PUBLICATIONS

2014

Turbidity currents interacting with three-dimensional seafloor topography, with M. M. Nasr-Azadani, J. Fluid Mech., 745, 409 (2014). PDF

2013

Influence of seafloor topography on the depositional behavior of bi-disperse turbidity currents: A three-dimensional, depth-resolved numerical investigation, with M. M. Nasr-Azadani, accepted for publication in J. Env. Fluid Mech (2013). PDF

Circulation based models for Boussinesq gravity currents, with Z. Borden, Phys. Fluids 25, 101301 (2013). PDF

Polydisperse Turbidity Currents Propagating over Complex Topography: Comparison of Experimental and Depth-Resolved Simulation Results, with M.M. Nasr-Azadani and B. Hall, Comp. & Geosc. 53, 141 (2013). PDF

Circulation-based models for Boussinesq internal bores, with Z. Borden, J. Fluid Mech., 726, R1 (2013). PDF

2012

Sediment-laden Fresh Water above Salt Water: Linear Stability analysis, with P. Burns, J. Fluid Mech. 691, 279 (2012). PDF

Internal Bores: An Improved Model via a Detailed Analysis of the Energy Budget, with Z. Borden and G. Constantinescu, J. Fluid Mech. 703, 279 (2012). PDF


2011

Viscously Unstable, Variable Density, Miscible Displacements in Horizontal Hele-Shaw Cells: Three-dimensional Navier-Stokes Simulations, with M. John, R. Oliveira and F. Heussler, submitted to J. Fluid Mech.

Tail Structure and Sediment Entrainment Capacity of Gravity Currents Propagating over an Array of Obstacles, with T. Tokyay and G. Constantinescu, submitted to J. Fluid Mech.

Miscible Displacements in Hele-Shaw Cells: Three-dimensional Navier-Stokes Simulations, with R. Oliveira, J. Fluid Mech. 687, 431 (2011). PDF

Plane Poiseuille Flow of Miscible Layers with Different Viscosities: Instabilities in the Stokes Flow Regime, with L. Talon, J. Fluid Mech. 686, 484 (2011). PDF

Deep Water Sediment Wave Formation: Linear Stability Analysis of Coupled Flow/Bed Interaction, with L. Lesshafft, B. Hall and B. Kneller, in J. Fluid Mech. 680, 435, (2011). PDF

Gravity currents propagating over periodic arrays of blunt obstacles: Effect of the obstacle size, with T. Tokyay, G. Constantinescu and E. Gonzalez-Juez, in J. Fluids Struct., 27, 798, (2011). PDF

Towards Inverse Modeling of Turbidity Currents: The Inverse Lock-Exchange Problem, with L. Lesshafft, B. Kneller and A. Marsden, in Comp. & Geosc. 37, 521 (2011). PDF

Lock-exchange Gravity Currents with a High Volume of Release Propagating over a Periodic Array of Obstacles, with T. Tokyay and G. Constantinescu, J. Fluid Mech. 672, 570 (2011). PDF

TURBINS: An Immersed Boundary, Navier-Stokes Code for the Simulation of Gravity and Turbidity Currents Interacting with Complex Topographies, with M.M. Nasr-Azadani, Comp. & Fluids 45, 14 (2011). PDF

2010

Direct Numerical Simulations of Particle Transport in a Model Estuary, with R. Henniger and L. Kleiser, J. Turbulence 11, N39 (2010). PDF

Gravity Current Flow past a Circular Cylinder: Forces, Wall Shear Stresses and Implications for Scour, E. Gonzalez-Juez, T. Tokyay and G. Constantinescu, J. Fluid Mech. 649, 69 (2010). PDF

Turbidity Currents and Their Deposits, with B. Kneller, Ann. Rev. Fluid Mech. 42, 135 (2010). PDF

2009

Shallow Water Analysis of Gravity Current Flows past Isolated Obstacles, with E. Gonzalez-Juez, J. Fluid Mech. 635, 415 (2009). PDF

Intrusive Gravity Currents from Finite-Length Locks in a Uniformly Stratified Fluid, with J. Munroe, C. Voegeli, B. Sutherland and V. Birman, J. Fluid Mech. 635, 245 (2009). PDF

