SINDA FLUINT v4.4 Incl. Keyfilemaker (c) C&R TECHNOLOGIES

rELEASe dATe [..02-09-2002] - pROGRAm tYPe [......Utility]
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sUPPLiEr [....Team EPSiLON] - dISKS nUMBERs [...07*2.88Mo]
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tESTEr [......Team EPSiLON] - diSKSEt iNFOs [epssf441.zip]
>>>>> [epssf447.zip]

SINDA/FLUINT Version 4.4

High Speed and Compressible Flow

Although FLUINT always handled the full thermodynamic and
momentum effects associated with compressible flow
(including choking), it previously made the assumption of
kinetic energy being negligible compared to thermal energy
(enthalpy-based or advective transport). Kinetic energy
transport is now included in the flow solutions, such that
certain high speed flow phenomena (e.g., Fanno line flow,
etc.) can be modeled.

While this enhancement is mostly transparent to the user,
there are a few subtle changes and cautions required.
First, all paths now have a definable flow area (AF) and
throat area (AFTH), although their use is optional for
many connector device types. If a path has no defined flow
area, then kinetic energy cannot be taken into account and
the flow will «stagnate» upstream of that path, perhaps to
be accelerated again downstream. Also, the optional
choking calculations (CHOKER, CHKCHL, etc.) no longer
assume that the upstream lump represents stagnation, and
therefore an expansion process need only be included if
the throat area is less than the flow area (AFTH < AF).
Finally, any lump in which velocities should be assumed
zero can be marked as such using a new «LSTAT=STAG» option
in lump subblocks. This designation affects not only
choking and kinetic energy calculations, it will also
automatically add an accelerational entrance loss
(equivalent to FK=1.0) to any appropriate path (tube,
STUBE, loss, etc.) attached to and flowing out of that
stagnant lump.

Miscellaneous Improvements

_Previously, simultaneous (sparse matrix based) thermal
solutions could be invoked on a submodel by submodel basis
using MATMET=1. Submodels that are tightly coupled can now
be combined into a single matrix using MATMET=2 (Section
4.4.1). Other values of MATMET retain their original
meaning: MATMET=0 means iterative, and MATMET=1 means
simultaneous (per submodel).
_A network connectivity checker has been added that
detects isolated groups of nodes: nodes having no
connection to a boundary node in steady states, and
arithmetic nodes having no connection to either boundary
or diffusion nodes in transients.
_Model size limits have been greatly increased.
In an attempt to avoid confusion for new users, the
built-in spell checker, controlled by the NODEBUG (Options
Data) and DEBOFF and DEBON (logic blocks) options, may
now be controlled using the SPELLON and SPELLOFF commands
instead. The old options are still available but have
become undocumented.
_In connector subblocks, general path inputs (FR= ..., DUP
= ... , STAT = ... etc.) are now tolerated following the
«DEV=» specification.
_Defaults now exist for NLOOPS, OUTPUT, and OUTPTF to
avoid aborted runs. The default for EXTLIM has been
reduced from 50 to 5 to avoid instabilities in models with
fluid systems, heat pipes, etc.
_SINDA now tolerates nodes with zero (or absent)
conductors as long as ties are present.
_The Fortran reserved word list has been expanded to
include many f90/f95 keywords («WHILE», «ENDDO»). This
prevents these names from being used as registers, named
control data, etc.
_RESTAR, RESPAR, RESTDB, etc. now check the input record
number for validity.
_A new routine, HEATPIPE, has been added to assist in
simulating fixed (constant) conductance heat pipes and
variable conductance heat pipes.
_CSGFAC can now be used as a CSGMIN divisor for time step
control in FWDBCK («Transient») as well as FORWRD. In
FWDBCK, use of negative DTIMEI is now taken to mean
overriding of the default (DTIME=0) internal time step
control, using instead a time step equal to CSGMIN/CSGFAC.
Positive DTIMEI retains its original meaning as the
directly specified time step.

Unzip/Unrar the archives into a temporary directory on
your HD, then install.
Be sure the keyfilemaker is in the directory of the
application.
Register with the type of registration you want.

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