Journal Papers

1. J. Lu, M. Muradoglu and G. Tryggvason. Effect of Insoluble Surfactant on Turbulent Bubbly Flows in Vertical Channels. International Journal of Multiphase Flow, 95, 135-143 (2017)

2. H. Xia, J. Lu, S. Dabiri, and G. Tryggvason. Fully Resolved Numerical Simulations of Fused Deposition Modeling. Part I - Fluid Flow. Rapid Prototyping Journal. To Appear

3. B. Magolan, E. Baglietto, C. Brown, I.A. Bolotnov, G. Tryggvason, and J. Lu. Multiphase Turbulence Mechanisms Identification from Consistent Analysis of Direct Numerical Simulation Data. Nuclear Engineering and Technology. Submitted for Publication.

4. G. Tryggvason, M. Ma and J. Lu. DNS Assisted Modeling of Bubbly Flows in Vertical Channels. Nuclear Science and Engineering, 184(3), 312-320 (2016)

5. M. Ma, J. Lu and G. Tryggvason. Using Statistical Learning to Close Two-Fluid Multiphase Flow Equations for Bubbly Flows in Vertical Channels. International Journal of Multiphase Flow, 85, 336-347 (2016)

6. M. Ma, J. Lu and G. Tryggvason. Using Statistical Learning to Close Two-Fluid Multiphase Flow Equations for a Simple Bubbly System. Physics of Fluid, 27, 092101 (2015).

7. S. Piedra, J. Lu, E. Ramos and G. Tryggvason. Numerical Study of the Flow and Heat Transfer of Bubbly Flows in Inclined Channels. International Journal of Heat and Fluid Flow, 56, 43-50 (2015)

8. G. Tryggvason and J. Lu. Direct Numerical Simulations of Flows with Phase Change. Procedia IUTAM, 15, 2-13 (2015)

9. G. Tryggvason and J. Lu. Direct Numerical Simulations of Bubbly Flows. Mechanical Engineering Reviews, 2(2), 1-14 (2015)

10. S. Dabiri, J. Lu and G. Tryggvason. Transition between Regimes of a Vertical Channel Bubbly Upflow due to Bubble Deformability. Physics of Fluids, 25, 102110 (2013).

11. J. Lu and G. Tryggvason. Dynamics of Nearly Spherical Bubbles in a Turbulent Channel Upflow. Journal of Fluid Mechanics. Vol.732, 166-189 (2013)

12. G. Tryggvason, S. Dabiri, B. Aboulhasanzadeh, and J. Lu. Multiscale Considerations in Direct Numerical Simulations of Multiphase Flows. Physics of Fluids, 25, 031302 (2013)

13. G. Tryggvason, S. Thomas, J. Lu and B. Aboulhasanzadeh. Multiscale Issues in DNS of Multiphase Flows. Acta Mathematica Scientia, 30B(2), 551-562 (2010).

14. J. Lu and G. Tryggvason. Effect of Bubble Deformability in Turbulent Bubbly Upflow in a Vertical Channel. Physics of Fluids. 20 040701. Also selected for the May 12, 2008 issue of Virtual Journal of Nanoscale Science & Technology (2008).

15. J. Lu and G. Tryggvason. Effect of Bubble Size in Turbulent Bubbly Downflow in a Vertical Channel. Chemical Engineering Science, 62, 2008-3018 (2007).

16. J. Lu, S. Biswas and G. Tryggvason. A DNS Study of Laminar Bubbly flow in a Vertical Channel. International Journal of Multiphase Flow, 32, 643-660 (2006).

17. J. Lu and G. Tryggvason. Numerical Study of Turbulent Bubbly Flows in a Downward Channel. Physics of Fluids, 18, 103302 (2006).

18. G. Tryggvason, A. Esmaeeli, J. Lu and S. Biswas. Recent Progress in Computational Studies of Disperse Bubbly Flows. Multiphase Science and Technology, 17, 1-19 (2006).

19. G. Tryggvason, A. Esmaeeli, J. Lu and S. Biswas. Direct Numerical Simulations of Gas/Liquid Multiphase Flows. Fluid Dynamics Research, 38(9), 660-681 (2006).

20. J. Lu, A. Fernandez and G. Tryggvason. The Effect of Bubbles on the Wall Shear in a Turbulent Channel Flow. Physics of Fluids, 17, 095102 (2005).

21. K. Sankaranarayanan, I.G. Kevrekidis, S. Sundaresan, J. Lu and G. Tryggvason. A Comparative Study of Lattice Boltzmann and Front-Tracking Finite-Difference Methods for Bubbles Simulations. International Journal of Multiphase Flow, 29, 109-116 (2003).