Gravity Currents Impinging on Bottom-Mounted Square Cylinders: Flow Fields and Associated Forces, with E. Gonzalez-Juez and G. Constantinescu, J. Fluid Mech. 631, 65 (2009). PDF

The Interaction of a Gravity Current with a Circular Cylinder Mounted Above a Wall: Effect of the Gap Size, with E. Gonzalez-Juez and G. Constantinescu, J. Fluids Struct. 25, 629 (2009). PDF

The Shape of Submarine Levees: Exponential or Power Law?, with V. Birman and B. Kneller, J. Fluid Mech. 619, 367 (2009). PDF

Convective/Absolute Instability in Miscible Core-Annular Flow. Part 2: Numerical Simulations and Nonlinear Global Modes, with B. Selvam, L. Talon and L. Lesshafft, J. Fluid Mech. 618, 323 (2009). PDF

2008

Channel Formation by Turbidity Currents: Navier-Stokes Based Linear Stability Analysis, with B. Hall and B. Kneller, J. Fluid Mech. 615, 185 (2008). PDF

Miscible Porous Media Displacements Driven by Non-vertical Injection Wells, with E. Upchurch, J. Fluid Mech. 607, 289 (2008). PDF

Variable Density and Viscosity, Miscible Displacements in Capillary Tubes, with S.H. Vanaparthy, Eur. J. Mech. B/Fluids 27, 268 (2008). PDF

2007

Stability of Miscible Core-Annular Flows with Viscosity Stratification, with B. Selvam, S. Merk and R. Govindarajan, J. Fluid Mech. 592, 23 (2007). PDF

On Gravity Currrents in Stratified Ambients, with V. Birman and M. Ungarish, Phys. Fluids 19, 086602 (2007). PDF

Buoyancy-Driven Convection Around Chemical Fronts Traveling in Covered Horizontal Solution Layers, with L. Rongy, N. Goyal and A. DeWit, J. Chem. Phys. 127, 114710 (2007). PDF

Variable Density, Miscible Displacements in a Vertical Hele-Shaw Cell: Linear Stability, with N. Goyal and H. Pichler, J. Fluid Mech. 584, 357 (2007). PDF

Miscible Displacements in Hele-Shaw Cells: Nonmonotonic Viscosity Profiles, with D. Schafroth and N. Goyal, Eur. J. Mech. B/Fluids 26, 444 (2007). PDF

Lock-Exchange Flows in Sloping Channels, with V. Birman, V.A. Battandier and P.F. Linden, J. Fluid Mech. 577, 53 (2007). PDF

2006

Report of the Symposium on Interactions for Dispersed Systems in Newtonian and Viscoelastic Fluids, Guanajuato, Mexico, 2006, with M.M. Denn, J.F. Morris, E.S.G. Shaqfeh and T.M. Squires, Phys. Fluids 18, 121501 (2006). PDF

Miscible Displacements in a Hele-Shaw Cell: Two-Dimensional Base States and Their Linear Stability, with N. Goyal, J. Fluid Mech. 558, 329 (2006). PDF

Density-Driven Instabilities in Capillary Tubes: Influence of a Variable Diffusion Coefficient, with S.H. Vanaparthy and C. Barthe, Phys. Fluids 18, 048101 (2006). PDF

High-Resolution Simulations of Gravity Currents, with V. Birman, J. Brazil. Soc. Mech. Sci. Eng. XXVIII, No. 2 (2006).

