Research Output 1989 2017

2017

A geodesic landmark shooting algorithm for template matching and its applications

Camassa, R., Kuang, D. & Lee, L. Jan 1 2017 In : SIAM Journal on Imaging Sciences. 10, 1, p. 303-334 32 p.

Research output: Research - peer-reviewArticle

Template Matching
Shooting
Landmarks
Geodesic
Momentum
2016
5 Citations

Optimal mixing of buoyant jets and plumes in stratified fluids: Theory and experiments

Camassa, R., Lin, Z., McLaughlin, R. M., Mertens, K., Tzou, C., Walsh, J. & White, B. Feb 1 2016 In : Journal of Fluid Mechanics. 790, p. 71-103 33 p.

Research output: Research - peer-reviewArticle

plumes
fluids
Fluids
Experiments
profiles
1 Citations

Solitary Waves and N-Particle Algorithms for a Class of Euler–Poincaré Equations

Camassa, R., Kuang, D. & Lee, L. Nov 1 2016 In : Studies in Applied Mathematics. 137, 4, p. 502-546 45 p.

Research output: Research - peer-reviewArticle

Solitary Waves
Poincaré
Euler
kernel
Class
2015
5 Citations

Delayed settling of marine snow: Effects of density gradient and particle properties and implications for carbon cycling

Prairie, J. C., Ziervogel, K., Camassa, R., McLaughlin, R. M., White, B. L., Dewald, C. & Arnosti, C. Oct 1 2015 In : Marine Chemistry. 175, p. 28-38 11 p.

Research output: Research - peer-reviewArticle

marine snow
carbon
particle
effect
Snow
3 Citations

On viscous film flows coating the interior of a tube: Thin-film and long-wave models

Camassa, R. & Ogrosky, H. R. Jun 1 2015 In : Journal of Fluid Mechanics. 772, p. 569-599 31 p.

Research output: Research - peer-reviewArticle

planetary waves
tubes
coatings
thin films
Thin films
2 Citations

Squaring the Circle: Geometric Skewness and Symmetry Breaking for Passive Scalar Transport in Ducts and Pipes

Aminian, M., Bernardi, F., Camassa, R. & McLaughlin, R. M. Oct 5 2015 In : Physical Review Letters. 115, 15, 154503

Research output: Research - peer-reviewArticle

skewness
ducts
broken symmetry
scalars
aspect ratio

Topological effects on vorticity evolution in confined stratified fluids

Camassa, R., Falqui, G., Ortenzi, G. & Pedroni, M. Jul 3 2015 In : Journal of Fluid Mechanics. 776, p. 109-136 28 p.

Research output: Research - peer-reviewArticle

vorticity
fluids
Vorticity
Fluids
intersections
2014
1 Citations

On variational formulations and conservation laws for incompressible 2D Euler fluids

Camassa, R., Falqui, G., Ortenzi, G. & Pedroni, M. 2014 In : Journal of Physics: Conference Series. 482, 1, 012006

Research output: Research - peer-reviewArticle

ideal fluids
stratification
conservation laws
conservation
gravitation
3 Citations

Topological selection in stratified fluids: An example from air-water systems

Camassa, R., Chen, S., Falqui, G., Ortenzi, G. & Pedroni, M. 2014 In : Journal of Fluid Mechanics. 743, p. 534-553 20 p.

Research output: Research - peer-reviewArticle

fluids
air
water
Fluids
Air
5 Citations

Viscous film flow coating the interior of a vertical tube. Part 1. Gravity-driven flow

Camassa, R., Ogrosky, H. R. & Olander, J. Apr 25 2014 In : Journal of Fluid Mechanics. 745, p. 682-715 34 p.

Research output: Research - peer-reviewArticle

gravitation
tubes
coatings
Gravitation
Coatings
2013
12 Citations

Delayed settling of marine snow at sharp density transitions driven by fluid entrainment and diffusion-limited retention

Prairie, J. C., Ziervogel, K., Arnosti, C., Camassa, R., Falcon, C., Khatri, S., McLaughlin, R. M., White, B. L. & Yu, S. Jul 30 2013 In : Marine Ecology Progress Series. 487, p. 185-200 16 p.

Research output: Research - peer-reviewArticle

marine snow
entrainment
fluid
snow
fluids
6 Citations

Effects of inertia and stratification in incompressible ideal fluids: Pressure imbalances by rigid confinement

Camassa, R., Chen, S., Falqui, G., Ortenzi, G. & Pedroni, M. May 2013 In : Journal of Fluid Mechanics. 726, p. 404-438 35 p.

