Use of CFD in Evaluating Blast Overpressures for Onshore Facility Siting Studies Paper
« All Publications

Facility siting studies conducted to satisfy Process Safety Management regulations (e.g., OSHA 1910, Seveso-II, API RP-752, etc.) traditionally use analytical 2-D consequence modeling (e.g., PHAST, TRACE, etc.), often in conjunction with a simplified blast load assessment (e.g., CAM2, MEM, BST).

Output from these blast overpressure consequence simulations, form the input basis in structural response modeling. In contrast, purely analytical consequence and blast assessment methodologies used in the offshore industry have evolved to produce more realistic 3-D structural responses by incorporating computational fluid dynamics (CFD) modeling. With current computational processing speeds and software user flexibility, an onshore facility siting incorporating CFD analysis requires little more resources than using only analytical tools. This paper presents examples illustrating how using CFD consequence modeling often avoids unnecessary upgrades to buildings which would be recommended using strictly 2-D analytical modeling tools. This paper illustrates how CFD can address other limiting factors (e.g., obstacles, mitigation measures, and deflagration-to-detonation between potential explosion zones) to produce more realistic facility siting simulations.

Publication Summary

  • Geosyntec Authors: Morgan Reed, Irfan Shaikh, Eric Peterson
  • All Authors: Morgan Reed , Irfan Shaikh , Eric Peterson ,
  • Title: Use of CFD in Evaluating Blast Overpressures for Onshore Facility Siting Studies Paper
  • Event or Publication: Mary Kay O'Connor Process Safety Center's 14th Annual Symposium
  • Practice Areas: Risk Management, Analysis and Simulation
  • Date: 2012
  • Location: College Station, Texas