Journal articles

  1. Ananth, S. M., Nardini, M., Kozul, M., Vadlamani, N. R., & Sandberg, R. (2025) Performance of Rough-Ribbed Low-Pressure Turbine Blades Under Varying Loading and Operating Conditions. Journal of Turbomachinery, 1-23.
  2. Ananth, S. M., Sabapathy, S., Vadlamani, N. R., & Coull, J. (2024). The Impact of Real Roughness Features on Boundary Layer Transition. Flow, Turbulence and Combustion, 1-27.
  3. Issai Arasu, A., Shankar Sarvankar, S., & Vadlamani, N. R. (2024). Distortion Control in Intakes Subject to Strong Crosswinds Using Steady Vortex Generator Jets. AIAA Journal, 1-16.
  4. Sarvankar, S. S., Sarkar, D., Arasu, A. I., Mistry, C. S., & Vadlamani, N. R. (2024). Characteristics of Laminar Separation Bubble With Varying Leading-Edge Shapes and Deflections of the Trailing-Edge Flap. Journal of Engineering for Gas Turbines and Power, 146(10).
  5. AbdulGafoor, C. P., Rajananda, A., Shankar, A., & Vadlamani, N. R. (2024). Entropy damping and Bulk Viscosity based artificial compressibility methods on dynamically distorting grids. Computers & Fluids, 279, 106328.
  6. Arasu, A. I., & Vadlamani, N. R. (2024). Subsonic intake under crosswinds: Flow control using pulsed vortex generator jets. Physics of Fluids, 36(6).
  7. Ananth, S. M., Nardini, M., Vaid, A., Kozul, M., Rao Vadlamani, N., & Sandberg, R. D. (2024). Effects of Riblet Dimensions on the Transitional Boundary Layers Over High-Lift Turbine Blades. Journal of Turbomachinery, 146(3).
  8. Kurhade, N. N., Vadlamani, N. R., & Haridas, A. (2023). Neural Networks and guided Gene Expression Programming to predict Wall Pressure Spectra beneath Turbulent Boundary Layers. Physics of Fluids, 35(8).
  9. Sivaramakrishnan Malathi, A., Nardini, M., Vaid, A., Kozul, M., Vadlamani, N. R., & Sandberg, R. (2023). Riblet Performance Beneath Transitional and Turbulent Boundary Layers at Low Reynolds Numbers. AIAA Journal, 61(5), 1986-2001.
  10. Anmol G., Vadlamani, N. R., & Balaji, S., (2023). Aerothermal Performance of Axially Varying Winglet-Squealer Blade Tips. Journal of Turbomachinery, 145(7), 071009.
  11. Sivaramakrishnan Malathi, A., Nardini, M., Vaid, A., Vadlamani, N. R., & Sandberg, R. (2023). Profile Loss Reduction of High Lift Turbine Blades With Rough and Ribbed Surfaces. Journal of Turbomachinery, 145(2), 021001.
  12. Savsani, V., Govindarajan, B., & Vadlamani, N. R. (2023). Efficacy of line-based explicit and compact high-order finite difference schemes for hybrid unstructured grids. Computers and Fluids, 250, 105700
  13. Vaid, A., Vadlamani, N. R., Sivaramakrishnan Malathi, A., & Gupta, V. (2022). Dynamics of Bypass Transition Behind Roughness Element Subjected to Pulses of Free-Stream Turbulence. Physics of Fluids, 34 (11), 248, 114110 (Featured Article)
  14. Kakumani, H. C. V., & Vadlamani, N. R., & Tucker, P. G.(2022). On the use of high order central difference schemes for differential equation based wall distance computations. Computers and Fluids, 248, 105666
  15. Haridas, A., Vadlamani, N. R., & Minamoto, Y.(2022). Deep Neural Networks to Correct Sub-Precision Errors in CFD. Applications in Energy and Combustion Science, 12,100081.
  16. Trojak, W., Vadlamani, N. R., Tyacke, J., Witherden, F., & Jameson, A. (2022). Artificial compressibility approaches in flux reconstruction for incompressible viscous flow simulations. Computers and Fluids, 247, 105634.
  17. Nampelly, G., Malathi, A. S., Vaid, A., Vadlamani, N. R., Rengarajan, S., & Kontis, K. (2022). Surface Roughness Effects on Cavity Flows. Flow, Turbulence and Combustion, 109(4), 1215-1239.
  18. Yeung, A., Vadlamani, N. R., Hynes, T., & Sarvankar, S. (2019). Quasi 3D Nacelle Design to Simulate Crosswind Flows: Merits and Challenges. International Journal of Turbomachinery, Propulsion and Power, 4(3), 25.
