• School of CEM, University of Brighton, Cockcroft Building, Lewes Road

    BN2 4GJ Brighton

    United Kingdom


Research output per year

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Personal profile

Research interests

My research interests are mathematical and numerical modelling of fluid flow, with special focus on multiphase flows. I have a strong background in applied mathematics combined with advanced skills in programming including parallel computing techniques.

As a member of the Sir Harry Ricardo Laboratories within the Advanced Engineering Centre, my main area of expertise is multiphase flows mostly for applications to gasoline and diesel engines. Other subjects I am interested in and have contributed to are related to multiphase physics: focusing of particles in subsonic and supersonic flows, flows with shock waves; the effect of droplets on heat transfer in supersonic boundary layers; geomechanical effects in oil reservoirs. In my research, I extensively use and develop new tools based on applied mathematics, Computer-Aided Engineering and programming.

Approach to teaching

My teaching covers core engineering disciplines: mechanics of materials and fluid mechanics. Working at the intersection of these two fields benefits both my research and my teaching; it makes it possible to apply knowledge and skills from both subjects, thus providing a holistic approach when solving an engineering problem. I also find that this dual perception gives me a deeper understanding of physical phenomena.

My ongoing research activity equips me with exciting topics of current interest that I like to discuss with my students. I promote problem solving skills and creativity, while providing students with necessary guidance and feedback. When teaching, I try to involve students in a dialogue, encouraging active learning, independent and critical thinking. I find it rewarding to participate in my students’ progress, professional and personal development.

Scholarly biography

In 2012, I graduated from the Department of Mechanics and Mathematics at Lomonosov Moscow State University with a PhD degree in Physics and Mathematics. While in Moscow, I contributed to a number of research projects on particle migration and particle focusing.

As a researcher at the Schlumberger Moscow Research Center (2006-2009), I participated in the development of commercial software, which models flows through porous media (oil and gas). My projects were related to double porosity model and coupling geomechanics: stresses, porosity and permeability, together with fluid flow.

In 2013 I joined the Sir Harry Ricardo Laboratories at the University of Brighton as a Research Fellow. Most recently I was appointed as a Senior Lecturer at the School of Computing, Engineering and Mathematics.

Supervisory Interests

I am interested in supervising research students in mathematical and numerical modelling for multiphase flows, aerodynamics and mass and heat transfer.

Luke Poulton

Modelling and experimental study of automotive fuel droplets and sprays heating and evaporation

Mr Abbas Al-Ameeri

Effect of climate change on durability of existing concrete structures: Comparison between UK & Iraq

Education/Academic qualification

PhD, Lomonosov Moscow State University


  • Q Science (General)
  • Spray
  • Droplets
  • Dusty gas
  • Particle focusing
  • Numerical modelling
  • Mathematical modelling
  • Heat and mass transfer
  • FLA

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Research Output

  • 18 Article
  • 11 Conference contribution with ISSN or ISBN
  • 8 Abstract
  • 1 Paper

A new approach to modelling micro-explosions in composite droplets

Sazhin, S., Bar-Kohany, T., Nissar, Z., Antonov, D., Strizhak, P. & Rybdylova, O., 14 Aug 2020, In : International Journal of Heat and Mass Transfer. 161, 38 p., 120238.

Research output: Contribution to journalArticle

  • Two approaches to mathematical modelling of heating/evaporation of a multi component liquid film

    Sazhin, S., Jia, M., Zhang, Y. & Rybdylova, O., 4 Sep 2020, Proceedings of the International Conference on Fluid Flow and Thermal Science (ICFFTS'20): Virtual Conference – September 9-10, 2020. 8 p. 130

    Research output: Chapter in Book/Conference proceeding with ISSN or ISBNConference contribution with ISSN or ISBN

  • A model for puffing/microexplosions in water/fuel emulsion droplets

    Nissar, Z., Rybdylova, O., Sazhin, S., Heikal, M., Aziz, R. & Ismael, M., 24 Dec 2019, In : International Journal of Heat and Mass Transfer. 149, 21 p., 119208.

    Research output: Contribution to journalArticle

  • Micro-explosion and autoignition of composite fuel/water droplets

    Antonov, D., Kuznetsoiv, G., Stryzhak, P., Rybdylova, O. & Sazhin, S., 1 Oct 2019, In : Combustion and Flame. 210, p. 479-489 11 p.

    Research output: Contribution to journalArticle

    Open Access
  • New approaches to hydrodynamic modelling of heating and evaporation of droplets and liquid films

    Sazhin, S. & Rybdylova, O., 4 Sep 2019, p. 1-6. 6 p.

    Research output: Contribution to conferencePaper

    Open Access
  • Activities

    • 1 Invited talk

    Modelling of spray and film drying: preliminary results

    Sergei Sazhin (Invited presenter) & Oyuna Rybdylova (Invited presenter)

    24 Jul 201725 Jul 2017

    Activity: External talk or presentationInvited talk