Spiral Vortex Breakdown as a Global Mode, with F. Gallaire, M. Ruith, J.-M. Chomaz and P. Huerre, J. Fluid Mech 549, 71 (2006). Gallaire_et_al_2006 PDF

Small Particles in Homogeneous Turbulence: Settling Velocity Enhancement by Two-Way Coupling, with T. Bosse and L. Kleiser, Phys. Fluids 18, 027102 (2006). PDF

Evaluation of a Simplified Approach for Simulating Gravity Currents over Slopes of Varying Angles, with F. Blanchette, V. Piche and M. Strauss, Comp. Fluids 35, 492 (2006). PDF

2005

High-Resolution Numerical Simulations of Resuspending Gravity Currents: Conditions for Self-Sustainment, with F. Blanchette, M. Strauss, B. Kneller and M. Glinsky, J. Geophys. Res. C: Oceans 110, C12 (2005). PDF

Settling and Break-Up of Suspension Drops , with T. Bosse, L. Kleiser and J. Favre (Gallery of Fluid Motion Winning Entry), Phys. Fluids 17, 091107 (2005). PDF

Mixing and Dissipation in Particle-Driven Gravity Currents, with F. Necker, C. Haertel and L. Kleiser, J. Fluid Mech. 545, 339 (2005). PDF

The Non-Boussinesq Lock-Exchange Problem, with V. Birman and J.E. Martin, J. Fluid Mech. 537, 125 (2005). PDF

Steady Axisymmetric Flow in a Circular Container with a Partially Rotating Bottom Wall, with M. Piva, Phys. Fluids 17, 063603 (2005). PDF

Numerical Simulation of Finite Reynolds Number Suspension Drops Settling Under Gravity, with T. Bosse, C. Haertel and L. Kleiser, Phys. Fluids 17, 037101 (2005). PDF

Influence of Variable Viscosity on Density-Driven Instabilities in Capillary Tubes, with M. Payr and S.H. Vanaparthy, J. Fluid Mech. 525, 333 (2005). PDF

2004

Density-Driven Instabilities of Variable Viscosity Miscible Fluids in a Capillary Tube, with S.H. Vanaparthy, M. Payr and D. Wilhelm, Ann. New York Acad. Sci. 1027, 383 (2004) Also: Proc. of the Microgravity Transport Processes in Fluid, Thermal, Materials, and Biological Sciences Conference III, Davos, Switzerland, September 2003. PDF

Miscible Porous Media Displacements with Density Stratification, with A. Riaz, Ann. New York Acad. Sci. 1027, 342 (2004). Also: Proc. of the Microgravity Transport Processes in Fluid, Thermal, Materials, and Biological Sciences Conference III, Davos, Switzerland, September 2003. PDF

Vorticity Interaction Mechanisms in Variable Viscosity, Heterogeneous Miscible Displacements with and without Density Contrast, with A. Riaz, J. Fluid Mech. 517, 1 (2004). PDF

Linear Stability of Radial Displacements in Porous Media: Influence of Velocity-Induced Dispersion and Concentration-Dependent Diffusion, with A. Riaz and C. Pankiewitz, Phys. Fluids 16, 3592 (2004). PDF

Unstable Density Stratification of Miscible Fluids in a Vertical Hele-Shaw Cell: Influence of Variable Viscosity on the Linear Stability, with N. Goyal, J. Fluid Mech. 516, 211 (2004). PDF

Miscible Displacements in Capillary Tubes: Effect of a Preexisting Wall Film, with C.-Y. Chen, Phys. Fluids 16, 602 (2004). PDF

Development of Boundary Conditions for Direct Numerical Simulations of Three-Dimensional Vortex Breakdown Phenomena in Semi-Infinite Domains, with M. Ruith and P. Chen, Comp. Fluids 33, 1225 (2004). PDF

Three-Dimensional Spectral Element Simulations of Variable Density and Viscosity, Miscible Displacements in a Capillary Tube, with D. Wilhelm, Comp. Fluids 33, 485 (2004). PDF

2003

Texture Evolution of Sheared LCPs: Numerical Predictions of Roll-Cells Instability, Director Turbulence and Striped Texture with a Molecular Model, with G. Sgalari and L.G. Leal, J. Rheology 47, 1417 (2003). PDF

Density-Driven Instabilities of Miscible Fluids in a Capillary Tube: Linear Stability Analysis, with S. H. Vanaparthy and D. Wilhelm, J. Fluid Mech. 497, 99 (2003). PDF

Three-Dimensional Miscible Displacement Simulations in Homogeneous Porous Media with Gravity Override, with A. Riaz, J. Fluid Mech. 494, 95 (2003). PDF

