125 citations · 441 across the 13 of their papers we have counts for
10 papers · 1 filter
FSEI-GPU: GPU accelerated simulations of the fluid-structure-electrophysiology interaction in the left heart
Francesco Viola, Vamsi Spandan, Valentina Meschini +4
The reliability of cardiovascular computational models depends on the accurate solution of the hemodynamics, the realistic characterization of the hyperelastic and electric propert…
Non-universal transport mechanisms in vertical natural convection with dispersed light droplets
Chong Shen Ng, Vamsi Spandan, Roberto Verzicco +1
We present results on the effect of dispersed droplets in vertical natural convection (VC) using direct numerical simulations based on a two-way fully coupled Euler-Lagrange approa…
Physical mechanisms governing drag reduction in turbulent Taylor-Couette flow with finite-size deformable bubbles
Vamsi Spandan, Roberto Verzicco, Detlef Lohse
The phenomenon of drag reduction induced by injection of bubbles into a turbulent carrier fluid has been known for a long time; the governing control parameters and underlying phys…
Fluctuation-induced forces in homogeneous isotropic turbulence
Vamsi Spandan, Daniel Putt, Rodolfo Ostilla-Mónico +1
Understanding force generation in non-equilibrium systems is a significant challenge in statistical physics. We uncover a surprising fluctuation-induced force between two plates im…
Deformable ellipsoidal bubbles in Taylor-Couette flow with enhanced Euler-Lagrange tracking
Vamsi Spandan, Roberto Verzicco, Detlef Lohse
In this work we present numerical simulations of sub-Kolmogorov deformable bubbles dispersed in Taylor-Couette flow (a wall-bounded shear system) with rotating inner cylinde…
AFiD-GPU: a versatile Navier-Stokes Solver for Wall-Bounded Turbulent Flows on GPU Clusters
Xiaojue Zhu, Everett Phillips, Vamsi Spandan +9
The AFiD code, an open source solver for the incompressible Navier-Stokes equations ({\color{blue}\burl{http://www.afid.eu}}), has been ported to GPU clusters to tackle large-scale…
Life stages of wall-bounded decay of Taylor-Couette turbulence
Rodolfo Ostilla-Mónico, Xiaojue Zhu, Vamsi Spandan +2
The decay of Taylor-Couette turbulence, i.e~the flow between two coaxial and independently rotating cylinders, is numerically studied by instantaneously stopping the forcing from a…
A parallel interaction potential approach coupled with the immersed boundary method for fully resolved simulations of deformable interfaces and membranes
Vamsi Spandan, Valentina Meschini, Rodolfo Ostilla-Monico +4
In this paper we show and discuss the use of a versatile interaction potential approach coupled with an immersed boundary method to simulate a variety of flows involving deformable…
Deformation and orientation statistics of neutrally buoyant sub-Kolmogorov ellipsoidal droplets in turbulent Taylor-Couette flow
Vamsi Spandan, Roberto Verzicco, Detlef Lohse
The influence of the underlying flow topology on the shape and size of sub-Kolmogorov droplets dispersed in a turbulent flow is of considerable interest in many industrial and scie…
Drag reduction in numerical two-phase Taylor-Couette turbulence using an Euler-Lagrange approach
Vamsi Spandan, Rodolfo Ostilla-Monico, Roberto Verzicco +1
Two-phase turbulent Taylor-Couette (TC) flow is simulated using an Euler-Lagrange approach to study the effects of a secondary phase dispersed into a turbulent carrier phase (here…