32 records found

1

## Authored

## STREAmS-2.0

### Supersonic turbulent accelerated Navier-Stokes solver version 2.0

We present STREAmS-2.0, an updated version of the flow solver STREAmS, first introduced in Bernardini et al. (2021) [1]. STREAmS-2.0 has an object-oriented design which separates the physics equations from the specific back-end, making the code more suitable for future expansi ...

Microvortex generators are passive control devices smaller than the boundary layer thickness that energise the boundary layer to prevent flow separation with limited induced drag. In this work, we use direct numerical simulations (DNS) to investigate the effect of the Reynolds ...

We carry out direct numerical simulations (DNS) of turbulent flow and heat transfer in pressure-driven plane channels, by considering cases with heating on both walls, as well as asymmetric heating limited to one of the channel walls. Friction Reynolds numbers up to are consid ...

We perform direct numerical simulations of turbulent flow at friction Reynolds number Re_{τ}≈ 500 - 2000 grazing over perforates plates with moderate viscous-scaled orifice diameter d^{+}≈ 40 - 160 and analyse the relation between permeability and added drag. U
...

We carry out direct numerical simulations (DNS) of flow in a turbulent square duct by focusing on heat transfer effects, considering the case of unit Prandtl number. Reynolds numbers up to are considered that are much higher than in previous studies, and that yield clear scale ...

We perform direct numerical simulation of supersonic turbulent channel flow over cubical roughness elements, spanning bulk Mach numbers -, both in the transitional and fully rough regime. We propose a novel definition of roughness Reynolds number which is able to account for t ...

## STREAmS

### A high-fidelity accelerated solver for direct numerical simulation of compressible turbulent flows

We present STREAmS, an in-house high-fidelity solver for direct numerical simulations (DNS) of canonical compressible wall-bounded flows, namely turbulent plane channel, zero-pressure gradient turbulent boundary layer and supersonic oblique shock-wave/boundary layer interactio ...

We carry out a priori tests of linear and nonlinear eddy viscosity models using direct numerical simulation (DNS) data of square duct flow up to friction Reynolds number Re _{τ}= 1055. We focus on the ability of eddy viscosity models to reproduce the anisotropic Reynol
...

## Contributed

## Modelling and Design Guidelines for Ram Air Ducts Using the Meredith Effect

### Applied to an Organic Rankine Cycle Waste Heat Recovery System

## Modelling and Design Guidelines for Ram Air Ducts Using the Meredith Effect

### Applied to an Organic Rankine Cycle Waste Heat Recovery System

In this ...

## Wall-normal pores for turbulent drag reduction

### Experimental investigation into drag performance and flow mechanics

Flat surfaces with arrays of wall-normal pores called micro-cavity arrays have shown potential to reduce turbulent skin friction drag. Their designs have been inspired by acoustic liners which are sandwich panels consisting of a hon ...