Roger Arndt

 Roger Arndt

  Professor Emeritus of Civil Engineering

Office: Saint Anthony Falls Laboratory RM 153

Email: arndt001@umn.edu

Phone: (612)625-2883

Curriculum Vitae

Dr. Arndt is a Professor Emeritus, University of Minnesota. His major research interests are in the area of fluid mechanics with emphasis on turbulent shear flows and vortex flows; cavitation; aeroacoustics including jet noise and turbomachinery noise; alternate energy with an emphasis on hydropower and wind turbine technology; and aeration technology with a view towards developing cost effective environmental remediation techniques.

Dr. Arndt's research experience includes cavitation in pumps, turbines and marine propellers; supercavitation, investigation of noise radiation mechanisms in turbulent shear flows, bubbly flows and helicopter and jet noise. The principles of bubble formation in turbulent shear flows are being applied to the design of more efficient aeration equipment and ventilation of supercavitating vehicles. His experience in the design of research facilities for cavitation and hydroacoustics has lead to the design responsibility for three major hydroacoustic research facilities in the US, Germany and Korea, one of which is the World’s largest water tunnel. His industrial experience includes underwater rocket propulsion, high-speed marine vehicles and waterjet propulsion.

Dr. Arndt served as Director of the St. Anthony Falls Hydraulic Laboratory for 16 years and as program Manager of the Fluid Mechanics and Hydraulics Program at the National Science Foundation for 3 years. Dr. Arndt continues his research at the St. Anthony Falls Laboratory of the University of Minnesota where he is working on wind turbine aerodynamics and supercavitation. He is a Life Fellow of ASME, Fellow of the American Physical Society, and Associate Fellow of AIAA.

Education

Ph.D., 1967, Civil Engineering, Hydrodynamics, – Massachusetts Institute of Technology

S.M. , 1962, Civil Engineering, Hydrodynamics - Massachusetts Institute of Technology

B.C.E., 1960, Civil Engineering - City College of New York

Experience

2009 - Present: Professor Emeritus

1977-2009: Professor, Department of Civil Engineering, University of Minnesota

1995-1998: Director, Fluid Dynamics and Hydraulics Program, National Science Foundation

1977-1993: Director, Saint Anthony Falls Laboratory, University of Minnesota

1981-1994: Chairman of Fluid Mechanics Program, Graduate School, University of Minnesota

1971-1977: Associate Professor of Aerospace Engineering, The Pennsylvannia State University

1967-1971: Assistant Professor of Aerospace Engineering, The Pennsylvannia State University

1964-1967: NASA Fellow, Massachusetts Institute of Technology

1965 : Mechanical Engineer, Littleton Research and Engineering Corporation, Little, MA

1963-1964: Sr. Research Engineer, Lockheed California Company, Burbank, CA

1962-1963: Research Engineer, Allegheny Ballistics Laboratory, Cumberland, MD

1960-1962: Research Assistant, Hydronamics Laboratory, Massachusetts Institute of Technology

1960 : Jr. Civil Engineer, Department of Public Works, New York City

1956-1957: Chemist, Consolidated Testing Laboratories, New Hyde Park, NY

Research Specialties

  • Experimental Fluid Dynamics
  • Turbulent Shear Flows and Vortex Flows
  • Cavitation including Inception Physics
  • Erosion Mechanisms
  • Noise and Viration and effects on Turbomachinery Performance
  • Aeroacoustics including jet noise and Turbomachinery Noise
  • Alternate Energy with an emphasis on Hydropower and Wind Turbine Energy
  • Aeration Technology with a view towards developing cost effective Enviromental Remediation Techniques

    • Honors and Awards

  • Charles W. Britzius Distinguished Engineer (2002)
  • ASME Fluids Engineering Award (1993)
  • Alexander von Humboldt Senior Scientist Award (1989, 1994)
  • Lorenz G. Straub Award (1968)
  • George Taylor Teaching Award (1978)
  • AIAA Outstanding Faculty Advisor Award (4 awards 1971-1974)
  • First Theodor Ranov Distinguished Lecturer (1978)
  • Fellow, American Physical Society
  • Life Fellow, American Society of Mechanical Engineers
  • Associate Fellow, American Institute of Aeronautics and Astronautics

