Publications

Arun, R. (2025). Beyond symmetry: normality-based analysis of velocity gradients in turbulent flows. Ph.D. Thesis. California Institute of Technology. [thesis] [link] [pdf]

Arun, R., Kamal, M., Colonius, T., & Johnson, P.L. (2025). Normality-based analysis of multiscale velocity gradients and energy transfer in direct and large-eddy simulations of isotropic turbulence. arXiv:2504.19356. [link] [pdf]

Arun, R. & Colonius, T. (2024). Velocity gradient partitioning in turbulent flows. Journal of Fluid Mechanics 1000, R5. [editor's pick] [link] [pdf]

Arun, R. & Colonius, T. (2024). Velocity gradient analysis of a head-on vortex ring collision. Journal of Fluid Mechanics 982, A16. [link] [pdf]

Arun, R., Bae, H.J., & McKeon, B.J. (2023). Towards real-time reconstruction of velocity fluctuations in turbulent channel flow. Physical Review Fluids 8(6), 064612. [link] [pdf]

Arun, R., Dawson, S.T.M., Schmid, P.J., Laskari, A., & McKeon, B.J. (2020). Control of instability by injection rate oscillations in a radial Hele-Shaw cell. Physical Review Fluids, 5(12), 123902. [link] [pdf]

Arun, R. & Ghosal, S. (2017). A mechanical model of bacteriophage DNA ejection. Physics Letters A, 381(30), 2386—2390. [link] [pdf]

Arun, R. (2025). Beyond symmetry: normality-based analysis of velocity gradients in turbulent flows. Ph.D. Thesis Defense. California Institute of Technology. [defense] [slides] [video]

Arun, R., Kamal, M., Colonius, T. & Johnson, P.L. (2025). Normality-based analysis of multiscale velocity gradients and energy transfer. 18th Southern California Flow Physics Symposium. University of Southern California. [link] [abstract] [slides]

Kamal, M., Arun, R., Colonius, T. & Johnson, P.L. (2025). Analysis of smallest resolved scales in large-eddy simulations. 18th Southern California Flow Physics Symposium. University of Southern California. [link] [abstract]

Arun, R. (2025). Beyond symmetry: normality-based analysis of turbulent velocity gradients. Mechanical Engineering Seminar. University of California, Berkeley. [invited] [abstract] [slides]

Arun, R. (2025). Beyond symmetry: normality-based analysis of turbulent velocity gradients. Fluid Dynamics Seminar. University of California, Irvine. [invited] [abstract] [slides]

Zhou, D., Arun, R., Colonius, T., & Bae, H.J. (2025). Grid resolution assessment in wall-modeled large-eddy simulation via velocity gradient partitioning. AIAA SciTech 2025 Forum. Orlando, Florida. [link] [slides]

Arun, R. & Colonius, T. (2024). Velocity gradient partitioning in turbulent flows. 77th Annual Meeting of the APS Division of Fluid Dynamics. Salt Lake City, Utah. [link] [slides]

Arun, R. & Colonius, T. (2024). Velocity gradient partitioning in turbulent flows. Workshop on Coherent Structures for Turbulence Modeling. Santa Fe, New Mexico. [link] [abstract] [poster]

Arun, R. & Colonius, T. (2024). Velocity gradient partitioning in turbulent flows. 5th Annual NDSEG Conference. New Orleans, Louisiana. [poster] [slides]

Arun, R. & Colonius, T. (2024). Velocity gradient partitioning in turbulent shear flows. 17th Southern California Flow Physics Symposium. University of California, Irvine. [link] [abstract] [slides]

Wadas, M., Arun, R., & Colonius, T. (2023). Dynamics of circular vortex dipoles. 17th Southern California Flow Physics Symposium. University of California, Irvine. [link] [abstract]

Arun, R. & Colonius, T. (2023). Efficient simulation and characterization of a head-on vortex ring collision. 16th Southern California Flow Physics Symposium. San Diego State University. [link] [abstract] [slides]

Arun, R., Bae, H.J., & McKeon, B.J. (2023). Towards real-time reconstruction of velocity fluctuations in turbulent channel flow. Thermal & Fluid Sciences Affiliates Conference. Stanford University. [link] [slides]

Arun, R., Bae, H.J., & McKeon, B.J. (2022). Towards real-time reconstruction of velocity fluctuations in turbulent channel flow. 75th Annual Meeting of the APS Division of Fluid Dynamics. Indianapolis, Indiana. [link] [slides]

Arun, R., Dawson, S.T.M., Schmid, P.J., Laskari, A., & McKeon, B.J. (2020). Control of instability by injection rate oscillations in a radial Hele-Shaw cell. 73rd Annual Meeting of the APS Division of Fluid Dynamics. Chicago, IL. [link] [video]

Arun, R., Dawson, S.T.M., & McKeon, B.J. (2019). Control of the Saffman-Taylor instability with an oscillatory injection rate. 13th Southern California Flow Physics Symposium. University of California, Santa Barbara. [link] [slides]