Research output: Research - peer-reviewArticle

ideal fluids
fluid pressure
stratification
inertia
Fluids
4 Citations

Numerical simulations and experimental measurements of dense-core vortex rings in a sharply stratified environment

Camassa, R., Khatri, S., McLaughlin, R., Mertens, K., Nenon, D., Smith, C. & Viotti, C. Apr 1 2013 In : Computational Science and Discovery. 6, 1, 014001

Research output: Research - peer-reviewArticle

Vortex Ring
Numerical Simulation
vortex rings
simulation
Vortex flow
4 Citations

Retention and entrainment effects: Experiments and theory for porous spheres settling in sharply stratified fluids

Camassa, R., Khatri, S., McLaughlin, R. M., Prairie, J. C., White, B. L. & Yu, S. Aug 26 2013 In : Physics of Fluids. 25, 8, 081701

Research output: Research - peer-reviewLetter

settling
entrainment
fluids
Fluids
Experiments
6 Citations

Subsurface Trapping of Oil Plumes in Stratification: Laboratory Investigations

Adalsteinsson, D., Camassa, R., Harenberg, S., Lin, Z., McLaughlin, R. M., Mertens, K., Reis, J., Schlieper, W. & White, B. Mar 21 2013 Monitoring and Modeling the Deepwater Horizon Oil Spill: A Record Breaking Enterprise. wiley, p. 257-262 6 p.

Research output: ResearchChapter

stratification
plumes
oils
trapping
surfactants
1 Citations

Transient dynamics by continuous-spectrum perturbations in stratified shear flows

Camassa, R. & Viotti, C. Feb 25 2013 In : Journal of Fluid Mechanics. 717, p. R5

Research output: Research - peer-reviewArticle

continuous spectra
shear flow
perturbation
Shear flow
direct numerical simulation
2012
2 Citations

A model for large-amplitude internal waves with finite-thickness pycnocline

Camassa, R. & Viotti, C. Dec 2012 In : Acta Applicandae Mathematicae. 122, 1, p. 75-84 10 p.

Research output: Research - peer-reviewArticle

Internal Waves
Model
Fluids
Boussinesq Approximation
Stratification
8 Citations

An inertia 'paradox' for incompressible stratified Euler fluids

Camassa, R., Chen, S., Falqui, G., Ortenzi, G. & Pedroni, M. Mar 25 2012 In : Journal of Fluid Mechanics. 695, p. 330-340 11 p.

Research output: Research - peer-reviewArticle

paradoxes
inertia
fluids
Euler equations
Conservation
5 Citations

On the response of large-amplitude internal waves to upstream disturbances

Camassa, R. & Viotti, C. Jul 10 2012 In : Journal of Fluid Mechanics. 702, p. 59-88 30 p.

Research output: Research - peer-reviewArticle

internal waves
upstream
disturbances
shear
perturbation
7 Citations

Ring waves as a mass transport mechanism in air-driven core-annular flows

Camassa, R., Forest, M. G., Lee, L., Ogrosky, H. R. & Olander, J. Dec 11 2012 In : Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 86, 6, 066305

Research output: Research - peer-reviewArticle

annular flow
rings
air
Mass Transport
Ring
6 Citations

Shear instability of internal solitary waves in Euler fluids with thin pycnoclines

Almgren, A., Camassa, R. & Tiron, R. Nov 2012 In : Journal of Fluid Mechanics. 710, p. 324-361 38 p.

Research output: Research - peer-reviewArticle

solitary waves
shear
fluids
Solitons
Fluids
1 Citations
stratified flow
configurations
Fluids
fluids
Experiments
2011
3 Citations

A particle method and numerical study of a quasilinear partial differential equation

Camassa, R., Chiu, P. H., Lee, L. & Sheu, T. W. H. Sep 2011 In : Communications on Pure and Applied Analysis. 10, 5, p. 1503-1515 13 p.

Research output: Research - peer-reviewArticle

Particle Method
Numerical Study
Partial differential equation
Partial differential equations
Momentum

Lagrangian blocking in highly viscous shear flows past a sphere

Camassa, R., McLaughlin, R. M. & Zhao, L. Feb 25 2011 In : Journal of Fluid Mechanics. 669, p. 120-166 47 p.