    • Selected Books and Chapters

  • “Hydraulic Turbines” Chapt. 8.4, Handbook of Mechanical Engineering, F. Kreith, ed. CRC Press (2004)
  • “Hydraulic Turbines,” Section 73 in The Engineering Handbook, R. Dorf, ed., CRC Press (2004) pp. 73-1 - 73-18
  • Stefan, H.G.; Foufoula, E.; and Arndt R.E.A. (2004) The Saint Anthony Falls Laboratory: A Rich History and a Bright Future in Water Resources and Environmental History, G. Brown, J. Garbrecht, and J. Rogers (editors), EWRI/ASCE (2004) 11pp
  • Balas, G.J.; Bokor, J.; Vanek, B.; and Arndt R.E.A. (2006) Control of High-speed Underwater Vehicles, Control of Uncertain Systems: Modeling, Approximation, and Design, B. Francis, M. Smith and J. Willems editors, Springer Verlag (2006)
  • Arndt, R.E.A.; Kawakami, D.; and Wosnik, M. (2007) Measurements In Cavitating Flows Handbook of Fluid Mechanics Measurements, Springer Verlag (Dec. 2007)

    • Journal papers, conference proceedings, reports

  • Kawakami, E and Arndt, REA., Investigation of the Behavior of Ventilated Supercavities, J. Fluids Engineering, Volume 133, Issue 9, (Sept. 2011)
  • Chamorro, LP, Arndt, REA and Sotiropoulos, F, Reynolds number dependence of turbulence statistics in the wake of wind turbines, Wind Energy, (2011)
  • Chamorro, LP, Arndt, REA and Sotiropoulos, F, Turbulent properties around a staggered wind farm. Boundary Layer Meteorology. (Aug. 2011)
  • Chamorro, LP and Arndt, REA Non-uniform velocity distribution effect on the Betz limit. Wind Energy. Under review
  • Mokhtarzadeh, H, Balas, G and Arndt, REA, "Effect of Cavitator on Supercavitating Vehicle Dynamics" Accepted for publication in IEEE Journal of Oceanic Engineering (Sept. 2011)
  • “Experimental and Numerical Investigation of Large Scale Structures in Cavitating Wakes” (with M. Wosnik and Q. Qin) AIAA Fluid Dynamics Conference, San Francisco, CA, (June 3, 2006) AIAA Paper 2006-3046
  • “From Wageningen to Minnesota and Back: Perspectives on Cavitation Research” Keynote Lecture, Proceedings Sixth International Symposium on Cavitation, CAV2006, Wageningen, The Netherlands (Sept. 2006)
  • “The Role of the University in Hydropower Development” 1000MW Turbine and Fluid Dynamics, Royal Academy Project “Exchange with China”, Warwick University, UK (July 2008)
  • “Some Perspectives on Cavitation Research” Keynote Lecture, Proceedings of the 24th IAHR Symposium on Hydraulic Machinery and Systems, Foz do Iguassu, Brazil (Oct. 2008)
  • “Some Remarks on Hydrofoil Cavitation” WIMRC 3rd International Cavitation Forum 2011, Warwick University, UK (July 2011)
  • Wosnik, M and Arndt, REA “Control experiments with a semi-axisymmetric supercavity and a supercavity-piercing fin” Proceedings of the 7th International Symposium on Cavitation CAV2009 August 17-22, 2009, Ann Arbor, Michigan, USA
  • Wosnik, M and Arndt, REA “Further experimental investigation of a high Reynolds number bubbly wake”Proceedings of the 7th International Symposium on Cavitation CAV2009 August 17-22, 2009, Ann Arbor, Michigan, USA
  • Arndt, REA “Sheet/Cloud Cavitation Revisited” Proceedings The 13th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery Honolulu, Hawaii, April 4-9, 2010
  • Kawakami, E and Arndt, REA “Investigation of the behavior of ventilated Supercavities” 8th Euromech Fluid Mechanics Conference, September 13-16, 2010, Bad Reichenhall, Germany (Abstract Only)
  • Chamorro, L, Arndt, REA and Sotiropoulis, F “On skin friction drag reduction in large wind turbines using sharp V-grooved riblets” Proceedings 49th AIAA Aerospace Sciences Meeting, Orlando, FL, January 4-7, 2011