CAVS CFD Modeling and Simulation Research

CFD Modeling and Simulation Research at the Center for Advanced Vehicular Systems (CAVS) seeks to promote the overall mission of CAVS through research and development of advanced computational modeling, simulation, and design of physical systems to solve real world problems. Our research efforts use an application-driven and team-oriented approach to perform basic and applied research on complex industrially relevant engineering problems.

CFD SimSys Software

Loci framework for intra-application coordination of fine-grained numerical kernels and methods.

CHEM code (built with Loci) with finite-rate chemistry is used by NASA and DoD for launch vehicle, propulsion, and missile systems analysis.

AFLR unstructured planar, surface and volume mesh generation software. AFLR libraries are implemented directly within research, commercial and proprietary systems.

Bloom unstructured open or closed BL mesh generation software for integration with various outer mesh generators or mesh movement schemes.

SimSys Documentation for all AFLR, SolidMesh, and related software along with documentation on UG_IO SimSys file types.

UG_IO Software for reading, writing, and converting UG_IO SimSys file types used by AFLR and Bloom software.

SimSys Software Forum

The SimSys Software Forum provides users of CAVS CFD SimSys software a means to ask questions, submit enhancement requests, and report any bugs they find in the software. Any and all users are encouraged to register using the link provided at the top of this page. Certain users may also be granted permission to download the software from the forum. The information required to request download access is described below.

Access to SimSys software is determined on a case-by-case basis and may be requested during registration or by modifying your profile after you have registered. The request should include a short description of the research project, requirements, and who you work for and/or with on the subject research. It is recommended that only a single user per site request download permissions to avoid installation problems. Download access is only provided to permanent employees of a given institution. All non-permanent University personnel, such as Visiting Researchers, Post-Doctoral Researchers and Students may not request download access and must instead have their Faculty Advisor or Supervisor register and request download access. Commercial companies requesting access for Government Purpose work must separately have a representative of the respective Government agency request access for them via email to the appropriate contact. We use that information primarily to document our assistance to various Government efforts. Inquiries related to AFLR or BLOOM should be directed to David L. Marcum. Inquiries related to Loci or CHEM should be directed to Edward A. Luke. SimSys software is subject to various Licenses, including Open, Research, Government Purpose, and Restricted Licenses. Access for non-Government Purpose work is evaluated separately. We are generally unable to distribute our software outside of the USA due to export restrictions.


CAVS CFD Research is historically rooted in the NSF Engineering Research Center for Computational Field Simulation (ERC) that was founded in 1990 at MSU with a mission to reduce the time and cost of complex field simulations for engineering analysis and design. As the NSF ERC evolved it gave rise to multiple centers including the CFD focused Computational Simulation and Design Center (SimCenter) and Center for Computational Systems (CCS). These centers merged in 2002 as the SimCenter and in 2009 the SimCenter merged with the Center for Advanced Vehicular Systems (CAVS). The SimCenter's mission, approach, and research continue on through CAVS as part of its modeling and simulation effort.