Three-dimensional Vortex Breakdown in Swirling Jets and Wakes, with M. Ruith, P. Chen and T. Maxworthy, J. Fluid Mech. 486, 331 (2003). PDF

Radial Source Flows in Porous Media: Linear Stability Analysis of Axial and Helical Perturbations in Miscible Displacements, with A. Riaz, Phys. Fluds 15, 938 (2003). PDF

Chemical Fronts in Hele-Shaw Cells: Linear Stability Analysis Based on the Three-Dimensional Stokes Equations, with R. Demuth, Phys. Fluids 15, 597 (2003). PDF

2002

Three-Dimensional Vorticity Dynamics of Miscible Porous Media Flows, with A. Riaz, J. of Turb. 3, 061 (2002). PDF

Direct Numerical Simulation of Spatially Developing, Three-Dimensional Swirling Jets, with M. Ruith, J. of Turb. 3, 065 (2002). PDF

The Interactive Dynamics of Flow and Directional Solidification in a Hele-Shaw Cell. Part 2. Stability Analysis and Nonlinear Simulations, with S. Buddhavarapu, J. Fluid Mech. 470, 269 (2002). PDF

Breakdown Modes of Swirling Jets with Coflow , with M.R. Ruith (Gallery of Fluid Motion Winning Entry), Phys. Fluids. 14, S11. For movie, see: http://ojps.aip.org/phf/gallery/2002toc.jsp (2002).

Miscible Displacements in Capillary Tubes: Influence of Korteweg Stresses and Divergence Effects, with C.-Y. Chen, Phys. Fluids. 14, 2052 (2002). PDF

A Review of the Book `Vortex Methods - Theory and Practice', by G.-H. Cottet and P. Koumoutsakos, SIAM Rev. 44, 502 (2002).

Heterogeneous Flow through Low Headloss Biofilter Media, with D. Chitwood and J.S. Devinny, J. Env. Prog. 21, 11 (2002).

The Propagation of a Gravity Current in a Linearly Stratified Fluid, with T. Maxworthy, J. Leilich, and J. Simpson, J. Fluid Mech. 453, 371 (2002). PDF

Vortex Pairing in Two-Way Coupled, Particle Laden Mixing Layers, with E. Wallner, Int. J. of Multiphase Flow 28, 325 (2002). PDF

High-Resolution Simulations of Particle-Driven Gravity Currents, with F. Necker, C. Haertel and L. Kleiser, Int. J. of Multiphase Flow 28, 279 (2002). PDF

Density-Driven Instabilities of Miscible Fluids in a Hele-Shaw Cell: Linear Stability Analysis of the Three-Dimensional Stokes Equations, with F. Graf and C. Haertel, J. Fluid Mech. 451, 261 (2002). PDF

Density-Driven Unstable Flows of Miscible Fluids in a Hele-Shaw Cell, with J. Fernandez, P. Kurowski, and P. Petitjeans, J. Fluid Mech. 451, 239 (2002). PDF

2001

Miscible Droplets in a Porous Medium and the Effects of Korteweg Stresses, with C.-Y. Chen and L.-L. Wang, Phys. Fluids 13, 2447 (2001). PDF

The Dynamics of Miscible Interfaces and the Effects of Korteweg Stresses, with C.-Y. Chen and L.-L. Wang, Trans. Aero. Astro. Soc. R. O. C. 33, 7 (2001).

2000

Vorticity Dynamics in Dilute, Two-Way Coupled Particle Laden Mixing Layers, with E. Wallner, A. Pagella, A. Riaz, C. Haertel and F. Necker, J. Fluid Mech. 421, 185 (2000). PDF

Miscible Rectilinear Displacements with Gravity Override. Part 2: Heterogeneous Porous Media, with E. Camhi and M. Ruith, J. Fluid Mech. 420, 259 (2000). PDF

Miscible Rectilinear Displacements with Gravity Override. Part 1: Homogeneous Porous Medium, with M. Ruith, J. Fluid Mech. 420, 225 (2000). PDF

Analysis and Direct Numerical Simulation of the Flow at a Gravity Current Head. Part 1: Flow Topology and Front Speed for Slip and No-slip Boundaries,with C. Haertel and F. Necker, J. Fluid Mech. 418, 189 (2000). PDF

High-Accuracy Implicit Finite Difference Simulations of Homogeneous and Heterogeneous Miscible Porous Media Flows, with C.-Y. Chen, SPE J. 5, 129 (2000).

