imported>Jevansen: Moving from Category:University of Illinois at Urbana–Champaign centers and institutes to Category:University of Illinois Urbana-Champaign centers and institutes using Cat-a-lot

2022-06-13T03:33:43Z

Moving from Category:University of Illinois at Urbana–Champaign centers and institutes to Category:University of Illinois Urbana-Champaign centers and institutes using Cat-a-lot

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{{Infobox
|image = [[Image:CSAR logo.jpg|300px|CSAR Logo]]
|title=CSAR
|label1=Founded
|data1=1997
|label2=Location
|data2=University of Illinois at Urbana-Champaign
|label3=Department
|data3=Computational Science and Engineering
|label4=Goal
|data4=Develop accurate computation models of solid-state rocket propellant systems
|label5=Staff
|data5=Approx. 80 Faculty, Staff, and Students <ref name="CSAR_about" />
|label6=Research Areas
|data6=Fluids and Combustion

Structures and Materials

Computer Science

System Integration

Uncertainty Integration
}}
The '''Center for Simulation of Advanced Rockets''' ('''CSAR''') is an [[interdisciplinary]] research group at the [[University of Illinois at Urbana-Champaign]], and is part of the [[United States Department of Energy]]'s [[Advanced Simulation and Computing Program]]. CSAR's goal is to accurately predict the performance, reliability, and safety of solid propellant rockets.<ref name="CSAR_home">[http://www.csar.uiuc.edu/ CSAR Homepage] {{webarchive |url=https://web.archive.org/web/20081006133048/http://www.csar.uiuc.edu/ |date=October 6, 2008 }} Retrieved October 10, 2008</ref>

CSAR was founded in 1997 as part of the Department of Energy's Advanced Simulation and Computing Program. The goal of this program is to "enable accurate prediction of the performance, reliability, and safety of complex physical systems through computational simulation." CSAR extends this motive into the realm of solid [[rocket propellant]]s, specifically those used by the [[Space Shuttle]].
<ref name="CSAR_about">[http://www.csar.uiuc.edu/about/index.html About CSAR] {{webarchive |url=https://web.archive.org/web/20080513010530/http://www.csar.uiuc.edu/about/index.html |date=May 13, 2008 }} Retrieved October 10, 2008</ref>

CSAR aims to be able to simulate entire rocket systems, under normal and abnormal situations. This involves highly accurate modeling of components and dynamics of fuel flow and other environmental factors. Modeling this requires large computational power, on the order of thousands of processors. Development of the computational infrastructure is critical in achieving their goal.<ref name="CSAR_about" />

== Areas of research ==
There are several fields researched by CSAR.<ref name="CSAR_research">[http://www.csar.uiuc.edu/research/index.html Basic Research at CSAR] {{webarchive |url=https://web.archive.org/web/20080510142845/http://www.csar.uiuc.edu/research/index.html |date=May 10, 2008 }} Retrieved October 10, 2008</ref> Physical simulations are implemented in CSAR's Rocstar software suite.
*[[Fluid Dynamics|Fluids and combustion]] - The study of how a rocket's fuels are ignited and directed in such a way as to provide thrust.
** Multiphase Flow
** Turbulence Modeling
** Multiscale Acceleration (via "time zooming")
** Propellant Morphology/characterization
** Propellant combustion modeling
* [[Material science|Structures and Materials]] - Analysis of the physical structure of a rocket
** Constitutive and damage modeling
** Crack propagation
** Multiscale materials modeling
** Molecular modeling of material interfaces
** Space-time discontinuous Galerkin Methods
* [[Computer Science]] - Development of advanced simulation and visualization tools
** Parallel programming environments
** Parallel I/O
** Parallel performance modeling and prediction
** Meshing
** Hybrid geometric/topological mesh partitioner
** Visualization
* System Integration - Bringing the available tools and resources together in an efficient manner
** Object-oriented integration framework
** Flexible parallel orchestration
** Stable component coupling and time-stepping
** Accurate and conservative data transfer based on common refinement
** Stable and efficient surface propagation
* [[Uncertainty Quantification]] - Determining accuracy and confidence in simulation results
** Clustering techniques for sampling-based Uncertainty Quantification

== Computation environment ==
Physical simulations are performed using CSAR's [[Rocstar]] suite of numerical solver applications. Rocstar was built by CSAR, and is designed to run efficiently on massively parallel computers. Implementation of Rocstar is done in [[Message Passing Interface|MPI]] and is entirely compatible with [[Charm++|Adaptive MPI]]. Rocstar is currently in its third version, Rocstar 3. Documentation on using Rocstar 3 is available through a [https://web.archive.org/web/20080807124905/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/Rocstar3_UG.pdf User's Guide].

CSAR uses a number of supercomputing resources for their simulations. Along with CSAR, the [[National Center for Supercomputing Applications]] is located at the [[University of Illinois at Urbana-Champaign]]. CSAR takes advantage of the computing environment provided by NCSA for many simulations. The university's department of Computational Science and Engineering has a supercomputing cluster known as [https://web.archive.org/web/20080828040923/http://www.cse.uiuc.edu/turing Turing], which is also utilized by CSAR.<ref name="CSAR_Computing">[http://www.csar.uiuc.edu/computing/index.html CSAR Computing] {{webarchive |url=https://web.archive.org/web/20090201005216/http://www.csar.uiuc.edu/computing/index.html |date=February 1, 2009 }} Retrieved October 11, 2008</ref>

The computation environment used by CSAR takes advantage of work done by the University of Illinois' [http://charm.cs.uiuc.edu/ Parallel Programming Lab], in particular [[Charm++]] and Adaptive MPI.<ref name="PPL">[http://charm.cs.uiuc.edu/research/rocket/ Parallel Programming Lab: Rocket Simulation] Retrieved October 11, 2008</ref> These parallel programming frameworks allow for application development that scales easily to thousands of processors, which allows for highly complex computations to finish quickly. The [[Run-time system]] employed by both Charm++ and AMPI has two primary features that are used by CSAR's software: load-balancing, which helps improve performance by keeping work distributed evenly across all processors, and checkpointing, which allows a lengthy computation to be saved and restarted without having to start over.

