Flame-Fluids-Energy Lab

Saha Research Group

Publications

Patent

  1. A. Saha, V. R. Unni, E. A. Ruiz, R. I. Sujith, and J. Dhadphale. Device and method to predict onset of oscillatory instability in systems with turbulent flows (Status: Provisional), US Provisional Patent ApplicationNumber US1234567A, filed on 07-16-2020

Book Chapter

  1. A. Saha, P. Deepu, and S. Basu. Transport phenomena in functional droplets. In Droplet and Spray Transport: Paradigms and Applications, pages 55–81. Springer, 2018

  2. S. Basu, S. Chaudhuri, B. M. Cetegen, and A. Saha. Mixing dynamics in interacting vortices. In Green Energy and Technology, pages 317–343. Springer, 2018

Peer-Reviewed Journal Articles (* as the corresponding author):

  1. Y. Wei, Z. Mu, Y. Zhang, Y. Yang, S. Liu, C. K. Law, and A. Saha. Dynamics and morphology of droplet penetrating a soap film. Journal of Fluid Mechanics, 933, 2022

  2. *S. Bagchi, S. Basu, S. Chaudhuri, and A. Saha. Penetration and secondary atomization of droplets impacted on wet facemasks. Physical Review Fluids, 6(11):110510, 2021, (Highlighted in a Physics magazine, APS’ online magazine)

  3. *E. A. Ruiz, V. R. Unni, I. Pavithran, R. I. Sujith, and A. Saha, Convolutional neural networks to predict the onset of oscillatory instabilities in turbulent systems, Chaos. 31:093131, 2021

  4. S. Majee, A. Saha, S. Chaudhuri, D. Chakravortty, and S. Basu, Two-dimensional mathematical framework for evaporation dynamics of respiratory droplets, Physics of Fluids. 33:103302, 2021

  5. *A. Potnis, V. R. Unni, H. Im, and A. Saha. Extinction of non-equidiffusive premixed flames with oscillating strain rates. Combustion and Flame, 234:111617, 2021

  6. I. Pavithran, V. R. Unni, A. Saha, A. J. Varghese, P. R. I. Sujith, N. Marwan, and J. Kurths. Predicting amplitude of thermoacoustic instability using universal scaling behaviour. Journal of Engineering for Gas Turbines and Power, 08, 2021

  7. S. Chaudhuri, A. Saha, and S. Basu. An opinion on the multi-scale nature of covid-19 type disease spread. Current Opinion in Colloid Interface Science, 54: 101462, 2021

  8. A. Rasheed, S. Sharma, P. Kabi, A. Saha, S. Chaudhuri, and S. Basu. Precipitation dynamics of surrogate respiratory sessile droplets leading to possible fomites. Journal of Colloid and Interface Science, 600:1–13, 2021

  9. *Z. Liu, V. R. Unni, S. Chaudhuri, R. Sui, C. K. Law, and A. Saha. Self-turbulization in cellularly unstable laminar flames. Journal of Fluid Mechanics, 917:A53, 2021

  10. S. Sharma, R. Pinto, A. Saha, S. Chaudhuri, and S. Basu. On secondary atomization and blockage of surrogate cough droplets in single- and multilayer face masks.Science Advances, 7(10), 2021

  11. *S. Shin, M. Li, X. Wu, A. Saha, and J. Bae. Role of soft-gel substrates on bouncing-merging transition in drop impact on liquid film. Soft Matter, 17:571–579, 2021

  12. S. Basu, P. Kabi, S. Chaudhuri, and A. Saha. Insights on drying and precipitation dynamics of respiratory droplets from the perspective of COVID-19, Physics of Fluids, 32(12):123317, 2020 (Featured article; Highlighted in a Scilight article, AIP’s online magazine)

  13. S. Chaudhuri, S. Basu, and A. Saha. Analyzing the dominant SARS-COV-2 transmission routes toward an ab-initio disease spread model. Physics of Fluids, 32(12):123306, 2020 (Featured article)

