- J. Shen, R. Ni, “Experimental investigation of clogging dynamics in homogeneous porous medium”. Water Resources Research 53 1879–1890 (2017).
- T. T. Truscott, J. Belden, R. Ni, J. Pendlebury, B. McEwen, “Three-dimensional microscopic light field particle image velocimetry”. Experiments in Fluids 58 16 (2017).
- Cole, B. C., Marcus, G. G., Parsa, S., Kramel, S., Ni, R., Voth, G. A., “Methods for Measuring the Orientation and Rotation Rate of 3D-printed Particles in Turbulence”. Journal of Visualized Experiments (2016).
- Gorbonos, D., Ianconescu, R., Puckett, J. G., Ni, R., Ouellette, N. T., Gov, N. S., “Long-range acoustic interactions in insect swarms: an adaptive gravity model”. New Journal of Physics 18 073042(2016).
- Ni, R., Ouellette, N. T., “On the tensile strength of insect swarms”. Physical Biology 13 045002 (2016).
- Venugopal, K., Kelly, P., Jamaluddin, A., McConnell, C., Alger, M., Morgan, E., Ni, R., Dunn, R., Grasselli, G., “The PetroChallenge–An Innovative E&P Learning Experience Using an Interactive Learning Simulation”. SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers. 2016.
- Zhou, Q., Huang, Y.-X., Lu, Z.-M., Liu, L., Ni, R., “Scale-to-scale energy and enstrophy transport in two-dimensional Rayleigh–Taylor turbulence”. Journal of Fluid Mechanics 786 294– 308 (2016).
- Y.-C. Xie, S.-D. Huang, D. Funfschilling, X.-M. Li, R. Ni and K.-Q. Xia, "Effects of polymer additives in the bulk of turbulent thermal convection," Journal of Fluid Mechanics 784 R3 (2015)
- R. Ni and N. T. Ouellette, "Velocity correlations in laboratory insect swarms," Eur. Phys. J. Special Topics 224 3271–3277 (2015).
- R. Ni, M. H. Michalski, E. Brown, N. Doan, J. Zinter, N. T. Ouellette, and G. M. Shepherd, "Optimal directional volatile transport in retronasal olfaction," Proc. Natl. Acad. Sci. USA 112 14700–14704 (2015).
- R. Ni, J. G. Puckett, E. R. Dufresne, and N. T. Ouellette, "Intrinsic fluctuations and driven response of insect swarms," Phys. Rev. Lett. 115, 118104 (2015).
- J. G. Puckett, R. Ni, and N. T. Ouellette, "Time-frequency analysis reveals pairwise interactions in insect swarms," Phys. Rev. Lett. 114, 258103 (2015).
- R. Ni, S. Kramel, N. T. Ouellette, and G. A. Voth, "Measurements of the coupling between the tumbling of rods and the velocity gradient tensor in turbulence," J. Fluid Mech. 766, 202-225 (2015).
- R. Ni, S.-D. Huang, and K.-Q. Xia, "Reversals of the large-scale circulation in quasi-2D Rayleigh–Bénard convection," J. Fluid Mech. 778, R5 (2015).
- R. Ni, G. A. Voth, and N. T. Ouellette, "Extracting turbulent spectral transfer from under-resolved velocity fields," Phys. Fluids 26, 105107 (2014).
- R. Ni, N. T. Ouellette, and G. A. Voth, "Alignment of vorticity and rods with Lagrangian fluid stretching in turbulence," J. Fluid Mech. 743, R3 (2014).
- G. G. Marcus, S. Parsa, S. Kramel, R. Ni, G. A. Voth "Measurements of the solid-body rotation of anisotropic particles in 3D turbulence," New J. Phys. 16, 102001 (2014).
- P. Wei, T.-S. Chan, R. Ni, X.-Z. Zhao and K.-Q. Xia "Heat transport properties of plates with smooth and rough surfaces in turbulent thermal convection," J. Fluid Mech. 740, 28-46 (2014).
- S.-D. Huang, M. Kaczorowski, R. Ni, and K.-Q. Xia "Confinement-induced heat-transport enhancement in turbulent thermal convection," Phys. Rev. Lett. 16, 102001 (2014).
This paper was selected as a recommendation in Theoretical and Applied Mechanics Letters (22/09/2013).
- R. Ni, and K.-Q. Xia, "Experimental investigation of pair dispersion with small initial separation in convective turbulent flows," Phys. Rev. E 87, 6 (2013).
- R. Ni and K.-Q. Xia, "On the Kolmogorov Constants for the Second-Order Structure Function and the Energy Spectrum," Phys. Rev. E 87, 2 (2013).
- P. Wei, R. Ni and K.-Q. Xia, "Enhanced and Reduced Heat Transport in Turbulent Thermal Convection with Polymer Additives," Phys. Rev. E 86, 1 (2012).
- R. Ni, S.-D. Huang and K.-Q. Xia, "Lagrangian acceleration measurements in convective thermal turbulence," J. Fluid Mech. 692, 395 (2012).
- R. Ni, S.-D. Huang and K.-Q. Xia, "Local energy dissipation rate balances local heat flux in the center of turbulent thermal convection," Phys. Rev. Lett. 107, 174503 (2011).
- R. Ni, S.-Q. Zhou, K.-Q. Xia, "An experimental investigation of turbulent thermal convection in water-based alumina nanofluid," Phy. Fluids 23, 022005 (2011).
- D. C. Venerus, J. Buongiorno, R. Christianson, et al. R. Ni, "Viscosity measurements on colloidal dispersions (nanofluids) for heat transfer applications," Appl. Rheol. 20, 4, 44582 (2010)
- K. Sugiyama, R. Ni, R. J. A. M. Stevens, T. S. Chan, S.-Q. Zhou, H.-D. Xi, C. Sun, S. Grossmann, K.-Q. Xia and D. Lohse, "Flow reversals in thermally driven turbulence," Phys. Rev. Lett. 105, 034503 (2010).
- S.-Q. Zhou, R. Ni and D. Funfschilling, "Effects of shear rate and temperature on viscosity of alumina polyalphaolefins nanofluids," J. Appl. Phys. 107, 054317 (2010).
- J. Buongiorno, D. C. Venerus et al. (R. Ni), "A benchmark study on the thermal conductivity of nanofluids," J. Appl. Phys. 106, 094312 (2009).
- S.-Q. Zhou and R. Ni, "Measurement of the specific heat capacity of water-based Al2O3 nanofluid," Appl. Phys. Lett. 92, 093123 (2008).
This paper was selected for the March 24, 2008 issue of Virtual Journal of Nanoscale Science & Technology.