Find Research Outputs

Search concepts
Selected Filters
2010

A comprehensive numerical simulation of Io's sublimation-driven atmosphere

Walker, A. C., Gratiy, S. L., Goldstein, D. B., Moore, C. H., Varghese, P. L., Trafton, L. M., Levin Fliflet, D. & Stewart, B., May 1 2010, In : Icarus. 207, 1, p. 409-432 24 p.

Research output: Contribution to journalArticle

frost
Io
sublimation
atmospheres
atmosphere

Advanced radiation calculations of hypersonic reentry flows using efficient databasing schemes

Sohn, I., Bansal, A., Levin, D. A. & Modest, M. F., Jul 1 2010, In : Journal of thermophysics and heat transfer. 24, 3, p. 623-637 15 p.

Research output: Contribution to journalArticle

hypersonic reentry
nonequilibrium flow
absorptivity
quasi-steady states
shape functions

Analysis of kinetic approach to homogeneous condensation in water expansions

Borner, A., Li, Z., Levin Fliflet, D., Jansen, R., Wysong, I., Gimelshein, S. & Zeifman, M., Dec 13 2010, 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. 2010-0985. (48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Condensation
Binding energy
Kinetics
Specific heat
Kinetic theory of gases

Assessment of Bhatnagar-Gross-Krook approaches for near continuum regime nozzle flows

Kumar, R., Titov, E. V., Levin, D. A., Gimelshein, N. E. & Gimelshein, S. F., Jul 1 2010, In : AIAA journal. 48, 7, p. 1531-1541 11 p.

Research output: Contribution to journalArticle

Nozzles
Reynolds number
Navier Stokes equations
Spacecraft
Boundary layers

Closely coupled DSMC hypersonic reentry flow simulations with photon monte carlo radiation

Sohn, I., Levin Fliflet, D. & Modest, M. F., Dec 13 2010, 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. 2010-0819. (48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Reentry
Hypersonic aerodynamics
Flow simulation
Photons
Radiation

Compressible laminar boundary-layer flows with statistical Bhatnagar-Gross-Krook approaches

Kumar, R., Titov, E. V. & Levin, D. A., Jul 1 2010, In : Journal of thermophysics and heat transfer. 24, 3, p. 556-565 10 p.

Research output: Contribution to journalArticle

compressible boundary layer
laminar boundary layer
boundary layer flow
flat plates
Monte Carlo method

Designing for the space environment via trade space exploration

Binz, C., Spencer, D. B., Levin, D. A. & Simpson, T. W., Nov 1 2010, In : Journal of Spacecraft and Rockets. 47, 6, p. 1070-1073 4 p.

Research output: Contribution to journalArticle

space exploration
aerospace environments
Spacecraft
spacecraft
spacecraft glow

Development of coupled particle hypersonic flowfield-photon Monte Carlo radiation methods

Ozawa, T., Levin, D. A., Wang, A. & Modest, M., Jul 1 2010, In : Journal of thermophysics and heat transfer. 24, 3, p. 612-622 11 p.

Research output: Contribution to journalArticle

hypersonics
photons
radiation
Monte Carlo method
reentry

Influence of interactions between turbulence and radiation on transmissivities in hypersonic turbulent boundary layers

Feldick, A. M., Duan, L., Modest, M. F., Martín, M. P. & Levin, D. A., Dec 13 2010, 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. 2010-1185. (48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hypersonic aerodynamics
Boundary layers
Turbulence
Radiation
Earth atmosphere

K-distributions for gas mixtures in hypersonic nonequilibrium flows

Bansal, A., Modest, M. & Levin Fliflet, D., Dec 14 2010, 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. 2010-0234. (48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hypersonic flow
Gas mixtures
Radiative transfer
Flow fields
Thermodynamics

Low pressure semiconductor processing transport property modeling using Direct Simulation Monte Carlo

Deng, H., Li, Z. & Levin Fliflet, D., Dec 13 2010, 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. 2010-1339. (48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Transport properties
Semiconductor materials
Processing
Physical vapor deposition
Plasmas

Modeling of CO2 condensation in the high pressure flows using the statistical BGK approach

Kumar, R., Li, Z. & Levin, D. A., Dec 13 2010, 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. 2010-0818. (48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Condensation
Flow of gases
Nozzles
Argon
Physical chemistry

Modeling of CO2 homogeneous and heterogeneous condensation plumes

Li, Z., Zhong, J. & Levin, D. A., Apr 1 2010, In : Journal of Physical Chemistry C. 114, 12, p. 5276-5286 11 p.

