A Programme for the Nektar++ workshop is now available: Nektar++ Workshop 2017
Nektar++ has been used to investigate the incompressible flow around wings with spanwise waviness, using direct numerical simulations at different Reynolds numbers. The waviness was imposed by a coordinate transformation, using a novel technique presented in our JCP paper (1). This global mapping allowed us to consider a 2.5D problem, leading to significant advantages in terms […]
Nektar++ Workshop 2017
The Nektar++ Workshop 2017 will be held at Imperial College on 14th-15th June 2017. The 3rd annual Nektar++ Workshop will bring together developers and users of all experiences to hear about new and future developments in Nektar++ and the exciting science and engineering being undertaken with the code.
Understanding the fluid mechanics behind transverse wall shear stress
Abstract: Here we use numerical methods to investigate the nature of the arterial flows captured by transWSS and the sensitivity of transWSS to inflow waveform and aortic geometry.
Contributing to Nektar++
We encourage people who extend the code to help with their research to contribute those changes back into the main codebase for the benefit of other researchers. We have a number of tools and processes to help this including a code repository, a testing framework, code review and a continuous integration system.
Installing Nektar++ on OS X through MacPorts or Homebrew
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++.
Direct numerical simulation of laminar-turbulent transition
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.
Nektar++ on ECMWF Cray XC30
The ECMWF HPC facilities are composed by two identical Cray XC30 systems that support both operational forecast requirements of the centre and research.
Nektar++ on Copper (Cray XE6)
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.