Research output: Research - peer-reviewArticle

shear flow
Shear flow
spheroids
fluids
Trajectories
13 Citations

Optimal two-layer approximation for continuous density stratification

Camassa, R. & Tiron, R. Feb 25 2011 In : Journal of Fluid Mechanics. 669, p. 32-54 23 p.

Research output: Research - peer-reviewArticle

stratification
approximation
Fluids
fluids
configurations
2010
20 Citations

A first-principle predictive theory for a sphere falling through sharply stratified fluid at low Reynolds number

Camassa, R., Falcon, C., Lin, J., McLaughlin, R. M. & Mykins, N. Dec 10 2010 In : Journal of Fluid Mechanics. 664, p. 436-465 30 p.

Research output: Research - peer-reviewArticle

falling spheres
low Reynolds number
fluids
Reynolds number
Fluids
3 Citations
Advection
Shear flow
Sorting
classifying
advection
6 Citations

Fully nonlinear periodic internal waves in a two-fluid system of finite depth

Camassa, R., Rusås, P. O., Saxena, A. & Tiron, R. Jun 1 2010 In : Journal of Fluid Mechanics. 652, p. 259-298 40 p.

Research output: Research - peer-reviewArticle

internal waves
fluids
Fluids
quadratures
solitary waves
17 Citations

The exact evolution of the scalar variance in pipe and channel flow

Camassa, R., Lin, Z. & Mclaughlin, R. M. Jan 1 2010 In : Communications in Mathematical Sciences. 8, 2, p. 601-626 26 p.

Research output: Research - peer-reviewArticle

Pipe Flow
Channel Flow
Anomalous
Time Scales
Scalar
4 Citations

Viscous and inviscid regularizations in a class of evolutionary partial differential equations

Camassa, R., Chiu, P. H., Lee, L. & Sheu, T. W. H. Sep 1 2010 In : Journal of Computational Physics. 229, 19, p. 6676-6687 12 p.

Research output: Research - peer-reviewArticle

Partial differential equations
partial differential equations
Burger equation
Hamiltonians
Helmholtz equation
2 Citations

Vortex induced oscillations of cylinders at low and intermediate reynolds numbers

Camassa, R., Chung, B. J., Howard, P., McLaughlin, R. & Vaidya, A. 2010 Advances in Mathematical Fluid Mechanics - Dedicated to Giovanni Paolo Galdi on the Occasion of His 60th Birthday. p. 135-145 11 p.

Research output: ResearchConference contribution

Incompressible flow
Vortex shedding
Flow visualization
Bubbles (in fluids)
Phase diagrams
5 Citations

Vortex induced oscillations of cylinders at low and intermediate reynolds numbers

Camassa, R., Chung, B. J., Howard, P., McLaughlin, R. & Vaidya, A. 2010 Advances in Mathematical Fluid Mechanics: Dedicated to Giovanni Paolo Galdi on the Occasion of his 60th Birthday. Springer Berlin Heidelberg, p. 135-145 11 p.

Research output: ResearchChapter

Reynolds number
Vortex
Oscillation
Flow Visualization
Vortex Shedding
2009
22 Citations

Prolonged residence times for particles settling through stratified miscible fluids in the Stokes regime

Camassa, R., Falcon, C., Lin, J., McLaughlin, R. M. & Parker, R. Apr 16 2009 In : Physics of Fluids. 21, 3, 031702

Research output: Research - peer-reviewArticle

settling
fluids
Fluids
flight time
low Reynolds number
2008
7 Citations

Brachistochrones in potential flow and the connection to Darwin's theorem

Camassa, R., McLaughlin, R. M., Moore, M. N. J. & Vaidya, A. Nov 10 2008 In : Physics Letters, Section A: General, Atomic and Solid State Physics. 372, 45, p. 6742-6749 8 p.

Research output: Research - peer-reviewArticle

potential flow
theorems
fluids
falling spheres
asymptotic properties
8 Citations
water waves
shallow water
wave equations
Water waves
Wave equations
1 Citations
Invariant Measure
Probability Measure
Model
breathing
tracers
5 Citations

Trajectory and flow properties for a rod spinning in a viscous fluid. Part 1. An exact solution

Camassa, R., Leiterman, T. J. & McLaughlin, R. M. 2008 In : Journal of Fluid Mechanics. 612, p. 153-200 48 p.

Research output: Research - peer-reviewArticle

viscous fluids
metal spinning
rods
trajectories
Cones
2007

An explicit family of probability measures for passive scalar diffusion in a random flow

Bronski, J. C., Camassa, R., Lin, Z., McLaughlin, R. M. & Scotti, A. Aug 1 2007 In : Journal of Statistical Physics. 128, 4, p. 927-968 42 p.

