Harish Ganesh


Assistant Research Scientist, 111A NAME, University of Michigan, Ann Arbor

Bio






Dr. Ganesh's research interests lie primarily in the field of fluid dynamics with focus on hydrodynamic cavitation and experimental methods. He received his Ph.D. in Mechanical Engineering from University of Michigan at Ann Arbor in 2014, Masters in Aerospace sciences from Univeristy of Michigan at Ann Arbor in 2009, and under-graduate degree in Aerospace Engineering from Madras Institute of Technology, India in 2005. Google Scholar Profile
ResearchGate Profile

Current Projects


Wake Cavitation

Study of Wake Cavitation Dynamics using Time-Resolved X-ray densitometry

Hydrofoil Cavitation

Understanding multi-modal nature of hydrofoil cavitation using various measurments

Vortex Cavitation

Cavitation inception during vortex interaction

Data Driven Understanding of Physical Processes

Analysis of dense experimental data using data driven methods for enhanced physical understanding

High Speed X-ray Tomography

Understanding multi-modal nature of hydrofoil cavitation using various measurments

Free-streamline Methods

Cavitation during vortex interaction while strectching

Publications


Peer-reviewed Journals

  • Wu, J., Ganesh., H., and Ceccio, S. L., "Multi-modal partial cavity shedding on a NACA0015 hydrofoil and its relation to the presence of bubbly shocks",Experiments in Fluids, 60-66, 2019

  • Ganesh., H., Makiharju., S., and Ceccio, S. L., "Bubbly shock propagation as a mechanism of shedding in separated cavitating flows", Journal of Hydrodynamics Ser. B, 29-6, pp. 907-916, 2017

  • Makiharju., S., Ganesh., H., and Ceccio, S. L., "The dynamics of partial cavitation formation, shedding, and the influence of dissolved and injected non-condensable gas", Journal of Fluid Mechanics, 829, pp. 420-458, 2017

  • Ganesh, H., Makiharju., S., and Ceccio, S. L., "Bubbly shock propagation as a mechanism for sheet-to-cloud transition of partial cavities", Journal of Fluid Mechanics, 802, pp. 37-78, 2016

  • Lee, I. H., Mäkiharju, S. A., Ganesh, H., and Ceccio, S. L., "Scaling of Gas Diffusion Into Limited Partial Cavities", Journal of Fluids Engineering,138(5), 05130, 2016

  • Ganesh, H., Schot, J., and Ceccio, S. L., "Stationary cavitation bubbles forming in a delta wing vortex", Physics of Fluids, Vol. 26, 127102, 2014

  • Chang, N., Ganesh, H., Yakushiji, R., and Ceccio, S. L., "Tip vortex cavitation suppression by active mass injection", Journal of Fluids Engineering, vol.133, pp.111301-1-11, 2011


Conference Proceedings

  • Bhatt, A., Wu, J., Ganesh, H., and Ceccio, S. L., “Spatially Resolved X-ray Void-fraction Measurments of a Cavitating NACA0015 Hydrofoil”, 32nd Symposium of Naval Hydrodynamics, Hamburg, Germany, Aug. 05 - 10, 2018

  • Ganesh, H, Deijlen, L., Bhatt, A., Wu, J., and Ceccio, S. L., “Cavitation Dynamics in Wakes Behind Bluff Bodies”, 32nd Symposium of Naval Hydrodynamics, Hamburg, Germany, Aug. 05 - 10, 2018

  • Wu, J., Bhatt, A., Ganesh, H., and Ceccio, S. L., “Synchronized X-ray Densitometry and Surface Pressure Measurements on a Cavitating NACA0015 Hydrofoil to Estimate Bubbly Shock Properties”, CAV 2018, 10th International Symposium on Cavitation, Baltimore, Maryland, May. 14 - 16, 2018

  • Deijlen, L., Bhatt, A., Wu, J., Ganesh, H., and Ceccio, S. L., “Cavitation Dynamics in Wakes Behind Bluff Bodies”, CAV 2018, 10th International Symposium on Cavitation, Baltimore, Maryland, May. 14 - 16, 2018

  • Ganesh, H., Juliana., W., and Ceccio, S. L., “Investigation of Cavity Shedding Dynamics on a NACA0015 Hydrofoil Using Time Resolved X-ray Densitometry”, 31st Symposium on Naval Hydrodynamics, Monterey, California, Sep. 11 - 16, 2016

  • Ganesh, H., Makiharju., S., and Ceccio, S. L., “Interaction of a Compressible Bubbly Flow With an Obstacle Placed Within a Shedding Partial Cavity”, 9th International Symposium on Cavitation, Lausanne, Switzerland, Nov. 2015

  • Ganesh, H., Makiharju., S., and Ceccio, S. L., "Partial Cavity Shedding Due to the Propagation of Shock Waves in Bubbly flows", 30th Symposium of Naval Hydrodynamics, Tasmania, Australia, Nov 2014.

