Department of Civil and Chemical Engineering

Dr EK Onyari

College of Science, Engineering and Technology
School of Engineering
Department: Civil and Chemical Engineering
Senior Lecturer
Tel: 011 471 3379


  • PhD (Civil & Environmental Engineering)
  • Msc (Water Engineering)
  • Bsc(Hons) Civil & Environmental Engineering

Fields of academic interests

Research Interests

  • Computational techniques in Engineering
  • Contaminant transport in porous media
  • Hydrological modeling
  • Optimization techniques
  • Decision support systems

Field of Specialisation

  • Hydraulics, Contaminant transport, Computational methods in Engineering , Hydrology, optimization_

Professional positions, fellowships & awards

Professional Affiliation

  • IPET
  • EWRI

Awards and Honours

  • Developing Researcher Award – UNISA 2012


Short Biography
Dr Onyari is a senior lecturer in the Department of Civil and Chemical Engineering, College of Science, Engineering and Technology (CSET), University of South Africa (UNISA). She obtained her PhD from the University of the Witwatersrand, her Msc from the UNESCO-IHE in Delft, Netherlands, and a BSC from Egerton university in Kenya.

Her main research interests are in contaminant transport through porous media, decision support systems in water resources, hydrology, hydraulics and computational methods in water resources.

Selected Publications

  • Ednah Onyari, Akpofure Taigbenu and John Ndiritu (2016) Groundwater pollution source identification by optimization and Green element method, EWRI World Environmental & Water Resources Congress 22-26 May 2016, Florida, USA, DOI: 10.1061/9780784479865, pp. 309-318
  • E. K. Onyari, A. E.Taigbenu (2015) Green element solutions of the source identification and concentration in groundwater transport problems, In Computational problems in science and Engineering, Eds. N. Mastorakis et al. , Springer International Publishing. DOI 10.1007/978-3-319-15765-8-22, pp. (387-394).
  • Popescu, I. , Jonoski, A. , Van Andel, S. J. , Onyari, E. and Quiroga, V.G. Moya (2010) 'Integrated modelling for flood risk mitigation in Romania: case study of the Timis-Bega river basin', International Journal of River Basin Management, Vol 8 Issue 3 and 4 p.269-280 (DOI: 10.1080/15715124.2010.512550).
  • E. K. Onyari and F. M. Ilunga (2013) Application of MLP Neural Network and M5P Model Tree in Predicting Streamflow: A Case Study of Luvuvhu Catchment, South Africa. International Journal of Innovation, Management and Technology vol. 4, no. 1, pp. 11-15, 2013. (DOI: 10.7763/IJIMT.2013.V4.347).
  • E. K. Onyari, A. E. Taigbenu (2015) Inverse Green element solutions of pollution sources and their contaminant plumes in groundwater transport. Advances in Boundary Element & meshless Techniques, Valencia, 6-8 July 2015. Eds. Mantic V., Saez A., and Aliabadi M. H., ISBN 98-0-9576731-2-0.
  • E.K. Onyari, A.E. Taigbenu (2013) Green Element method solutions to steady inverse contaminant transport problems. Boundary Elements and Other Mesh Reduction Methods XXXV, Eds: C.A Brebbia, A-H-D Cheng; WIT Transactions on modeling and simulation, WIT Press, Vol 54, pp 94-101, (ISSN 1743-355X , DOI:102495/BEM130091).
  • Ednah K. Onyari, Masengo Ilunga (2016) A neural network for flood prediction: A case study. Proceedings of the 35th IASTED International Conference February 15 - 16, 2016 Innsbruck, Austria Modelling, Identification and Control (MIC 2016), DOI: 10.2316/P.2016.830-045.