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Author: nicos martys

Displaying records 31 to 40 of 75 records.
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31. Study of a Dissipative Particle Dynamics Based Approach for Modeling Suspensions
Published: 4/1/2005
Author: Nicos Martys
Abstract: In this paper, a dissipative particle dynamics (DPD)-based approach for modeling suspensions is examined. A series of tests are applied comparing simulation results to well established theoretical predictions. The model recovers the dilute limit in ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860563

32. Breakup of a Fluid Thread in a Confined Geometry: Droplet-Plug Transition Perturbation Sensitivity and Kinetic Stabilization With Confinement .
Published: 12/1/2004
Authors: J G Hagedorn, Nicos Martys, J F Douglas
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100856

33. La Rheologie des Materiaux Cimentaires. [The Rheology of Cementitious Materials].
Published: 12/1/2004
Authors: Robert J Flatt, Nicos Martys, L Bergstrom
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100863

34. Rheology of Cementitious Materials.
Published: 12/1/2004
Authors: Robert J Flatt, Nicos Martys, L Bergstrom
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100857

35. Simulation of Sheared Suspensions With a Parallel Implementation of QDPD.
Published: 12/1/2004
Authors: J S Sims, Nicos Martys
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100860

36. Virtual Permeametry on Microtomographic Images.
Published: 12/1/2004
Authors: C H Arns, M A Knackstedt, W V Pinczewski, Nicos Martys
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101121

37. Virtual Permeametry on Microtomographic Images
Published: 11/1/2004
Authors: C H Arns, M A Knackstedt, W V Pinczewski, Nicos Martys
Abstract: We show that accurate numerical micropermeametry measurements can be performed on three dimensional digitized images of sedimentary rock. The sample size can be very small making it possible to predict properties from core material not suited for l ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860519

38. Breakup of a Fluid Thread in a Confined Geometry: Droplet-Plug Transition Perturbation Sensitivity and Kinetic Stabilization with Confinement
Published: 5/26/2004
Authors: John G Hagedorn, Nicos Martys, Jack F Douglas
Abstract: The breakup of a fluid thread surrounded by another Newtonian fluid in a coaxial tube in the absence of imposed flow is investigated using the Lattice Boltzmann (LB) model. We observe a confinement-induced transition between spherical droplets to p ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860489

39. Breakup of a Fluid Thread in a Confined Geometry: Droplet-Plug Transition Perturbation Sensitivity and Kinetic Stabilization With Confinement .
Published: 5/1/2004
Authors: John G Hagedorn, Nicos Martys, J. F. Douglas
Abstract: We investigate the influence of geometrical confinement on the breakup of long fluid threads in the absence of imposed flow using a lattice Boltzmann model. Our simulations primarily focus on the case of threads centered coaxially in a tube filled wi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=916806

40. The Rheology of Cementitious Materials: Chemistry, Colloids and Rocks
Published: 5/1/2004
Authors: Robert J Flatt, Nicos Martys
Abstract: Knowledge of colloidal science has proven essential in the development of a new generation of dispersants for concrete. These polymer molecules induce steric repulsion between cement particles, reducing agglomeration and allow high workability to b ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860541



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