Vinod K. Lakshminarayan
 

Publications


Peer Reviewed Articles

  1. Roget, B., Sitaraman, J., Lakshminarayan, V., and Wissink, A., “Prismatic Mesh Generation Using Minimum Distance Fields,” Computers & Fluids, Vol. 200, 104429 (2020). (link)

  2. Jude, D., Sitaraman, J., Lakshminarayan, V., and James Baeder, “An Overset Generalised Minimal Residual Method for the Multi-Solver Paradigm,” International Journal of Computational Fluid Dynamics, Vol. 34, (1), pp. 61-74, (2020) (link)

  3. Walther, C. M., Saemi, F., Benedict, M., and Lakshminarayan, V. K., “Symmetric Versus Asymmetric Pitching of a Cycliodal Rotor Blade at Ultra-Low Reynolds Numbers,” Journal of Aircraft, Vol 56, (3) (2019). (link)

  4. Lakshminarayan, V. K., Sitaraman, J., Wissink, M., “Sensitivity of Rotorcraft Hover Predictions to Mesh Resolution in Strand Grid Framework,” AIAA Journal, Vol. 57, (3), pp. 3173-3184 (2019). (link)

  5. Lakshminarayan, V. K., Sitaraman, J., and Wissink, A. M., “Application of Strand Grid Framework to Complex Rotorcraft Simulations,” Journal of the American Helicopter Society, 62, 012008 (2017). (link)

  6. Lakshminarayan, V. K., Sitaraman, J., Roget, B. and Wissink, A. M., “Development and Validation of a Multi-Strand Solver for Complex Aerodynamic Flows,” Computers & Fluids, Vol. 147, pp. 41-62 (2017). (link)

  7. Benedict, M., Lakshminarayan, V. K., Pino, J., and Chopra, I., “Aerodynamics of a Small-Scale Vertical Axis Wind Turbine with Dynamic Blade Pitching,” AIAA Journal, Vol. 54, (3), pp. 924-935 (2016). (link)

  8. Lakshminarayan, V. K., and Duraisamy, K., “Adjoint-based Estimation and Control of Spatial, Temporal and Stochastic Approximation Errors in Unsteady Flow Simulations,” Computers & Fluids, Vol. 121, pp. 180-191 (2015). (link)

  9. Aranake, A. C., Lakshminarayan, V. K., and Duraisamy, K., “Computational Analysis of Shrouded Wind Turbine Configurations using a 3-dimensional RANS Solver,” Renewable Energy, Vol. 75, pp. 818-832 (2015). (link)

  10. Lind, A. H., Jarugumilli, T., Benedict, M., Lakshminarayan, V. K., Jones, A. R., and Chopra, I., “Flow Field Studies on a Micro-Air-Vehicle-Scale Cycloidal Rotor in Forward Flight,” Experiments in Fluids, 55:1826 (2014). (link)

  11. Lakshminarayan, V. K., Farhat, C., and Main, A., “An Embedded Boundary Framework for Compressible Turbulent Flow and Fluid-Structure Computations on Structured and Unstructured Grid,” International Journal of Numerical Methods in Fluids, Vol. 76, (6), pp. 366-395 (2014). (link)

  12. Aranake, A. C., Lakshminarayan, V. K., and Duraisamy, K., “Assessment of low-order theories for analysis and design of shrouded wind turbines using CFD,” Journal of Physics: Conference Series, 524, 012077 (2014). (link)

  13. Benedict, M., Jarugumilli, T., Lakshminarayan, V. K., and Chopra, I., “Effect of Flow Curvature on the Forward Flight Performance of a MAV-Scale Cycloidal Rotor,” AIAA Journal, Vol. 52, (6), pp. 1159-1169 (2014). (link)

  14. Farhat, C., and Lakshminarayan, V. K., “An ALE Formulation of Embedded Boundary Methods for Tracking Boundary Layers in Turbulent Fluid-Structure Interaction Problems,” Journal of Computational Physics, Vol. 263, pp. 53-70 (2014). (link)

  15. Lakshminarayan, V. K., Kalra, T. S., and Baeder, J. D., “Detailed Computational Investigation of a Hovering Microscale Rotor in Ground Effect,” AIAA Journal, Vol. 51, (4), pp. 893-909 (2013). (link)

