PUBLICATIONS

2020

  • Owen, L. D., Gao, X., and Guzik, S. M., Techniques for Improving Monotonicity in a Fourth-Order Finite-Volume Algorithm Solving Shocks and Detonations, Journal of Computational Physics, Vol. 415,  2020. [pdf]
  • Hurst, C. and Gao, X., Increasing the Finite Limit of Predictability in Turbulence by the Ensemble Transform Kalman Filter, 2020 AIAA Science and Technology Forum and Exposition, January 6-10, 2020, Orlando, Florida.
  • Christopher, J., Gao, X., Guzik, S. M., Falgout, R. D., and Schroder, J. B., Parallel in Time for a Fully Space-Time Adaptive Mesh Refinement Algorithm, 2020 AIAA Science and Technology Forum and Exposition, January 6-10, 2020, Orlando, Florida. [pdf]
  • Wang, Y., Walters, S., Overton, N., Guzik, S. M., and Gao, X., CFD Modeling of Bluff-Body Stabilized Premixed Flames with Data Assimilation, 2020 AIAA Science and Technology Forum and Exposition, January 6-10, 2020, Orlando, Florida. [pdf]
  • Overton, N., Gao, X., and Guzik, S. M., Applying High-Order, Adaptively-Refined, Finite-Volume Methods to Discrete Structured Representations of Arbitrary Geometry, 2020 AIAA Science and Technology Forum and Exposition, January 6-10, 2020, Orlando, Florida. [pdf]
  • Walters, S., Gao, X., and Guzik, S. M., Large-Eddy Simulations Using High-Order Finite Volume Methods with the Stretched-Vortex Subgrid-Scale Model, 2020 AIAA Science and Technology Forum and Exposition, January 6-10, 2020, Orlando, Florida. [pdf]

2019

  • Christopher, J., Gao, X., Guzik, S. M., Falgout, R. D., and Schroder, J. B., Space-Time Adaptivity with Multigrid Reduction in Time for the Compressible Navier-Stokes Equations, 19th Copper Mountain Conference On Multigrid Methods, March 24-28, 2019, Copper Mountain, Colorado. [pdf]
  • Weinmeister, J., Gao, X., and Roy, S., Analysis of a Polynomial Chaos-Kriging Metamodel for Uncertainty Quantification in Aerodynamics, AIAA Journal, February, 2019.
  • Polak, S. and Gao, X., An Adaptive High-Order Finite-Volume Algorithm for Electromagnetic Fields, 2019 AIAA Science and Technology Forum and Exposition, January 7-11, 2019, San Diego, California. [pdf]
  • Walters, S., Gao, X., and Guzik, S. M., Evaluation of the Stretched-Vortex Subgrid-Scale Model for Large-Eddy Simulation with a Fourth-Order Finite Volume Algorithm, 2019 AIAA Science and Technology Forum and Exposition, January 7-11, 2019, San Diego, California. [pdf]
  • Sato, S., Spotts, N., and Gao, X., Validation of Fan Source Term Model for Prediction of Fan Distortion Transfer, 2019 AIAA Science and Technology Forum and Exposition, January 7-11, 2019, San Diego, California.

2018

  • Owen, L. D., Guzik, S. M., and Gao, X., A High-Order Finite-Volume Algorithm for Multispecies Gaseous Flows on Mapped Domains, Computers & Fluids, Vol. 170, pp. 249-260, 2018. [pdf]
  • Weinmeister, J., Xie, N., Gao, X., Prasad, A., and Roy, S., Analysis of a Polynomial Chaos-Kriging Metamodel for Uncertainty Quantification in Aerospace Applications, 2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, January 8-12, 2018, Kissimmee, Florida. [pdf]
  • Walters, S., Guzik, S. M., and Gao, X., Favre-Averaged Spatiotemporal-Filtered Large Eddy Simulation, 2018 AIAA Science and Technology Forum and Exposition, January 8-12, 2018, Kissimmee, Florida. [pdf]
  • Polak, S. and Gao, X., A Fourth-Order Finite-Volume Method with Adaptive Mesh Refinement for the Multifluid Plasma Model, 2018 AIAA Science and Technology Forum and Exposition, January 8-12, 2018, Kissimmee, Florida. [pdf]
  • Yin, S., Guzik, S. M., and Gao, X., A Fourth-Order Finite-Volume Method with Adaptive Mesh Refinement for Large-Eddy Simulation, 2018 AIAA Science and Technology Forum and Exposition, January 8-12, 2018, Kissimmee, Florida. [pdf]

