Standard Benchmarking Exercise Problems - SBEPs

Standard Benchmark Exercise Problems

Objectives

• Establish a framework for validation of codes and models for simulation of problems relevant to hydrogen safety
• Identification of the main priority areas for the further development of the codes

Description of work

Code application simulations will be performed by partners in order to reproduce experimental data. Existing data will be used to start this activity. Relevant cases for SBEPs will be selected by review available data. Comparative assessments of code performance will be given and directions towards further development will be identified. The experiments for SBEP will be selected using criteria, which will be based on the relevance to Hydrogen Safety of the phenomena explored in the tests, the availability and feasibility of the data and their possibility to be used for validating mainly CFD codes. Different codes and models (see Appendix A) will be assessed by the partners involved. These tools will cover the different approaches used in each phenomenon, i.e. integral, CFD (1D to 3D), in-house, commercial both specific and multi-purpose. Benchmarking exercises should therefore benefit from the complementarities arising from the variety of codes, models, approaches, user experience and points of view from industry and research agents. Quality and suitability of codes, models and user practises will be identified by comparative assessments of code results, which constitute the essentials of the SBEPs. Directives towards further development and recommendation for optimal tools and user best practises for phenomena and approaches will be provided.

SBEP(s) for years 2006 - 2007:

SBEP on hydrogen release and mixing

V4 FZK jet experiment
V5 GexCon D27 (see WP3.1_v0.1.doc Benchmarks for evaluation of CFD codes)
V6 Extended SBEP: BAM experiments with LH2

SBEP on hydrogen fires or explosions

V7 Shell experiments
V8 Tube with venting
V9 Extended SBEP: DDT from FhICT