S
Seong Ryong Koh
Researcher at RWTH Aachen University
Publications - 41
Citations - 428
Seong Ryong Koh is an academic researcher from RWTH Aachen University. The author has contributed to research in topics: Trailing edge & Turbulence. The author has an hindex of 11, co-authored 41 publications receiving 388 citations.
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Two-step simulation of slat noise
TL;DR: In this paper, the flow field and the acoustic field of a high-lift configuration consisting of a slat and a main wing are numerically investigated by a hybrid method, where the unsteady flow field is computed via a large-eddy simulation (LES) and in a second step, the acoustic fields are determined by solving the acoustic perturbation equations (APE).
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Turbulence and heat excited noise sources in single and coaxial jets
TL;DR: In this article, the acoustic properties of a single isothermal single stream jet at a Mach number 0.9 and a Reynolds number 400,000 based on the nozzle diameter and two coaxial jets whose Mach number and Reynolds number matched the values of the single jet were analyzed by a hybrid method.
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Numerical analysis of the impact of permeability on trailing-edge noise
TL;DR: In this paper, the impact of porous surfaces on the near-wall turbulent structures and the generated trailing-edge noise is analyzed for several trailing edge shapes of finite thickness using a high resolution large-eddy simulation (LES)/computational aeroacoustics (CAA) method.
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Dependence of turbulent wall-shear stress on the amplitude of spanwise transversal surface waves
TL;DR: In this article, large-eddy simulations of turbulent boundary layer flow over a flat plate whose surface is actuated by span-wise traveling transversal waves are performed, and the dependence of the drag reduction on the amplitude A + in an extended Reynolds number range while the other wave parameters are kept constant.
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Analysis of combustion noise of a turbulent premixed slot jet flame
Stephan Schlimpert,Seong Ryong Koh,Konrad Pausch,Matthias Meinke,Matthias Meinke,Wolfgang Schröder,Wolfgang Schröder +6 more
TL;DR: In this paper, the authors studied the sound generation due to the interaction between the turbulent flow field and a premixed slot flame and the impact of varying gas expansion ratios and Markstein lengths.