Research and expertise

My research interests cover computational hydraulics and its application. I am pursuing two research topics: (1) sediment transport model coupled with shallow water flow; (2) high-performance hydro-morphodynamic model design.

Current research activity

  • Robust numerical methods for solving shallow water equations with addiational source terms
  • High-order TVD schemes for unstructured girds
  • Multi-phase flow for sediment transport
  • High-performance computing

Recent publications

  • Zhao, J., Zgen, I., Liang, D. and Hinkelmann, R. (2017) Comparison of depth-averaged concentration and bed load flux sediment transport models of dam-break flow. Water Science and Engineering 4, pp. 287–294.
  • Zhao, J., Özgen, I., Liang, D. and Hinkelmann, R. (2018) Improved multislope MUSCL reconstruction on unstructured grids for shallow water equations. International Journal for Numerical Methods in Fluids 87, pp. 401–436.
  • Zhao, J., Özgen, I., Liang, D., Wang, T. and Hinkelmann, R. (2018) An improved multislope MUSCL scheme for solving shallow water equations on unstructured grids. Computers & Mathematics with Applications 77 (2), pp. 576–596.
  • Zhao, J., Özgen, I., Liang, D., Wang, T. and Hinkelmann, R. (2019) A robust sediment transport model with improved flux and source term treatment. Journal of Hydrology 570, pp. 647–665. 
  • Zhao, J., Özgen, I., Liang, D. and Hinkelmann, R. (2016) Comparison of capacity and non-capacity sediment transport models for dam break flow over movable bed. In: Proceedings of the 13th International Symposium on River Sedimentation, Stuttgart, Germany.
  • Zhao, J., Özgen, I., Liang, D. and Hinkelmann, R. (2018) A novel slope failure operator for the total load sediment transport model. In: Proceedings of 13th International Conference on Hydroinformatics 2018, Palermo, Italy.
  • Özgen, I., Zhao, J., Liang, D. and Hinkelmann, R. (2016) Urban flood modeling using shallow water equations with depth-dependent anisotropic porosity. Journal of Hydrology 541, pp. 1165–1184.
  • Özgen, I., Zhao, J., Liang, D. and Hinkelmann, R. (2017) Wave propagation speeds and source term influences in single and integral porosity shallow water equations. Water Science and Engineering 10, 275–286.
  • Hou, J., Wang, T., Li, P., Li, Z., Zhang, X., Zhao, J. and Hinkelmann, R. (2018) An implicit friction source term treatment for overland flow simulation using shallow water flow model. Journal of hydrology, 564, 357-366.
  • Özgen, I., Abily, M., Zhao, J., Liang, D., Gourbesville, P. and Hinkelmann, R. (2018) Towards district scale flood simulations using conventional and anisotropic porosity shallow water models with high-resolution topographic information. La Houille Blanche, (2), 90-98.
  • Amann, F., O¨ zgen, I., Abily, M., Zhao, J., Liang, D., Kobayashi, K. and Hinkelmann, R. (2018) Integral porosity shallow water model at district scale-Case study in Nice. In E3S Web of Conferences (Vol. 40, p. 06018). EDP Sciences.
  • Özgen, I., Bruwier, M., Zhao, J., Archambeau, P., Dewals, B., Kobayashi, K.and Hinkelmann, R. (2018). Numerical study of building drag dissipation for-mulations in the integral porosity shallow water model. In E3S Web of Conferences (Vol. 40, p. 06018). EDP Sciences.

Profile

Career

10/2013 – 03/2019 PhD in Computational Hydraulics, Technische Universität Berlin, Germany

09/2010 – 06/2013 MSc in Hydraulic and River Dynamics, Northwest A&F University, China

09/2006 – 06/2010 BEng in Hydraulic and Hydro-Power Engineering, Northwest A&F University, China