Research output: Contribution to journalArticle

plumes
Condensation
condensation
condensing
stagnation pressure

Modeling of crew exploration vehicle re-entry ablation flows

Titov, E. V., Kumar, R., Levin, D. A., Larin, M. E. & Anderson, B. P., Dec 14 2010, 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. 2010-0988. (48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Reentry
Ablation
Boundary conditions
Cracks
Earth atmosphere

Modeling of electronic excitation and radiation for hypersonic reentry flows in DSMC

Ozawa, T., Li, Z., Sohn, I., Levin Fliflet, D. & Modest, M. F., Dec 13 2010, 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. 2010-0987. (48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Reentry
Hypersonic aerodynamics
Ionization
Radiation
Electron temperature

Modeling of sodium radiation from reentry flows at high altitudes

Zheng, J. & Levin Fliflet, D., Sep 1 2010, In : Journal of Spacecraft and Rockets. 47, 5, p. 757-764 8 p.

Research output: Contribution to journalArticle

reentry
Reentry
high altitude
Sodium
sodium

Multigroup correlated-k distribution method for nonequilibrium atomic radiation

Bansal, A., Modest, M. F. & Levin, D. A., Jul 1 2010, In : Journal of thermophysics and heat transfer. 24, 3, p. 638-646 9 p.

Research output: Contribution to journalArticle

shock layers
spacecraft design
high temperature plasmas
radiation
gases

Multi-wavelength simulations of atmospheric radiation from Io with a 3-D spherical-shell backward Monte Carlo radiative transfer model

Gratiy, S. L., Walker, A. C., Levin, D. A., Goldstein, D. B., Varghese, P. L., Trafton, L. M. & Moore, C. H., May 1 2010, In : Icarus. 207, 1, p. 394-408 15 p.

Research output: Contribution to journalArticle

atmospheric radiation
Io
spherical shells
radiative transfer
shell

Particle and continuum method comparison of a high-altitude, extreme-mach-number reentry flow

Ozawa, T., Levin, D. A., Nompelis, I., Barnhardt, M. & Candler, G. V., Apr 1 2010, In : Journal of thermophysics and heat transfer. 24, 2, p. 225-240 16 p.

Research output: Contribution to journalArticle

reentry
high altitude
Mach number
continuums
computational fluid dynamics

Rassvet: Backward Monte Carlo radiative transfer in spherical-shell planetary atmospheres

Gratiy, S. L., Levin, D. A. & Walker, A. C., Mar 1 2010, In : Icarus. 206, 1, p. 366-379 14 p.

Research output: Contribution to journalArticle

planetary atmosphere
planetary atmospheres
spherical shells
radiative transfer
shell

Reconsideration of planar couette flows using the statistical Bhatnagar-Gross-Krook approach

Kumar, R., Titov, E. V. & Levin, D. A., Apr 1 2010, In : Journal of thermophysics and heat transfer. 24, 2, p. 254-262 9 p.

Research output: Contribution to journalArticle

Couette flow
simulation
Knudsen flow
comfort
gas dynamics

Spectral module for photon Monte Carlo calculations in hypersonic nonequilibrium radiation

Ozawa, T., Modest, M. F. & Levin Fliflet, D., Feb 1 2010, In : Journal of Heat Transfer. 132, 2, p. 1-8 8 p.

Research output: Contribution to journalArticle

nonequilibrium radiation
hypersonics
Hypersonic aerodynamics
Molecular electronics
Photons

Study of emission turbulence-radiation interaction in hypersonic boundary layers

Duan, L., Sohn, I., Grube, N., Martín, M. P., Levin, D. A. & Modest, M. F., Dec 14 2010, 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. 2010-0354. (48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hypersonic boundary layers
Large eddy simulation
Electronic states
Boundary layers
Turbulence

Thermal protection system crack growth simulation using advanced grid morphing techniques

Titov, E. V., Levin, D. A., Picetti, D. J. & Anderson, B. P., Oct 1 2010, In : Journal of thermophysics and heat transfer. 24, 4, p. 708-720 13 p.

