Introduction of the Research Center for Aircraft Core Technology and Boltzmann Gas Dynamics for Rarefied and Microscale Gases

The Research Center for Aircraft Core Technology (ACTRC) was founded in 2017 with the aim to attack directly the crux of unsolved problems in safety-related core systems of aircraft. The ACTRC envisions, in particular, the development of the critical linchpin technology like aircraft in-flight icing and certification upon which the aircraft indstry will hinge.

A unified framework for rarefied and microscale (monatomic and polyatomic) gases and viscoelastic fluids is also discussed in this talk. The conventional description of gases is based on the first-order Navier-Stokes-Fourier constitutive laws. In order to overcome limitations of the linear laws, the second-order algebraic nonlinear coupled constitutive laws derived from the Boltzmann kinetic equation via the balanced closure are introduced and then validated by the atomic-level molecular dynamics simulation.

Lastly, the new 2nd-order laws in conjunction with a discontinuous Galerkin method are applied to several challenging problems; shock structure, nanoscale Poiseuille flow, shock-vortex interaction, rarefied hypersonic flow, and rocket plume-lunar surface interaction and regolith particle dispersal in rarefied dusty gas flow in Lunar landing.

(Also chec Indian GIAN Lecture on Rarefied & Microscale Gases and Viscoelastic Fluids: A Univied Framework, 2017, IIT Kanpur, http://www.youtube.com/

Professor, Department of Aerospace and Software Engineering, Gyeongsang National University, Jinju, South Korea (1999-Present; http://acml.gnu.ac.kr)

Director, Research Center for Aircraft Core Technolgoy (ACTRC), Jinju, South Korea (2017-Present)

Guest Professor, Northwestern Polytechnical University, Xian, China (2014-Present)

Chiarman, 32nd International Symposium on Rarefied Gas Dynamics in 2020, Seoul, South Korea

Associate Editor, Advances in Aerodynamics, CARDC, China (2018-Present)

Associate Editor, Communications in Computational Physics, UK (2010-2016)

Research Associate, NASA Goddard Space Flight Center, US (1997-1999)

Ph.D. in Aerospace Engineering, University of Michigan, US (1996)

M.S. & B.S. in Aeronautical Engineering, Seoul Natioanl University, South Korea (1989, 1987)