  14. *V. Unni, C. K. Law, and A. Saha. A cellular automata model for expanding turbulent flames. Chaos, 30:113141, 2020

  15. I. Pavithran, V. R. Unni, A. J. Varghese, D. Premraj, R. Sujith, C. Vijayan, A. Saha, N. Marwan, and J. Kurths. Universality in spectral condensation. Scientific Reports, 10:17405, 2020

  16. *Z. Liu, V. R. Unni, S. Chaudhuri, C. K. Law, and A. Saha. Local statistics of laminar expanding flames subjected to Darrieus–Landau instability. Proceedings of the Combustion Institute, 2020 (in press)

  17. *S. Chaudhuri, S. Basu, P. Kabi, V. R. Unni, and A. Saha. Modeling the role of respiratory droplets in covid-19 type pandemics. Physics of Fluids, 32(6):063309, 2020 (Featured article)

  18. *Y. Weng, V. R. Unni, R. Sujith, and A. Saha. Synchronization framework for modeling transition to thermoacoustic instability in laminar combustors. Nonlinear Dynamics, 100:3295–3306, 2020

  19. I. Pavithran, V. R. Unni, A. J. Varghese, R. Sujith, A. Saha, N. Marwan, and J. Kurths. Universality in the emergence of oscillatory instabilities in turbulent flows. EPL (Europhysics Letters), 129(2):24004, 2020

  20. *Y. Wei, Y. Yang, J. Zhang, S. Deng, S. Liu, C. K. Law, and A. Saha. Atomization of acoustically levitated droplet exposed to hot gases. Applied Physics Letters, 116(4):044101, 2020

  21. *X. Tang, A. Saha, C. Sun, and C. K. Law. Spreading and oscillation dynamics of drop impacting liquid film. Journal of Fluid Mechanics, 881:859–871, 2019

  22. *A. Saha, Y. Wei, X. Tang, and C. K. Law. Kinematics of vortex ring generated by a drop upon impacting a liquid pool. Journal of Fluid Mechanics, 875:842–853, 2019 (Equal contributions by AS and YW)

  23. J. Huo, A. Saha, T. Shu, Z. Ren, and C. K. Law. Self-acceleration and global pulsation in expanding laminar H2-O2-N2 flames. Physical Review Fluids, 4(4):043201, 2019

  24. *X. Tang, A. Saha, C. K. Law, and C. Sun. Bouncing drop on liquid film: Dynamics of interfacial gas layer. Physics of Fluids, 31(1):013304, 2019 (Featured article; Highlighted in Scilight, AIP’s online magazine)

  25. D. Fries, B. A. Ochs, A. Saha, D. Ranjan, and S. Menon. Flame speed characteristics of turbulent expanding flames in a rectangular channel. Combustion and Flame, 199:1–13, 2019

  26. *Z. Liu, S. Yang, C. K. Law, and A. Saha. Cellular instability in Le<1 turbulent expanding flames. Proceedings of the Combustion Institute, 37(2):2611–2618, 2019

  27. A. Saha, S. Yang, and C. K. Law. On the competing roles of turbulence and differential diffusion in facilitated ignition. Proceedings of the Combustion Institute, 37(2):2383 – 2390, 2019

  28. *S. Yang, A. Saha, Z. Liu, and C. K. Law. Role of Darrieus-Landau instability in propagation of expanding turbulentflames. Journal of Fluid Mechanics, 850:784–802, 2018

  29. J. Huo, A. Saha, Z. Ren, and C. K. Law. Self-acceleration and global pulsation in hydrodynamically unstable expanding laminar flames. Combustion and Flame, 194:419–425, 2018

  30. *X. Tang, A. Saha, C. K. Law, and C. Sun. Bouncing-to-merging transition in drop impact on liquid film: Role of liquid viscosity. Langmuir, 34(8):2654–2662, 2018