  16. Lakshminarayan, V. K., and Baeder, J. D., “Technical Note: Improved Shroud Design for Rotary Wing MAV Applications Based on Computational Analysis,” Journal of the American Helicopter Society, 57, 045001 (2012). (link)

  17. Lakshminarayan, V. K., and Baeder, J. D., “Computational Investigation of Microscale Shrouded Rotor Aerodynamics in Hover,” Journal of the American Helicopter Society, 56, 042002 (2011). (link)

  18. Baeder, J., Duraisamy, K., and Lakshminarayan, V. K., “RANS Predictions of Complex Hovering Rotor Configurations: From Micro Scale to Full Scale,” Computational Fluid Dynamics Journal, Vol. 18, (3-4):43, pp. 539-579 (2011). (Manuscript PDF)

  19. Lakshminarayan, V. K., and Baeder, J. D., “Computational Investigation of Microscale Coaxial-Rotor Aerodynamics in Hover,” Journal of Aircraft, Vol. 47, (3), pp. 940-955 (2010). (link)

  20. Lakshminarayan, V. K., and Baeder, J. D., “Computational Investigation of Micro Hovering Rotor Aerodynamics,” Journal of the American Helicopter Society, 55, 022001 (2010). (link)

  21. Lakshminarayan, V. K., and Baeder, J. D., “High-Resolution Computational Investigation of Trimmed Coaxial Rotor Aerodynamics in Hover,” Journal of the American Helicopter Society, 54, 042008 (2009). (link)


Conference Proceedings

  1. Lakshminarayan, V. K., i Sitaraman, J., and Wissink, A. M., “Towards Adaptive Surface Meshing in Strand Grid Framework,” AIAA paper-2021-0476, AIAA SciTech 2021 Forum, Virtual Event, January 11-15 & 19-21, 2021. (Download PDF)

  2. Lakshminarayan, V. K., Sitaraman, J., Jain, R. and Wissink, A. M., “Improvements to Automated Strand Meshing Capabilities for Rotary Wing Applications,” Vertical Flight Society, Transformative Vertical Flight 2020, San Jose, CA, January 21-23, 2020. (Download PDF)

  3. Tran, S., Lakshminarayan, V. K., Sitaraman, J., and Wissink, A. M., “Transition Modeling in HPCMP CREATETM-AV HELIOS v9 ,” AIAA paper-2019-1111, AIAA SciTech 2019 Forum, San Diego, CA, January 7-11, 2019. (Download PDF)

  4. Jude, D., Sitaraman, J., Lakshminarayan, V. K., and Baeder, J. D., “An Overset Generalized Minimal Residual Method for CFD on Heterogeneous Compute Architechtures,” AIAA paper-2019-0099, AIAA SciTech 2019 Forum, San Diego, CA, January 7-11, 2019. (Download PDF)

  5. Roget, B., Sitaraman, J., Lakshminarayan, V. K., and Wissink, A. M., “Prismatic Mesh Generation Using Minimum Distance Fields,” Tenth International Conference on Computational Fluid Dynamics (ICCFD10), Barcelona, Spain, July 9-13, 2018. (Download PDF)

  6. Jude, D., Sitaraman, J., Lakshminarayan, V. K., and Baeder, J. D., “An Overset Generalized Minimal Residual Method for the Multi-Solver Paradigm in Helios,” AIAA paper-2018-3247, 2018 Fluid Dynamics Conference, Atlanta, GA, June 25-29, 2018. (Download PDF)

  7. Tran, S., Lakshminarayan, V. K., Sitaraman, J., and Wissink, A. M., “Verification of Turbulence Models Available in CREATETM-AV HELIOS v8,” AIAA paper-2018-1511, 2018 AIAA Aerospace Sciences Meeting, Kissimmee, FL, January 8-12, 2018. (Download PDF)

  8. Lakshminarayan, V. K., Sitaraman, J., Roget, B., and Wissink, A. M., “Simulation of Complex Geometries Using Automatically Generated Strand Meshes,” AIAA paper-2018-0028, 2018 AIAA Aerospace Sciences Meeting, Kissimmee, FL, January 8-12, 2018. (Download PDF)

