This post briefly summarises how to install Nektar++ using either the MacPorts or Homebrew package managers. Both of these install a version of Nektar++ that includes MPI for parallel execution, ARPACK for stability analysis, FFTW for homogeneous expansions, PETSc support and a full set of solvers. They can also both be used to install development versions of Nektar++.
The process of laminar-turbulent transition consists of three stages: receptivity, linear eigenmode growth and nonlinear breakdown to turbulence. Recently, the interaction between Tollmien–Schlichting waves and base flow distorted by 3D localised roughness elements has also been studied.
The ECMWF HPC facilities are composed by two identical Cray XC30 systems that support both operational forecast requirements of the centre and research.
Copper is a Cray XE6 system and supports research programs of the United the States Department of Defense (DoD). The system is provided for computationally based science and engineering and is intended for high performance computing, large-scale storage, and utility computing.
Members of PRISM community are delighted to invite you to Imperial College on Monday 18th April for an event that explores the use of accelerators with finite element methods. More information is available here.
DOI: 10.1016/j.jcp.2015.12.009
This study addresses linear dispersion–diffusion analysis for the spectral/hp continuous Galerkin (CG) formulation in one dimension.
Mira is a Blue Gene/Q supercomputer ran by the Argonne national laboratory. As of 2016, it is ranked as the fifth-fastest supercomputer in the world. If you are interested in using Nektar++ on Mira, please read on. Users of Mira often have access to Cetus, a smaller cluster with the same architecture as Mira. The […]
Nektar++ has been used to investigate the flow dynamics and vortex generation behind the front section of a Formula 1 racing car. The above image shows the flow trajectory, coloured by pressure, at a Reynolds number of 220,000, based on the chord of the main-plane of the front-wing. The simulation has 13 million degrees of […]
Oracle Solaris Studio is a free proprietary development suite that includes compilers and analysis tools. It is available from here for free download upon a quite non-restrictive license agreement and it can be used locally on Linux machines with Java installed. On the internal Nektar++ compute nodes it is made available by running This pages describes how to use […]
Nektar++ includes a solver for simulating the dynamics of compressible inviscid/viscous flow on unstructured two-dimensional and three-dimensional meshes. Specifically, the solver solves two system of equations: Euler equations; Navier-Stokes equations. The systems are provided with a comprehensive set of boundary conditions (1) for specifying inflow/outflow variables as well as wall conditions. In both the systems appropriate techniques for […]