  19. Tyacke J.C., Vadlamani, N. R., Trojak, W., Watson R., & Tucker, P. G. (2019). Turbomachinery Simulation Challenges and the Future. Progress in Aerospace Sciences, 10, 100554.
  20. Ma, Y., Cui, J., Vadlamani, N. R., & Tucker, P. G. (2019). Hierarchical Geometry Modelling Using the Immersed Boundary Method. Computer Methods in Applied Mechanics and Engineering, 355, 323-348.
  21. Vadlamani, N. R., Cao, T., Watson, R., & Tucker, P. G.(2019). Towards Future Installations: Mutual Interactions of Short Intakes with Modern High Bypass Fans. Journal of Turbomachinery, 141(8): 081013.
  22. Ma, Y., Vadlamani, N. R., Cui, J., & Tucker, P. G.(2019). Comparative Studies of RANS Versus Large Eddy Simulation for Fan–Intake Interaction. Journal of Fluids Engineering, 141(3), 031106.
  23. Ma, Y., Cui, J., Vadlamani, N. R., & Tucker, P. G. (2018).A Mixed-fidelity Numerical Study for Fan-distortion Interaction. Journal of Turbomachinery, 140.9, 091003.
  24. Ma, Y., Cui, J., Vadlamani, N. R., & Tucker, P. G.(2018). Effect of Fan on Inlet Distortion: Mixed-Fidelity Approach. AIAA Journal, 56(6), 2350-2360.
  25. Vadlamani, N. R., Tucker, P. G., & Durbin, P. (2018). Distributed Roughness Effects on Transitional and Turbulent Boundary Layers. Flow, Turbulence and Combustion, 100(3), 627-649. (Key scientific article in Advances in Engineering)
  26. Lin, Y., Vadlamani, N. R., Savill, M., & Tucker, P. G.(2017). Wall-resolved large eddy simulation for aeroengine aeroacoustic investigation. The Aeronautical Journal, 121(1242), 1032-1050.
  27. Cao, T., Vadlamani, N. R., Tucker, P. G., Smith, A. R., Slaby, M., & Sheaf, C. T. (2017). Fan–Intake Interaction Under High Incidence. Journal of Engineering for Gas Turbines and Power, 139(4), 041204.
  28. Cui, J., Vadlamani, N. R., & Tucker, P. G. (2017) Numerical investigation of secondary flows in a high-lift low pressure turbine. International Journal of Heat and Fluid Flow, (63), 149-157.
  29. Cui, J., Vadlamani, N. R., and Tucker, P. G. (2016), Numerical Investigation of Contrasting Flow Physics in Different Zones of a High-Lift Low-Pressure Turbine Blade, Journal of Turbomachinery, 138.1: 011003.
  30. Vadlamani, N. R., Jefferson-Loveday R.J., Tucker P. G. and Lardeau S., 2014, Large eddy simulations in Turbines: Influence of Roughness and Free-stream Turbulence, Flow, Turbulence and Combustion 92, 543-561.
  31. Tyacke J.C., Tucker P.G., Jefferson-Loveday R.J., Vadlamani, N. R., Watson R., Naqavi I., Yang X., 2014, Large eddy simulation for turbines: Methodologies, cost and future outlooks, Journal of Turbomachinery, 136.6: 061009.
  32. Vadlamani, N. R., Tucker P. G., Jefferson-Loveday R.J., and Coull J. D., 2013, Large eddy simulations in Low Pressure Turbines: Effect of Wakes at elevated Free-stream turbulence, Int. J. Heat and Fluid Flow 43, 85-95.
  33. Jefferson-Loveday R.J., Vadlamani, N. R., Tyacke J., and P. G. Tucker., 2013, High order detached eddy simulation, zonal LES and URANS of cavity and labyrinth seal flows, Int. J. for Numerical Methods in Fluids 73, 830-846.
  34. Lin Y., Savill M., Vadlamani, N. R., and Jefferson-Loveday R.J., 2013, Wall-Resolved Large Eddy Simulation over NACA0012 Airfoil, Int. J. of Aerospace Sciences 2, 149-162
  35. Jefferson-Loveday R.J., Tucker. P.G., Northall J., Vadlamani, N. R., 2013, Differential equation specification of integral turbulence length scales, Journal of Turbomachinery, 135, 031013.
