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PROFESSOR

Omid Ejtehadi

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Professor Omid Ejtehadi

Lab :: Aerospace Computational Modeling Laboratory

Tel :: +82-55-772-1648

Fax :: +82-55-772-1580

Office :: GNU Building 407 Room 808

E-mail :: omid@gnu.ac.kr

Education

Ph. D: Aerospace Engineering, GNU, Republic of Korea (2018. 8)
MS: Aerospace Engineering, FUM, Iran (2012. 9)
BS: Aeronautical Engineering, IAU, Iran (2008. 10)

Experiences

Mar. 2025 – Present: Assistant Professor, Gyeongsang National University (Republic of Korea)
Feb. 2023 – Feb. 2025: UKRI Fellow, University of Edinburgh (United Kingdom)
Dec. 2021 – Feb. 2023: Postdoctoral Researcher, Chungnam National University (Republic of Korea)
Dec. 2018 – Nov. 2021: Postdoctoral Researcher, Korea Institute of Science and Technology Information (Republic of Korea)
Aug. 2018 – Nov. 2018: Postdoctoral Researcher, Gyeongsang National University (Republic of Korea)

Principal Publications

International Journal Papers

A. Sadeghi, O. Ejtehadi, S.H. Yoon, B.J. Kim, Improvement of the two-fluid momentum equation for turbulent bubbly flows, Physics of Fluids, Vol. 36, No. 1 (2024)
O. Ejtehadi, A.K. Gupta, S. Khajepor, S. Haeri, Force-chain finder: A software tool for the recursive detection of force-chains in granular materials via minor principal stress, Computer Physics Communications, 297 109070 (2024)
T.K. Mankodi, O. Ejtehadi, T. Chourushi, A. Rahimi, R.S. Myong, nccrFOAM suite: Nonlinear coupled constitutive relation solver in the OpenFOAM framework for rarefied and microscale gas flows with vibrational non-equilibrium, Computer Physics Communications, 109024 (2023)
S. Khajepor, O. Ejtehadi, S. Haeri, The effects of interstitial inert gas on the spreading of Inconel 718 in powder bed fusion, Additive Manufacturing, 103737 (2023)
O. Ejtehadi, T.K. Mankodi, I. Sohn, B.J. Kim, R.S. Myong, Gas-particle flows in a microscale shock tube and collection efficiency in the jet impingement on a permeable surface, Physics of Fluids, 35 (2023) (Editor’s Pick)
O. Ejtehadi, A. Sadeghi, B.J. Kim, Numerical analysis of nucleate boiling in rolling rod bundle with tilted axis using two-fluid modeling approach, International Journal of Heat and Mass Transfer, 201 123612 (2023)
O. Ejtehadi, R.S. Myong, I. Sohn, B.J. Kim, Full continuum approach for simulating plume-surface interaction in planetary landings, Physics of Fluids, 35 (2023) (Editor’s Pick)
T. Chourushi, A. Rahimi, S. Singh, O. Ejtehadi, T.K. Mankodi, R.S. Myong, Thermal and flow characteristics of nonequilibrium monatomic, diatomic, and polyatomic gases in cylindrical Couette flow based on second-order non-Navier–Fourier constitutive model, International Journal of Heat and Mass Transfer, 187 122580 (2022)
O. Ejtehadi, E. Mahravan, I. Sohn, Investigation of shock and a dust cloud interaction in Eulerian framework using a newly developed OpenFOAM solver, International Journal of Multiphase Flow, 103812 (2021).
O. Ejtehadi, R.S. Myong, Eulerian-Eulerian simulation of dusty gas flows past a triangular prism using a modal discontinuous Galerkin method for a wide range of flow regimes, Computers & Fluids, 218 (2021).
O. Ejtehadi, A. Rahimi, R.S. Myong, Investigation of a trifold interaction mechanism of shock, vortex, and dust using a DG method in a two-fluid model framework, Powder Technology, 121 (2020).
Rahimi, A., Ejtehadi, O., Lee, K. H., Myong, R. S., Near-field Plume-surface Interaction and Regolith Erosion and Dispersal During the Lunar Landing, Acta Astronautica, Vol. 175, pp. 308-326, 2020. 10. (Manuscript)
O. Ejtehadi, R.S. Myong, A modal discontinuous Galerkin method for simulating dusty and granular gas flows in thermal non-equilibrium in the Eulerian framework, Journal of Computational Physics, 411 (2020) 109410.
R. Myong, A. Karchani, O. Ejtehadi, A review and perspective on a convergence analysis of the direct simulation Monte Carlo and solution verification, Physics of Fluids, 31 (2019) 066101.
O. Ejtehadi, A. Rahimi, A. Karchani, R.S. Myong, Complex wave patterns in dilute gas–particle flows based on a novel discontinuous Galerkin scheme, International Journal of Multiphase Flow, 104 (2018) 125-151.
Karchani, A., Ejtehadi, O., Myong, R. S., A Probabilistic Automatic Steady State Detection Method for the Direct Simulation Monte Carlo, Communications in Computational Physics, Vol. 20, No. 5, pp. 1183-1209, 2016. 11. (Manuscript)
O. Ejtehadi, E. Roohi, J.A. Esfahani, Detailed investigation of hydrodynamics and thermal behavior of nano/micro shear driven flow using DSMC, Scientia Iranica. Transaction B, Mechanical Engineering, 20 (2013) 1228.
J.A. Esfahani, O. Ejtehadi, E. Roohi, Second law analysis of micro/nano Couette flow using direct simulation Monte Carlo method, International Journal of Exergy, 13 (2013) 320-342.
O. Ejtehadi, E. Roohi, J.A. Esfahani, Investigation of basic molecular gas structural effects on hydrodynamics and thermal behaviors of rarefied shear driven micro/nano flow using DSMC, International Communications in Heat and Mass Transfer, 39 (2012) 439-448.
O. Ejtehadi, J.A. Esfahani, E. Roohi, Compressibility and rarefaction effects on entropy and entropy generation in micro/nano Couette flow using DSMC, Journal of Physics: Conference Series, 362 (2012) 012008.

Domestic Journal Papers

Ejtehadi, O., Rahimi, A., Myong, R.S., Numerical Investigation of the Counter-Intuitive Behavior of Mach Disk Movement in Underexpanded Gas-Particle Jets, Journal of Computational Fluid Engineering, Vol. 24, No. 1, pp. 19-28, 2019. 03.