  • Makiharju., S., Ganesh. H., and Ceccio, S. L., "Effect of gas injection on bubble population downstream of a cavitating wedge", 8th International conference on multiphase flows, May 2013., Jeju, Korea.

  • Ganesh. H., Paik., B., and Ceccio, S. L., "Cavitation bubbles incepting in delta wing vortices, 9th International conference on Cavitation", Singapore, Aug 2012.

  • Ganesh. H., Makiharju., S., Paik., B., and Ceccio, S. L., "Investigation of Partial Cavitation and Its Transition to Cloud Cavitation Using Time Resolved X-Ray Densitometry", 29th Symposium on Naval Hydrodynamics, Stockholm, Aug. 2012

  • Ganesh. H., Chang., N., and Ceccio, S. L., "Suppression of Tip vortex cavitation by active mass injection , 7th International conference on Multi-phase flows", Tampa, Florida, May 2010

  • Chang, N., Yakushiji., R., Ganesh. H., and Ceccio, S. L., "Mechanism and scalability of Tip vortex cavtitation suppression by mass injection", 8th International conference on Cavitation, Ann Arbor, Michigan, July 2009.

  • Ganesh, H., Pavanakumar. M., Anandhanarayanan, K., "Store separation dynamics using grid free Euler solver", 24th AIAA Applied Aerodynamics conference, San Francisco, California, June 2006.


Book Chapters

  • Ganesh, H., Juliana., W., and Ceccio, S. L., “Flow-Induced Noise of Shedding Partial Cavitation on a Hydrofoil”, Flow Induced Noise and Vibration Issues and Aspects, State College, Pennsylvania, Apr. 27 - 28, 2017, Springer

Wake Cavitation




Cavitation in the wakes of bluff bodies is known to affect the wake shedding frequency and the properties of the resulting far wake. In particular, as the cavitation forms in the wake, with decreasing cavitation number the wake shedding Strouhal number will increase, reaching a peak value before decreasing as the wake forms a super cavity. further. The physical mechanism responsible for this observed change in shedding dynamics is yet to be fully understood. In the current study, we employed time resolved X-ray densitometry, high-speed videography, to study the cavitation dynamics in the wake of a triangular, nominally two-dimensional wedge in a re-circulating water tunnel to understand the underlying mechanisms responsible for cavity formation and shedding. Void fraction flow fields revealed the presence of bubbly shocks in the cavitating vortical region around the conditions of peak Strouhal number. Using average static pressure and dynamic pressure measurements at the base of the wedge at different cavitation numbers, a physical mechanism responsible for the observed change in dynamics is proposed.

PI: Prof. Steve Ceccio
Students: Anubhav Bhatt, Lisa Deijlen, Juliana Wu

Hydrofoil Cavitation


In this study we aim to understand the role of shock waves in contributing to the multi-modal and abrupt change in cavitation dynamics on a NACA0015 hydrofoil. We use X-ray densitimetry synchronous with surface static and dynamic pressure measurments to estimate the shock properties.
PI: Prof. Steve Ceccio
Students: Juliana Wu, Anubhav Bhatt

Vortex Cavitation


This study involves the use of tomographic particle image velocimetry to study the interaction of two co- and counter-rotating vortices to understand the role of in stretching in cavitating inception.

PI: Prof. Steve Ceccio
Students: Daniel Knister, Elizabeth Callison, Josh Parmet, Andrew Zamiara

Data Driven Understanding of Physical Processes





Students: Daniel Knister Collaborators: Prof. Venkat Raman, Shivam Barwey, Malik Hassanaly, Prof. Eric Johnsen

High-speed X-Ray CT for Multi-phase Flows


This project involves the development of a time resolved 3-D computed X-ray tomographic system. The system was concieved by Prof Makiharju at University of California, Berkeley. This is a colloborative effort.

PI: Prof. Steve Ceccio and Prof. Simo Makiharju (U.Cal Berkeley)
Students: Kevin Xu, Daniel Knister

Let's Get In Touch!


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