"FLUIDS for Windows", a finite difference computer routine, evaluates
pressure drop of flow through a system.The routine solves systems on a macro
level while not being concerned with molecular flow along a slip stream. The
cross sectional area and pressure loss coefficient of a duct are inputted by the
user. FLUIDS determines pressure loss and flow rate for each distinct part of a
system.Throughout the model, heat sources and heat sinks may be specified. The
fluid temperature is calculated based on mass flow rate and heat dissipation at
each section. The routine also handles conduction, radiation and convection heat
transfer for both steady-state and transient conditions.
FLUIDS is capable of calculating pressure drop for various liquids and gases.
Originally designed to determine air flow distribution through electronic
equipment, the routine is capable of also handling Water, Ethylene Glycol,
Hydraulic Oil (5606), JP-4 Fuel, Nitrogen Gas, and Coolanol 35. In addition to
its ability to analyze air flow through electronic equipment, FLUIDS can be an
excellent tool for modeling water irrigation systems, solar systems, aircraft
fuel flow systems, or heating/air conditioning duct systems for commercial multi-story
buildings. An entire electronic cabinet can be modeled to determine air flow and
temperature at any specific point within the cabinet. FLUIDS takes into
consideration the effect of localized heat generation on fluid density in its
analysis of the system. This routine performs analysis through the use of finite
difference modeling. A printer simplifies result presentation but is optional.
The solution to FLUIDS is obtained by solving a single set of simultaneous
equations using Gausian elimination. FLUIDS supports variable heat generation
and phase changing materials. Editing features have been included that speed
model generation and facilitate error discovery. This program has been designed
to be particularly useful to technical personnel and care has been taken to
simplify use whenever possible.
"FLUIDS" uses finite difference modeling to determine flow rates and
temperatures while handling multiple flow paths with any number of sinks and
sources. Either flow rates or pressures may be specified. Unique model editing
features of this routine include the substitution feature, insertion/deletion
feature, and a repeat feature. The substitution feature provides a method of
changing whole blocks of data with a single input. Sequential node numbering is
not required, therefore insertion or deletion of a node can be easily
accomplished. This routine is obviously designed with the user in mind. It has
many features to make it simple to use while the program is capable of
calculating very complex, technical problems. The results are printed in a form
that is readily understandable and efficient.
Our software routines may be downloaded from this web site and are fully operational for your testing for about 30 days.