57 citations · 311 across the 13 of their papers we have counts for
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Modeling blood flow in networks of viscoelastic vessels with the 1-D augmented fluid-structure interaction system
Francesco Piccioli, Giulia Bertaglia, Alessandro Valiani +1
A noteworthy aspect in blood flow modeling is the definition of the mechanical interaction between the fluid flow and the biological structure that contains it, namely the vessel w…
Uncertainty quantification of viscoelastic parameters in arterial hemodynamics with the a-FSI blood flow model
Giulia Bertaglia, Valerio Caleffi, Lorenzo Pareschi +1
This work aims at identifying and quantifying uncertainties related to elastic and viscoelastic parameters, which characterize the arterial wall behavior, in one-dimensional modeli…
A well-balanced finite difference WENO scheme for shallow water flow model
Gang Li, Valerio Caleffi, Zhengkun Qi
In this paper, we are concerned with the shallow water flow model over non-flat bottom topography by high-order schemes. Most of the numerical schemes in the literature are develop…
Numerical modelling of open channel junctions using the Riemann problem approach
Mohamed Elshobaki, Alessandro Valiani, Valerio Caleffi
The solution of an extended Riemann problem is used to provide the internal boundary conditions at a junction when simulating one-dimensional flow through an open channel network.…
Free surface axially symmetric flows and radial hydraulic jumps
Alessandro Valiani, Valerio Caleffi
Free surface, axially symmetric shallow flow is analysed in both the centrifugal and centripetal directions. Referring to the inviscid steady flow over a flat plate characterised b…
Momentum balance in the shallow water equations on bottom discontinuities
Alessandro Valiani, Valerio Caleffi
This work investigates the topical problem of balancing the shallow water equations over the bottom steps of different heights. The current approaches in the literature are essenti…
Mathematical study of linear morphodynamic acceleration and derivation of the MASSPEED approach
Francesco Carraro, Davide Vanzo, Valerio Caleffi +2
Morphological accelerators, such as the MORFAC (MORphological acceleration FACtor) approach, are widely adopted techniques for the acceleration of the bed evolution, which reduces…
Well balancing of the SWE schemes for moving-water steady flows
Valerio Caleffi, Alessandro Valiani
In this work, the exact reproduction of a moving-water steady flow via the numerical solution of the one-dimensional shallow water equations is studied. A new scheme based on a mod…
Computational hemodynamics in arteries with the one-dimensional augmented fluid-structure interaction system: viscoelastic parameters estimation and comparison with in-vivo data
Giulia Bertaglia, Adrián Navas-Montilla, Alessandro Valiani +3
Mathematical models are widely recognized as a valuable tool for cardiovascular diagnosis and the study of circulatory diseases, especially to obtain data that require otherwise in…
Modeling blood flow in viscoelastic vessels: the 1D augmented fluid-structure interaction system
Giulia Bertaglia, Valerio Caleffi, Alessandro Valiani
Mathematical models and numerical simulations are widely used in the field of hemodynamics, representing a valuable resource to better understand physiological and pathological pro…
Numerical methods for hydraulic transients in visco-elastic pipes
Giulia Bertaglia, Matteo Ioriatti, Alessandro Valiani +2
A wide and critical comparison of the capability of Method of Characteristics, Explicit Path-Conservative Finite Volume Method and Semi-Implicit Staggered Finite Volume Method is p…