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Shekhar Sarpotdar
PhD Candidate


Address: Illinois Institute of Technology
10 W. 32nd Street
Engineering 1 Building, Room 048
Chicago, IL 60616

Phone: (312) 567-7233
Cell phone: (510) 303-1316
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Education

  • January 2004 - Present
    PhD Candidate, GPA: 3.86
    Illinois Institute of Technology, Chicago, USA
  • August 2002 - December 2004
    MS in Mechanical & Aerospace Engineering
    Illinois Institute of Technology, Chicago, USA
  • July 1998 - July 2001
    BE in Mech. Engg.
    University of Bombay, Bombay, India
  • July 1994 - July 1998
    Diploma in Mech. Engg.
    University of Bombay, Bombay, India

Research Interests

Aeroacoustics, jet noise, active flow control

Current Research

Cavity tone suppression using rod in cross flow: experimental/theoretical work to investigate working principle of the rod-in-cross-flow actuator for the cavity tone suppression.

Jet noise suppression using high frequency excitation: experimental work to demonstrate the efficacy of ultrasonic Powered Resonance Tubes (PRT) to suppress subsonic and weakly supersonic jet noise.

Honors and Awards

  • Recipient of the Fifty for Future award sponsored by Illinois Tech Association (ITA) for innovation and leadership (2008)
  • Awarded second prize for the poster "Ultrasonic Actuator Concept for Jet Noise Suppression," IIT Research Poster Competition, Illinois Institute of Technology (2008)
  • Recipient of the Dean's Scholarship at the Illinois Institute of Technology (Fall 2002, Spring 2003)
  • Awarded second prize for the paper "Advances in Manufacturing Technologies: Rapid Prototyping" in "COSMOS 2000" (2000)

Scientific and Professional Society Memberships

  • AIAA, student membership

Publications

  • Theses

    PhD thesis "Cavity Tone Suppression Using Rod in Cross Flow," advisor Dr. Ganesh Raman, sponsor AFOSR, experimental/theoretical work to investigate working principle of the rod-in-cross-flow actuator for the cavity tone suppression.

    Masters thesis "Powered Resonance Actuators for Jet Impingement Tone Suppression," advisor Dr. Ganesh Raman, sponsor AFOSR, development of the large bandwidth aeroacoustics actuator called Powered Resonance Tubes (PRT) to suppress the jet impingement tone. The work aimed at demonstrating the efficacy a novel active flow control technology, i.e., high frequency forcing.

  • Journal Publications

    Sarpotdar, S., and Raman, G., "Linear Stability of a Hybrid Mean Velocity Profile and its Relevance to Cavity Resonance Suppression," Physics of Fluids (under review).

    Sarpotdar, S., Raman, G., and Cain, A. B., "Jet Impingement Tone Suppression Using Powered Resonance Tube," AIAA Journal, Vol. 45, No. 5 (2007) pp. 972-979.

    Sarpotdar, S., Raman, G., and Cain, A. B., "Powered Resonance Tubes: Resonance Characteristics and Actuation Signal Directivity," Experiments in Fluids, Vol. 39, No. 6 (2005) pp. 1084-1095.

    Sarpotdar, S., Ananthkrishnan, N., and Sharma, S. D., "The Rijke Tube - a Thermo-acoustic Device," Resonance, Jan. 2003, pp. 59-71.

    Sarpotdar, S., and Raman, G., "Influence of Shedding Rod on Cavity Flow Dynamics" (in preparation).

    Sarpotdar, S., and Raman, G., "Influence of Stability of Wake of the Inner Nozzle on the Aeroacoustics of Coannular Jets" (in preparation).

    Chaudhari, K., Sarpotdar, S., and Raman, G., "Development of Ultrasonic Powered Resonance Tube Actuators to Suppress Jet Noise" (in preparation).

  • Conference Publications

    Sarpotdar, S., Raman, G., and Cain, A. B., "Actuation Signal Directivity and Supply Pressure Effects in Powered Resonance Tubes," 42nd AIAA Aerospace Sciences Meeting and Exhibit, 2004, AIAA Paper 2004-678.

    Raman, G., Sarpotdar, S., Tassy, J., Cain A., B., and Kerschen, E. J., "An Overview of the Development of High Bandwidth Resonance Tube Actuators: Experiments and Simulations," Proceedings of the ASME/JSME Joint Fluids Engineering Conference, Vol. 1A (2003) pp. 301-306.

    Sarpotdar, S., and Raman, G., "Influence of Shedding Rod on Cavity Flow Dynamics," 15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference), Miami, May 2009.

    Cain, A. B., Kerschen, E. J., Raman, G., and Sarpotdar, S., "Simulation of Powered Resonance Tubes: Understanding Parameter Space," 9th AIAA/CEAS Aeroacoustics Conference and Exhibit, Hilton Head, South Carolina, May 2003, AIAA Paper 2003-3103.

    Raman, G., Cain, A. B., and Sarpotdar, S., "Features of the Operation of Powered Resonance Tube Actuators: Experiments and Simulations," ASME Conference, Hawaii, August 2003.

    Panickar, P., Sarpotdar, S., and Raman, G., "An Experimental Study of Instability Modes in a High-speed Impinging Jet Using Nonlinear Spectral Analysis," ASME International Mechanical Engineering Conference and Exposition, November 2006, Paper IMECE2006-16369.

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Faculty

Kevin W. Cassel, PhD
Hassan M. Nagib, PhD
Ganesh G Raman, PhD
Dietmar Rempfer, PhD
Candace E. Wark, PhD
David R. Williams, PhD (Director)

Coordinator

Elena Magnus

Ph.D. Students

Michael Boghosian
Michael Dominik
Richard Duncan
Sriharsha Kandala
Wesley Kerstens
Paritosh Mokhasi
Bruno Monnier
Vien Quach
Chetan Sardesai
Shekhar Sarpotdar
Ricardo Vinuesa Motilva

Master's Degree Students

Gregoire Boulard
Seth Buntain
Kedar Chaudhari
Kristofer Dressler
Sudhahar Nagarajan
Rakesh Ramachandran
Brian Rojas
Paul Rozier
Seth Thomas
Denis Vasilescu

Undergraduate Students

Cari Hesser
Galina Shpuntova
Stefan Stevanovic

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