Hello, A yearly allocation for the LCRC cluster has been requested with the following updated information: Submitter/PI: Sibendu Som Project Name: foam-EngineProcesses Division: ES Project title: Assessment of OpenFOAM for different Engine-Process Applications Associated funding: DCG-LDRD, DOE-Vehicle Technologies Office Other Systems: Science: This project will use an Eulerian-Lagrangian Computation Fluid Dynamics (CFD) open source code called OpenFOAM to model various internal combustion engine processes like engine full-cycle and gas-exchange, sprays and gaseous jets behavior, nozzle internal flow, mixture formation, combustion and exhaust emissions. The goal is to assess the performance of OpenFOAM for varied engine-process applications. Scalability of OpenFOAM for different applications will also be tested. Project description: CFD problems in general are not linearly scalable because of the need for high inter-processor communication. This results in loss of computational efficiency. Performance monitoring tools will be used extensively to understand computation and communication patterns for various physical models (turbulence, transport properties), chemistry mechanisms (varying number of species and reactions) and grid-sizes. Based on these studies, different domain decomposition approaches will be assessed for optimum load-balancing among different processors. Strong and weak scalability for various problem-sizes will thus be assessed. Some key features of the simulations include: 1) Finite volume schemes 2) LES and RANS turbulence models used 3) Detailed chemical kinetic models for diesel and biodiesel fuels 4) Detailed spray models used for different spray processes 5) Full cycle engine simulations Project URL: http://www.transportation.anl.gov/ Current FY Hours Used: undetermined amount New FY Requested allocation: 250000 Q1: 62500 Q2: 62500 Q3: 62500 Q4: 62500 Justification: Thank You, The LCRC Accounts System