Laurens E. Howle
Associate Professor of Mechanical Engineering and Materials Science
Professor Howle's research interests span the disciplines of thermal science, fluid dynamics, and nonlinear dynamics. His present research projects - visualization of convective fluid patterns, stabilization of the no-motion state in free convection and bifurcation in imperfect or distributed parameter systems - are split evenly between experimental and computational methods.
A key problem facing researchers studying convection in fluid-saturated porous media is the lack of a general, non-invasive method for pattern visualization and wave number measurement. Professor Howle designed innovative porous media which allow optical techniques to be used for the first time as a pattern visualization tool in the study of porous media convection.
Computational spectral methods are efficient methods of simulation of small aspect ratio convection systems. For large problems, these methods can become too expensive to be practical. Professor Howle developed a reduced Galerkin method which decreases the execution time by orders of magnitude for large problems. This extends the range of problems for which certain spectral methods may be used. He is currently studying porous free convection in systems with distributed properties and binary convection using the reduced Galerkin method.
Appointments and Affiliations
- Associate Professor of Mechanical Engineering and Materials Science
- Associate Professor of Radiology
- Office Location: 239 Hudson Eng Bldg, Durham, NC 27708-0300
- Office Phone: (919) 660-5331
- Email Address: firstname.lastname@example.org
- Ph.D. Duke University, 1993
Hydroelastic modeling of deformable structures, transport in thermal and chemical systems, experimental and computational fluid dynamics, nonlinear and complex systems, heat and mass transport in biological systems, stability of fluid motions, machine learning, data mining, econophysics, reduced order modeling, modeling of decompression sickness, pharmacokinetics and pharmacodynamics, mechanical design, manufacturing engineering, wind power.
Awards, Honors, and Distinctions:
- INDEX: Design Award, Nominee/Finalist, Design to Improve Life, Community Category, August, 2009
- ONR Young Investigator Program Award, Office of Naval Research, 1999
- ME 321L: Mechanical Engineering Analysis for Design
- ME 391: Undergraduate Projects in Mechanical Engineering
- ME 492: Special Projects in Mechanical Engineering
- ME 555: Advanced Topics in Mechanical Engineering
- ME 639: Computational Fluid Mechanics and Heat Transfer
- ME 759: Special Readings in Mechanical Engineering
Representative Publications: (More Publications)
- Weber, Paul W. and Howle, Laurens E. and Murray, Mark M. and Miklosovic, David S., Computational Evaluation of the Performance of Lifting Surfaces with Leading-Edge Protuberances, JOURNAL OF AIRCRAFT, vol 48 no. 2 (2011), pp. 591--600 [doi] [abs].
- Weber, Paul W. and Howle, Laurens E. and Murray, Mark M. and Corless, Joseph M., A Simplified Mass-Transfer Model for Visual Pigments in Amphibian Retinal-Cone Outer Segments, BIOPHYSICAL JOURNAL, vol 100 no. 3 (2011), pp. 525--534 [doi] [abs].
- Fish, F.E., Weber, P.W., Howle, L.E., Murray, M.M., Reidenberg, J.S., Hydrodynamic performance of the flippers of large-bodied cetaceans, Secondary Adaptation of Tetrapods to Life in Water (2011).
- Fish, F.E., Weber, P.W., Murray, M.M. & Howle, L.E., The Tubercles on Humpback Whales' Flippers: Application of Bio-Inspired Technology, Integrative and Comparative Biology, vol 51 (2011), pp. 203-213 [abs].
- Di Muro, G., Howle, L.E. & Vann, R.D., Partitioned risk analysis of NAVY decompression dives (December 10, 2010), pp. 818.
- Professional Engineer, North Carolina, license number 035790
- Professional Engineer, Maryland, license number 37985
- Dive Master, PADI, license number 238981
- Master Diver (PADI)
- Technical Deep Diver (DSAT)
- American Society of Mechanical Engineers
- Professional Engineers of North Carolina
- American Physical Society
- Professional Association of Dive Instructors
- Underwater and Hyperbaric Medical Society