News

Success of the EPSRC High End Computing Consortia Proposal (Renewal of the UKCTRF)

Published: 2nd May 2018

The proposal on behalf of UKCTRF entitled “Addressing Challenges Through Effective Utilisation of High Performance Computing – a case for the UK Consortium on Turbulent Reacting Flows (UKCTRF)” submitted to EPSRC in response to their recent call on High End Computing Consortia call has been successful. Prof. N. Chakraborty (Newcastle University) is the PI and Dr. S. Navarro-Martinez (Imperial College), Profs. R.S. Cant (Cambridge), D. Emerson (Science and Technology Facilities Council) and W. Jones (Imperial College) are the CIs of this proposal. The panel outcome can be seen from the following weblink:

http://gow.epsrc.ac.uk/NGBOViewPanelROL.aspx?PanelId=1-4TO24I&RankingListId=1-4TO24Q

The new expanded UK Consortium on Turbulent Reacting Flows (UKCTRF) will further utilise the developments of High-Performance Computing (HPC) to offer improved fundamental understanding and modelling of turbulent reacting flows, which are pivotal in the effective usage of energy resources, development of reliable fire safety measures, and manipulation of the combustion processes to ensure environmental friendliness. These challenges are multi-faceted, and will require collaboration across a wide range of scientific areas. The UKCTRF brings together 40 experts (PI, 6 Co-Investigators, and 33 members) across 19 UK institutions, experienced in using HPC to enable concerted collaborative Computational Fluid Dynamics (CFD)-related fundamental and applied research on turbulent reacting flows to reduce duplication, and tackle challenges grander than individual attempts. Since its inception in 2014, the UKCTRF has achieved significant scientific and industrial impact with over 400 journal and conference papers which utilised ARCHER. The President of the Combustion Institute, Prof. J.F. Driscoll, has stated in his support letter that the publications of the UKCTRF members are among the best which help develop the minds of young researchers and the support letter from Rolls Royce states that as a result of the UKCTRF significant progress was made in the prediction of combustion phenomena with the help of HPC. Over the next 4 years, the consortium’s goals are to: (i) further utilise HPC resources to conduct world-leading turbulent reacting flow research involving Reynolds Averaged Navier-Stokes (RANS), Large Eddy Simulation (LES) and Direct Numerical Simulation (DNS); (ii) extract fundamental physical insights from simulations to develop high-fidelity modelling methodologies to study turbulent reacting flows relevant to power production, transportation and fire safety engineering; and (iii) ensure a forward-looking software development strategy to develop computationally efficient algorithms, and effectively exploit current and future developments of HPC hardware. The proposed research will build on the foundations of the current UKCTRF (2014-2019) and Flagship Software development (EP/P022286/1) projects and will address universal challenges of energy efficiency, sustainability and high-fidelity fire safety. The progress in HPC will enable this new incarnation of UKCTRF to reinforce existing strengths, but also address the following timely intellectual and industry-driven challenges: (i) simulation and modelling of multi-phase reacting flows (e.g. droplet and pulverised coal/biomass combustion); (ii) combustion analysis of biogas and low calorific fuels derived from coal gasification; (iii) flame-wall interaction; and (iv) combustion at elevated pressures, which have only recently become accessible due to the advancement of HPC.

 

UKCTRF 2017 Prize Winners

Published: 6th October 2017

The UKCTRF Meeting took place in Southampton on 7th – 8th September and we are delighted to announce the winners for the Presentation and the Audio-visual categories:

PRIZE WINNERS BASED ON PRESENTATION

1st Prize                              Andrea Giusti                           University of Cambridge

2nd Prize                           Michael Philip Sitte                 University of Cambridge

3rd Prize (joint place)    Kimberly Bowal                        University of Cambridge

3rd Prize (joint place)     Angiras Menon                         University of Cambridge

PRIZE WINNERS BASED ON AUDIO-VISUAL CATEGORY

1st Prize (joint place)     Reza Khodadadi Azadboni            Kingston University London

1st Prize (joint place)      Michael Philip Sitte                       University of Cambridge

3rd Prize                            Andrea Giusti                                  University of Cambridge

Success of the EPSRC Flagship Software Development Proposal

Published: 9th September 2016

The proposal on behalf of UKCTRF entitled “Adaptive software for high-fidelity simulations of multi-phase turbulent reacting flows” submitted to EPSRC in response to their recent call on flagship software development call has been successful. Prof. N. Chakraborty (Newcastle University) is the PI and Profs. R.S. Cant (Cambridge),D. Emerson (Daresbury Laboratory) and Dr. C. Moulinec (Daresbury Laboratory) are the CIs of this proposal.

This project will focus on the development, validation and documentation of a next-generation fully parallelised computational fluid dynamics (CFD) code called HAMISH based on adaptive mesh refinement (AMR) which will enable high-fidelity Direct Numerical Simulations (DNS) of advanced turbulent reacting flows such as flame-wall interaction, localised ignition, and droplet combustion including atomisation processes.

Such simulations cannot be achieved at present without limiting simplifications due to their prohibitive computational cost. AMR for large-scale highly-parallel simulations of compressible turbulent reacting flows is a significant new functionality which will offer major benefits in terms of computational economy for problems involving thin fluid-mechanical structures, e.g. resolution of both the flame and the boundary layer in flame-wall interaction, droplet surfaces in atomisation in spray combustion, shock waves in localised forced ignition, etc.

Such structures have either been ignored or simplified severely in previous work due to the prohibitive computational cost of fixed global meshes, thus limiting the usefulness of the simulations.

Hence AMR will offer a step-change in capability for the computational analysis of turbulent reacting flows, and will provide data with the degree of detailed physical information which is not currently available from simulations using existing CFD codes.

The software will be validated with respect to the results obtained from the well-proven uniform-mesh DNS code SENGA2, which has already been ported to ARCHER and is currently widely used by members of the UK Consortium on Turbulent Reacting Flows (UKCTRF).

The newly developed code, HAMISH, will not only be ported to ARCHER, but also be prepared for architectures supporting accelerators thanks to OpenMP 4.5, which will support OpenACC, targeting a POWER8 cluster. As a part of this project, a detailed user guide will be produced at each new release of the code.

This user guide will be made available on a website for public download along with the open-source version of the code and the associated documentation on code validation and user tutorials.