Assoc. Prof.

İlyas Yılmaz

Academic Appointments:
2023/02 - Present    Associate Professor, Istanbul Bilgi University, Istanbul, Türkiye
2017/02 - 2023/02   Assistant Professor, Istanbul Bilgi University, Istanbul, Türkiye
2014/09 - 2015/09   Postdoctoral Researcher,  Chalmers University of Technology, Göteborg, Sweden        
2013/02 - 2017/02   Assistant Professor, Istanbul Aydın University, Istanbul, Türkiye
2009/09 - 2010/09   Visiting Researcher, Chalmers University of Technology, Göteborg, Sweden
2000/07 - 2013/01   Research Assistant, Istanbul Technical University (Energy Institute and Informatics Institute), Istanbul, Türkiye

Education

Ph.D., Aeronautics and Astronautics Dept., Istanbul Technical University, TR, 2012.
M.Sc., Energy Institute, Istanbul Technical University, TR, 2001. 
B.Sc., Astronomy and Space Sciences, Istanbul University, TR, 1997.

Courses

Fluid Mechanics
Engineering Fluid Mechanics
Computational Fluid Dynamics
Thermal Systems Design
Senior Design Project I
Senior Design Project II
Dynamics
Experimental Design, Measurement and Instrumentation 

Areas of Interest

Jet-Crossflow Interaction
Hybrid RANS-LES Methods
SGS Modeling in LES
Turbulent Convection and Heat Transfer
Turbulence Modeling
Computational Aerodynamics
Computational Fluid Dynamics
Fluid Dynamics

Other Information

Selected Publications:

Scalar Mixing Characteristics of an Elevated Low Velocity Ratio Jet in Atmospheric Crossflow using IDDES İ Yilmaz CM3P Conference. Computational Methods for Multi-scale, Multi-uncertainty and Multi-physics Problems. 2025

Interaction of an Elevated Low Velocity Ratio Turbulent Jet with Atmospheric Crossflow: An IDDES Study I Yilmaz Advances in Computational Heat and Mass Transfer. ICCHMT 2023 Lecture Notes in Mechanical Engineering. Springer, Cham. 2024

NUMERICAL INVESTIGATION OF THE EFFECT OF DIFFERENT TWISTED TAPES PLACED INSIDE THE TUBE ON HEAT TRANSFER AND FRICTION FACTOR Duran, E., Aslan E., Yilmaz, I. SEVENTH INTERNATIONAL CONFERENCE ON ADVANCES IN MECHANICAL ENGINEERING (ICAME 2024) 2024

Interaction of an Elevated Low Velocity Ratio Turbulent Jet with Atmospheric Crossflow: An IDDES study I Yilmaz 14. International Conference on Computational Heat and Mass Transfer ICCHMT 2023

Effects of Wall-Shearing on Weakly Turbulent Rayleigh-Bénard Convection I Yilmaz Proceedings of CONV-22: Int. Symp. on Convective Heat and Mass Transfer  2022

A novel buoyancy-modified subgrid-scale model for large-eddy simulation of turbulent convection I Yilmaz International Journal of Numerical Methods for Heat & Fluid Flow 2021

LES Modelling of Weakly Turbulent Rayleigh-Bénard Convectiom Using Mixed-Scale SGS Model: Effect of the Model Parameter Alpha I Yilmaz Proceedings of IMASCON International Marmara Sciences Congress Spring 2021 2021

Large Eddy Simulation of Turbulent Rayleigh-Bénard Convection: An Assessment of Subgrid-Scale Models İ YILMAZ, Afyon Kocatepe University Journal of Science and Engineering 2021

Parallel direct numerical simulation and analysis of turbulent Rayleigh–Bénard convection at moderate Rayleigh numbers using an efficient algorithm I Yilmaz Computers & Fluids 213, 1047 2020

Analysis of Rayleigh–Taylor instability at high Atwood numbers using fully implicit, non-dissipative, energy-conserving large eddy simulation algorithm I Yilmaz Physics of Fluids  2020

Comparison of SGS Models in Large-Eddy Simulation for Transition to Turbulence in Taylor-Green Flow I Yilmaz, L Davidson Conference on Modelling Fluid Flow (CMFF’15), 2015

Application of an all-speed implicit finite-volume algorithm to Rayleigh–Taylor instability I Yilmaz, FO Edis, H Saygin International Journal of Computational Methods 12 (03), 1550018, 2015

Parallel implicit DNS of temporally-evolving turbulent shear layer instability I Yilmaz, FO Edis, H Saygin, L Davidson Journal of Computational and Applied Mathematics 259, 651-659, 2014

Numerical simulation of Kelvin-Helmholtz instability using an implicit, non-dissipative DNS algorithm I Yilmaz, L Davidson, FO Edis, H Saygin Journal of Physics: Conference Series 318 (3), 032024, 2011