Error estimation and adaptive order nodal method for solving multidimensional transport problems
Conference
·
OSTI ID:634107
- Bariloche Atomic Center, Rio Negro (Argentina). Instituto Balseiro
- Oak Ridge National Lab., TN (United States)
The authors propose a modification of the Arbitrarily High Order Transport Nodal method whereby they solve each node and each direction using different expansion order. With this feature and a previously proposed a posteriori error estimator they develop an adaptive order scheme to automatically improve the accuracy of the solution of the transport equation. They implemented the modified nodal method, the error estimator and the adaptive order scheme into a discrete-ordinates code for solving monoenergetic, fixed source, isotropic scattering problems in two-dimensional Cartesian geometry. They solve two test problems with large homogeneous regions to test the adaptive order scheme. The results show that using the adaptive process the storage requirements are reduced while preserving the accuracy of the results.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 634107
- Report Number(s):
- ORNL/CP--96525; CONF-980403--; ON: DE98004117
- Country of Publication:
- United States
- Language:
- English
Similar Records
A Posteriori Error Estimation for a Nodal Method in Neutron Transport Calculations
Adaptive order nodal transport method
Adaptive order nodal transport method
Conference
·
Tue Nov 02 23:00:00 EST 1999
·
OSTI ID:11468
Adaptive order nodal transport method
Conference
·
Fri May 01 00:00:00 EDT 1998
·
OSTI ID:672060
Adaptive order nodal transport method
Journal Article
·
Tue Sep 01 00:00:00 EDT 1998
· Transactions of the American Nuclear Society
·
OSTI ID:644259