Research output: Research - peer-reviewArticle

Passive Scalar
Probability density function
Probability Measure
Family
probability density functions
6 Citations

Dynamics of probability density functions for decaying passive scalars in periodic velocity fields

Camassa, R., Martinsen-Burrell, N. & McLaughlin, R. M. Nov 1 2007 In : Physics of Fluids. 19, 11, 117104

Research output: Research - peer-reviewArticle

probability density functions
velocity distribution
scalars
Probability density function
Peclet number
12 Citations

Epicyclic orbits in a viscous fluid about a precessing rod: Theory and experiments at the micro- and macro-scales

Bouzarth, E. L., Brooks, A., Camassa, R., Jing, H., Leiterman, T. J., McLaughlin, R. M., Superfine, R., Toledo, J. & Vicci, L. Jul 25 2007 In : Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 76, 1, 016313

Research output: Research - peer-reviewArticle

Viscous Fluid
Orbit
Motion
Experiment
viscous fluids
2006
26 Citations

Integral and integrable algorithms for a nonlinear shallow-water wave equation

Camassa, R., Huang, J. & Lee, L. Aug 10 2006 In : Journal of Computational Physics. 216, 2, p. 547-572 26 p.

Research output: Research - peer-reviewArticle

Water waves
Wave equations
water waves
shallow water
wave equations
60 Citations

On the realm of validity of strongly nonlinear asymptotic approximations for internal waves

Camassa, R., Choi, W., Michallet, H., Rusås, P. O. & Sveen, J. K. Feb 1 2006 In : Journal of Fluid Mechanics. 549, p. 1-23 23 p.

Research output: Research - peer-reviewArticle

internal waves
fluids
approximation
Fluids
wavelengths
1 Citations

Transmission, reflection, and second-harmonic generation in a nonlinear waveguide

Camassa, R., Findikoglu, A. & Lythe, G. 2006 In : SIAM Journal on Applied Mathematics. 66, 1, p. 1-28 28 p.

Research output: Research - peer-reviewArticle

Second Harmonic Generation
Waveguide
Harmonic generation
Waveguides
Electric potential
2005
30 Citations

On a completely integrable numerical scheme for a nonlinear shallow-water wave equation

Camassa, R., Huang, J. & Lee, L. Jan 1 2005 In : Journal of Nonlinear Mathematical Physics. 12, SUPPL. 1, p. 146-162 17 p.

Research output: Research - peer-reviewArticle

Shallow Water Waves
Shallow Water Equations
Numerical Scheme
Wave equation
water waves

Thin film dynamics in a liquid lined circular pipe

Camassa, R. & Lee, L. Jan 1 2005 Advances in Engineering Mechanics Reflections and Outlooks: In Honor of Theodore Y-T Wu. World Scientific Publishing Co., p. 222-238 17 p.

Research output: ResearchChapter

Pipe
Thin films
Liquids
Flow of gases
Experiments
2004
4 Citations

Traveling waves in rotating Rayleigh-Bénard convection

Choi, W., Prasad, D., Camassa, R. & Ecke, R. E. May 1 2004 In : Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 69, 5 1, 056301

Research output: Research - peer-reviewArticle

Rayleigh-Bénard Convection
Slip Boundary Condition
Traveling Wave
Slip
Rotating
2003
39 Citations
Integrable Equation
Shallow Water Equations
Initial Value Problem
Wave equation
Projection
2002
12 Citations

Dielectric nonlinearity and stochastic effects in strontium titanate

Findikoǧlu, A. T., Camassa, R., Lythe, G. & Jia, Q. X. May 6 2002 In : Applied Physics Letters. 80, 18, p. 3391-3393 3 p.

Research output: Research - peer-reviewArticle

microwave frequencies
strontium
wave equations
dielectric properties
nonlinearity
2001
17 Citations
water waves
shallow water
boundary value problems
wave equations
planetary waves
67 Citations

The complex geometry of weak piecewise smooth solutions of integrable nonlinear PDE's of shallow water and Dym type

Alber, M. S., Camassa, R., Fedorov, Y. N., Holm, D. D. & Marsden, J. E. Jul 2001 In : Communications in Mathematical Physics. 221, 1, p. 197-227 31 p.

Research output: Research - peer-reviewArticle

Nonlinear PDE
Shallow Water
Complex Geometry
Smooth Solution
Weak Solution