Download RELEASE NOTES

STAR-CD Version 3.24 Release Notes
(a) Select the Anisotropic Conductivity option for solids via the pro-STAR GUI
(b) Use the EDATA command or the Extended Data GUI panel to add keyword
ANISO_UCODE to the problem file
(c) Write the conduc.f user subroutine to the ufile sub-directory and then edit
it accordingly
5. The following developments have been implemented for free-surface modelling:
(a) The surface tension model has been improved, by applying a smoothing
function to the volume fraction (VOF) field when calculating the curvature of
the gas-liquid or liquid-liquid interface.
(b) Apart from the default Crank-Nicholson temporal differencing scheme, an
Euler-implicit scheme is now offered for the solution of the volume fraction
transport equation. This is activated by Switch 158.
(c) The buoyancy effect on turbulence energy generation is taken into account
when the buoyancy force is activated. For some cases where both buoyancy and
turbulence effects are large, a smaller time step may be needed for numerical
stability.
6. A default set of STAR-PNP run options may be defined for general use, and these
may be tailored to site-specific conditions. Please refer to Appendix H of the User
Guide for further information.
7. Users can avoid using the insecure rsh, remsh and rcp tools when starting
remote tasks or remote copying of files. Any one of the alternative secure tools such
as Kerberos or Secure Shell (ssh) may be used instead. This option is defined by
REMOTETASK and REMOTECOPY settings in the hardware.ini file as in the
following examples:
REMOTETASK=ssh
REMOTECOPY=scp
REMOTETASK=/usr/kerberos/bin/rsh
REMOTECOPY=/usr/kerberos/bin/rcp
This facility works by using a wrapper script to redirect rsh, remsh and rcp calls
to the alternative remote commands specified. If you wish to select a more
secure protocol as the method of authenticating remote connections, you need to
configure your environment so that no password or secret passphrase is needed
to login to the remote nodes for parallel programs to work properly.
You are recommended to use the new MPICH 1.2.4 installations supplied with
the STAR V3.24 solver. Otherwise, you must compile MPICH using the
-rsh=rsh configuration option (-rsh=remsh on HP-UX) to remove the
hardwired remote command. This is so that a single MPICH installation can support
Kerberos, Secure Shell or any other remote tool as well as the standard remote shell.
8. It is now possible to compile user subroutines that require additional dynamic
shared objects. User subroutines can also be supplied as pre-compiled static
libraries.
9. It is also possible to run the STAR solver using distributed data without mounting a
NFS disk onto the remote nodes in order to start a parallel run. When running the
STAR solver on clusters without NFS the following limitations apply:
3-4