A Geometric Multiscale Model For The Numerical Simulation Of Blood Flow In The Human Left Heart

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Although unsaturated and density-dependent flow affect solute fate in groundwater, they are rarely both included in reactive transport models. Using the operator-splitting method, a new reactive transport model (SUPHRE) was developed by combining a variabl ...

A linear dynamical model for the development of the turbulent energy cascade was introduced in Apolina ' rio et al. (J. Stat. Phys., 186, 15 (2022)). This partial differential equation, randomly stirred by a forcing term which is smooth in space and delta- ...

Introduction: Synthetic vascular grafts have been widely used in clinical practice for aortic replacement surgery. Despite their high rates of surgical success, they remain significantly less compliant than the native aorta, resulting in a phenomenon calle ...

This presentation examines the energetic particle transport induced by saturated kink modes and sawtooth crashes in JET deuterium plasmas. It is known that kink mode-resonant transport and phase-space redistribution from sawtooth crashes can drive strong f ...

We present numerical simulations and experimental results of the self-modulation of a long proton bunch in a plasma with linear density gradients along the beam path. Simulation results agree with the experimental results reported [F. Braunmller, T. Nechae ...

Despite the widespread use of gradient-based algorithms for optimizing high-dimensional non-convex functions, understanding their ability of finding good minima instead of being trapped in spurious ones remains to a large extent an open problem. Here we fo ...

The numerical investigation of the unsteady flow patterns around a Pelton bucket can be helpful to improve the overall turbine efficiency by optimizing the bucket design based on identified loss mechanisms. Since the flow is highly turbulent, modeling the ...

Since its inauguration, in 1993, the horizontal weir crest of the Olympic fountain in Lausanne has suffered from differential settlings leading to a difference in level of more than 30 mm. The settling involves a visible non-uniform discharge distribution ...

Surface scattering is the key limiting factor to thermal transport in dielectric crystals as the length scales are reduced or when temperature is lowered. To explain this phenomenon, it is commonly assumed that the mean free paths of heat carriers are boun ...

This research studies the performance of eddy and non-eddy viscosity subgrid-scale (SGS) models using direct numerical simulations (DNS) of stratified turbulence. Nonlinear and modulated gradient models, as the two common non-eddy viscosity SGS parameteriz ...

In this paper, we analyze the electric field at ground level during the first stage of triggered lightning experiments, i.e., during the rocket ascent and prior to the lightning initiation. At distances of some tens of meters from the triggering wire, the ...

The thesis focuses on the study of the performance of TBMs in highly jointed and faulted rocks. Despite the great production rates recorded in favourable ground conditions, the TBM advance can be significantly slowed down in limiting geological situations ...

Shear velocity u(*) is an important parameter in geophysical flows, in particular with respect to sediment transport dynamics. In this study, we investigate the feasibility of applying five standard methods [the logarithmic mean velocity profile, the Reyno ...

In a region D in R-2 or R-3, the classical Euler equation for the regular motion of an inviscid and incompressible fluid of constant density is given by partial derivative(t)v + (v . del(x))v = -del(xP), div(x)v = 0, where v(t, x) is the velocity of the pa ...

A Geometric Multiscale Model For The Numerical Simulation Of Blood Flow In The Human Left Heart

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SUPHRE: A Reactive Transport Model With Unsaturated and Density-Dependent Flow

Space-time statistics of a linear dynamical energy cascade model dagger

Design and computational optimization of compliance-matching aortic grafts

Numerical studies on saturated kink and sawtooth induced fast ion transport in JET ITER-like plasmas

Simulation and experimental study of proton bunch self-modulation in plasma with linear density gradients

Complex Dynamics in Simple Neural Networks: Understanding Gradient Flow in Phase Retrieval

GPU-accelerated Pelton turbine simulation using finite volume particle method coupled with linear eddy viscosity models

Reestablishment of a uniform discharge on the Olympic fountain in Lausanne

Boltzmann Transport in Nanostructures as a Friction Effect

Evaluation of non-eddy viscosity subgrid-scale models in stratified turbulence using direct numerical simulations

A model for the evaluation of the electric field associated with the lightning-triggering rocket wire and its corona

Analysis of TBM tunnelling performance in faulted and highly fractured rocks

Shear velocity estimates in rough-bed open-channel flow

Generalized Flows Satisfying Spatial Boundary Conditions