22. G. Tryggvason, A. Esmaeeli, A. Fernandez and J. Lu. Direct Numerical Simulations of Multiphase Flows. Transactions of Nanjing University of Aeronautics and Astronautics. 18(z1), 21-25 (2001).

23. X. Zhang, R. Li, H. Yu and J. Lu. Additives and their effects on direct contact phase change heat transfer. Journal of Chemical Industry and Engineering (China), 53(8), 837-841 (2002) (in Chinese).

24. J. Lu, R. Li and H. Yu. Exergy analysis of refrigeration cycle of a direct-contact ice storage system. Journal of university of shanghai for science and technology, 23(4), 300-304 (2001) (in Chinese).

25. J. Lu, R. Li and H. Yu. Operation characteristics of the direct contact ice thermal storage system. Energy Research and Information, 17(No.4), 1-4 (2001) (in Chinese).

26. J. Lu, Y. Li, Z. Lin and R. Li. Numerical study on the gas-liquid two-phase cross flow around the square-section cylinder. Journal of Engineering Thermophysics, 22(6), 751-754 (2001) (in Chinese).

27. X. Zhang, J. Lu, R. Li and H. Yu. The research advancement of direct contact heat transfer technology, Part 2. Energy Technology, 22(2), 53-58 (2001) (in Chinese).

28. X. Zhang, J. Lu, R. Li and H. Yu. The research advancement of direct contact heat transfer technology, Part 1. Energy Technology, 22(1), 2-6 (2001) (in Chinese).

29. X. Zhang, R. Li, J. Lu, and H. Yu. Study on Economical Performance of cool storage air conditioner, Journal of Refrigeration, (1), 17-22 (2001) (in Chinese).

30. X. Zhang, J. Lu, R. Li and H. Yu. Development of water-separating device for direct contact ice thermal storage system. Refrigeration, 19(3), 1-4 (2000) (in Chinese).

31. X. Zhang, J. Lu, R. Li and H. Yu. The preliminary study in direct contact cool releasing. Energy Technology, 21(2), 80-82 (2000) (in Chinese).

32. X. Zhang, R. Li, J. Lu and H. Yu. Direct contact thermal storage technology and its research advancement. Journal of Shanghai Maritime University, 21(2), 32-38 (2000) (in Chinese).

33. J. Lu, Z. Xie, Y. Wang, Z. Lin and M. Wang. Study on the fluctuating lift acting on a circular cylinder under two-phase cross-flow. Chinese Journal of Applied Mechanics, 17(1), 76-80 (2000) (in Chinese).

34. Z. Xie, J. Lu, X. Su and Z. Lin. Study on the vortex street characteristics of tube bundles in line arrangement subjected to gas-liquid two-phase cross flow. Chemical Engineering (China), 28(6), 25-27 (2000) (in Chinese).

35. X. Zhang, R. Li, J. Lu and H. Yu. Test research on direct-contact cold-accumulation. Mechanical and Electrical Equipment, 17(6), 26-29 (2000) (in Chinese).

36. Z. Xie, X. Su, J. Lu and Z. Lin. Power spectrum characteristics of fluctuating lift for the tandem circular cylinders subjected to two-phase crossflow. Journal of Xi’an Jiaotong University, 33(8), 28-31 (1999) (in Chinese).

37. J. Lu, Z. Xie and Z. Lin. Fluctuating lifts on a square-section and an equilateral triangle-section cylinder under two-phase cross flow. Journal of Engineering Thermophysics, 20(3), 360-364 (1999) (in Chinese).

38. J. Lu, Z. Xie, Y. Wang, Z. Lin and M. Wang. Pressure distributions around circular cylinder for gas-liquid two-phase cross flow. Journal of Xi’an Jiaotong University, 33(1), 55-58 (1999) (in Chinese).

39. Z. Xie, X. Su, J. Lu and Z. Lin. Power spectrum characteristics of fluctuating lift for the tandem circular cylinders subjected to two-phase cross flow. Journal of Xi’an Jiaotong University, 33(8), 28-31 (1999) (in Chinese).

40. Z. Xie, J. Lu and Z., Lin. A microcomputer-based experiment data acquisition system for oil/gas two-phase flow. Oil-gas Filed Surface Engineering, 17(6), 18-19 (1998) (in Chinese)

41. Z. Liang, J. Lu, Y. Wang and Z. Lin. A study on the instantaneous state process of pipeline oil-gas two-phase flow. Journal of Xi’an Petroleum Institute, 13(1), 22-25 (1998) (in Chinese).