  36. Tucker P.G., Jefferson-Loveday R.J., Tyacke J.C., and Vadlamani, N. R., 2012, Zonal RANS-LES modelling for turbines in aeroengines, Computational Thermal Sciences 4, 497-506.(Invited)
  37. Vadlamani, N. R. and Ramamurthi K., 2010, Role of axisymmetric axial velocity gradients in nonlinear disintegration of liquid sheets, Fluid Dynamics Research 42, 065505.
  38. Vadlamani, N. R. and Ramamurthi K., 2009, Internal instability of thin liquid sheets, Physics of Fluids 21, 092106.
  39. Gururaja Rao C., Vadlamani, N. R. and Krishna Das C., 2008, Simulation studies on Multi-mode Heat Transfer from an open cavity with a flush-mounted discrete heat source, Int. J. of Heat and Mass Transfer 44, 727-737.

Conference Proceedings

  1. Ananth, S. M., Nardini, M., Kozul, M., Vadlamani, N. R., & Sandberg, R. D. (2024, June). Performance of Rough-Ribbed Low-Pressure Turbine Blades Under Varying Loading and Operating Conditions. In Turbo Expo: Power for Land, Sea, and Air (Vol. 88063, p. V12BT30A039). American Society of Mechanical Engineers.
  2. Jha, S., Jayakumar, G., Gafoor, A., Vadlamani, N. R., & Ghosh, S. (2024). CFD Predictions of the Aerodynamic Characteristics of S1223 Airfoil at Low Reynolds’ Number. In AIAA AVIATION FORUM AND ASCEND 2024 (p. 4431).
  3. Ananth, S. M., Subhathra, S., Vadlamani, N. R., & Coull, J. (2023). Numerical Investigation of Real Roughness Scales on Boundary Layer Transition. In proceedings of 10th International Symposium on Turbulence, Heat and Mass Transfer, THMT-23, Rome, Italy, 11-15 September 2023.
  4. Vaid, A., Ananth, S. M., Vadlamani, N. R., & Gupta, V. (2023). Sensitivity of Boundary Layer Transition to Roughness Spacing and Acoustic Forcing. In proceedings of 10th International Symposium on Turbulence, Heat and Mass Transfer, THMT-23, Rome, Italy, 11-15 September 2023.
  5. Kaluva, S. T., Kumar, R. R., & Vadlamani, N. R. (2023). Framework to Characterize Aeroacoustic Loads Beneath High-Speed Boundary Layers. In 25th AIAA International Space Planes and Hypersonic Systems and Technologies Conference (p. 3018).
  6. Arasu, A. I., Manish, M., & Vadlamani, N. R. (2022). "Application of Machine Learning Techniques in Temperature Forecast." 2022 21st IEEE International Conference on Machine Learning and Applications (ICMLA). IEEE, 2022.
  7. Sivaramakrishnan Malathi, A., Nardini, M., Vaid, A., Vadlamani, N. R, & Sandberg, R. D. (2022). Profile Loss Reduction of High Lift Turbine Blades With Rough and Ribbed Surfaces, GT2022-82558, In proceedings of ASME Turbo Expo, Rotterdam, Netherlands, June 13-17, 2022.
  8. Sumit Saravankar, Adrian Arasu, Vadlamani, N. R, “Crosswind Aerodynamic Analysis Using Quasi 3d Ducts”, GT2022-82964, In proceedings of ASME Turbo Expo, Rotterdam, Netherlands, June 13-17, 2022.
  9. Anmol Garg, Vadlamani, N. R, Srinivasan B., “Aerothermal Performance of Axially Varying Winglet-Squealer Blade Tips”, GT2022-82947, In proceedings of ASME Turbo Expo, Rotterdam, Netherlands, June 13-17, 2022.
  10. Vaid, A., Vadlamani, N. R, & Sivaramakrishnan Malathi, A. (2022). Dynamics of Bypass Transition with roughness and pulses of free-stream turbulence. In AIAA SCITECH 2022 Forum (p. 0453), National Harbor, MD and Online, Jan 23-27.
  11. Savsani, V., Govindarajan, B., & Vadlamani, N. R. (2022). Line-based high-order methods for unstructured grids. In AIAA AVIATION 2022 Forum, Chicago, IL and Virtual, June 27 - July 1 (p. 4158)
  12. Nampelly, G., Sivaramakrishnan Malathi, A., Vadlamani, N. R, Rengarajan, S., & Kontis, K. (2022). Surface Roughness Benefits in Open Cavity Flows. In AIAA SCITECH 2022 Forum, National Harbor, MD and Online, Jan 23-27 (p. 0473).