2017

  • Gao, X., Wang, Y., Overton, N., Zupanski, M., and Tu, X., Data-Assimilated Computational Fluid Dynamics Modeling of Convection-Diffusion-Reaction Problems, Journal of Computational Science, Vol. 21, pp. 38-59, 2017. DOI: 10.1016/j.jocs.2017.05.014.
  • Overton, N., Gao, X., and Guzik, S. M., Spline Interpolation for a Fourth-Order Adaptive Mesh Refinement Algorithm on Arbitrary Mapped Grids, 23rd AIAA Computational Fluid Dynamics Conference, June 5-9, 2017, Denver, Colorado.
  • Weinmeister, J., Xie, N., Gao, X., Prasad, A., and Roy, S., Combining a Reduced Polynomial Chaos Expansion Approach with Universal Kriging for Uncertainty Quantification, 8th Theoretical Fluid Mechanics Conference, June 5-9, 2017, Denver, Colorado. [pdf]
  • Wang, Y. and Gao, X., Covariance Correction to the Ensemble Kalman Filter in a Data-Assimilated CFD Algorithm for the Convection-Diffusion-Reaction Equation, 23rd AIAA Computational Fluid Dynamics Conference, June 5-9, 2017, Denver, Colorado.
  • Owen, L. D., Guzik, S. M., and Gao, X., A Fourth-Order Finite-Volume Algorithm for Compressible Flow with Chemical Reactions on Mapped Grids, 23rd AIAA Computational Fluid Dynamics Conference, June 5-9, 2017, Denver, Colorado.
  • Walters, S., Gao, X., and Guzik, S. M., Computational Predictions of Forces on Autorotors at High Reynolds Numbers, 23rd AIAA Computational Fluid Dynamics Conference, June 5-9, 2017, Denver, Colorado. [pdf]

2016

  • Guzik, S. M., Gao, X., and Olschanowsky, C., A High-Performance Finite-Volume Algorithm for Solving Partial Differential Equations Governing Compressible Viscous Flows on Structured Grids, Computers and Mathematics with Applications, 72(9), pp. 2098–2118, 2016.
  • Gao, X., Owen, L. D., and Guzik, S. M., A Parallel Adaptive Numerical Method with Generalized Curvilinear Coordinate Transformation for Compressible Navier–Stokes Equations, International Journal for Numerical Methods in Fluids, 82(10), pp. 664-688, 2016. DOI: 10.1002/fld.4235.
  • Gao, X., Wang, Y., Overton, N., Zupanski, M., and Tu, X., Properties of a Modified Ensemble Kalman Filter Algorithm for Combustion Application, AIAA 2016-3484, 46th AIAA Fluid Dynamics Conference, June 13-17, 2016, Washington, DC.
  • Gao, X., Wang, Y., Spotts, N., Xie, N., Roy, S., and Prasad, A., Fast Uncertainty Quantification in Engine Nacelle Inlet Design Using a Reduced Dimensional Polynomial Chaos Approach, AIAA 2016-5057, 52nd AIAA/SAE/ASEE Joint Propulsion Conference, July 25-27, 2016, Salt Lake City, Utah.
  • Gao, X., Owen, L. D., and Guzik, S. M., A High-Order Finite-Volume Method for Combustion, AIAA 2016-1808, 54th AIAA Aerospace Sciences Meeting, January 4-8, 2016, San Diego, California.
  • Gao, X., Wang, Y., Overton, N., May, I., and Tu, X., Data Assimilated Computational Fluid Dynamics Algorithm for Combustion, AIAA 2016-1810, 54th AIAA Aerospace Sciences Meeting, January 4-8, 2016, San Diego, California.
  • Spotts, N. and Gao, X., A Comparative Study of Turbulence Models for RANS Simulations of Rotor 67, AIAA 2016-0608, 54th AIAA Aerospace Sciences Meeting, January 4-8, 2016, San Diego, California.
  • Christopher, J. C., Gao, X., and Guzik, S. M., Anisotropic Patch-Based Adaptive Mesh Refinement for Finite-Volume Methods, AIAA 2016-0605, 54th AIAA Aerospace Sciences Meeting, January 4-8, 2016, San Diego, California.
  • Owen, L. D., Guzik, S. M., and Gao, X., A Fourth-Order Viscous Operator on Mapped Grids, 54th AIAA Aerospace Sciences Meeting, AIAA 2016-0604, January 4-8, 2016, San Diego, California.
  • Riley, J. R., Gao, X., Olschanowsky, C., and Guzik, S. M., Enabling Performance Optimization of CFD Applications with Source-to-Source Compiler Technology, AIAA 2016-1812, 54th AIAA Aerospace Sciences Meeting, January 4-8, 2016, San Diego, California.