1999

Vorticity Dynamics during the Start-up Phase of Gravity Currents, with C. Haertel and F. Necker, Il Nuovo Cimento C 22, 823 (1999). PDF

Miscible Quarter Five-Spot Displacements in a Hele-Shaw Cell and the Role of Flow-Induced Dispersion, with P. Petitjeans, C.-Y. Chen, and T. Maxworthy, Phys. Fluids 11, 1705 (1999). PDF

Miscible Porous Media Displacements in the Quarter Five-Spot Configuration. Part 3: Nonmonotonic Viscosity Profiles, with C. Pankiewitz, J. Fluid Mech. 388, 171 (1999). PDF

1998

Miscible Porous Media Displacements in the Quarter Five-Spot Configuration. Part 2: Effect of Heterogeneities, with C.-Y. Chen, J. Fluid Mech 371, 269 (1998). PDF

Miscible Porous Media Displacements in the Quarter Five-Spot Configuration. Part 1: The Homogeneous Case, with C.-Y. Chen, J. Fluid Mech 371, 233 (1998). PDF

The Growth and Nonlinear Evolution of Helical Perturbations in a Swirling Jet Model, with J.E. Martin, European Journal of Mechanics B/Fluids 17, 639 (1998). PDF

1997

Lagrange Identification of Absolutely Unstable Regimes in Wakes, with J. Delfs, J. Ehrhard, and H. Oertel jr., Acta Mechanica 122, p. 89 (1997).

Dynamics of Small, Spherical Particles in Vortical and Stagnation Point Flow Fields, with N. Raju, Phys. Fluids. 9, p. 299 (1997). PDF

Numerical Simulation of Local Disturbances in Absolutely/Convectively Unstable Flow by a Vortex Method, with J. Ehrhard, J Delfs, and H. Oertel jr., Zeitschrift fuer Angewandte Mathematik und Mechanik 77, p. S85 (1997).

1996

Three-Dimensional Features of Particle Dispersion in a Nominally Plane Mixing Layer, with B. Marcu, Phys. Fluids 8, p. 2266 (1996). PDF

Miscible Displacements in Capillary Tubes. Part 2: Numerical Simulations, with C.-Y. Chen, J. Fluid Mech. 326, p. 57 (1996).

Nonlinear Axisymmetric and Three-dimensional Vorticity Dynamics in a Swirling Jet Model, with J.E. Martin, Phys. Fluids 8, p. 1917 (1996). PDF

The Effect of Streamwise Braid Vortices on the Particle Dispersion in a Plane Mixing Layer. Part 2: Nonlinear Particle Dynamics, with B. Marcu and N. Raju, Phys. Fluids 8, p. 734 (1996). PDF

The Effect of Streamwise Braid Vortices on the Particle Dispersion in a Plane Mixing Layer. Part 1: Equilibrium Points and Their Stability, with B. Marcu, Phys. Fluids 8, p. 715 (1996). PDF

1995

Unsteady Models for the Nonlinear Evolution of the Mixing Layer, with P.K. Newton, N. Raju, and G. R. Ruetsch, Phys. Rev. E 52, p. 1639 (1995). PDF

The Accumulation and Dispersion of Heavy Particles in Forced Two-Dimensional Mixing Layers. II. The Effect of Gravity, with N. Raju, Phys. Fluids 7, p. 1241 (1995). PDF

Dynamics of Heavy Particles in a Burgers Vortex, with B. Marcu and P.K. Newton, Phys. Fluids 7, p. 400 (1995). PDF

1994

The Nonlinear Evolution of Swirling Jets, with J.E. Martin, Meccanica 29, p. 331 (1994).