  9. Walther, C. M., Coleman, D. A., Benedict, M., and Lakshminarayan, V. K., “Experimental and Computational Studies to Understand Unsteady Aerodynamics of Cycloidal Rotors in Hover at Ultra-low Reynolds Numbers ,” American Helicopter Society 73rd Annual Forum Proceedings, Fort Worth, TX, May 9-11, 2017. (Download PDF)

  10. Lakshminarayan, V. K., Sitaraman, J., and Wissink, A. M., “Sensitivity of Rotorcraft Hover Predictions to Mesh Resolution in Strand Grid Framework,” AIAA paper-2017-1672, 55th AIAA Aerospace Sciences Meeting, Grapevine, TX, January 9-13, 2017. (Download PDF)

  11. Sitaraman, J., Lakshminarayan, V. K., , Roget, B., and Wissink, A. M., “Progress in Strand Mesh Generation and Domain Connectivity for Dual-Mesh CFD simulations,” AIAA paper-2017-0288, 55th AIAA Aerospace Sciences Meeting, Grapevine, TX, January 9-13, 2017. (Download PDF)

  12. Lakshminarayan, V. K., Sitaraman, J., and Wissink, A. M., “Application of Strand Grid Framework to Complex Rotorcraft Simulations,” AIAA paper-2016-3130, 34th AIAA Applied Aerodynamics Conference, Washington D.C., June 13-17, 2016. (Download PDF)

  13. Lakshminarayan, V. K., Sitaraman, J., Roget, B., and Wissink, A. M., “Development and Validation of a Multi-Strand Solver for Complex Aerodynamic Flows,” AIAA paper-2016-1581, 54th Aerospace Sciences Meeting, San Diego, CA, January 4-8, 2016. (Download PDF)

  14. Leffell, J. I, Sitaraman, J., Lakshminarayan, V. K., and Wissink, A. M., “Towards Efficient Parallel-in-Time Simulation for Periodic Flows,” AIAA-2016-0066, 54th Aerospace Sciences Meeting, San Diego, CA, January 4-8, 2016. (Download PDF)

  15. Benedict, M., Lakshminarayan, V. K., Garber, J., and Chopra, I., “Experimental and Computational Flow Field Studies of a Small-scale Vertical Axis Wind Turbine with Dynamic Blade Pitching,” American Helicopter Society 71st Annual Forum Proceedings, Virginia Beach, VA, May 5-7, 2015. (Download PDF)

  16. Duraisamy, K., and Lakshminarayan, V. K., “Flow Physics and Performance of Vertical Axis Wind Turbine Arrays,” AIAA paper-2014-3139, 32nd AIAA Applied Aerodynamics Conference, Atlanta, GA, June 16-20, 2014. (Download PDF)

  17. Lakshminarayan, V. K., and Farhat, C., “Nonlinear Aeroelastic Analysis of Highly Flexible Flapping Wings Using an ALE Formulation of Embedded Boundary Method,” AIAA paper-2014-0221, 52nd Aerospace Sciences Meeting, National Harbor, MD, January 13-17, 2014. (Download PDF)

  18. Kalra, T. S., Lakshminarayan, V. K., and Baeder, J. D., “Effect of Tip Geometry on a Hovering Rotor in Ground Effect: A Computational Study,” AIAA paper-2013-2542, 31st AIAA Applied Aerodynamics Conference, San Diego, CA, June 24-27, 2013. (Download PDF)

  19. Lakshminarayan, V. K., and Farhat, C., “An ALE-Eulerian Formulation of Embedded Boundary Methods for Turbulent Fluid-Structure Interaction Problems,” AIAA paper-2013-2441, 21st AIAA Computational Fluid Dynamics Conference, San Diego, CA, June 24-27, 2013. (Download PDF)

  20. Jarugumilli, T., Lind, A. H., Benedict, M., Lakshminarayan, V. K., Jones, A. R., and Chopra, I., “Experimental and Computational Flow Field Studies of a MAV-scale Cycloidal Rotor in Forward Flight,” American Helicopter Society 69th Annual Forum Proceedings, Phoenix, AZ, May 21-23, 2013. (Download PDF)

  21. Benedict, M., Lakshminarayan, V. K., Pino, J., and Chopra, I., “Fundamental Understanding of the Physics of a Small-Scale Vertical Axis Wind Turbine with Dynamic Blade Pitching: An Experimental and Computational Approach,” AIAA paper-2013-1553, 54th AIAA Structural Dynamics, and Materials Conference, Boston, MA, April 8-11, 2013. (Download PDF)

