The focus of Professor Davis’ research is the development of mathematical models to provide a fundamental understanding of microscale fluid dynamics on heterogeneous surfaces.This heterogeneity results from chemical patterning, topographical variations, and differential heating of the substrate, all of which lead to significant deviations from fluidic behavior on uniform surfaces. Flows over these non-uniform surfaces are crucial to applications that include microfluidic analytical devices and sensors, micro-electro-mechanical systems, and micro-fabrication processes. This research has two major thrusts: (1) free-surface flows on heterogeneous surfaces that enable improved performance and fabrication of micro-devices and (2) particle dynamics in flow over nanotextured surfaces that form the basis for biomimetic sensors.
Physical and Chemical Conversion
The Intrinsic Kinetics and Heats of Reactions for Cellulose Pyrolysis and Char Formation (with Joungmo Cho, Yenhan Lin, and George W. Huber), Conference on Cellulosic Biofuels (2010)
The conversion of biomass into biofuel products by pyrolysis has attracted tremendous interests due to...
2010
Mechanics of bite force production and its relationship to diet in bats (with SE Santana and ER Dumont), Functional Ecology (2010)
1. In vertebrates, bite force is a measure of whole organism performance that is associated...
Predicting bite force in mammals: two-dimensional versus three-dimensional lever models (with SE Santana, ER Dumont, and IR Grosse), Journal of Experimental Biology (2010)
Bite force is a measure of whole-organism performance that is often used to investigate the...
Stabilization of thin liquid films flowing over locally heated surfaces via substrate topography (with N Tiwari), Physics of Fluids (2010)
A long-wave lubrication analysis is used to study the influence of topographical features on the...
Successful Recruitment and Distance Training of Clinicians in an Adolescent Smoking Cessation Pilot Study in AAP Pros Practices (with J Klein, T Sesselberg, L Pbert, J Steffes, D Harris, E Sutter, E Gotlieb, E Slora, and R Wasserman), Journal of Adolescent Health (2010)
Background: 20% of adolescents report smoking in the past month. Evidence for cessation counseling for...
2009
Linear stability of a volatile liquid film flowing over a locally heated surface (with N Tiwari), Physics of Fluids (2009)
The dynamics and linear stability of a volatile liquid film flowing over a locally heated...
Nonmodal and nonlinear dynamics of a volatile liquid film flowing over a locally heated surface (with N Tiwari), Physics of Fluids (2009)
The stability of a thin, volatile liquid film falling under the influence of gravity over...
The impact of nanoscale chemical features on micron-scale adhesion: Crossover from heterogeneity-dominated to mean-field behavior (with R Duffadar, S Kalasin, and MM Santore), Journal of Colloid and Interface Science (2009)
This work explores the impact of nanoscale surface heterogeneity, small relative to the effective contact...
2008
Asymptotic analysis of the selective dip coating of power-law fluids (with N Tiwari), Physics of Fluids (2008)
The dip coating of a chemically micropatterned surface bearing alternating wetting and nonwetting vertical strips...
Dynamic adhesion behavior of micrometer-scale particles flowing over patchy surfaces with nanoscale electrostatic heterogeneity (with RD Duffadar), Journal of Colloid and Interface Science (2008)
The dynamic adhesion behavior of micrometer-scale silica particles is investigated numerically for a low Reynolds...
Manipulating microparticles with single surface-immobilized nanoparticles (with J Zhang, S Srivastava, R Duffadar, VM Rotello, and MM Santore), Langmuir (2008)
This experimental study explores the capture and manipulation of micrometer-scale particles by single surfaceimmobilized nanoparticles....
2007
Interaction of micrometer-scale particles with nanotextured surfaces in shear flow (with RD Duffadar), Journal of Colloid and Interface Science (2007)
Dynamic particle adhesion from flow over collecting surfaces with nanoscale heterogeneity occurs in important natural...
Soy protein and isoflavones influence adiposity and development of metabolic syndrome in the obese male ZDF rat (with A Higginbotham, T O'Connor, N Moustaid-Moussa, A Tebbe, YC Kim, KW Cho, N Shay, S Adler, R Peterson, and W Banz), Annals of Nutrition and Metabolism (2007)
BACKGROUND/AIMS: Previously, we demonstrated that soy protein ameliorates the diabetic phenotype in several rodent models...
Stability and transient dynamics of thin liquid films flowing over locally heated surfaces (with N Tiwari and Z Mester), Physical Review E (2007)
The dynamics and linear stability of a liquid film flowing over a locally heated surface...
2006
Theoretical analysis of the effect of insoluble surfactant on the dip coating of chemically micropatterned surfaces (with N Tiwari), Physics of Fluids (2006)
Microfluidic flow on chemically heterogeneous surfaces is a useful technique with applications ranging from selective...
Transient dynamics and structure of optimal excitations in thermocapillary spreading: Precursor film model (with DE Kataoka and SM Troian), Physics of Fluids (2006)
Linearized modal stability theory has shown that the thermocapillary spreading of a liquid film on...
2005
Asymptotic analysis of liquid films dip-coated onto chemically micropatterned surfaces, Physics of Fluids (2005)
The dip coating of chemically heterogeneous surfaces is a useful technique for attaining selective material...
Generalized linear stability of noninertial coating flows over topographical features (with SM Troian), Physics of Fluids (2005)
The transient evolution of perturbations to steady lubrication flow over a topographically patterned surface is...
2004
Influence of boundary slip on the optimal excitations in thermocapillary driven spreading (with SM Troian), Physical Review E (2004)
Thin liquid films driven to spread on homogeneous surfaces by thermocapillarity can undergo frontal breakup...
2001
Wearable computers as packet transport mechanisms in highly-partitioned ad-hoc networks (with AH Fagg and BN Levine), Fifth International Symposium on Wearable Computers, Proceedings (2001)
The decreasing size and cost of wearable computers and mobile sensors is presenting new challenges...
1999
Discovering dynamics using Bayesian clustering (with P Sebastiani, M Ramoni, P Cohen, and J Warwick), Advances in Intelligent Data Analysis, Proceedings (1999)
This paper introduces a Bayesian method for clustering dynamic processes and applies it to the...