Two-Way Coupling in Shear Layers with Dilute Bubble Concentrations, with G.R. Ruetsch, Phys. Fluids 6, p. 2656 (1994). PDF

The Accumulation and Dispersion of Heavy Particles in Forced Two-Dimensional Mixing Layers. Part I: The Fundamental and Subharmonic Cases, with J.E. Martin, Phys. Fluids 6, p. 1116 (1994). PDF

On the Stability of the Swirling Jet Shear Layer, with J.E. Martin, Phys. Fluids 6, p. 424 (1994). PDF

1993

Numerical Simulation of Miscible Displacement Processes in Porous Media Flows under Gravity, with A.M. Rogerson, Phys. Fluids A 5, p. 2644 (1993). PDF

On the Motion of Small Spherical Bubbles in Two-Dimensional Vortical Flows, with G.R. Ruetsch, Phys. Fluids A 5, p. 2326 (1993). PDF

Shear Stabilization of Miscible Displacement Processes in Porous Media, with A.M. Rogerson, Phys. Fluids A 5, p. 1344 (1993). PDF

1992

Numerical Investigation of Three-Dimensionally Evolving Jets under Helical Perturbations, with J.E. Martin, J. Fluid Mech. 243, p. 457 (1992).

1991

Particle Dynamics in a Viscously Decaying Cat's Eye: The Effect of Finite Schmidt Numbers, with P.K. Newton, Phys. Fluids A 3, p. 1068 (1991). PDF

Numerical Investigation of Three-Dimensionally Evolving Jets subject to Axisymmetric and Azimuthal Perturbations, with J.E. Martin, J. Fluid Mech. 230, p. 271 (1991).

Particle Dynamics and Mixing in a Viscously Decaying Shear Layer, with P.K. Newton, J. Fluid Mech. 227, p. 211 (1991).

1990

A Numerical Study of the Convergence Properties of ENO Schemes, with A.M. Rogerson, J. Sci. Comp. 5, p. 151 (1990).

Three-Dimensional Vorticity Modes in the Wake of a Flat Plate, with J.C. Lasheras, Phys. Fluids A 2, p. 371 (1990). PDF

Lagrangian Simulation of Diffusion Flames, Comb. Sci. Tech. 71, p. 1 (1990).

1989

Bubbles in a Hele-Shaw Cell: Numerical Simulation of Three-Dimensional Effects, Phys. Fluids. A 1, p. 938 (1989). PDF

Incorporation and Test of Diffusion and Strain Effects in the Two-Dimensional Vortex Blob Technique, J. Comp. Phys. 82, p. 85 (1989).

1988

Topology of the Vorticity Field in Three-Dimensional Shear Layers and Wakes, with J.C. Lasheras and W.T. Ashurst, Fluid Dyn. Res. 3, p. 140 (1988). Also in: Vortex Motion, ed. H. Hasimoto and T. Kambe, North Holland, Amsterdam, 1988.

Nonlinear Unstable Viscous Fingers in Hele-Shaw Flows. Part II: Numerical Simulation, with G.M. Homsy, Phys. Fluids 31, p. 429 (1988). PDF

Experimental and Numerical Investigation of the Three-Dimensional Transition in Plane Wakes, with J.C. Lasheras, J. Fluid Mech. 190, p. 1 (1988).

Three-Dimensional Shear Layers via Vortex Dynamics, with W.T. Ashurst, J. Fluid Mech. 189, p. 87 (1988).

1987

On the Role of Subharmonic Perturbations in the Far Wake, J. Fluid Mech. 177, p. 83 (1987).

Comparison between Experiments and Numerical Simulations of Three-Dimensional Plane Wakes, with J.C. Lasheras, Phys. Fluids 30, p. 623 (1987). PDF

1986

Comparison of the Molecular Dynamics Method and the Direct Simulation Monte Carlo Technique for Flows around Simple Geometries, Phys. Fluids 29, p. 3107 (1986). PDF

1985

High Marangoni Number Convection in a Square Cavity, with A. Zebib and G.M.Homsy, Phys. Fluids 28, p. 3467 (1985). PDF

1984

The Effects of Surface Contamination on Thermocapillary Flow in a Two-Dimensional Slot, with G.M. Homsy, J. Fluid Mech. 139, p. 443 (1984).