Dr.(Ms.). K. D. N. Kumari

Senior Lecturer (G II)

Head of the Department

Contact:

Colombo, E371, 3rd Floor, S and T Building, The Open University of Sri Lanka, Nawala

Office: +94112881484, Ext: 484

E-mail: kdkum@ou.ac.lk

I am a graduate from University of Colombo with a Second Class (Upper Division) Honours in the area of Mathematical Finance. After graduation I joined the Department of Mathematics, University of Colombo as a Temporary Instructor in 2010. In 2011, I joined the Department of Management Sciences, Uwa Wellassa University as a Temporary Demonstrator.  I also have worked in the Department of Mathematics, University of Colombo as a Temporary Assistant Lecturer in 2012. Later 2012, I joined as a PhD Research Assistant at the Department of Mathematics, University of Colombo.  In 2017 I joined the Department of Mathematics and Philosophy of Engineering as a lecturer ( Probationary). Further, In 2017 I had completed my PhD in the field of Mathematical Modeling at University of Colombo, Sri Lanka.  At present I am working at the Department of Mathematics & Philosophy of Engineering, Faculty of Engineering Technology, The Open University of Sri Lanka, Nawala, as a Senior Lecturer.

Last Updated on 6 months

Mathematical Modeling

• Mathematical Modeling
• Statistics
• Partial Differencial Equation

• MHZ4357: Applied Statistics for Bachelor of Industrial Studies Honours in Agriculture
• MHZ4377:Applied Statistics for Bachelor of Software Engineering Honours
• MHZ4553: Engineering Mathematics III for Bachelor of Science Honours in Engineering
• MHZ5554: Engineering Mathematics IV for Bachelor of Science Honours in Engineering
• MHZ5570: Quantitative Techniques for Bachelor of Industrial Studies Honours

• HETC QIG post graduate grant to follow the PhD degree from year 2012 to 2015.

Kodithuwkku D. I. W. , Kumari K. D. N., Pathirana C. P. S.  and Athapattu B. C. L. (2022), “Economic Effects of Saltwater Intrusion for the People at Service Area of Kethhena Intake in Kalu Ganga Lower Basin”, Journal of Engineering and Technology, The Open University of Sri Lanka.(JET-OUSL) Vol 10, I pp 73-87.

Kumari K. D. N. and Wijerathna J. K. (2020),” Numerical Investigation of Heat Flow and Fluid Flow in a Solar Water Heater with an Evacuated-Tube Collector”, Mathematical Methods in Engineering and Applied Sciences, CRC Press, DOI: 10.1201/9780429343537-5

Kumari K.D.N. and Wijerathna J. K.(2017), “Sensitivity of the thermal performance of a water-in-glass evacuated tube solar water heater to the tube inclination angle” International Conference on Computational Modeling & Simulation (ICCMS-2017), University of Colombo.

Kumari K.D.N. and Wijerathna J. K. (2016), “Sensitivity of acute angle to the heat transfer process of a circular tube with a hemispherical cup at the bottom of an evacuated solar collector” Symposium On Statistical & Computational Modelling With Applications-2016, Univeristy of Kelaniya, Sri Lanka

Kumari K.D.N. and Wijerathna J. K.(2016), “Numerical simulation of heat flow of a circular tube with a hemispherical cup at the bottom in a evacuated solar collector” Annual Research Symposium 2016, University of Colombo, Sri Lanka

Kumari K.D.N. and Wijerathna J. K. (2015), “Effect of the angle of the heat flux to the tube and effect of the acute-angle of the tube to horizontal on heat transferring process in solar collectors” 11th Annual Research Session 2014, Eastern University, Sri Lanka

Kumari K.D.N. and Wijerathna J. K.(2014), “Numerical simulation of heat flow of a circular tube in a solar collector which is placed with an acute-angle θ to the horizontal” International Conference on Nonlinear Dynamics and its Applications in Physical and Biological Sciences (CNDAPBS-14), India

Kumari K.D.N. and Wijerathna J. K. (2014), “Numerical study of natural convection of heat flow on water through a circular pipe” proceeding of HETC Symposium 2014, Colombo, pp. 128

Kumari K. D. N. and Perera S. S. N.(2010), “Dynamics of evolution of cooperation : the prisoner’s dilemma approach” proceedings Vavuniya campus annual research session