Advancements in modern hardware and numerical methods have significantly enhanced the feasibility of scale-resolving simulations, such as direct numerical simulation, for industrial applications. For effective application, these simulations require the generation of realistic incoming turbulence to ensure accurate predictions of the flow field. The challenge of introducing realistic turbulence in the computational domain is addressed […]
The latest version of Nektar++, v5.7.0, was released on the 30th October 2024. This release includes a range of new features and improvements over the 5.6.0 release. A full list of the changes is available in the CHANGELOG.md file distributed with the source code. As always, if you encounter any problems please feel free to […]
The ARCHER2 national supercomputer is a world class advanced computing resource and is the successor to ARCHER. This guide is intended to provide basic instructions for compiling the Nektar++ stable release or master branch on the ARCHER2 system.
This blog explains how to set up industrial simulations using the Incompressible Navier-Stokes (IncNS) Solver in Nektar++. The geometry here is the Imperial Front Wing (IFW), an unraced front-wing configuration of the McLaren MP4-17D race car. Combined with a rolling wheel, it is a representative model for modern open-wheel motorsports, especially Formula 1 front-wing designs. […]
Basic Information about HX1 HX1 (or Hex) is the new High Performance Computing Cluster provided by the Research Computing Services at Imperial College London. HX1 is designed for the following types of applications: For single node parallel applications, continue using the CX3 service. (Taken from: HX1 User Guide) Access to the cluster To get access, […]
Abhishek Kumar and Junho ParkFluid and Complex systems, Coventry University, Coventry Taylor-Couette (TC) flow involves fluid motion between rotating concentric cylinders, one of the key problems in fluid dynamics. Its behaviour varies from axisymmetric Taylor vortices to turbulence through different patterns. The flow dynamics become more complicated when a temperature difference is applied between the two cylinders, […]
Dr Wrik Malik, James Watt School of Engineering, University of Glasgow Underwater radiated noise from shipping activities and offshore wind turbine construction/operation acts as a stressor for marine mammals. Thus, there is an urgent need to develop accurate underwater noise source characterisation and prediction capability of underwater radiated noise to regulate industrial marine activities. Existing […]
The latest version of Nektar++, v5.5.0, was released on the 31st January 2024. This release includes a range of new features and improvements over the 5.4.0 release. A full list of the changes is available in the CHANGELOG.md file distributed with the source code. As always, if you encounter any problems please feel free to […]
DOI: 10.2139/ssrn.4632754
We present NekMesh: an open-source mesh generation package which is designed to enable the generation of valid, high-quality curvilinear meshes of complex, three-dimensional geometries for performing high-order simulations.
DOI: 10.1017/jfm.2023.735
The three-dimensional (3-D) transition of the leading-edge vortex (LEV) and the force characteristics of the plunging airfoil are investigated in the chord-based Strouhal number Stc range of 0.10 to 1.0 by means of experimental measurements, numerical simulations and linear stability analysis in order to understand the spanwise instabilities and the
effects on the force.