[LCRC Accounts] Yearly Allocation Request for Denso_simulations
Hello, A yearly allocation for the LCRC cluster has been requested with the following updated information: Submitter/PI: Kaushik Saha Project Name: Denso_simulations Division: ES Project title: Numerical Investigation of Effectiveness of Enriched Nitrogen and Oxygen Using Air Separation Membranes for Internal Combustion Engines Associated funding: WFO for Denso Corporation Other Systems: Science: This project will use an Eulerian-Lagrangian Computation Fluid Dynamics (CFD) software called CONVERGE to model gas exchange, mixture formation, diesel spray formation and combustion characteristics for the proof-of-concept study, utilizing the idea of donut-combustion, with enriched O2 at the core, surrounded by enriched N2. ‘Enriched’ indicates proportion of a specific species, such as, O2 is higher than its proportion in Air. Project description: The project is divided in two parts: In the first part, closed cycle (IVC to EVO) combustion simulations will be carried out to understand the effects of – grid resolution, initial levels of swirl, RPM, start of injection and enriched versus air configurations, on the mixture formation and combustion performance. Sector simulations will be carried out for these parametric studies to provide fundamental understanding, without consuming excessive core-hours. In the second part, open-cycle (including intake, compression, power and exhaust strokes) with full 360⁰ geometry will be carried out to first understand the gas exchange processes between N2 enriched and O2 enriched streams for different combinations of intake and exhaust conditions. With intake and exhaust manifolds included in the computational domain, periodic boundary conditions are no longer valid and therefore, sector simulations will not be good enough to capture the physics of the problem. Once an optimum setting is inferred for gas exchange, spray injection and combustion simulations will be carried out. Multiple cycles will be carried out in the simulations to reach a reasonable convergence to provide representative estimates of the flow-field and the combustion phenomenon. Industry partnership: DENSO Corporation Project URL: Current FY Hours Used: undetermined amount New FY Requested allocation: 475000 Q1: 175000 Q2: 125000 Q3: 100000 Q4: 75000 Justification: Storage requirements: 3 TB. In the last year 1 TB storage space did not turn out to be sufficient. Considering the large scale open-cycle simulation and the number of runs needed for successful completion of the project it is imperative that we need 3 TB storage space. We already requested to increase our storage space beyond 1 TB and currently we have 3 TB of storage space. Thank You, The LCRC Accounts System
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