  13. Sivaramakrishnan Malathi, A., Nardini, M., Vaid, A., Vadlamani, N. R, & Sandberg, R. D. (2022). On the efficacy of riblets toward drag reduction of transitional and turbulent boundary layers. In AIAA SCITECH 2022 Forum (p. 0472), National Harbor, MD and Online, Jan 23-27.
  14. Kumar, A., & Vadlamani, N. R (2021). Inverse Design of Airfoils Using Convolutional Neural Network and Deep Neural Network. In Gas Turbine India Conference (Vol. 85536, p. V001T02A001). American Society of Mechanical Engineers.
  15. Haridas, A., & Vadlamani, N. R (2021). Modelling Wall-Pressure Spectra in Turbulent Boundary Layers Using Neural Networks. In Gas Turbine India Conference (Vol. 85536, p. V001T02A006). American Society of Mechanical Engineers.
  16. Ganesh N, Ananth S. M, Vadlamani N. R., Sriram R. and Kontis K., "Surface roughness effects on cavity flows," 13th International ERCOFTAC ETMM symposium, Rhodes, Greece, 2021.
  17. Chandra Vamsi K. H., Vadlamani, N. R., " A high-order differential equation based unsteady wall distance solver,” 8th International And 47th National Conference On Fluid Mechanics And Fluid Power, Dec 2020, FMFP2020_058
  18. Sumit Saravankar, Adrian Arasu, Vadlamani, N. R., " Effect of Crosswind Flow on Intake Aerodynamics,” 8th International And 47th National Conference On Fluid Mechanics And Fluid Power, Dec 2020, FMFP2020_176
  19. Ganesh N, Ananth S. M, Vadlamani N. R., Sriram R. and Kontis K., "Eddy Resolving Simulations of Shear Layer Instabilities in Open cavity flows,” 8th International And 47th National Conference On Fluid Mechanics And Fluid Power, Dec 2020, FMFP2020_217
  20. Achu, S., Vadlamani, N. R., "Entropically Damped Artificial Compressibility Solver Using Higher Order Finite Difference Schemes on Curvilinear and Deforming Meshes", In AIAA Scitech 2021 Forum (p. 0634), Virtual Conference, 2021.
  21. Yeung, A., Vadlamani, N. R., Hynes, T.P., "Quasi 3D nacelle design to simulate crosswind flows: merits and challenges", In proceedings of 13th European Turbomachinery Conference, Lausanne, Switzerland, April 8-12, 2019
  22. Ma, Y., Cui, J., Vadlamani, N. R., & Tucker, P., "A Mixed-Fidelity Numerical Study for Fan–Distortion Interaction," In proceedings of ASME Turbo Expo 2018, Oslo, Norway, June 11-15.
  23. Vadlamani, N. R., Tucker P. G., Durbin, P., "Subsonic boundary layer transition over rough surfaces: A numerical study," 17th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC, Maui, Hawaii, Dec 16-21, 2017 (Extended Abstract)
  24. Ma, Y., Cui, J., Vadlamani, N. R., Tucker., P "Effect of Fan on Inlet Distortion: Mixed-Fidelity Approach," 17th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC, Maui, Hawaii, Dec 16-21, 2017
  25. Vadlamani, N. R., Tucker P. G., “Eddy resolving simulations of intake under crosswinds, ” In proceedings of Direct and Large Eddy Simulations 11, Pisa, Italy, 28-31 May, 2017
  26. Watson, R., Cui, J., Ma, Y., Tyacke, J., Vadlamani, N.R., Alam, M.F., Dai, Y., Tucker, P.G., Cao, T., Hield, P. and Wilson, M., 2017, June. Improved Hierarchical Modelling for Aerodynamically Coupled Systems. In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition (pp. V02BT41A056-V02BT41A056)
  27. Sengupta A; Vadlamani, N. R., Tucker P. G; “Roughness induced transition in low pressure turbines,” In proceedings of AIAA SciTech, Grapevine, Texas, January 9-13, 2017
  28. Cao T., Vadlamani, N. R., Tucker P. G., Smith A., Slaby M., and Sheaf C., "Fan-Intake interaction under high incidence," paper no. GT2016-56561, In proceedings of ASME Turbo Expo, Seoul, South Korea, June 13-17, 2016.
