Dr. P. Y. A. G. S. Yapa is a senior lecturer in the Department of Mathematics & Philosophy of Engineering. She graduated from University of Moratuwa, Sri Lanka in 2004 in the field of specialization Earth Resources Engineering and she has completed her MPhil at University of Sri Jayewardenepura, Sri Lanka in 2013. She obtained her PhD from the University of Warwick in the UK.
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Mathematical Modeling
Course Coordination:
MHZ5355: Discrete Mathematics for Bachelor of Science Honours in Engineering
MHZ5375: Discrete Mathematics for Bachelor of Software Engineering Honours
Journal research papers
P.Y.A.G.S. Yapa, Paul Griffiths, Stephen J. Garrett and Peter J. Thomas (2024), “Comparison of Linear-Stability Calculations for Boundary-Layer Flow Over Rough Rotating Disks for Two Different Roughness-Modelling Approaches”, pp.1-19, Physics of Fluids. Under Review. #POF24-AR-06572R
https://orcid.org/0009-0002-4781-0855
P.Y.A.G.S. Yapa, Paul Griffiths, Stephen J. Garrett and Peter J. Thomas (2024), “The effect of roughness on the convective stability of the rotating disk boundary layer”, Journal of Engineering and Technology of The Open University of Sri Lanka (JET-OUSL), pp.1-13. Under Review.
P.Y.A.G.S. Yapa, D.A. Tantrigoda and C.P.S. Pathirana (2016), “Illustrating the possibility of modeling the gravity anomalies in terms of bodies having density vary with depth”, Journal of Engineering and Technology of The Open University of Sri Lanka (JET-OUSL)
Conference Proceedings
P.Y.A.G.S. Yapa, Peter J. Thomas, Paul Griffiths and Stephen J. Garrett (2024), “Boundary-Layer Transition Over Rough Rotating Disks: Comparison of two Roughness-Modelling Approaches”, 1st European Fluid Dynamics Conference, Germany, 16-20 September 2024.
Yapa P.Y.A.G.S., Garrett S.J., Griffiths P.T. and Thomas P.J. (2021), “Designing Optimal Roughness: A theory-led approach to roughness-based drag reduction”, Proceedings of the UK fluids conference, University of Southampton, p.43.
Yapa P.Y.A.G.S., Garrett S.J., Griffiths P.T. and Thomas P.J. (2021), “Designing Optimal Roughness: A theory-led approach to roughness-based drag reduction”, Proceedings of the 8th annual engineering postgraduate symposium, University of Warwick, pp.107-108.
Yapa P.Y.A.G.S., Thomas P.J. and Griffiths P.T. (2019), “Designing Optimal Roughness: A theory-led approach to roughness-based drag reduction”, Proceedings of the 7th annual engineering postgraduate symposium, University of Warwick, pp.113-114.
P.Y.A.G.S. Yapa, D.A. Tantrigoda (2016), “Modeling of gravity anomalies over a sedimentary basin having a horizontal igneous layer intruded into it”, Sri Lanka Association for the Advancement of Science (SLAAS) Proceedings of the 72nd Annual Sessions.
P.Y.A.G.S. Yapa, D.A. Tantrigoda (2015), “Modeling of vertical density distribution in a normal geological fault by the Backus and Gilbert method”, Sri Lanka Association for the Advancement of Science (SLAAS) Proceedings of the 71st Annual Sessions.
Department of Mathematics and Philosophy of Engineering, Faculty of Engineering Technology