Research output: Contribution to journalArticle

thermal protection
cracks
grids
carbon
simulation
2011

Analysis of SO2+O chemistry models for simulations of the atmosphere of Io

Deng, H., Moore, C. H., Levin, D. A., Goldstein, D. B. & Varghese, P. L., Oct 18 2011, 27th International Symposium on Rarefied Gas Dynamics - 2010, RGD27. PART 1 ed. p. 1139-1144 6 p. (AIP Conference Proceedings; vol. 1333, no. PART 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Io
chemistry
atmospheres
collisions
cross sections

A new weighting scheme approach for two-phase condensation modeling

Kumar, R. & Levin, D. A., Oct 18 2011, 27th International Symposium on Rarefied Gas Dynamics - 2010, RGD27. PART 1 ed. p. 179-184 6 p. (AIP Conference Proceedings; vol. 1333, no. PART 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

stagnation pressure
condensation
simulation

Application of DSMC electronic excitation modeling to radiation calculation of hypersonic reentry flows

Li, Z., Sohn, I., Levin, D. A. & Modest, M. F., Oct 18 2011, 27th International Symposium on Rarefied Gas Dynamics - 2010, RGD27. PART 1 ed. p. 1118-1123 6 p. (AIP Conference Proceedings; vol. 1333, no. PART 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

hypersonic reentry
ionization
radiation
electron energy
electronics

Closely coupled flowfield-radiation interactions during hypersonic reentry

Feldick, A. M., Modest, M. F. & Levin, D. A., Oct 1 2011, In : Journal of thermophysics and heat transfer. 25, 4, p. 481-492 12 p.

Research output: Contribution to journalArticle

hypersonic reentry
computational fluid dynamics
hypersonics
radiation
Crew Exploration Vehicle

Determining of flow non-equilibrium regions using the kolmogorov-smirnov criterion

Titov, E. V., Kumar, R. & Levin, D. A., Oct 18 2011, 27th International Symposium on Rarefied Gas Dynamics - 2010, RGD27. PART 1 ed. p. 563-568 6 p. (AIP Conference Proceedings; vol. 1333, no. PART 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Couette flow
vehicles
Crew Exploration Vehicle
Kolmogorov-Smirnov test
reentry

Development and application of a charring ablator thermal response model

Kumar, R., Titov, E. V., Levin, D. A. & Anderson, B. P., Dec 1 2011, 42nd AIAA Thermophysics Conference. (42nd AIAA Thermophysics Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

charring
Crew Exploration Vehicle
blowing
Blow molding
Trajectories
Coalescence
Ammonia
coalescing
condensates
Molecular dynamics

Development of a water cluster evaporation model using Molecular Dynamics

Borner, A., Li, Z. & Levin, D. A., Oct 18 2011, 27th International Symposium on Rarefied Gas Dynamics - 2010, RGD27. PART 1 ed. p. 847-852 6 p. (AIP Conference Proceedings; vol. 1333, no. PART 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

trimers
dimers
evaporation
molecular dynamics
potential energy

DSMC analysis of fractal-like aggregates of spores in the semi-rarefied flow regime

Zhu, T., Kumar, R., Titov, E. V. & Levin, D. A., Dec 1 2011, 42nd AIAA Thermophysics Conference. (42nd AIAA Thermophysics Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

spores
Fractals
fractals
Gases
high temperature gases

DSMC modeling of internal energy excitation and dissociation of molecular nitrogen in hypersonic reentry flows

Li, Z., Sohn, I. & Levin Fliflet, D., Oct 18 2011, 27th International Symposium on Rarefied Gas Dynamics - 2010, RGD27. PART 1 ed. p. 1233-1238 6 p. (AIP Conference Proceedings; vol. 1333, no. PART 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

hypersonic reentry
internal energy
dissociation
nitrogen
excitation

DSMC modeling of vibration-translational relaxation of molecular nitrogen in hypersonic reentry flows

Li, Z., Sohn, I. & Levin, D. A., Dec 1 2011, 42nd AIAA Thermophysics Conference. (42nd AIAA Thermophysics Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

hypersonic reentry
Reentry
Hypersonic aerodynamics
Nitrogen
nitrogen

In depth analysis of AVCOAT TPS response to a reentry flow

Titov, E. V., Kumar, R. & Levin, D. A., Oct 18 2011, 27th International Symposium on Rarefied Gas Dynamics - 2010, RGD27. PART 1 ed. p. 492-497 6 p. (AIP Conference Proceedings; vol. 1333, no. PART 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

thermal protection
reentry
pyrolysis
sweat cooling
ablation

Investigation of the DSMC approach for ion/neutral species in modeling low pressure plasma reactor

Deng, H., Li, Z., Levin, D. & Gochberg, L., Oct 18 2011, 27th International Symposium on Rarefied Gas Dynamics - 2010, RGD27. PART 1 ed. p. 1033-1038 6 p. (AIP Conference Proceedings; vol. 1333, no. PART 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

low pressure
reactors
ions
simulation
hollow cathodes

Ionic liquid electrospray modeling using molecular dynamics

Borner, A., Li, Z. & Levin Fliflet, D., 2011, 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2011.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ionic liquids
Molecular dynamics
Electric fields
Platinum
Boundary conditions

Modeling of carbon dioxide condensation in the high pressure flows using the statistical BGK approach

Kumar, R., Li, Z. & Levin, D. A., May 16 2011, In : Physics of fluids. 23, 5, 052001.