2015

  • Gao, X., Wang, Y., Overton, N., May, I., and Tu, X., Estimation of Flame Speed Model Parameter Using Ensemble Kalman Filter Algorithm, WSSCI 2015-134IE-0013, Fall Meeting of the Western States Section of the Combustion Institute, October 5-6, 2015, Provo, Utah.
  • McArdle, P., Williams, J., Beavers, A., and Gao, X., A Numerical Model for the Determination of Biomass Ignition from a Hotspot, WSSCI 2015-134IE-0023, Fall Meeting of the Western States Section of the Combustion Institute, October 5-6, 2015, Provo, Utah.
  • Owen, L. D., Guzik, S. M., and Gao, X., High-Order CFD Modeling of Multispecies Flows, WSSCI 2015-134IE-0030, Fall Meeting of the Western States Section of the Combustion Institute, October 5-6, 2015, Provo, Utah.
  • Gao, X. and Guzik, S. M., A Fourth-Order Scheme for the Compressible Navier-Stokes Equations, AIAA 2015-0298, 53rd AIAA Aerospace Sciences Meeting, January 5-9, 2015, Kissimmee, Florida.
  • Guzik, S. M., Gao, X., Owen, L., and Colella, P., A Freestream-Preserving Fourth-Order Finite-Volume Method in Mapped Coordinates with Adaptive-Mesh Refinement, Computers & Fluids, Vol. 123, pp. 202-217, 2015.

2014

  • Olschanowsky, C., Strout, M. M., Guzik, S. M., Loffeld, J., and Hittinger, J., A Study on Balancing Parallelism, Data Locality, and Recomputation in Existing PDE Solvers, International Conference for High Performance Computing, Networking, Storage and Analysis, pp. 793-804, November 16-21, 2014, New Orleans, Louisiana.
  • Gao, X., Guzik, S. M., and Colella, P., A Fourth-Order Boundary Treatment for Viscous Fluxes on Cartesian Grid Finite-Volume Methods, AIAA 2014-1277, AIAA Science and Technology Forum and Exposition, January 13-17, 2014, National Harbor, Maryland.
  • Guzik, S. M., Weisgraber, T. H., Colella, P., and Alder, B. J., Interpolation Methods and the Accuracy of Lattice-Boltzmann Mesh Refinement, Journal of Computational Physics, Vol. 259, pp. 461-487, 2014.

2013

  • Spotts, N., Guzik, S. M., and Gao, X., A CFD Analysis of Compressible Flow through Convergent-Conical Nozzles, AIAA 2013-3734, 49th AIAA Joint Propulsion Conference & Exhibit, July 15-17, 2013, San Jose, California.
  • Graves, D. T., Colella, P., Modiano, D., Johnson, J., Sjogreen, B., and Gao, X., A Cartesian Grid Embedded Boundary Method for the Compressible Navier Stokes Equations, Communications in Applied Mathematics and Computational Sciences, 8(1), pp. 99-122, 2013.
  • Krieger, C., Strout, M. M., Olschanowsky, C., Stone, A., Guzik, S. M., Gao, X., Bertolli, C., Kelly, P. H. J., Mudalige, G., Straalen, B. V., and Williams, S., Loop Chaining: A Programming Abstraction for Balancing Locality and Parallelism, 18th International Workshop on High-Level Parallel Programming Models and Supportive Environments, May 20-24, 2013, Boston, Massachusetts.
  • Guzik, S. M., Gao, X., Weisgraber, T., Alder, B., and Colella, P., An Adaptive Mesh Refinement Strategy with Conservative Space-Time Coupling for the Lattice-Boltzmann Method, AIAA 2013-0866, 51st AIAA Aerospace Sciences Meeting, 2013.
  • Kreuder, J. J., Kirkpatrick, A. T., and Gao, X., Computation of Heat Transfer from an Impinging Flame Jet to a Plane Surface, AIAA 2013-0605, 51st AIAA Aerospace Sciences Meeting, 2013.

