a new m&s tool to supplant decontamination testing: the ... · depm – slide 1 approved for...
TRANSCRIPT
DEPM – Slide 1Approved for public release; Distribution unlimited
A New M&S Tool to Supplant Decontamination Testing:The Decontamination Efficacy Prediction Model (DEPM)
January 11th, 2007
2007 NDIA Chemical and Biological Information Systems Conference
Austin, Texas
Test Technology Division
West Desert Test Center,
U.S. Army Dugway Proving Ground
DEPM – Slide 2
Approved for public release; Distribution unlimited
AuthorsLeonard N. Carter, PhD, WDTC Program Manager for Future
Combat Systems M&S, 435-831-5131 (DSN 789-5131), [email protected]&S Branch, Test Technology Division,West Desert Test Center (WD-TT-S)U.S. Army Dugway Proving GroundDugway, Utah 84022-5000
Ted Hayes, Senior Software Engineer,937-476-2181, [email protected] Dynamics Information Technology5100 Springfield St, Suite 504Dayton, Ohio 45431-1261
DEPM – Slide 3
Approved for public release; Distribution unlimited
Briefing Outline
History/BackgroundModel Structure
Key Object ClassesKey Objects
Agent Flow DiagramsContamination & Aging PhaseDecon PhaseResidual Hazard Phase
Questions?
DEPM – Slide 4Approved for public release; Distribution unlimited
History/Background
DEPM – Slide 5
Approved for public release; Distribution unlimited
Historical Background
Initiated in 2003 as the Equipment Contamination Initiated in 2003 as the Equipment Contamination Survivability Tool (ECS), funded by the VPG ProgramSurvivability Tool (ECS), funded by the VPG ProgramInitial phase was survey of existing models and databasesInitial phase was survey of existing models and databasesIn 2005 Anteon Corp. was selected to begin model designIn 2005 Anteon Corp. was selected to begin model designProofProof--ofof--principle prototype principle prototype demodemo’’eded in Sep. 2005 at DPGin Sep. 2005 at DPGWith VPG termination in 2006, project is now funded by With VPG termination in 2006, project is now funded by DTRA, with ECBC performing live agent testingDTRA, with ECBC performing live agent testingModeling effort now focused on simulating coupon testing Modeling effort now focused on simulating coupon testing of various materials in a chamber environmentof various materials in a chamber environmentModel renamed to Model renamed to DeconDecon Efficacy Prediction Model to Efficacy Prediction Model to reflect new focus; Anteon now part of GDITreflect new focus; Anteon now part of GDIT
DEPM – Slide 6
Approved for public release; Distribution unlimited
What is the Decontamination Efficacy Prediction Model (DEPM)?
The DEPM is a software tool that will simulate The DEPM is a software tool that will simulate the contamination/aging/decontamination of the contamination/aging/decontamination of material itemsmaterial itemsUsable model prototype to be ready early 2007Usable model prototype to be ready early 2007Provides a Provides a ““Virtual ChamberVirtual Chamber”” to subject to subject simulated items to the four key phases:simulated items to the four key phases:
ContaminationContaminationAgingAgingDecontaminationDecontaminationResidual HazardResidual Hazard
DEPM – Slide 7
Approved for public release; Distribution unlimited
Potential Benefits of the DEPM
Not meant to replace all laboratory tests – will complementAllows paring down of live testing case matricesAllows a wider spectrum of contamination and environmental conditions to be exploredProvides a platform to test complex items or collections of items – testing not generally possible in chambers with live agent
DEPM – Slide 8Approved for public release; Distribution unlimited
Model Structure
DEPM – Slide 9
Approved for public release; Distribution unlimited
DEPM Model Structure
DEPM Control Interface
Core Simulation Executive
Simulation Support Tools
Output Analysis
Tools
InputDatabaseEditors
DEPM – Slide 10
Approved for public release; Distribution unlimited
Key Object Classes (Generalized)
Agent
Stores
Agent
Sinks
Surface
Boundaries
Intermingled
Volumes
Transfer Events
Mass Transfer
Phase Transition
Reaction Process
Nodes
Boundaries
Transfer Processes
Decontaminant
Store
DEPM – Slide 11
Approved for public release; Distribution unlimited
Stores and Sinks Object Classes
Agent
Stores
Agent
Sinks
Nodes
Decontaminant
Store
• Objects of these classes “contain” quantity of agent or decontaminant
• Mass can transfer into or out of Stores
• Mass can only transfer into Sinks
• A store is assumed to be of homogenous material
• Key Object Attributes:
Current Mass (units:mass)
Rate of Change (units:mass/unit time)
DEPM – Slide 12
Approved for public release; Distribution unlimited
Transfer Event Object Classes
• Transfer Events Objects are used to represent the transfer of agent mass into or out of a store/sink that is assumed to occur at a discrete point in time (rather then over a period of time)
• Key Object Attributes:
Varies by Specific Object
Typically: mass, percent/fraction transferred, etc.
