Preprints for some papers can be found at: SCOREC reports

Journal Articles

    Published

  1. M. Zhou, O. Sahni, T. Xie, M.S. Shephard and K.E. Jansen, “Unstructured Mesh Partition Improvement for Implicit Finite Element at Extreme Scale”, Journal of Supercomputing, 59(3):1218-1228, 2012.
  2. A. Ovcharenko, D. Ibanez, F. Delalondre, O. Sahni, C.D. Carothers, K.E. Jansen and M.S. Shephard, “Neighborhood Communication Paradigm to Increase Scalability in Large-Scale Dynamic Scientific Applications”, Parallel Computing, 38(3):140-156, 2012.
  3. M. Zhou, T. Xie, S. Seol, M.S. Shephard, O. Sahni and K.E. Jansen, “Tools to Support Mesh Adaptation on Massively Parallel Computers”, Engineering with Computers, 28(3):287-301, 2012.
  4. O. Sahni, J. Wood, K.E. Jansen and M. Amitay, “Three-dimensional Interactions between a Finite-span Synthetic Jet and a Crossflow”, Journal of Fluid Mechanics, 671:254-287, 2011.
  5. N. Liu, J. Fu, C.D. Carothers, O. Sahni, K.E. Jansen and M.S. Shephard, “Massively Parallel I/O for Partitioned Solver Systems”, Parallel Processing Letters, 20(4):377-395, 2010.
  6. M. Zhou, O. Sahni, K.D. Devine, M.S. Shephard and K.E. Jansen, “Controlling Unstructured Mesh Partitions for Massively Parallel Simulations”, SIAM Journal on Scientific Computing, 32(6):3201-3227, 2010.
  7. O. Sahni, X.J. Luo, K.E. Jansen and M.S. Shephard, “Curved Boundary Layer Meshing for Adaptive Viscous Flow Simulations”, Finite Elements in Analysis and Design, 46(1-2):132-139, 2010.
  8. M. Zhou, O. Sahni, H.J. Kim, C.A. Figueroa, C.A. Taylor, M.S. Shephard and K.E. Jansen, “Cardiovascular Flow Simulations at Extreme Scale”, Computational Mechanics, 46(1):71-82, 2010.
  9. A.Yu. Galimov, O. Sahni, R.T. Lahey, M.S. Shephard, D.A. Drew and K.E. Jansen, “Parallel Adaptive Simulation of a Plunging Liquid Jet”, Acta Mathematica Scientia, 30B(2):522-538, 2010.
  10. M. Zhou, O. Sahni, M. S. Shephard, C.D. Carothers and K.E. Jansen, “Adjacency-based Data Reordering Algorithm for Acceleration of Finite Element Computations”, Scientific Programming, 18(2):107-123, 2010.
  11. J.C. Vaccaro, O. Sahni, J. Olles, K.E. Jansen and M. Amitay, “Experimental and Numerical Investigation of Active Control of Inlet Ducts”, International Journal of Flow Control, 1(2):133-154, 2009.
  12. O. Sahni, C.D. Carothers, M.S. Shephard and K.E. Jansen, “Strong Scaling Analysis of a Parallel, Unstructured, Implicit Solver and the Influence of the Operating System Interference”, Scientific Programming, 17(3):261-274, 2009.
  13. K. Devine, L. Diachin, J. Kraftcheck, K.E. Jansen, V. Leung, X. Luo, M. Miller, C. Ollivier-Gooch, A. Ovcharenko, O. Sahni, M.S. Shephard, T. Tautges, T. Xie and M. Zhou, “Interoperable Mesh Components for Large-Scale, Distributed-Memory Simulations”, Journal of Physics: Conference Series, 180:012011, 2009.
  14. O. Sahni, K.E. Jansen, C.A. Taylor and M.S. Shephard, “Automated Adaptive Cardiovascular Flow Simulations”, Engineering with Computers, 25(1):25-36, 2009.
  15. O. Sahni, K.E. Jansen, M.S. Shephard, C.A. Taylor and M.W. Beall, “Adaptive Boundary Layer Meshing for Viscous Flow Simulations”, Engineering with Computers, 24(3):267-285, 2008.
  16. M.S. Shephard, K.E. Jansen, O. Sahni and L.A. Diachin, “Parallel Adaptive Simulations on Unstructured Meshes”, Journal of Physics: Conference Series, 78:012053, 2007.
  17. O. Sahni, J. Mueller, K.E. Jansen, M.S. Shephard and C.A. Taylor, “Efficient Anisotropic Adaptive Discretization of the Cardiovascular System”, Computer Methods in Applied Mechanics and Engineering, 195(41-43):5634-5655, 2006.
  18. J. Mueller, O. Sahni, X. Li, K.E. Jansen, M.S. Shephard and C.A. Taylor, “Anisotropic Adaptive Finite Element Method for Modelling Blood Flow”, Computer Methods in Biomechanics and Biomedical Engineering, 8(5):295-305, 2005.

    Under preparation

  19. J.C. Vaccaro, Y. Elimelech, Y. Chen, O. Sahni, K.E. Jansen and M. Amitay, “Experimental and Numerical Investigation on Flow Control in a Compact Inlet Duct”, (under preparation).
  20. A. Ovcharenko, K. Chitale, O. Sahni, K.E. Jansen and M.S. Shephard, “Parallel Anisotropic Mesh Adaptation with Boundary Layers for Automated CFD Simulations”, (under preparation).

