Skip to Main Content

Stephen Pennell

Stephen Pennell
Stephen A PennellProfessor

Research Interests

mathematical modeling, fluid flow

nonlinear wave propagation and interaction, drop shape analysis

Education

  • Ph D: Applied Mathematics, (1982), Brown University - Providence, RI
    Dissertation/Thesis Title: Solitary waves of large amplitude
  • MS: Applied Mathematics, (1979), Brown University - Providence, RI
  • BS: Mathematics, (1977), Rensselaer Polytechnic Institute - Troy, NY

Awards and Honors

  • Exceeding Expectations Teaching Award (2012), Teaching - Student Government Association
  • Dept. of Athletics Teaching Award (2009), Teaching - UML
  • Student Organization Advisor of the Year (2007), Leadership - UML
  • Exceeding Expectations Teaching Award (2006), Teaching - Student Government Association
  • Listed in Who's Who Among America's Teachers (2005), Teaching - Who's Who Among America's Teachers
  • Department of Mathematical Sciences Teaching Excellence Award (2004), Teaching - UML
  • Exceeding Expectations Teaching Award (2004), Teaching - Student Government Association
  • Listed in Who's Who Among America's Teachers (2004), Teaching - Who's Who Among America's Teachers
  • Department of Mathematical Sciences Teaching Excellence Award (1999), Teaching - UML
  • UML Disability Services Recognition Award (1999), Service, Community - UML
  • Listed in Who's Who Among America's Teachers (1998), Teaching - Who's Who Among America's Teachers
  • Department of Mathematical Sciences Teaching Excellence Award (1997), Teaching - UML
  • Dept. of Athletics Teaching Award (1997), Teaching - UML
  • UML Council on Undergraduate Teaching Award (1993), Teaching

Publications

  • Zhu, B., Pennell, S.A., Ryan, D.K. (2014) "Characterizing the interaction between uranyl ion and soil fulvic acid using parallel factor analysis and a two-site fluorescence quenching model," Microchemical Journal 115: pp. 51–57
  • Pennell, S.A., Avitabile, P., White, J. (2009) "An engineering-oriented approach to the introductory differential equations course," PRIMUS 19:1 pp. 88-99
  • Inyang, H.I., Rossi, L., Graham-Eagle, J., Pennell, S.A., Menezes, G.B. (2007) "Modelling smectite illitization in earthen barriers of buried radioactive wastes," Geomechanics and Geoengineering 2:2 pp. 87-95
  • Golomb, D., Pennell, S.A., Ryan, D., Barry, E., Swett, P. (2007) "Ocean sequestration of carbon dioxide: Modeling the deep ocean release of a dense emulsion of liquid CO2-in-water stabilized by pulverized limestone particles," Environmental Science and Technology 41:13 pp. 4698-4704
  • Pennell, S.A., Avitabile, P., White, J.R. (2005) "An interdisciplinary, multisemester project relating differential equations and engineering,"
  • Rossi, L., Inyang, H., Graham-Eagle, J., Pennell, S.A. (2005) "Closure to “A Model of Coupled Heat and Moisture Transport in an Annular Clay Barrier” by L. Rossi, HI Inyang, J. Graham-Eagle, and S. Pennell," Journal of Environmental Engineering 131:11 pp. 1615–1616
  • Prunty, L., Rossi, L., Inyang, H.I., Graham-Eagle, J., Pennell, S.A. (2005) "Discussion of "A model of coupled heat and moisture transport in an annular clay barrier" by L. Rossi. H. I. Inyang, J. Graham-Eagle, and S. Pennell," Journal of Environmental Engineering 131:11 pp. 1614-1616
  • Rossi, L., Inyang, H., Graham-Eagle, J., Pennell, S.A. (2004) "A model of coupled heat and moisture transport in an annular clay barrier," Journal of Environmental Engineering 130:8 pp. 855–862
  • Hays, M.D., Ryan, D.K., Pennell, S.A. (2004) "A Modified Multisite Stern-Volmer Equation for the Determination of Conditional Stability Constants and Ligand Concentrations of Soil Fulvic Acid with Metal Ions," Analytical Chemistry 76:3 pp. 848-854
  • Hays, M.D., Ryan, D.K., Pennell, S.A. (2003) "Multi-wavelength fluorescence-quenching model for determination of Cu2+ conditional stability constants and ligand concentrations of fulvic acid," Applied Spectroscopy 57:4 pp. 454-460
  • Graham-Eagle, J., Pennell, S.A. (2000) "Contact angle calculations from the contact/maximum diameter of sessile drops," International journal for numerical methods in fluids 32:7 pp. 851–861
  • Amirfazli, A., Graham-Eagle, J., Pennell, S.A., Neumann, A. (2000) "Implementation and examination of a new drop shape analysis algorithm to measure contact angle and surface tension from the diameters of two sessile drops," Colloids and Surfaces A: Physicochemical and Engineering Aspects 161:1 pp. 63–74
  • Hays, M.D., Ryan, D.K., Pennell, S.A. (1998) "A multi-site data treatment for modeling the fluorescence enhancement of fulvic acid caused by the binding of aluminum," ACS Division of Environmental Chemistry, Preprints 38:2 pp. 102-104
  • Pennell, S.A., Graham-Eagle, J. (1996) "Sessile Drops on Slightly Uneven Hydrophilic Surfaces," 1:
  • Pennell, S.A., Mirie, R. (1995) "Weak oblique collisions of interfacial solitary waves," Wave Motion 21:4 pp. 385-404
  • Pennell, S.A. (1990) "A note on exact relations for solitary waves," Physics of Fluids A 2:2 pp. 281-284
  • Pennell, S.A., Deignan, J. (1989) "Computing the projected area of a cone," SIAM Review 31:2 pp. 299-302
  • Mirie, R.M., Pennell, S.A. (1989) "Internal solitary waves in a two-fluid system," Physics of Fluids A 1:6 pp. 986-991
  • Pennell, S.A. (1987) "ON A SERIES EXPANSION FOR THE SOLITARY WAVE.," Journal of Fluid Mechanics 179: pp. 557-561
  • Pennell, S.A., Su, C.H. (1984) "SEVENTEENTH-ORDER SERIES EXPANSION FOR THE SOLITARY WAVE.," Journal of Fluid Mechanics 149: pp. 431-443