Transfer Events
DEPM – Slide 13
Approved for public release; Distribution unlimited
Boundary Object Classes• Boundary Objects
represent the “boundary” between agent stores/sinks
• These objects work with Transfer Process Objects to represent the flow of agent from store to store/sink
• “Intermingled Volumes” are used to represent the boundary between agent/ decontaminant stores that occupy the same “space” – typically used with reaction processes
• Key Surface Object Attributes:
Surface Area (units: area)• Key Volume Object Attributes:
Volume (units: volume)
Surface
Boundaries
Intermingled
Volumes
Boundaries
DEPM – Slide 14
Approved for public release; Distribution unlimited
Transfer Object Classes
• Transfer Objects work with Boundary Objects to represent the transfer/ transformation of agent mass between stores and sinks Mass
TransferPhase
TransitionReaction
Processes
Transfer Processes
DEPM – Slide 15Approved for public release; Distribution unlimited
Agent Flow Diagrams
DEPM – Slide 16
Approved for public release; Distribution unlimited
Agent Flow Diagrams
The following slides show the general flow of agent mass from store to store/sink via boundaries using various transfer processes
Agent
Decontaminant
Reaction Product
DEPM – Slide 17
Approved for public release; Distribution unlimited
Phases Represented in Simulation
Contamination & AgingDecontamination
Physical RemovalVapor – Vapor DeconSurface DeconSubstrate Penetration Decon
Residual HazardResidual EvaporationContact Hazard
DEPM – Slide 18
Approved for public release; Distribution unlimited
Agent Flow: Contamination & Aging Phase
Test Fixture VaporAgent Store
Drop Placement Transfer Event
Reaction ProductAgent Sink
Surface AdsorbedAgent Store
Liquid – Vapor BoundarySurface Evaporation
Phase Transition Process
Liquid – Substrate BoundarySubstrate Absorption/
Diffusion Transfer Process
Substrate AbsorbedAgent Store
Agent – Substrate Absorbed Volume
Substrate-Agent Reaction Process
DEPM – Slide 19
Approved for public release; Distribution unlimited
Agent Flow: Decontamination Phase (Physical Removal)
Surface AdsorbedAgent Store
Decon Wipe Transfer Event
Evaporation
Substrate Absorption/Diffusion
DEPM – Slide 20
Approved for public release; Distribution unlimited
Agent Flow: Decontamination Phase (Vapor - Vapor Decon)
Reaction ProductAgent Sink
Evaporation
Surface AdsorbedAgent Store
Test Fixture VolumeDecon Vapor - Vapor
Agent Reaction Process
Vapor DeconStore
Test Fixture VaporAgent Store
DEPM – Slide 21
Approved for public release; Distribution unlimited
Agent Flow: Decontamination Phase (Surface Decon)
Substrate Absorption/Diffusion
Reaction ProductAgent Sink
Reaction ProductAgent Sink
Evaporation
Surface AdsorbedAgent Store Surface Decon
Liquid Store
Liquid – Surface Agent VolumeDecon Liquid - Liquid
Agent Reaction Process
Vapor DeconStore
Liquid – Vapor BoundaryDecon Vapor - Liquid
Agent Reaction Process
DEPM – Slide 22
Approved for public release; Distribution unlimited
Agent Flow: Decontamination Phase (Substrate Penetration Decon)
Reaction ProductAgent Sink
Surface AdsorbedAgent Store
Surface DeconLiquid Store
Liquid – Substrate BoundaryDecon Liquid – Substrate
Penetration/Absoption ProcessSubstrate Absorption/Diffusion
Substrate AbsorbedAgent Store
Absorbed Decon - Absorbed Agent Reaction Process
Absorbed DeconLiquid Store
DEPM – Slide 23
Approved for public release; Distribution unlimited
Agent Flow: Residual Hazard Phase
Test Fixture VaporAgent Store
Surface AdsorbedAgent Store
Surface Contact BoundarySurface Contact Transfer
Process
Surface Liquid – Substrate Boundary
Surface Contact InducedSubstrate Diffusion Process
Substrate AbsorbedAgent Store
Contact HazardAgent Store
(dental dam)
Test Fixture VaporAgent Store
Evaporation
DEPM – Slide 24
Approved for public release; Distribution unlimited
In Summary
ProofProof--ofof--Principle Prototype (as the ECS Model) Principle Prototype (as the ECS Model) has been completed and demonstrated at end of has been completed and demonstrated at end of FY05FY05Current development effort is projected to reach Current development effort is projected to reach limited decontamination efficacy prediction limited decontamination efficacy prediction capability by early CY07capability by early CY07Incorporation of more detailed and advanced Incorporation of more detailed and advanced functionality will continue in FY07 to allow for functionality will continue in FY07 to allow for more realistic simulations of live agent coupon more realistic simulations of live agent coupon contamination, aging, and decontamination, the contamination, aging, and decontamination, the level of effort commensurate with fundinglevel of effort commensurate with funding
DEPM – Slide 25Approved for public release; Distribution unlimited
Questions?