  29. Vadlamani, N. R., Tucker P. G., "Intake lip separation control using Plasma Actuators," 16th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC, Honolulu, April 9-16, 2016 (Extended Abstract)
  30. Cui J., Vadlamani, N. R. and Tucker, PG "Numerical investigation of secondary flows in a high-lift low pressure turbine," In proceedings of 8th International Symposium on Turbulence, Heat and Mass Transfer, , Sarajevo, Bosnia and Herzegovina, September 15-18, 2015
  31. Cui J., Vadlamani, N. R. and Tucker, PG "Numerical investigation of contrasting flow physics in different zones of a high-lift low pressure turbine blade," paper no. GT2015-43200 In proceedings of ASME Turbo Expo 2015, Palais des Congrès, Montréal, June 15-19, 2015
  32. Vadlamani, N. R., Tucker P. G., Jefferson-Loveday R.J., and Coull J. D., “Investigation of wake induced transition in low-pressure turbines using large eddy simulation,” paper no. GT2013-94418, In proceedings of ASME Turbo Expo, San Antonio, Texas, June 3-7, 2013.(IGTI Turbomachinery committee Best Paper Award)
  33. Tyacke J.C., and Tucker P.G., and Jefferson-Loveday R.J., and Vadlamani, N. R., and Watson R., and Naqavi I., and Yang X., (2013) "LES for turbines: methodologies, cost and future outlook," GT2013-94416, In proceedings of ASME Turbo Expo, San Antonio, Texas, June 3-7, 2013.
  34. Vadlamani, N. R., Jefferson-Loveday R.J., Tucker P. G. and Lardeau S., “Large eddy simulations in Turbines: Influence of Roughness and free-stream Turbulence,” In proceedings of Turbulence, Heat and Mass Transfer, Palermo, Sicily, Italy, September 24-27, 2012.
  35. Jefferson-Loveday R.J., Vadlamani, N. R., Tyacke J.C. and Tucker P.G., "High-order DES and zonal LES of a labyrinth seal," Paper No. AIAA-2012-0739, In 50th AIAA Aerospace Sciences Meeting and Exhibit, , Nashville, Tennessee, USA, 09-1-2012 to 12-1-2012.

Book Chapter

Invited talks and presentations

  • "Non-Axisymmetric End-wall Contouring of Turbine Stator", Webinar on Aircraft Propulsion and Gas Turbine Technologies in India, July 2023.
  • "Transformation of governing equations from physical to computational space", presented at AICTE-VTU joint training programme on "Computational Fluid Dynamics" organized by Visvesvaraya Technological University in May 2022.
  • "Eddy resolving simulations of turbulent flows in turbomachines", presented at AICTE sponsored short term course on "Theory and Analysis of Compressible Turbulence" (TACT-2021), 22-27th March, 2021
  • "Turbomachinery Simulations: Progress and Challenges", presented at AICTE sponsored short term training program on "Applied Computational Fluid Dynamics for Automotive, Space and Defence Sector” A D PATEL institute of technology, 1st-5th March, 2021
  • “Turbulent Flows in Turbomachines: Role of High Performance Computing”, mini-symposium on Advances in Computational Science and Parallel Computing, ADENA conference, IIT Guwahati, Oct 12-15 2020
  • "High-Fidelity Simulations in Turbomachines using distributed and shared memory architectures" HPC Workshop, IIT Madras, July 2020
  • "LES/DNS with IBM", presented at AICTE sponsored short term course on "Advanced Computational Techniques for Fluid Dynamics: Grid-Free and Immersed-Boundary Methods with Applications" (ACTFD-2019), November, 2019
  • "High Fidelity Eddy-Resolving Simulations to Capture Surface Roughness Effects in Gas Turbines", talk at 6th Prof. P.J. Paul Memorial Combustion Researchers' meet, March 2019.
  • “Multi-fidelity simulations in Turbomachines,” Culture of Continuous Learning (CCL) talk at Hindustan Aeronautics Limited, Bangalore, March 2019 (Invited talk)
  • “Eddy resolving simulations to capture roughness effects on boundary layers,” University of Huddersfield, April 2018 (Invited talk)
  • “High-fidelity and Low-order fan modelling for intake interaction,” Rolls Royce aerothermal conference, July 21-22, 2016. (Invited talk)
  • "Fasten your seat belts: We shall experience turbulence," Graduate seminar talk, St. Catharine's college, Cambridge (Invited talk)
  • "Multi-mode transition in low-pressure turbines", CFD Annual Review, Rolls-Royce Derby, November 18-19, 2012. (Invited talk)
  • Presented at UK Turbulence Consortium (2011, 2012, 2013, 2017)
  • "Prediction of laminar separation bubble using URANS approach," 19th UK National Conference of the Association for Computational Mechanics in Engineering, April 5-6, 2011