
Irmak TAYLAN KarpuzcuUniversity of Illinois Urbana-Champaign | UIUC · Department of Aerospace Engineering
Irmak TAYLAN Karpuzcu
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27
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Publications (27)
This paper presents an overlay-based one-way coupled Eulerian–Lagrangian computational approach designed to investigate the dynamics of particulate phases in extreme high-speed, high-altitude flight conditions characterized by very low particulate mass loading. Utilizing the Direct Simulation Monte Carlo method to generate accurate gas flow fields,...
The assumption of axial symmetry for hypersonic flows over conically shaped geometries is ubiquitous in both experiments and numerical simulations. Yet depending on the free stream conditions, many of these flows are unsteady and their transition from laminar to turbulent is a three-dimensional phenomena. Combining triple deck theory/linear stabili...
An overlay-based one-way coupled Eulerian-Lagrangian solver is used to simulate dilute hypersonic gas-solid flows characterized by low particulate mass loading. Utilizing the Direct Simulation Monte Carlo (DSMC) method to generate accurate gas fields, this study explores flows over a canonical sphere-cone geometry. The general gas-solid phase coupl...
The interaction between the hypersonic flow over a cone and a side jet creates complex multiple recirculation regions as well as separation, reattachment, and bow shocks known as Edney type-IV shock/shock interactions. The interactions between these multiscale structures are shown to be well captured with the direct simulation Monte Carlo (DSMC) me...
This study utilizes in-situ data of stratospheric particle size distributions to understandparticle-surface impacts at hypersonic flight conditions. Simulations are performed to trackLagrangian particles through the flow field and statistically gather characteristics of particlesthat impact the surface. Probability density functions in terms of sur...
Hypersonic flow over a cylinder was modeled using the direct simulation Monte Carlo method to study how nitric oxide (NO) Ultraviolet emission profiles are a test of high-fidelity thermochemical, nonequilibrium models. For pressures found in typical hypersonic ground facilities, it was shown that the ultraviolet radiation emission profiles are very...
View Video Presentation: https://doi.org/10.2514/6.2022-3501.vid Nitric Oxide (NO) Infrared (IR) radiation modeling is performed for a hypersonic flow at M=7.2 over a cylinder case. The flowfield results for the base flow is calculated using the Direct Simulation Monte Carlo (DSMC) method. A collisional radiative model is constructed to obtain accu...
View Video Presentation: https://doi.org/10.2514/6.2022-3987.vid The interaction between a hypersonic flow at M=6 over a cone and a side jet is investigated using the direct simulation Monte Carlo (DSMC) and experimental methods. The presence of the jet creates complex multiple recirculation regions and separation, reattachment and bow shocks are o...
View Video Presentation: https://doi.org/10.2514/6.2022-4102.vid Two-dimensional supersonic flow over several compression corners are computed by Direct Simulation Monte Carlo (DSMC) and their linear global stability analysed by solution of the compressible BiGlobal eigenvalue problem on generalised coordinates. The base flow features a large separat...
View Video Presentation: https://doi.org/10.2514/6.2022-0679.vid The hypersonic, non-equilibrium thermochemistry flow over a cylinder was modeled using direct simulation Monte Carlo (DSMC) method to study Nitric Oxide (NO) ultraviolet (UV) emissions. The main focus of this work was to understand the effect of the amount of molecular oxygen in the f...
View Video Presentation: https://doi.org/10.2514/6.2022-1577.vid The interaction between a hypersonic flow at M=6 over a flat plate, a wedge and a cone with a side jet is investigated using the direct simulation Monte Carlo (DSMC) method. The presence of the jet creates a complex flowfield near the surface as multiple circulation regions, separatio...