  31. *S. Yang, A. Saha, W. Liang, F. Wu, and C. K. Law. Extreme role of preferential diffusion in turbulent flame propagation. Combustion and Flame, 188:498–504, 2018

  32. *X. Tang, A. Saha, C. K. Law, and C. Sun. Nonmonotonic response of drop impacting on liquid film: mechanism and scaling. Soft Matter, 12(20):4521–4529, 2016 (Featured in cover of the issue)

  33. *S. Yang, A. Saha, F. Wu, and C. K. Law. Morphology and self-acceleration of expanding laminar flames with flamefront cellular instabilities. Combustion and Flame, 171:112–118, 2016

  34. M. Li, A. Saha, D. Zhu, C. Sun, and C. K. Law. Dynamics of bouncing-versus-merging response in jet collision. Physical Review E, 92(2):023024, 2015

  35. S. Chaudhuri, A. Saha, and C. K. Law. On flame–turbulence interaction in constant-pressure expanding flames. Proceedings of the Combustion Institute, 35(2):1331–1339, 2015

  36. F. Wu, A. Saha, S. Chaudhuri, and C. K. Law. Propagation speeds of expanding turbulent flames of c4 to c8n-alkanes atelevated pressures: Experimental determination, fuel similarity, and stretch-affected local extinction. Proceedings of the Combustion Institute, 35(2):1501–1508, 2015

  37. F. Wu, A. Saha, S. Chaudhuri, and C. K. Law. Facilitated ignition in turbulence through differential diffusion. Physical Review Letters, 113(2):024503, 2014

  38. A. Saha, S. Chaudhuri, and C. K. Law. Flame surface statistics of constant-pressure turbulent expanding premixed flames.Physics of Fluids, 26(4):045109, 2014

  39. S. Basu, A. Saha, and R. Kumar. Criteria for thermally induced atomization and catastrophic breakup of acoustically levitated droplet. International Journal of Heat and Mass Transfer, 59:316–327, 2013

  40. A. Saha, J. D. Lee, S. Basu, and R. Kumar. Breakup and coalescence characteristics of a hollow cone swirling spray. Physics of Fluids, 24(12):124103, 2012

  41. P. Deepu, S. Basu, A. Saha, and R. Kumar. Spreading and atomization of droplets on a vibrating surface in a standing pressure field. Applied Physics Letters, 101(14):143108, 2012

  42. A. Saha, S. Basu, and R. Kumar. Scaling analysis: Equivalence of convective and radiative heating of levitated droplet. Applied Physics Letters, 100(20):204104, 2012

  43. S. Basu, A. Saha, and R. Kumar. Thermally induced secondary atomization of droplet in an acoustic field. Applied Physics Letters, 100(5):054101, 2012

  44. A. Saha, S. Basu, and R. Kumar. Effects of acoustic-streaming-induced flow in evaporating nanofluid droplets. Journalof Fluid Mechanics, 692:207–219, 2012

  45. A. Saha, S. Basu, and R. Kumar. Velocity and rotation measurements in acoustically levitated droplets. Physics Letters A, 376(45):3185–3191, 2012

  46. A. Saha, S. Basu, and R. Kumar. Particle image velocimetry and infrared thermography in a levitated droplet with nanosilica suspensions. Experiments in Fluids, 52(3):795–807, 2012

  47. V. Singh, A. Karakoti, A. Kumar, A. Saha, S. Basu, and S. Seal. Precursor dependent microstructure evolution and non-stoichiometry in nano-structured cerium oxide coatings using the solution precursor plasma spray technique. Journal of the American Ceramic Society, 93(11):3700–3708, 2010

  48. A. Saha, S. Basu, C. Suryanarayana, and R. Kumar. Experimental analysis of thermo-physical processes in acoustically levitated heated droplets.International Journal of Heat and Mass Transfer, 53(25-26):5663–5674, 2010

