Hello, A yearly allocation for the LCRC cluster has been requested with the following updated information: Submitter/PI: Sibendu Som Project Name: cfd_enginemodeling Division: ES Project title: Computational Fluid Dynamics Modeling of Petrodiesel and Biodiesel for Compression Ignition engine applications Associated funding: LDRD Project Other Systems: Science: This project will use an Eulerian-Lagrangian Computation Fluid Dynamics (CFD) software called CONVERGE to model various diesel engine processes like internal nozzle flow, spray behavior, combustion and emission processes. The goal is to capture the differences between diesel and biodiesel fuels from a CFD standpoint since computer based modeling is more cost effective than performing full scale laboratory experiments. Project description: The project is dived in two parts: In the first part, engine processes will be modeled using petrodiesel. The spray data obtained from Advanced Photo Source at Argonne and single-cylinder engine performance and emission data from CAT cell will be used to further develop and validate spray and combustion models in CONVERGE and perform parametric studies. The major motivation is to develop more predictive and robust sub-models for capturing diesel engine processes. In the second part, fundamental studies will be performed to establish flame stabilization and lift-off characteristics of biodiesel using CONVERGE. A new surrogate (methyl decanoate) fuel will be used for modeling the combustion characteristics of biodiesel. Comparison will be performed between inner nozzle flow, nonevaporating and evaporating spray, combustion characteristics, engine performance and emission characteristics of biodiesel and petrodiesel. Some key simulation features are listed below: 1) Finite volume schemes 2) LES and RANS turbulence models used 3) Detailed chemical kinetic models for diesel and biodiesel fuels 4) CONVERGE software is being used - 48 licenses available 5) Scales well up-to 48 processors 6) Detailed spray models used for different spray processes 7) Full-cycle engine simulations Project URL: http://www.transportation.anl.gov/ Current FY Hours Used: undetermined amount New FY Requested allocation: 495000 Q1: 123750 Q2: 123750 Q3: 123750 Q4: 123750 Justification: Thank You, The LCRC Accounts System