James Brasseur

About

James Brasseur is a Research Professor in the Ann and H.J. Smead Aerospace Engineering Sciences at the University of Colorado Boulder, with a focus on fluid dynamics, turbulence, aerodynamics, geophysical flows, and biomechanics. His educational background includes a Ph.D. in Aeronautical and Astronautical Science from Stanford University, along with a master's degree in Aeronautical and Astronautical Engineering from Stanford and a bachelor's degree in Aerospace Engineering from the University of Maryland. He has held numerous academic and professional positions, including guest professorships at Uppsala University in Sweden, affiliate scientist roles at the National Center for Atmospheric Research (NCAR), and visiting scientist positions at institutions such as the University of Rome Ter Vergata, Imperial College London, and the University of Cambridge. Brasseur's research interests encompass turbulence physics, turbulent flows, and turbulent combustion, as well as geophysical turbulence, wind energy, biofluid dynamics, and pharmaceutical transport in the gastrointestinal tract. His work involves large-eddy simulation, direct numerical simulation, and scientific visualization, contributing to both fundamental fluid mechanics and applied biomedical engineering.

Research topics

• Mechanics
• Physics
• Gastroenterology
• Classical mechanics
• Thermodynamics
• Chemistry
• Internal medicine
• Materials science
• Physical chemistry
• Meteorology

Selected publications

• Transition in atmospheric boundary layer turbulence structure from neutral to convective, and large-scale rolls

  Journal of Fluid Mechanics · 2021 · 38 citations

  Senior authorCorresponding

  Abstract

  PublisherOA PDFDOI

• Enhancement of mass transfer from particles by local shear‐rate and correlations with application to drug dissolution

  AIChE Journal · 2019-04-22 · 26 citations

  articleSenior authorCorresponding

  Abstract We analyze hydrodynamic enhancement of mass (or heat) release rate from small spherical particles within fluid flows from local flow shear‐rate, with application to drug dissolution. Combining asymptotic theories in the high/low shear Peclet number limits in Stokes flow with 205 carefully‐developed computational experiments, we develop accurate correlations for shear enhancement of Sherwood/Nusselt number ( Sh / Nu ) as a function of shear Peclet and Reynolds number ( S * , Re S ). The…

  PublisherDOI

• Wind turbine main bearing rating lives as determined by IEC 61400‐1 and ISO 281: A critical review and exploratory case study

  Wind Energy · 2023-11-20 · 23 citations

  reviewOpen access

  Abstract This paper studies the rating lives of wind turbine main bearings, as determined by the IEC 61400‐1 and ISO 281 standards. A critical review of relevant bearing life theory and turbine design requirements is provided, including discussion on possible shortcomings such as the existence (or not) of the bearing fatigue load limit and the validity of assuming linear damage accumulation. A detailed exploratory case study is then undertaken to determine rating lives for two models of main bea…

  PublisherOA PDFDOI

• Measurement of fasted state gastric antral motility before and after a standard bioavailability and bioequivalence 240 mL drink of water: Validation of MRI method against concomitant perfused manometry in healthy participants

  PLoS ONE · 2020 · 13 citations

  OBJECTIVE: The gastrointestinal environment in which drug products need to disintegrate before the drug can dissolve and be absorbed has not been studied in detail due to limitations, especially invasiveness of existing techniques. Minimal in vivo data is available on undisturbed gastrointestinal motility to improve relevance of predictive dissolution models and in silico tools such as physiologically-based pharmacokinetic models. Recent advances in magnetic resonance imaging methods could provi…

  PublisherOA PDFDOI

• Impacts of wind field characteristics and non-steady deterministic wind events on time-varying main-bearing loads

  Wind energy science · 2022-06-08 · 12 citations

  articleOpen access

  Abstract. This work considers the characteristics and drivers of the loads experienced by wind turbine main bearings. Simplified load response models of two different hub and main-bearing configurations are presented, representative of both inverting direct-drive and four-point-mounted geared drivetrains. The influences of deterministic wind field characteristics, such as wind speed, shear, yaw offset, and veer, on the bearing load patterns are then investigated for similarity scaled 5, 7.5, and…

  PublisherDOI

Recent grants

• NIH Grant R01DK041436

  NIH · $808k · 1997

• Space-time Loadings on Wind Turbine Blades driven by Atmospheric Boundary Layer Turbulence: Coupling LES and DES

  NSF · $337k · 2009–2013

• Micro-scale Transport as a Critical Link between Molecular-scale Absorption and Macro-scale Mixing in Gut Physiology and Function

  NSF · $720k · 2005–2010

Frequent coauthors

• Anupam Pal

  Physical Research Laboratory

  57 shared

• Werner Schwizer

  University of Zurich

  51 shared

• K. Indireshkumar

  Princeton Plasma Physics Laboratory

  41 shared

• Geoff Hebbard

  The Royal Melbourne Hospital

  41 shared

• Henryk Faas

  University of Nottingham

  40 shared

• Patrik Kunz

  Maastricht University

  40 shared

• Larry S. Miller

  Feinstein Institute for Medical Research

  38 shared

• Michael D. Fried

  University of California, Irvine

  36 shared

Education

• B.S.

  University of Maryland

  1973

• M.S.

  Stanford University

  1976

• Ph.D., Aeronautical and Astronautical Science (minor, Physics)

  Stanford University

  1979

Awards & honors

• Elected Inaugural Chair of the APS Topical Group on the Phys…
• Elected Fellow of the American Physical Society (via the Div…
• Elected to the Executive Committee of the American Physical…
• Elected to the Permanent Scientific Committee of the World O…
• Inducted into The Johns Hopkins University Society of Schola…

Similar researchers at University of Colorado Boulder

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• Dennis Akosh-33
• Alireza Doostanh-32