179 citations · 323 across the 15 of their papers we have counts for
14 papers · 1 filter
Modelling friction and heat transfer in turbulent forced convection over porous lattices
Aneek Chakraborty, Stefan Hickel, Davide Modesti
We perform direct numerical simulations (DNS) to investigate how cubic-lattice porous substrates influence momentum and heat transfer in turbulent channel flows. The simulations sp…
Physics-Informed Acoustic Liner Optimization: Balancing Drag and Noise
Haris Shahzad, Stefan Hickel, Davide Modesti
We present pore-resolved Direct Numerical Simulations (DNS) of turbulent flows grazing over acoustic liners with aerodynamically and/or acoustically optimized orifice configuration…
Friction and heat transfer in forced air convection with variable physical properties
Davide Modesti, Sergio Pirozzoli
We establish a theoretical framework for predicting friction and heat transfer coefficients in variable-properties forced air convection. Drawing from concepts in high-speed wall t…
Mean temperature profiles in turbulent internal flows
Sergio Pirozzoli, Davide Modesti
We derive explicit formulas for the mean profiles of temperature (modeled as a passive scalar) in forced turbulent convection, as a function of the Reynolds and Prandtl numbers. Th…
High-speed turbulent flows towards the exascale: STREAmS-2 porting and performance
Srikanth Sathyanarayana, Matteo Bernardini, Davide Modesti +2
Exascale High Performance Computing (HPC) represents a tremendous opportunity to push the boundaries of Computational Fluid Dynamics (CFD), but despite the consolidated trend towar…
Turbulence and added drag over acoustic liners
Haris Shahzad, Stefan Hickel, Davide Modesti
We present pore-resolved direction numerical simulations (DNS) of turbulent flows grazing over perforated plates, that closely resemble the acoustic liners found on aircraft engine…
Direct numerical simulation of forced thermal convection in square ducts up to
Davide Modesti, Sergio Pirozzoli
We carry out direct numerical simulation (DNS) of flow in a turbulent square duct by focusing on heat transfer effects, considering the case of unit Prandtl number. Reynolds number…
Permeability and turbulence over perforated plates
Haris Shahzad, Stefan Hickel, Davide Modesti
We perform direct numerical simulations of turbulent flow at friction Reynolds number grazing over perforates plates with moderate viscous-scaled orifice dia…
Direct numerical simulation of supersonic pipe flow at moderate Reynolds number
Davide Modesti, Sergio Pirozzoli
We study compressible turbulent flow in a circular pipe, at computationally high Reynolds number. Classical related issues are addressed and discussed in light of the DNS data, inc…
Direct numerical simulation of developed compressible flow in square ducts
Davide Modesti, Sergio Pirozzoli, Francesco Grasso
We carry out direct numerical simulation of compressible square duct flow in the range of bulk Mach numbers M_b = 0.2-3, and up to friction Reynolds number Re_τ = 500. The effects…
On the role of secondary motions in turbulent square duct flow
Davide Modesti, Sergio Pirozzoli, Paolo Orlandi +1
We use a direct numerical simulations (DNS) database for turbulent flow in a square duct up to bulk Reynolds number $\Rey_b=40000$, to quantitatively analyze the role of secondary…
Turbulence and secondary motions in square duct flow
S. Pirozzoli, D. Modesti, P. Orlandi +1
We study turbulent flows in pressure-driven ducts with square cross-section through direct numerical simulation in a wide enough range of Reynolds number to reach flow conditions w…
A high-fidelity solver for turbulent compressible flows on unstructured meshes
Davide Modesti, Sergio Pirozzoli
We develop a high-fidelity numerical solver for the compressible Navier-Stokes equations, with the main aim of highlighting the predictive capabilities of low-diffusive numerics fo…
An efficient semi-implicit solver for direct numerical simulation of compressible flows at all speeds
Davide Modesti, Sergio Pirozzoli
We develop a semi-implicit algorithm for time-accurate simulation of the compressible Navier-Stokes equations, with special reference to wall-bounded flows. The method is based on…