Presentations

  • Vertical Teams: The Power of Partnerships with Middlesex Community College, UMass Lowell and Lowell Public Schools - Education for the Future, April 2010 - Merrimack College
  • Teaching differential equations with an engineering focus - American Society for Engineering Education annual meeting, June 2006 - Chicago, IL
  • The unreasonable effectiveness of mathematics - Colby-Sawyer College Natural Sciences Department Seminar, February 2005
  • Mathematical Models of Two Groundwater Flow Systems - University of Massachusetts CCES Seminar, February 2002
  • Determination of the shape of slightly asymmetric sessile drops from diameter measurements - Annual meeting of the Society for Industrial and Applied Mathematics, July 1997 - Stanford University
  • Sessile drops on slightly uneven hydrophilic surfaces - Annual meeting of the American Physical Society Division of Fluid Dynamics, November 1996 - Syracuse
  • Weak oblique collisions of interfacial solitary waves - University of Massachusetts Lowell Electrical Engineering Seminar, April 1995
  • A variational method for computing the shape of pendant and sessile liquid drops - University of Massachusetts Lowell Mathematics Colloquium, April 1995
  • Oblique collisions of interfacial solitary waves - Annual meeting of the American Physical Society Division of Fluid Dynamics, November 1994 - Atlanta
  • Oblique collisions of solitary waves - Nonlinear Study Group Colloquium, October 1993 - University of New Hampshire
  • Mathematical, Graphing, and Animation - Teaching with Technology Symposium, April 1993 - U. Mass. Lowell
  • Calculus in a Real and Complex World: An Alternative Calculus Sequence - U. Mass. Lowell Math Education Colloquium, February 1993
  • Oblique collisions of solitary waves - U. Mass. Lowell Applied Math/Statistics Seminar, September 1992
  • On weak oblique collisions of solitary waves - Wave Phenomena II: Modern Theory and Applications, September 1992 - University of Alberta, Edmonton
  • Generalized matrix inverses, November 1988 - Rhode Island College, Providence, RI
  • Internal solitary waves in a two-fluid system - SIAM annual meeting, July 1988 - Minneapolis, MN
  • Interaction of oceanic surface and internal waves - Brown University Applied Mathematics Seminar, December 1986
  • Interaction of surface and internal waves in the ocean, October 1985 - Alphatech, Burlington, MA
  • A series expansion for the solitary wave - SIAM annual meeting, July 1984 - Seattle, WA
  • Introduction to the theory of water waves - University of Lowell Applied Mathematics Seminar, October 1983
  • Shallow water waves and the Korteweg-deVries equation - University of Lowell Applied Mathematics Seminar, October 1983
  • Solitary waves of large amplitude - University of Lowell Applied Mathematics Seminar, October 1982

Contracts, Fellowships, Grants and Sponsored Research

  • Honors Program Development Grant (2000), Grant - Massachusetts Board of Higher Education
  • Consultant Contract (1999), Contract - Town of Rowley, MA
  • Research Contract (1987), Contract - Sanford Ecological Associates
  • Co-PI: Multi-Semester Interwoven project for teaching basic core STEM material critical to solving dynamic systems problems (2003), Grant - National Science Foundation
  • (REMS)2 program (1994), Sponsored Research - Merrimack Education Center
  • Summer Faculty Fellowship (1986), Fellowship - Office of Naval Research
  • Summer Faculty Fellowship (1985), Fellowship - Office of Naval Research