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Howard Stone

Howard A. Stone

Donald R. Dixon '69 and Elizabeth W. Dixon Professor of Mechanical and Aerospace Engineering

B.S., University of California at Davis, 1982
Ph.D., California Institute of Technology, 1988

Room: D326 Engineering Quad
Phone: 609-258-9493

Webpage: Stone Fluid Dynamics Group

Honors and Awards

  • National Academy of Sciences, 2014
  • American Academy of Arts and Sciences, 2011
  • Distinguished Engineering Alumni Award, UC Davis, 2009
  • National Academy of Engineering, 2009
  • Southwest Mechanics Lecture, 2009
  • Brooke Benjamin Lecture in Fluid Mechanics, Oxford University, 2008
  • G.K. Batchelor Prize in Fluid Mechanics, 2008
  • Fellow, Division of Fluid Dynamics of the American Physical Society, 2003
  • Midwest Mechanics Lecturer, 2002-3
  • Joseph R. Levenson Memorial Award, 1994
  • Phi Beta Kappa teaching Prize, 1994

Concurrent University Appointments

  • Associated Faculty, Department of Chemical Engineering


Research Areas

Research Interests

Fluid motions dominated by viscosity, so-called low-Reynolds-number flows, have many applications, including the lubricating motions important to the operation of mechanical equipment (and joints), coating flows important to a myriad of industrial applications, and flows and transport processes in microdevices (MEMS) that are finding many new applications owing to their use for handling small quantities of (possibly expensive) liquids and for manipulating polymers. The flow of many suspensions are also often dominated by viscous effects as are the way in which fluid moves in foams and dense colloidal suspensions. Professor Stone and his research group actively work on projects in each of these areas of fluid dynamics. Several of the projects combine theory and experiment in order to more fully explore the limits of both.

Another common theme of viscous flow theory being pursued by Professor Stone and his collaborators is the dynamics of fluid-fluid interfaces. This research includes analytical and numerical studies (often using integral equation methods) of (1) the stretching and breakup of fluid threads and (2) the effect of electric fields on drops and other fluid-fluid interfaces. Because a complete understanding of some viscously dominated flows (such as lift forces) may require incorporating the influence of inertia, Professor Stone also uses asymptotic methods to study flows at small, but finite, Reynolds numbers.

Many biologically inspired problems occur in the viscously dominated flow limit. Professor Stone has studied several problems concerning the flow of lipid monolayers and bilayers, and has investigated the motions of particles suspended in such interfacial layers. This research area is actively pursued by researchers at the interface of chemistry, physics and engineering.