Results 11 to 20 of about 177 (64)

Global Well-Posedness for the Thermodynamically Refined Passively Transported Nonlinear Moisture Dynamics with Phase Changes [PDF]

Journal of nonlinear science, 2022
In this work we study the global solvability of moisture dynamics with phase changes for warm clouds. We thereby in comparison to previous studies (Hittmeir et al.
S. Hittmeir, R. Klein, Jinkai Li, E. Titi   +3 more
semanticscholar   +1 more source

Multi-scale dynamics of Kelvin–Helmholtz instabilities. Part 1. Secondary instabilities and the dynamics of tubes and knots

Journal of Fluid Mechanics, 2022
We perform a direct numerical simulation (DNS) of interacting Kelvin–Helmholtz instabilities (KHI) that arise at a stratified shear layer where KH billow cores are misaligned or exhibit varying phases along their axes.
D. Fritts, L. Wang, T. Lund, S. Thorpe
semanticscholar   +1 more source

Multi-scale dynamics of Kelvin–Helmholtz instabilities. Part 2. Energy dissipation rates, evolutions and statistics

Journal of Fluid Mechanics, 2022
Fritts et al. (J. Fluid Mech., vol. xx, 2022, xx) describe a direct numerical simulation of interacting Kelvin–Helmholtz instability (KHI) billows arising due to initial billow cores that exhibit variable phases along their axes. Such KHI exhibit strong ‘
D. Fritts, L. Wang, S. Thorpe, T. Lund
semanticscholar   +1 more source

Association Between Resistance to Cerebrospinal Fluid Flow Near the Foramen Magnum and Cough-Associated Headache in Adult Chiari Malformation Type I.

Journal of Biomechanical Engineering, 2021
BACKGROUND AND PURPOSE Cough-associated headaches (CAH) are thought to be distinctive for Chiari malformation type I (CMI) patients and have been shown to be related to the motion of cerebrospinal fluid (CSF) near the foramen magnum.
Alaaddin Ibrahimy, C. C. Huang, A. Bezuidenhout, P. Allen, R. Bhadelia, F. Loth   +5 more
semanticscholar   +1 more source

Is the Taylor–Proudman theorem exact in unbounded domains? Case study of the three-dimensional stability of a vortex pair in a rapidly rotating fluid

Journal of Fluid Mechanics, 2021
Owing to the Taylor–Proudman theorem, it is generally believed that rotating flows should have two-dimensional dynamics for rapid background rotation.
P. Billant
semanticscholar   +1 more source

Global well-posedness for passively transported nonlinear moisture dynamics with phase changes [PDF]

, 2016
We study a moisture model for warm clouds that has been used by Klein and Majda (2006 Theor. Comput. Fluid Dyn. 20 525–551) as a basis for multiscale asymptotic expansions for deep convective phenomena.
S. Hittmeir, R. Klein, Jinkai Li, E. Titi   +3 more
semanticscholar   +1 more source

Competing Fluid Forces Control Endothelial Sprouting in a 3-D Microfluidic Vessel Bifurcation Model

bioRxiv, 2019
Sprouting angiogenesis, the infiltration and extension of endothelial cells from pre-existing blood vessels, helps orchestrate vascular growth and remodeling.
E. Akbari, Griffin B. Spychalski, Kaushik K Rangharajan, S. Prakash, Jonathan W. Song   +4 more
semanticscholar   +1 more source

Low Rossby limiting dynamics for stably stratified flow with finite Froude number [PDF]

Journal of Fluid Mechanics, 2011
In this paper, we explore the strong rotation limit of the rotating and stratified Boussinesq equations with periodic boundary conditions when the stratification is order 1 ([Rossby number] Ro = ε, [Froude number] Fr = O(1), as ε → 0).
B. Wingate, P. Embid, Miranda C. Holmes-Cerfon, M. Taylor   +3 more
semanticscholar   +1 more source

A New Method for Quantifying Abdominal Aortic Wall Shear Stress Using Phase Contrast Magnetic Resonance Imaging and The Womersley Solution.

Journal of Biomechanical Engineering, 2022
Wall shear stress is an important mediator of cardiovascular pathologies and there is a need for reliable evaluation of this as a potential prognostic indicator.
E. Iffrig, L. Timmins, Retta El Sayed, W. Taylor, J. Oshinski   +4 more
semanticscholar   +1 more source

Cerebrospinal fluid flow impedance is elevated in Type I Chiari malformation.

Journal of Biomechanical Engineering, 2014
Diagnosis of Type I Chiari malformation (CMI) is difficult because the most commonly used diagnostic criterion, cerebellar tonsillar herniation (CTH) greater than 3-5 mm past the foramen magnum, has been found to have little correlation with patient ...
Nicholas Shaffer, B. Martin, B. Rocque, C. Madura, O. Wieben, B. Iskandar, S. Dombrowski, M. Luciano, J. Oshinski, F. Loth   +9 more
semanticscholar   +1 more source