# VENTURE: a code block for solving multigroup neutronics problems applying the finite-difference diffusion-theory approximation to neutron transport

## Abstract

The computer code block VENTURE, designed to solve multigroup neutronics problems with application of the finite-difference diffusion-theory approximation to neutron transport (or alternatively simple P$sub 1$) in up to three- dimensional geometry is described. A variety of types of problems may be solved: the usual eigenvalue problem, a direct criticality search on the buckling, on a reciprocal velocity absorber (prompt mode), or on nuclide concentrations, or an indirect criticality search on nuclide concentrations, or on dimensions. First- order perturbation analysis capability is available at the macroscopic cross section level. (auth)

- Authors:

- Publication Date:

- Research Org.:
- Oak Ridge National Lab., Tenn. (USA)

- OSTI Identifier:
- 4158202

- Report Number(s):
- ORNL-5062

- NSA Number:
- NSA-33-006854

- DOE Contract Number:
- W-7405-ENG-26

- Resource Type:
- Technical Report

- Resource Relation:
- Other Information: Orig. Receipt Date: 30-JUN-76

- Country of Publication:
- United States

- Language:
- English

- Subject:
- N79100* -Reactors-Reactor Theory & Calculation; 220100* -Nuclear Reactor Technology-Theory & Calculation; *COMPUTER CODES- V CODES; *REACTOR KINETICS- NEUTRON TRANSPORT THEORY; CRITICALITY; EIGENVALUES; FINITE DIFFERENCE METHOD; NEUTRON DIFFUSION EQUATION

### Citation Formats

```
Vondy, D.R., Fowler, T.B., and Cunningham, G.W..
```*VENTURE: a code block for solving multigroup neutronics problems applying the finite-difference diffusion-theory approximation to neutron transport*. United States: N. p., 1975.
Web. doi:10.2172/4158202.

```
Vondy, D.R., Fowler, T.B., & Cunningham, G.W..
```*VENTURE: a code block for solving multigroup neutronics problems applying the finite-difference diffusion-theory approximation to neutron transport*. United States. doi:10.2172/4158202.

```
Vondy, D.R., Fowler, T.B., and Cunningham, G.W.. Wed .
"VENTURE: a code block for solving multigroup neutronics problems applying the finite-difference diffusion-theory approximation to neutron transport". United States. doi:10.2172/4158202. https://www.osti.gov/servlets/purl/4158202.
```

```
@article{osti_4158202,
```

title = {VENTURE: a code block for solving multigroup neutronics problems applying the finite-difference diffusion-theory approximation to neutron transport},

author = {Vondy, D.R. and Fowler, T.B. and Cunningham, G.W.},

abstractNote = {The computer code block VENTURE, designed to solve multigroup neutronics problems with application of the finite-difference diffusion-theory approximation to neutron transport (or alternatively simple P$sub 1$) in up to three- dimensional geometry is described. A variety of types of problems may be solved: the usual eigenvalue problem, a direct criticality search on the buckling, on a reciprocal velocity absorber (prompt mode), or on nuclide concentrations, or an indirect criticality search on nuclide concentrations, or on dimensions. First- order perturbation analysis capability is available at the macroscopic cross section level. (auth)},

doi = {10.2172/4158202},

journal = {},

number = ,

volume = ,

place = {United States},

year = {1975},

month = {10}

}

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