  22. Aranake, A. C, Lakshminarayan, V. K., and Duraisamy, K., “Computational Analysis of Shrouded Wind Turbine Configurations,” AIAA paper-2013-1211, 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, Grapevine, TX, January 7-10, 2013. (Download PDF)

  23. Lakshminarayan, V. K., Duraisamy, K., and Alonso, J., “Adjoint-Based Estimation and Control of Spatial, Temporal and Stochastic Approximation Errors for Aerodynamic Applications,” AIAA paper-2013-518, 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, Grapevine, TX, January 7-10, 2013. (Download PDF)

  24. Aranake, A. C, Lakshminarayan, V. K., and Duraisamy, K., “Assessment of Transition Model and CFD Methodology for Wind Turbine Flows,” AIAA paper-2012-2720, 42nd AIAA Fluid Dynamics Conference and Exhibit, New Orleans, LA, June 25-28, 2012. (Download PDF)

  25. Malhan, R., Lakshminarayan, V. K., Baeder, J. D., Chopra, I., Masarati, P., Morandini, M., and Quaranta, G., “CFD-CSD Coupled Aeroelastic Analysis of Flexible Flapping Wings for MAV Applications: Methodology Validation,” AIAA paper-2012-1636, 53rd AIAA Structural Dynamics, and Materials Conference, Honolulu, HI, April 23-26, 2012. (Download PDF)

  26. Benedict, M., Jarugumilli, T., Lakshminarayan, V. K., and Chopra, I., “Experimental and Computational Studies to Understand the Role of Flow Curvature Effects on the Aerodynamic Performance of a MAV-Scale Cycloidal Rotor in Forward Flight,” AIAA paper-2012-1629, 53rd AIAA Structural Dynamics, and Materials Conference, Honolulu, HI, April 23-26, 2012. (Download PDF)

  27. Kalra, T. S., Lakshminarayan, V. K., Baeder, J. D., and Thomas, S., “Methodological Improvements for Computational Study of Hovering Micro-Rotor in Ground Effect,” AIAA paper-2011-3552, 20th AIAA Computational Fluid Dynamics Conference, Honolulu, HI, June 27-30, 2011. (Download PDF)

  28. Thomas, S., Lakshminarayan, V. K., Kalra, T. S., and Baeder, J. D., “Eulerian-Lagrangian Analysis of Cloud Evolution using CFD Coupled with a Sediment Tracking Algorithm,” American Helicopter Society 67th Annual Forum Proceedings, Virginia Beach, VA, May 3-5, 2011. (Download PDF)

  29. Malhan, R., Lakshminarayan, V. K., Baeder, J. D., and Chopra, I., “Investigation of Aerodynamics of Rigid Flapping Wings for MAV Applications: CFD Validation,” Proceedings of the American Helicopter Society International Specialists' Meeting on Unmanned Rotorcraft and Network Centric Operations, Tempe, AZ, January 25-27, 2011. (Download PDF)

  30. Yang, K., Lakshminarayan, V. K., and Baeder, J. D., “Simulation of a Cycloidal Rotor System Using an Overset RANS Solver,” American Helicopter Society 66th Annual Forum Proceedings, Phoenix, AZ, May 11-13, 2010. (Download PDF)

  31. Kalra, T. S., Lakshminarayan, V. K., and Baeder, J. D., “CFD Validation of Micro Hovering Rotor in Ground Effect,” American Helicopter Society 66th Annual Forum Proceedings, Phoenix, AZ, May 11-13, 2010. (Download PDF)

  32. Lakshminarayan, V. K., and Baeder, J. D., “Computational Investigation of Micro-Scale Shrouded Rotor Aerodynamics in Hover,”Proceedings of the American Helicopter Society International Specialists' Meeting on Aeromechanics, San Francisco, CA, January 20-22, 2010. (Download PDF)

  33. Lakshminarayan, V. K., and Baeder, J. D., “Numerical Study of the Effects of Leading and Trailing Edge Geometries and Planform on Micro Hovering Rotor,”Proceedings of the American Helicopter Society International Specialists' Meeting on Unmanned Rotorcraft Systems, Phoenix, AZ, January 20-22, 2009. (Download PDF)

