Hi Bill, Thanks for yet another release ! Looks like there are a couple of examples for the structural deformation. I havnt installed them yet.. But I have a couple of queries 1. Are the elasticity equations, an unsteady implementation ? 2. I see that in cgmp there is a fluid-solid interaction. Is the coupling explicit (fluid separate, solid separate and then exchange information) or implicit (fluid-solid solved as a coupled system) ? Cant wait to run all of them ! Cheers, Dominic -----Original Message----- From: overture-bounce@xxxxxxxxxxxxx [mailto:overture-bounce@xxxxxxxxxxxxx] On Behalf Of Bill Henshaw Sent: Tuesday, April 07, 2009 6:03 AM To: freelists Subject: [overture] Version 23 released Dear Overture users: Announcing the release of Overture.v23 and cg.v23. This version should compile with the newer versions of gcc (I use 4.3.2). A list of some of the major changes to Overture and cg are given below (from the Overture/CHANGES and cg/Changes files). Please let me know if you have troubles building or using the new version or if I have forgotten to fix some bug that has been previously reported. Regards, #6. ======================================================================== ============================== Overture.v23 - released March 13, 2009 Changes: o NOTE: Comments in command files can now begin with # or * o The new version of A++/P++ supports arrays that can have 2^63 = 9e18 elements, the previous version was limited to 2^31 = 2e9 elements. o ** Data base files now contain the Overture version number they were created with. If you are unable to read an old file with a newer version of Overture, Overture will tell you which older version to use. o fixed bug in plotting sequences in the show file. o fixed a bug in Oges -- the initial guess for iterative solvers was not being assigned properly for the case of systems of equations. o there is a new example in Overture/primer/gridPrint.C that reads a grid from a data base and outputs the grid information to a plain text file. o commands generated by perl in command files can now contain a comment line (starting with a '*' or '#') o the 2d contour plotter now has an option for flat-shading (toggle button) where the colour of each grid cell is constant (based on the average values at the 4 vertices) o fixed a bug in ogen that caused the hole-cutting to fail in some special cases in 2D (cutHolesNew.bC, line 2241) o fixed the hyperbolic grid generator so that it handles start curves that are "derivative" periodic o fixed a bug in Oges.C for predefined equations with mixed-BC's in which sometimes the system was wrongly thought to be singular. o fixed a bug in ReductionMapping.C -- the inverseMap was not correct. o fixed a bug in the mixed/aDotGradu/generalized-mixed BC on curvilinear grids -- a matrix was built and saved to hold the BC but this matrix was not updated if the coefficents of the mixed BC changed. o the option was added to the grid plotter to colour grids by domain number (for multi-domain grids) o there is a coefficient matrix example in tests/tcmge.C, that shows how to fill in arbitrary equations. o there is a new displayCoeff function to display elements in a coefficient matrix in a nice way. o the new version of Ogen can be used to generate grids in parallel for many cases (some hard cases that require backup interpolation will not work yet). ======================================================================== ====================== cg.v23 -- released March 13, 2009 Changes: o userDefinedMotion.C : the object params has been renamed to parameters. o userDefinedBoundaryValues.C : the getBoundaryData(..) functions are now in parameters.getBoundaryData(...) o There is now an option to save solution values over time at specified points using "probes". This information is written to a text file that can be plotted with the matlab script plotProbes.m o There have been many changes to cgmp. There now many examples of conjugate heat transfer problems that couple fluid flows and heat transfer. o The solid mechanics solver cgsm is starting to acquire some capabilities.