## RSICC CODE PACKAGE PSR-559

### 1. NAME AND TITLE

TEMPEST-BNW: Transient 3-D Thermohydraulics
for FBR.

**AUXILARY CODES**:

SEQUEL and MANPLOT
for plotting output.

The MANPLOT
source, as supplied, is designed for a DEC VAX11/780.

### 2. CONTRIBUTORS

Pacific Northwest Laboratory, Richland, Washington, through
the NEA Data Bank, Issy-les-Moulineaux, France.

### 3. CODING LANGUAGE AND COMPUTER

Fortran* *(P00559C760000).

### 4. NATURE OF PROBLEM SOLVED

The finite-difference approach for the fluid- flow
solution is based on a semi-implicit procedure whereby the momentum equations
are solved explicitly, and the continuity/pressure solution is obtained
implicitly. The energy equation is solved with a fully implicit method, and a
direct steady-state option is available for heat transfer only problems.

### 5. METHOD OF SOLUTION

TEMPEST-BNW is a transient, three-dimensional,
hydrothermal program that is designed to analyze a range of coupled fluid
dynamic and heat transfer systems of particular interest to the Fast Breeder
Reactor (FBR) thermal- hydraulic design community. The full three-dimensional,
time- dependent equations of motion, continuity, and heat transport are solved
for either laminar or turbulent fluid flow, including heat diffusion and
generation in both solid and liquid materials. The equations governing mass,
momentum, and energy conservation for incompressible flows and small density
variations (Boussinesq approximation) are solved using finite-difference
techniques. Analyses may be conducted in either cylindrical or Cartesian coordinate
systems. Turbulence is treated using a two-equation model.

Two auxiliary plotting programs, SEQUEL and MANPLOT, for use
with TEMPEST-BNW output are included. SEQUEL may be operated in batch or
interactive mode; it generates data required for vector plots, contour plots of
scalar quantities, line plots, grid and boundary plots, and time-history plots.
MANPLOT reads the SEQUEL-generated data and creates the hard copy plots.

TEMPEST-BNW can be a valuable hydrothermal design analysis
tool in areas outside the intended FBR thermal-hydraulic design community.

### 6. RESTRICTIONS OR LIMITATIONS

Limitations of the current release, identified as
TEMPEST Version L, Mod 3, are as follows: incompressible flow only;
computational cell structure must be in rows/columns/tiers; Cartesian or
cylindrical coordinates only; hydrodynamic solution is explicit in time - no
direct solution for steady-state, pressure boundary conditions are not
available; and curved boundaries (except circular) must be stair-stepped.

### 7. TYPICAL RUNNING TIME

Not stated.

### 8. COMPUTER HARDWARE REQUIREMENTS

MANPLOT uses the proprietary CalComp graphics software, which
is not included. The MANPLOT source, as supplied, is designed for a DEC
VAX11/780.

### 9. COMPUTER SOFTWARE REQUIREMENTS

A Fortran compiler is required.

### 10. REFERENCES

D. S. Trent, L. L. Eyler, and M. J. Budden, *TEMPEST:
A Three-Dimensional Time-Dependent Computer Program for Hydrothermal Analysis, Volume
I: Numerical Methods and Input Instructions*, Pacific Northwest Laboratory
report PNL-4348 Vol. I (September 1983).

D. S. Trent, L. L. Eyler, and M. J. Budden, *TEMPEST: A
Three Dimensional Time-Dependent Computer Program for Hydrothermal Analysis, Volume
II: Assessment and Verification Results*, Pacific Northwest Laboratory
report PNL-4348 Vol. II (September 1983).

L. L. Eyler, “SEQUEL and MANPLOT: Auxiliary Plotting
Programs for the TEMPEST Computer Code,” Pacific Northwest Laboratory
Memorandum, received (December 13, 1983).

### 11. CONTENTS OF CODE PACKAGE

The package contains source code, sample input/output and the
references listed in Section 10 of the
abstract and is transmitted on one CD in a self-extracting compressed file.

### 12. DATE OF ABSTRACT

September 2010.

**KEYWORDS**: CYLINDRICAL GEOMETRY, DIFFUSION THEORY,
FINITE ELEMENT METHOD, FLUID DYNAMICS, HEAT TRANSFER, HYDRODYNAMICS, TIME-DEPENDENT