  49. U. Idahosa, A. Saha, C. Xu, and S. Basu. Non-premixed acoustically perturbed swirling flame dynamics. Combustion and Flame, 157(9):1800–1814, 2010

  50. A. Saha, R. Kumar, and S. Basu. Infrared thermography and numerical study of vaporization characteristics of pure and blended bio-fuel droplets. International Journal of Heat and Mass Transfer, 53(19-20):3862–3873, 2010

  51. R. Kumar, E. Tijerino, A. Saha, and S. Basu. Structural morphology of acoustically levitated and heated nanosilica droplet. Applied Physics Letters, 97(12):123106, 2010

  52. A. Saha, S. Seal, B. Cetegen, E. Jordan, A. Ozturk, and S. Basu. Thermo-physical processes in cerium nitrate precursor droplets injected into high temperature plasma. Surface and Coatings Technology, 203(15):2081 – 2091, 2009

  53. A. Saha, V. Singh, S. Seal, and S. Basu. Vaporization and precipitation characteristics of cerium nitrate precursor droplets heated by monochromatic irradiation. Surface and Coatings Technology, 203(15):2102 – 2115, 2009

Selected conference abstracts and papers:

  1. S. Bagchi, V. R. Unni, and A. Saha. Application of weighted correlation network towards predicting onset of aeroelastic instability. In AIAA SCITECH 2022 Forum, page 0353, 2022

  2. A. Saha, P. Kabi, S. Chaudhuri, and S. Basu. Drying and precipitation of model respiratory droplets in the perspective of covid-19. Bulletin of the American Physical Society, 2020

  3. Y. Weng, A. Potnis, V. Unni, and A. Saha. Measurements of local statistics in a premixed turbulent Bunsen flame. Bulletin of the American Physical Society, 2020

  4. A. Potnis, V. R. Unni, C. K. Law, and A. Saha. Lewis number effects on extinction of premixed flames under oscillating strain rates. Bulletin of the American Physical Society, 2020

  5. S. Bagchi, V. R. Unni, and A. Saha. Prediction of the onset of aeroelastic flutter using complex networks. Bulletin of the American Physical Society, 2020

  6. E. Aguilar Ruiz, V. Rajasekharan Unni, R. Sujith, and A. Saha. Convolutional neural networks to predict the onset of oscillatory instabilities in turbulent systems. Bulletin of the American Physical Society, 2020

  7. J. Huo, A. Saha, T. Shu, Z. Ren, and C. K. Law. Globally oscillating propagation of cellular expanding flames in constant pressure.11th US National Combustion Meeting, 2019

  8. V. R. Unni and A. Saha. A population dynamics model for expanding turbulent flames.11th US National Combustion Meeting, 2019

  9. Z. Liu, A. Saha, S. Chaudhuri, and L. C. K. Local statistics of expanding turbulent flames: Effect of Darrieus-Landau instability.11th US National Combustion Meeting, 2019

  10. A. Saha, Y. Wei, X. Tang, and C. K. Law. After life of a drop impacting a liquid pool. In APS-Division of Fluid Dynamics, pages M12–006,2017

  11. X. Tang, A. Saha, C. K. Law, and C. Sun. Viscous effect of drop impacting on liquid film. In APS-Division of Fluid Dynamics, pagesM12–009, 2017

  12. A. Saha, S. Yang, and C. K. Law. Role of molecular diffusion in turbulent flames: Two examples. In APS-Division of Fluid Dynamics, pagesG17–005, 2016

  13. X. Tang, A. Saha, C. K. Law, and C. Sun. Drop impact on liquid film: dynamics of interfacial gas layer. In APS-Division of Fluid Dynamics, pages H37–003, 2016

  14. X. Tang, A. Saha, D. Zhu, C. Sun, and C. K. Law. Nonmonotonic response of drop impacting liquid film. In APS-Division of Fluid Dynamics, pages G33–009, 2015