2012

  • Guzik, S. M., McCorquodale, P., and Colella, P., A Freestream-Preserving High-Order Finite-Volume Method for Mapped Grids with Adaptive-Mesh Refinement, AIAA 2012-0574, 50th AIAA Aerospace Sciences Meeting, 2012.

2011

  • Day, M. S., Gao, X., and Bell, J. B., Properties of Lean Turbulent Methane-Air Flames with Significant Hydrogen Addition, Proceedings of the Combustion Institution, 33(1), pp. 1601-1608, 2011.
  • Day, M. S., Bell, J. B., Gao, X., and Glarborg, P., Numerical Simulation of Nitrogen Oxide Formation in Lean Premixed Turbulent H2/O2/N2 Flames, Proceedings of the Combustion Institute, 33(1), pp. 1591-1599, 2011.
  • Gao, X., Northrup, S., and Groth, C. P. T., Parallel Solution-Adaptive Method for Two-Dimensional Non-Premixed Combusting Flows, Progress in Computational Fluid Dynamics, An International Journal, 11(2), pp. 76-95, 2011.

2010

  • Gao, X. and Groth, C. P. T., A Parallel Solution-Adaptive Method for Three-Dimensional Turbulent Non-Premixed Combusting Flows, Journal of Computational Physics, 229(9), pp. 3250-3275, 2010.
  • Bell, J. B., Day, M. S., Gao, X., and Lijewski, M. J., Simulation of Nitrogen Emissions in a Low Swirl Burner, SciDAC 2010, Journal of Physics: Conference Series, July 2010, Chattanooga, Tennessee.

2009

  • Gao, X., Day, M. S., and Bell, J. B., Characterization of Freely Propagating Hydrogen Flames, Fall Technical Meeting of the Western States Section of the Combustion Institute, University of California, October 27-28, 2009, Irvine, California.
  • Guzik, S. M. and Groth, C. P. T., Heterogeneous Parallelism of High-Order Residual Distribution Schemes Using Central and Graphics Processing Units, Proceedings of the 21st International Conference on Parallel Computational Fluid Dynamics, pp. 267–271, 2009.

2008

  • Gao, X. and Groth, C. P. T., Parallel Adaptive Mesh Refinement Scheme for Three-Dimensional Turbulent Non-Premixed Combustion, AIAA 2008-1017, 46th AIAA Aerospace Sciences Meeting and Exhibit, January 7-10, 2008, Reno, Nevada.
  • Guzik, S. M. and Groth, C. P. T., Comparison of Solution Accuracy of Multidimensional Residual Distribution and Godunov-Type Finite-Volume Methods, International Journal of Computational Fluid Dynamics, 22(1-2), pp. 61–83, 2008.
  • Guzik, S. M. and Groth, C. P. T., A High-Order Residual-Distribution Scheme with Variation-Bounded Nonlinear Stabilization, AIAA 2008-0777, 46th AIAA Aerospace Sciences Meeting, 2008.

2006

  • Gao, X. and Groth, C. P. T., A Parallel Adaptive Mesh Refinement Algorithm for Predicting Turbulent Non-Premixed Combusting Flows, International Journal of Computational Fluid Dynamics, 20(5), pp. 349-357, 2006.
  • Gao, X. and Groth, C. P. T., Parallel Adaptive Mesh Refinement Scheme for Turbulent Non-Premixed Combusting Flow Prediction, AIAA 2006-1448, 44th AIAA Aerospace Sciences Meeting and Exhibit, January 9-12, 2006, Reno, Nevada.
  • Harris, P. G., Stowe, R. A., Ripley, R. C., and Guzik, S. M., Pulse Detonation Engine as a Ramjet Replacement, Journal of Propulsion and Power, 22(2), pp. 462–473, 2006.

2005

  • Gao, X. and Groth, C. P. T., Parallel Adaptive Mesh Refinement Algorithm for Turbulent Non-Premixed Combusting Flows, Proceedings of the 2005 Combustion Institute Canadian Section Technical Meeting, May 15-18, 2005, Halifax, Canada.