Research output: Contribution to journalArticle

carbon dioxide
Condensation
Carbon dioxide
condensation
stagnation pressure

Modeling of electronic excitation and radiation in non-continuum hypersonic reentry flows

Li, Z., Ozawa, T., Sohn, I. & Levin Fliflet, D., Jun 3 2011, In : Physics of fluids. 23, 6, 066102.

Research output: Contribution to journalArticle

hypersonic reentry
Reentry
Hypersonic aerodynamics
Ionization
Radiation

Molecular dynamics studies to understand the mechanism of heat accommodation in homogeneous condensing flow of carbon dioxide

Kumar, R., Li, Z., Van Duin, A. & Levin, D., Aug 14 2011, In : Journal of Chemical Physics. 135, 6, 064503.

Research output: Contribution to journalArticle

condensing
accommodation
Carbon Dioxide
Molecular dynamics
carbon dioxide

Molecular dynamics studies to understand the mechanism of heat accommodation in homogeneous condensing flow of CO2

Kumar, R., Li, Z., Van Duin, A. C. T. & Levin, D. A., Oct 18 2011, 27th International Symposium on Rarefied Gas Dynamics - 2010, RGD27. PART 1 ed. p. 853-858 6 p. (AIP Conference Proceedings; vol. 1333, no. PART 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

condensing
accommodation
molecular dynamics
heat
condensation

Multi-scale k-distribution model for gas mixtures in hypersonic nonequilibrium flows

Bansal, A., Modest, M. F. & Levin, D. A., May 1 2011, In : Journal of Quantitative Spectroscopy and Radiative Transfer. 112, 7, p. 1213-1221 9 p.

Research output: Contribution to journalArticle

nonequilibrium flow
Hypersonic flow
hypersonics
Gas mixtures
gas mixtures

Preface for the RGD proceedings

Levin Fliflet, D., Wysong, I., Garcia, A. & Gochberg, L. A., Oct 18 2011, In : AIP Conference Proceedings. 1333, PART 1, p. 9-11 3 p.

Research output: Contribution to journalEditorial

congressional reports

Simulation of a typical reentry vehicle TPS local flow features and material response

Titov, E. V. & Levin, D. A., Oct 18 2011, 27th International Symposium on Rarefied Gas Dynamics - 2010, RGD27. PART 1 ed. p. 498-503 6 p. (AIP Conference Proceedings; vol. 1333, no. PART 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

reentry vehicles
reentry
cracks
simulation
recession

Simulation of heat loads on the CEV orion compression pads during reentry

Titov, E. V., Kumar, R., Levin, D. A., Anderson, B. P., Bouslog, S. A. & Neel, R., Dec 1 2011, 42nd AIAA Thermophysics Conference. (42nd AIAA Thermophysics Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

thermal protection
reentry
Reentry
Thermal load
heat

Simulation of homogeneous condensation of ethanol in high pressure supersonic nozzle flows using BGK condensation model

Kumar, R. & Levin, D. A., Oct 18 2011, 27th International Symposium on Rarefied Gas Dynamics - 2010, RGD27. PART 1 ed. p. 185-190 6 p. (AIP Conference Proceedings; vol. 1333, no. PART 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

nozzle flow
supersonic nozzles
ethyl alcohol
condensation
simulation
nozzle flow
supersonic nozzles
Condensation
Nozzles
condensation

Simulation of plasma interaction with Io's atmosphere

Moore, C. H., Deng, H., Goldstein, D. B., Levin, D., Varghese, P. L., Trafton, L. M., Stewart, B. D. & Walker, A. C., Oct 18 2011, 27th International Symposium on Rarefied Gas Dynamics - 2010, RGD27. PART 1 ed. p. 1163-1168 6 p. (AIP Conference Proceedings; vol. 1333, no. PART 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

plasma interactions
Io
atmospheres
neutral gases
collisions

Simulation of the stagnation region microcrack growth during space shuttle reentry

Titov, E. V., Levin, D. A., Anderson, B. P., Rodriguez, A. & Picetti, D. J., Jan 1 2011, In : Journal of thermophysics and heat transfer. 25, 1, p. 48-54 7 p.

Research output: Contribution to journalArticle

reentry
space shuttles
stagnation point
microcracks
carbon