  34. Lakshminarayan, V. K., and Baeder, J. D., “Computational Investigation of Small Scale Coaxial Rotor Aerodynamics in Hover,” AIAA paper-2009-1069, 47th AIAA Aerospace Sciences Meeting and Exhibit, Orlando, FL, January 5-May 9, 2009. (Download PDF)

  35. Lakshminarayan, V. K., and Baeder, J. D., “Further Investigation of Micro Hovering Rotor Aerodynamics using Time Accurate Computations,” American Helicopter Society 64th Annual Forum Proceedings, Montreal, Quebec, Canada, April 29-May 1, 2008. (Download PDF)

  36. Lakshminarayan, V. K., and Baeder, J. D., “High Resolution Computational Investigation of Trimmed Coaxial Rotor Aerodynamics in Hover,” Proceedings of the American Helicopter Society International Specialists' Conference on Aeromechanics, San Francisco, CA, January 23-25, 2008. (Download PDF)

  37. Lakshminarayan, V. K., Duraisamy, K. and Baeder, J. D., “Computational Investigation of Coaxial Rotor Aerodynamics in Hover,” American Helicopter Society 63rd Annual Forum Proceedings, Virginia Beach, VA, May 1-3, 2007. (Download PDF)

  38. Lakshminarayan, V. K., and Baeder, J. D., “Computational Investigation of Micro Hovering Rotor Aerodynamics,” Proceedings of the American Helicopter Society International Specialists' Meeting on Unmanned Rotorcraft, Chandler, AZ, January 23-25, 2007. (Download PDF)

  39. Lakshminarayan, V. K., Bush, B. L., Duraisamy, K. and Baeder, J. D., “Computational Investigation of Micro Hovering Rotor Aerodynamics,” AIAA paper-2006-2819, 24th AIAA Applied Aerodynamics Conference, San Francisco, CA, June 5-8, 2006. (Download PDF)


Invited Talks

  1. “Development and Validation of a Multi-Strand Solver for Complex Aerodynamic Flows,” Advanced Modeling & Simulation (AMS) Seminar Series, NASA Ames Research Center, Moffett Field, CA, March 8, 2016. (Link)

  2. “Computational Analysis of the Flow Physics of Complex MAV-scale Systems using a Compressible Rans-based Approach,” Seminar at NASA Ames Research Center, Moffett Field, CA, September 3, 2014.

  3. “Nonlinear Aeroelastic Analysis of Highly Flexible Flapping Wings Using an ALE Formulation of Embedded Boundary Method,” Seminar at US Army Research Laboratory, Aberdeen Proving Ground, MD, January 17, 2014. (Download PDF)

  4. “Computational Study of the Aerodynamics of Hover-Capable Micro Air Vehicles using Compressible RANS-based Approach and Overset Grid Methodology,” Seminar at Indian Institute of Science, Bangalore, India, August 18, 2010. (Download PDF)


International Conference Presentations

  1. Lakshminarayan, V. K., Sitaraman, J., and Wissink, A. M., “Application of Strand Grid Framework to Complex Rotorcraft Simulations,” 13th Symposium on Overset Composite Grids and Solution Technology, Mukilteo, WA, October 17-20, 2016. (Download PPT)

  2. Lakshminarayan, V. K., and Farhat, C., “An ALE Formulation of Embedded Boundary Methods for Turbulent Fluid-Structure Interaction Problems,” 12th U.S. National Congress on Computational Mechanics, Raleigh, NC, July 22-25, 2013. (Download PDF)

  3. Lakshminarayan, V. K., and Baeder, J. D., “Application of Overset Grid Methodology to Micro Rotor Simulations,” 10th Symposium on Overset Composite Grids and Solution Technology, Moffett Field, CA, September 20-23, 2010. (Download PDF)

  4. Baeder J. D., Duraisamy, K., and Lakshminarayan, V. K., “Rotorcraft Hovering Wake Predictions: From Micro-scale to Full-Scale,” ARO Workshop on Vortex Dominated Flows, NIA, Hampton, VA, June 18-19, 2009.

  5. Lakshminarayan, V. K., and Baeder, J. D., “Numerical Study of the Effects of Planform on Micro Hovering Rotor,” ARO Rotorcraft Wake Prediction Basic Research Workshop, Atlanta, GA, March 16-17, 2009. (Download PDF)