Conference Proceedings

    Published

  1. A. Ovcharenko, K. Chitale, O. Sahni, K.E. Jansen and M.S. Shephard “Parallel Adaptive Boundary Layer Meshing for Adaptive CFD Analysis”, Proceedings of the 21st International Meshing Roundtable, San Jose, CA, USA, Oct. 2012.
  2. X. Ge, J.T. Wen, M. Boucher and O. Sahni, “Low Order Model Identification and Controller Design for Active Flow Control”, Proceedings of the 2012 AIAA Guidance, Navigation, and Control Conference, Minneapolis, MN, USA, Aug. 2012.
  3. K. Miki, R.R. Upadhyay, O. Sahni and S.H. Cheung, “Bayesian Model Comparison and Selection for Quantifying Uncertainty in Active Graphite Nitridation”, Proceedings of the 50th AIAA Aerospace Sciences Meeting and Exhibit, Nashville, TN, USA, Jan. 2012.
  4. J. Cardillo, Y. Chen, G. Araya, O. Sahni, K.E. Jansen and L. Castillo, “DNS of a Turbulent Boundary Layer with Surface Roughness”, Proceedings of the 2011 - 1000 Islands Fluid Mechanics Meeting, Gananoque, ON, Canada, April 2011.
  5. M. Zhou, A. Ovcharenko, T. Xie, S. Seol, K.E. Jansen, O. Sahni and Mark S. Shephard, “Parallel Mesh Control Tools for Unstructured Meshes”, Proceedings of the 2010 SciDAC Conference, Chattanooga, TN, USA, July 2010.
  6. X. Ge, W. Gressick, J.T. Wen, O. Sahni and K.E. Jansen, “Low-Order Nonlinear Models for Active Flow Control of a Low L/D Inlet Duct”, Proceedings of the 2010 American Control Conference, Baltimore, MD, USA, June/July 2010.
  7. J.C. Vaccaro, Y. Elimelechi, Y. Chen, O. Sahni, M. Amitay and K.E. Jansen, “On the Interaction of Control Jets in a Short Duct”, Proceedings of the 5th AIAA Flow Control Conference, Chicago, IL, USA, June/July 2010.
  8. X. Ge, W. Gressick, J.T. Wen, O. Sahni and K.E. Jansen, “Investigation of a Low L/D Inlet Duct: Modeling, Optimal Sensor Placement and Closed Loop Control”, Proceedings of the 5th AIAA Flow Control Conference, Chicago, IL, USA, June/July 2010.
  9. J. Fu, N. Liu, O. Sahni, K.E. Jansen, M.S. Shephard and C.D. Carothers, “Scalable Parallel I/O Alternatives for Massively Parallel Partitioned Solver Systems”, Proceedings of the Workshop on Large-Scale Parallel Processing at the 24th IEEE International Parallel and Distributed Processing Symposium, Atlanta, GA, USA, April 2010.
  10. O. Sahni, M. Zhou, M.S. Shephard and K.E. Jansen, “Scalable Implicit Finite Element Solver for Massively Parallel Processing with Demonstration to 160K cores”, Proceedings of the 2009 ACM/IEEE Conference on Supercomputing, 2009 ACM Gordon Bell Finalist, Portland, OR, USA, Nov. 2009.
  11. J. Wood, O. Sahni, K.E. Jansen and M. Amitay, “Experimental and Numerical Investigation of Active Control of 3-D Flows”, Proceedings of the 39th AIAA Fluid Dynamics Conference and Exhibit, San Antonio, TX, USA, June 2009.
  12. A. Ovcharenko, O. Sahni, C.D. Carothers, K.E. Jansen and M.S. Shephard, “Subdomain Communication to Increase Scalability in Large-Scale Scientific Applications”, Proceedings of the 23rd International Conference on Supercomputing, Yorktown Heights, NY, USA, June 2009.
  13. M. Zhou, C.A. Figueroa, H.J. Kim, C.A. Taylor, O. Sahni and K.E. Jansen, “Parallel Adaptive Computation of Blood Flow in a 3D "Whole" Body Model”, Proceedings of the 2009 ASME Summer Bioengineering Conference, Lake Tahoe, CA, USA, June 2009.
  14. O. Sahni, J. Olles and K.E. Jansen, “Simulation of Flow Control in a Serpentine Duct”, Proceedings of the 47th AIAA Aerospace Sciences Meeting and Exhibit, Orlando, FL, USA, Jan. 2009.
  15. J.M. Rodriguez, O. Sahni, K.E. Jansen and R.T. Lahey, “A Parallel Adaptive Mesh Method for the Numerical Simulation of Multiphase Flows”, Proceedings of the 2008 Japan/US Seminar on Two-Phase Flow Dynamics, Santa Monica, CA, USA, Sept. 2008.
  16. J. Mueller, O. Sahni, K.E. Jansen, M.S. Shephard and C.A. Taylor, “A Tool for the Efficient FE-simulation of Cardio-vascular Flow”, Proceedings of the 2nd NAFEMS Seminar on Simulation of Complex Flows (CFD) - Applications and Trends, Niedernhausen/Wiesbaden, Hesse, Germany, April 2005.
  17. O. Sahni and A. Chatterjee, “Numerical Simulation of Shock Waves in Dust Gas Suspension”, Proceedings of the 5th AeSI Annual CFD Symposium, Bangalore, KA, India, Aug. 2002.