Using these highly parallel tools, CSAR's developers have built a number of components which are able to simulate various physical phenomena related to rocket propulsion. Combined, they provide a complete simulation environment. Below is a list of all the Rocstar modules and links to their respective users guides.
{| class="wikitable"
|+Rocstar Modules<ref name="Rocstar_Modules">[http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/UG.html CSAR Software Documentation] {{webarchive |url=https://web.archive.org/web/20080513012319/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/UG.html |date=May 13, 2008 }} Retrieved October 15, 2008</ref>
|-
! Field !! Name !! class="unsortable" | User's Manual !! Description
|-
| Combustion || Rocburn || [https://web.archive.org/web/20080807124551/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/Rocburn2D_UG.pdf] ||
|-
| rowspan=5 | Fluids || RocfloMP || [https://web.archive.org/web/20080807124018/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/rocflo_ug.pdf] ||
|-
| RocfluMP || [https://web.archive.org/web/20080807124106/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/rocflump_book.pdf] ||
|-
| Roctpart || [https://web.archive.org/web/20080807124218/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/rocpart_ug.pdf] ||
|-
| Rocturb || [https://web.archive.org/web/20080807123946/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/rocturb_ug.pdf] ||
|-
| Rocrad || [https://web.archive.org/web/20080724204459/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/Rocrad_ug.pdf] ||
|-
| rowspan=2 | Solids || Rocfrac || [https://web.archive.org/web/20080807124822/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/Rocfrac_ug.pdf] ||
|-
| Rocsolid || [https://web.archive.org/web/20080511164725/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/Rocsolid_3.4_UG.pdf] ||
|-
| rowspan=9 | Computer Science || Rocman || [https://web.archive.org/web/20080807124026/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/Rocman_ug.pdf] ||
|-
| Roccom || [https://web.archive.org/web/20080807124355/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/Roccom_ug.pdf] ||
|-
| Rocface || [https://web.archive.org/web/20080724201333/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/Rocface_ug.pdf] ||
|-
| Rocblas || [https://web.archive.org/web/20080724202133/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/Rocblas_ug.pdf] ||
|-
| Rocin || [https://web.archive.org/web/20080724201528/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/Rocin_ug.pdf] ||
|-
| RocHDF || [https://web.archive.org/web/20080807123954/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/Rochdf_udg.pdf] ||
|-
| Rocmop || [https://web.archive.org/web/20080807124210/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/Rocmop_UG.pdf] ||
|-
| Rocrem || [https://web.archive.org/web/20080724203135/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/rocrem_ug.pdf] ||
|-
| Rocketeer || [https://web.archive.org/web/20080724201944/http://www.csar.uiuc.edu/F_software/rocketeer/Rocketeer_Users_Guide.htm] || Visualization tool for complex 2-D and 3-D data sets.
|-
| rowspan=4 | Utilities || Rocbuild || [https://web.archive.org/web/20080807123842/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/Rocbuild_UG.pdf] ||
|-
| Roctest || [https://web.archive.org/web/20080807124138/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/Roctest_UG.pdf] ||
|-
| Rocdiff || [https://web.archive.org/web/20080724205006/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/Rocdiff_UG.pdf] ||
|-
| Rocprep || [https://web.archive.org/web/20080724201024/http://www.csar.uiuc.edu/CSARdocs/DocumentsPub/uguides/Rocprep_UG.pdf] ||
|-
|}

== Events ==
* On 11–12 June 2007, UIUC's [[Computational Science and Engineering]] department, home of CSAR, hosted a workshop on [[Uncertainty Quantification]]. Over 40 people attended, and lectures were given by [https://web.archive.org/web/20090109060258/http://www.ca.sandia.gov/crf/staff/staffPage.php?sid=hnnajm Habib Najm] and [https://web.archive.org/web/20080715170301/http://www.mae.cornell.edu/zabaras/People/zabarasCV/Zabaras.html Nicholas J. Zabaras].
* On 13 July 2007, CSAR held their International Symposium on Solid Rocket Modeling and Simulation, which featured speakers from CSAR, Japan's [[JAXA]], and France's [[SNPE]]<ref name='Symposium'>[http://www.csar.uiuc.edu/seminars/symposium.html International Symposium on Solid Rocket Modeling and Simulation] {{webarchive |url=https://web.archive.org/web/20080513082252/http://www.csar.uiuc.edu/seminars/symposium.html |date=May 13, 2008 }} Retrieved October 10, 2008</ref>

== References ==
<references/>

{{University of Illinois at Urbana-Champaign campus}}

{{DEFAULTSORT:Center For The Simulation Of Advanced Rockets}}
[[Category:Rockets and missiles]]
[[Category:University of Illinois Urbana-Champaign centers and institutes]]
[[Category:1997 establishments in Illinois]]

Center for the Simulation of Advanced Rockets - Revision history

imported>Jevansen: Moving from Category:University of Illinois at Urbana–Champaign centers and institutes to Category:University of Illinois Urbana-Champaign centers and institutes using Cat-a-lot