42. Z. Liang, S. Wang, J. Lu and Z. Lin. Analysis and performance comparison on several simulation software models for oil-gas multiphase flow pipelines. Oil-gas Filed Surface Engineering, 17(1), 2-6 (1998) (in Chinese).

43. Y. Li, J. Lu, S. Wang, and Z. Lin. Influence of body shapes on the gas-liquid two phase vortex street. Chinese Journal of Applied Mechanics, 13(2), 1-7 (1996) (in Chinese).

Conference Papers

1. B. Magolan, E. Baglietto, C. Brown, I.A. Bolotnov, G. Tryggvason, and J. Lu. Multiphase Turbulence Mechanisms Identification from Consistent Analysis of Direct Numerical Simulation Data. M&C 2017 - International Conference on Mathematics & Computational Methods Applied to Nuclear Science & Engineering, Jeju, Korea, Apr.16-20, 2017.

2. G. Tryggvason, J. Lu and M. Ma. DNS Assisted Modeling of Bubbly Flows. ICMF-2016 - 9th International Conference on Multiphase Flow. Firenze, Italy, May 22-27, 2016.

3. G. Tryggvason, M. Ma and J. Lu. DNS Assisted Modeling of Bubbly Flows in Vertical Channels. NURETH-16: 16th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, Chicago, IL, Aug. 30-Sept. 4, 2015.

4. G. Tryggvason and J. Lu. The Transient Evolution of Bubbles in Turbulent Channel Flows. ASME Fluids Engineering Summer Meeting. Paper No. FEDSM2014-21602, Chicago, IL, Aug. 3-7, 2014.

5. G. Tryggvason, B. Aboulhasanzadeh, S. Dabiri, and J. Lu. Multiscale Issues in DNS of Multiphase Flows. The 15th International Topical Meeting on Nuclear Reactor Thermal - Hydraulics, NURETH-15 Pisa, Italy, May 12-17, 2013.

6. G. Tryggvason, S. Dabiri, B.Aboulhasanzadeh and J. Lu. Multiscale Issue in DNS of Multiphase Flows. 2012 Japan-U.S. Seminar on Two-Phase Flow Dynamics. Tokyo, Japan, June 7-12, 2012.

7. G. Tryggvason, S. Dabiri and J. Lu. DNS Studies of Turbulent Bubbly Flows in Vertical Channels. FEDSM2012-72111, ASME Fluids Engineering Summer Meeting FEDSM2012, Puerto Rico, July 8-12, 2012.

8. G. Tryggvason and J. Lu. DNS for Multiphase Flow Model Generation and Validation. NURETH-14: The 14th International Topical Meeting on Nuclear Reactor Thermalhydraulics. Toronto, Sept. 25-30, 2011.

9. B. Aboulhasanzadeh, S. Thomas, J. Lu and G. Tryggvason. Multiscale Issues in DNS of Multiphase Flows. ASME-JSME-KSME Joint Fluids Engineering Conference 2011. Hamamatsu, Shizuoka, Japan, July 24-29, 2011.

10. G. Tryggvason, S. Thomas, J. Lu, B. Aboulhasanzadeh and V. Tsengue. Multiscale Computations of Multiphase Flow. 7th International Conference on Multiphase Flow, ICMF 2010, Tampa, FL, May 31-June 4, 2010.

11. J. Lu and G. Tryggvason. Progress in DNS of Nucleate Boiling (Poster). 7th International Conference on Multiphase Flow, ICMF 2010, Tampa, FL, May 31-June 4, 2010

12. G. Tryggvason, J. Lu, and S. Thomas. Direct Numerical Simulations of Nucleate Boiling, IMECE2008-67444. ASME International Mechanical Engineering Congress and Exposition. Boston, MA, Oct. 31-Nov. 6, 2008.

13. G. Tryggvason and J. Lu. DNS of Bubbly Flows - Recent Progress. US-Japan Seminar on Two-phase Flow Dynamics. Loews Santa Monica Beach Hotel, CA, Sept.14-18, 2008.

