I suggest that we approve GAS_injection for 200K in Q3 and le the allocations committee deal qwith Q4. Ray ----------------------------------------- Ray Bair Argonne National Laboratory On 4/21/16, 2:24 PM, "Bartolucci, Lorenzo" <[email protected]> wrote:

Hi Ray.

The project is not part of a CRADA or partnership with a company, but a collaboration with the University of Rome Tor Vergata and the results will be published in the literature.

Best Regards,

Lorenzo

-----Original Message----- From: Bair, Raymond A. Sent: Thursday, April 21, 2016 1:47 PM To: Bartolucci, Lorenzo <[email protected]> Subject: Re: Project Request: GAS_injection

Dear Lorenzo,

Thank you for the detailed project info. Is this project part of a CRADA or partnership with a company? Will the results be published in the open literature?

Regards,

Ray

----------------------------------------- Ray Bair Argonne National Laboratory

On 4/20/16, 1:13 PM, "[email protected] on behalf of [email protected]" <[email protected] on behalf of [email protected]> wrote:

...

Hello,

A new project on the LCRC cluster has been requested. Please forward the information on to the LCRC Allocation sub-committee.

Applicant's name: Lorenzo Bartolucci Applicant's institution: ANL Applicant's division: ES Project Name: GAS_injection Project title: High-Pressure Gaseous Fuel Injection Research – in-nozzle flow and jet evolution Associated funding: Other Systems: Science: Current state of art of injection system provides several works about the in-nozzle analysis of liquid fuel injectors but a lack in knowledge is present in the gaseous fuel injector in-nozzle flow. The main goal of this project is to deeply understand the phenomenon occurring into the injector during the transients – both opening and closure – and how those are related with the following jet evolution, in order to obtain detailed information that can be used as input for ICE simulations. The analysis will be carried out in collaboration with the Argonne x-ray diagnostic group and the University of Rome Tor Vergata.

Project description: This project focuses on investigating the in-nozzle flow for a gaseous inward opening injector and the consequently under-expanded jet evolution. This is aimed to provide a better comprehension of the local phenomenon and how those affect the typical behavior of the under-expanded gaseous jet (such as mach disk location and width, local thermo-fluid-dynamics properties and mixing with the surrounding mixture). The final purpose is to obtain detail information that ca be used as input for ICE simulation where, such a deeply analysis is not affordable run-time and to overcome the limits of the information provided by experimental analysis which often require some assumptions. It will be particularly focused also on the mesh influence on the quality of the numerical results, to provide some guidelines to obtain a reliable representation of the gaseous jet evolution and mixing (which will be evaluated by a comparison with x-ray radiography data). The project can be divided in two different steps: - the calibration of the numerical inputs (mesh strategies, boundary conditions, numerical setting) both for steady-state and transient analysis; - a deeply parametric study changing the pressure ratio, looking at the influence of particular detailed aspects of the injector provided by the x-ray tomography (such as non-symmetries, roughness, etc), and some preliminary in cylinder cold flow injection analysis. Simulations will be performed with the commercial code CONVERGE and computational grids of the order of 10-20 millions of cells which will require the use of 64-144 cores depending on the specific test case. The project has one member (barlo) working full-time on it, with 1-2 cases running regularly. With an average estimate of 128cores per run and 1 case the expected amount of core-hrs needed for this project for each quarter is 128 cores x 24 hrs x 1 run x 90 days = 276480. Considering some queue time our request is for 490000 hrs total, equally distributed by Q3 and Q4. Industry partnership: Project URL: Requested allocation: 490000 Q1: 0 Q2: 0 Q3: 245000 Q4: 245000 Justification: Storage requirements: Due to the big size of the single case data we kindly ask for a project folder size of about 2TB.

The requester has used undetermined amount hours of their initial startup project.

In addition to approving an initial amount, please specify a Category and Subcategory for this project. For a list of the current selection of approved categories, please see:

https://wiki.lcrc.anl.gov/wiki/Processes/Categories

Once the Allocation committee has approved the project, please go to the Project Management page to create it:

https://accounts.lcrc.anl.gov/projects.php

Thank You, The LCRC Accounts System