DNS of a counter-flow channel configuration

$y$ ) with the channel centreline located at

$y=0$ . The mean stresses are defined as

$\langle u_i^{\prime}u_j^{\prime}\rangle=\langle u_i u_j \rangle - \langle u_i \rangle \langle u_j \rangle$ . Angle brackets denote averages over the homogeneous spatial directions (streamwise

$x$ and spanwise

$z$ ) and time. The Favre average is related to the Reynolds average as

$\langle \rho \rangle \{u_i^{\prime\prime}u_j^{\prime\prime}\}=\langle \rho u_i u_j \rangle - \langle \rho \rangle \langle u_i \rangle \langle u_j \rangle$ . The mean Mach number is defined as

$\langle M \rangle = {\sqrt{\langle u \rangle^2+\langle v \rangle^2+\langle w \rangle^2}}/{{\langle a \rangle}}$ where

$a$ is the local speed of sound. The turbulent Mach number is defined as

$M_t = {\sqrt{\langle u^{\prime}u^{\prime} \rangle+\langle v^{\prime}v^{\prime} \rangle+\langle w^{\prime}w^{\prime} \rangle}}/{{\langle a \rangle}}$ . # ============================================================================================== Details of the OpenSBLI framework, its numerical methodology and existing flow configurations can be found in the following papers: OpenSBLI: Automated code-generation for heterogeneous computing architectures applied to compressible fluid dynamics on structured grids. (link) OpenSBLI: A framework for the automated derivation and parallel execution of finite difference solvers on a range of computer architectures. (link) On the performance of WENO/TENO schemes to resolve turbulence in DNS/LES of high‐speed compressible flows. (link)

10.5281/zenodo.4635349

Zenodo

Lusher, David

44ff9096-3c84-440a-9f64-946636aff985

Hamzehloo, Arash

456b886d-3edb-4dd3-9512-0cb0fb5cf146

Laizet, Sylvain

b5c2e5cf-1d8d-4615-9d18-f086b008ae51

Sandham, Neil

0024d8cd-c788-4811-a470-57934fbdcf97

Lusher, David

44ff9096-3c84-440a-9f64-946636aff985

Hamzehloo, Arash

456b886d-3edb-4dd3-9512-0cb0fb5cf146

Laizet, Sylvain

b5c2e5cf-1d8d-4615-9d18-f086b008ae51

Sandham, Neil

0024d8cd-c788-4811-a470-57934fbdcf97

(2021) DNS of a counter-flow channel configuration. Zenodo doi:10.5281/zenodo.4635349 [Dataset]

Record type: Dataset

Abstract

Mean flow and turbulence statistics of a compressible turbulent counter-flow channel configuration. This dataset is based on direct numerical simulations conducted using OpenSBLI (https://opensbli.github.io/), a Python-based automatic source code generation and parallel computing framework for finite difference discretisation. #============================================================================================== # Please cite the following paper when publishing using this dataset: # Title: Direct numerical simulation of compressible turbulence in a counter-flow channel configuration # Authors: Arash Hamzehloo, David Lusher, Sylvain Laizet and Neil Sandham # Journal: Physical Review Fluids # DOI: https://doi.org/10.1103/PhysRevFluids.6.094603 # ============================================================================================== Please note: Tables 1 and 2 of the above paper provide more detailed information on the counter-flow channels of this dataset. Each folder name of this dataset includes the Mach number, Reynolds number, domain size and grid resolution of a particular case, respectively. In each file, the first column contains the grid-point coordinates in the wall-normal direction ( $y$ ) with the channel centreline located at $y=0$ . The mean stresses are defined as $\langle u_i^{\prime}u_j^{\prime}\rangle=\langle u_i u_j \rangle - \langle u_i \rangle \langle u_j \rangle$ . Angle brackets denote averages over the homogeneous spatial directions (streamwise $x$ and spanwise $z$ ) and time. The Favre average is related to the Reynolds average as $\langle \rho \rangle \{u_i^{\prime\prime}u_j^{\prime\prime}\}=\langle \rho u_i u_j \rangle - \langle \rho \rangle \langle u_i \rangle \langle u_j \rangle$ . The mean Mach number is defined as $\langle M \rangle = {\sqrt{\langle u \rangle^2+\langle v \rangle^2+\langle w \rangle^2}}/{{\langle a \rangle}}$ where $a$ is the local speed of sound. The turbulent Mach number is defined as $M_t = {\sqrt{\langle u^{\prime}u^{\prime} \rangle+\langle v^{\prime}v^{\prime} \rangle+\langle w^{\prime}w^{\prime} \rangle}}/{{\langle a \rangle}}$ . # ============================================================================================== Details of the OpenSBLI framework, its numerical methodology and existing flow configurations can be found in the following papers: OpenSBLI: Automated code-generation for heterogeneous computing architectures applied to compressible fluid dynamics on structured grids. (link) OpenSBLI: A framework for the automated derivation and parallel execution of finite difference solvers on a range of computer architectures. (link) On the performance of WENO/TENO schemes to resolve turbulence in DNS/LES of high‐speed compressible flows. (link)