  15. S. Yang, A. Saha, F. Wu, and C. Law. Highly enhanced flame propagation by turbulence through differential diffusion. In APS-Division of Fluid Dynamics, pages G39–004, 2015

  16. M. Li, A. Saha, D. L. Zhu, C. Sun, and C. K. Law. Dynamics of bouncing-vs.-merging responses in jet collision. In APS-Division of Fluid Dynamics, pages H5–009, 2015D

  17. F. Wu, A. Saha, S. Chaudhuri, and C. K. Law. An investigation on fuel similarity of turbulent flames for c4-c8n-alkanes. In Fall Technical Meeting of the Eastern States Section of the Combustion Institute 2013, pages27–32. Combustion Institute, 2013

  18. A. Saha, M. Li, and C. K. Law. Bouncing and merging of liquid jets. In APS-Division of Fluid Dynamics, pages H36–001, 2014

  19. X. Tang, A. Saha, and C. K. Law. Droplet impacting on liquid film: Evolution of entrapped air layer. In APS-Division of Fluid Dynamics, pages H14–007, 2014

  20. A. Saha, S. Chaudhuri, and C. K. Law. Log-normality and multifractal analysis of flame surface statistics. In APS-Division of Fluid Dynamics, pages M26–003, 2013

  21. P. Deepu, A. Saha, S. Basu, and R. Kumar. Shape deformation and atomization of functional droplets in contact with a vibrating surface. In12th Triennial International Conference on Liquid Atomization and Spray Systems, 2012

  22. J. Lee, A. Saha, S. Basu, and R. Kumar. Effects of injection pressure on spray atomization characteristics with measurement technique cross-validation. In12th Triennial International Conference on Liquid Atomization and Spray Systems, 2012

  23. A. Saha, S. Basu, and R. Kumar. Thermally induced breakup of levitated droplet. In12th Triennial International Conference on Liquid Atomization and Spray Systems, 2012

  24. A. Saha, S. Basu, and R. Kumar. Levitated droplet evaporation: scaling analysis for equivalence between radiative and convective heating. In 9th Euromech Fluid Mechanics Conference, Rome, Italy, 2012

  25. A. Saha, S. Basu, and R. Kumar. Agglomeration and precipitation kinetics on acoustically levitated droplet containing solute particles. In24th European Conference on Liquid Atomization and Spray Systems, 2012

  26. L. V. Tran, M. I. Valentino, A. Saha, C. D. Slabaugh, M. Ricklick, J. Kapat, and S. Basu. PIV study on the dimple mid-plane of a narrow rectangular channel with dimples applied to one wall. In Turbo Expo: Power for Land, Sea, and Air, volume 54655, pages 1517–1527, 2011

  27. A. Saha, E. Tijerino, R. Kumar, and S. Basu. Radiative heating of acoustically levitated nano-silica droplets: Internal flow pattern leading to ring or bowl shaped structure. APS-Division of Fluid Dynamics, 63:MJ–008,2010

  28. E. Tijerino, A. Saha, R. Kumar, and S. Basu. Acoustically levitated nanofluid droplet vaporization. In ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels collocated with 3rdJoint US-European Fluids Engineering Summer Meeting, pages 831–840, 2010

  29. A. Saha, E. Tijerino, R. Kumar, and S. Basu. IR thermography and high speed imaging of cerium nitrate precursor droplets heated by monochromatic irradiation. In ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels collocated with 3rd Joint US-European Fluids Engineering Summer Meeting, volume 54501, pages 821–829, 2010.

  30. U. Idahosa, A. Saha, N. Khatami, C. Xu, and S. Basu. Acoustic perturbation effects on the fluid dynamics and swirling flame response in a non-premixed co-flow burner. In Turbo Expo: Power for Land, Sea, and Air, volume 43970, pages 1309–1321, 2010

  31. U. Idahosa, A. Saha, C. Xu, and S. Basu. Characterization of combustion dynamics in swirl stabilized flames. In ASME Power Conference, volume 43505, pages 517–531, 2009