. Yan, Y. and Owen, J.M. (2002). Uncertainties in transient heat transfer measurements with liquid crystal. International Journal of Heat and Fluid Flow, 23, pp. 29–35.
  20. Kenning, D.B.R. and Yan, Y. (2001). Saturated flow boiling of water in a narrow channel: experimental investigation of local phenomena. Chemical Engineering Research and Design, 79(4), pp. 425–436.
  21. Yan, Y., Kenning, D.B.R. and Cornwell, K. (1997). Sliding and sticking vapour bubbles under inclined plane and curved surfaces. International Journal of Refrigeration, 20(8), pp. 583–591.
  22. Kenning, D.B.R. and Yan, Y. (1996). Pool boiling heat transfer on a thin plate: features revealed by liquid crystal thermography. International Journal of Heat and Mass Transfer, 39(15), pp. 3117–3137.
  23. Arossi, A., Yan, Y. and Grant, I. (1992). Experimental verification of numerical simulation of turbulent flow past enclosures in offshore structures. Optics and Lasers in Engineering, 16, pp. 391–409.
  24. Grant, I., Owens, E., Yan, Y. and Shen, X. (1992). Particle image velocimetry measurements of the separated flow behind a rearward facing step. Experiments in Fluids, 12, pp. 238–244.