14. G. Tryggvason and J. Lu. Direct Numerical Simulations of Multiphase Flows. Keynote Lecture. 10th UK National Heat Transfer Conference, Edinburgh, Sept. 10-11, 2007

15. J. Lu, S. Biswas and G. Tryggvason. Direct Numerical Simulations of Bubbly Flows in a Vertical Channel. 6th International Conference on Multiphase Flow, ICMF 2007, Leipzig, Germany, July 9-13, 2007

16. S. Mortasavi, J. Lu and G. Tryggvason. Topology Changes in Front Tracking Simulations of Multiphase Flows. 6th International Conference on Multiphase Flow, ICMF 2007, Leipzig, Germany, July 9-13, 2007

17. G. Tryggvason, J. Lu and S.Biswas. Direct Numerical Simulations of Bubbles in Vertical Channels. Proceedings of ASME FEDSM2006, 2nd Joint US-European Fluids Engineering Summer Meeting. Miami, FL, July 17-20, 2006.

18. G. Tryggvason, J. Lu, S. Biswas and A. Esmaeeli. Studies of bubbly channel flows by direct numerical simulations. Keynote Lecture at the Conference on turbulence and interactions TI2006, Porquerolles, France, May 29-June 2, 2006.

19. J. Lu and G. Tryggvason. DNS of Drag Reduction due to Bubble Injection into Turbulent Flow. 2nd International Symposium on Seawater Drag Reduction. Busan, Korea, May 23-26 2005.

20. G. Tryggvason, A. Esmaeeli, J. Lu, S. Biswas, and S. Homma. Keynote Lecture “Recent Progress in Computational Studies of Disperse Bubbly Flows.” Japan-US Seminar on Two-Phase Flow Dynamics. Nagahama, Japan, Dec. 6-11, 2004.

21. G. Tryggvason, J. Lu, S. Biswas, and A. Esmaeeli. Direct Numerical Simulation of Bubbly Flows. Proceedings of the IUTAM Symposium on Computational Approaches to Disperse Multiphase Flow. Chicago, IL, Oct. 4-7, 2004.

2. G. Tryggvason, J. Lu, A. Fernandez and A. Esmaeeli. The effects of bubbles on near-wall vortical flows. Proceedings of the 5th symposium on smart control of turbulence. Tokyo, Japan, Feb. 29 - Mar. 2, 2004.

23. A. Fernandez, J. Lu and G. Tryggvason. Bubble effects on wall shear in vortical flows. Proceeding of ASME FEDSM’03, 4th ASME/JSME Joint Fluids Engineering Conference. Honolulu, Hawaii, USA. July 6-11, 2003.

24. G. Tryggvason, A. Fernández, and J. Lu. The effect of electrostatic forces on droplet suspensions. Second M.I.T. Conference on Computational Fluid and Solid Mechanics. Boston, June 17-20, 2003.

25. J. Lu, A. Fernandez and G. Tryggvason. The effect of bubbles on vortical flows. Proceeding of ASME FEDSM’02, Joint US-ASME-European Fluids Engineering Division Summer Meeting. Montreal, Canada. July 14-18, 2002.

26. A. Fernandez, J. Lu, A. Esmaeeli, and G. Tryggvason. The effect of electrostatic forces on the distribution of drops in a channel flow. Proceeding of ASME FEDSM’02, Joint US-ASME-European Fluids Engineering Division Summer Meeting. Montreal, Canada. July 14-18, 2002.

27. G. Tryggvason. A. Fernandez, J. Lu, and A. Esmaeeli. Electrohydrodynamics of Droplet Suspensions by Front Tracking Simulations. SIAM Annual Meeting, Philadelphia, PA, July 8-12, 2002.

28. J. Lu, Y. Li and Z. Lin. Numerical study on the gas-liquid two-phase cross flow around the square-section cylinder. Multiphase Flow Annual Meeting of the Chinese Society of Engineering Thermophysics, Nanjing, China, Nov. 22-24, 2000 (in Chinese)

29. J. Lu, Z. Xie and Z. Lin. Fluctuating lifts on a square-section and an equilateral triangle-section cylinder under two-phase cross flow. Annual meeting of multiphase flow of the Chinese Society of Engineering Thermophysics, Shanghai, China, October, 1998 (in Chinese)

30. J. Lu, Z. Xie, Y. Wang, and Z. Lin. Study on pressure distributions around a circular cylinder under gas-liquid two-phase cross flow. Graduates’ simulated international scientific conference of Xi’an Jiaotong University. Xi’an, China, May, 1997

31. Z. Lin, J. Lu and Y. Li. The Formation and structure of a two-phase vortex street behind a triangular cylinder. Proceedings of the International Symposium of Multiphase Flow (ISMF’97), Edited by:Xuejun Chen, Manchu Ge. 1997, Beijing, pp.138-142