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Message Subject DIVINE STRAKE: U.S. MILITARY PLAN TO DETONATE A 700-TON EXPLOSIVE CHARGE JUNE 2ND THAT COULD SEND A MUSHROOM CLOUD OVER LAS VEGAS
Poster Handle BUSH MUST GO
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www.saviac.org/76th_Symposium/Abstracts/L-35.htm [link to www.saviac.org]

Airblast from Underground Explosions

Philip Hookham, Titan Research

Abstract:

Two- and three-dimensional computational fluid and solid dynamics calculations were performed to predict the airblast and dust environment for the DIVINE STRAKE high explosive field test. The DIVINE STRAKE test is planned to be a large-yield, buried burst detonated at the Nevada Test Site. The early-time airblast, crater formation, and ejecta environment were calculated using the two-dimensional CRALE code. This solution was then overlayed onto two- and three-dimensional MAZe code computational meshes. The MAZe calculations simulated the airblast environment as well as the propagation of the dusty environment produced by the ejecta and subsequent dust sweep-up. The airblast environment will be compared to test measurements when they become available, while the predicted dust environment will be used to aid in planning of the test.


www.saviac.org/76th_Symposium/Abstracts/L-33.htm [link to www.saviac.org]

Non Ideal Airblast Effects from Urban and Natural Terrain

Joe Crepeau, Charles Needham, ARA

Abstract:

Non-ideal airblast is produced from detonations over urban and natural terrain. Mechanical effects of a blast wave reflecting off non-ideal surfaces produces shielding and channeling effects that may be considerably different than those from a detonation over an ideal surface. Work in the area non-ideal airblast generated from urban and natural terrain is presented.

Divine Strake is a high-explosive (HE) test sponsored by the Defense Threat Reduction Agency (DTRA) and is scheduled for the summer of 2006 at the Nevada Test Site (NTS). The test is a detonation of a 700 ton buried heavy AN/FO charge above a tunnel structure. The main purpose of the test is to study ground shock effects on deeply buried tunnel structures. Of secondary interest is the airblast produced by a buried charge and its modification as it propagates over the local terrain.

Sandia National Laboratory (SNL) recently sponsored a number of computational fluid dynamics (CFD) airblast calculations of the upcoming event. SNL contracted Applied Research Associates, Inc. (ARA) to perform two- and three-dimensional (2D and 3D) predictive airblast calculations for the test. The CFD calculations were run with SHAMRC and characterize the airblast environments induced by the non-ideal charge configuration and the surrounding terrain. They include 2D calculations with and without terrain and with a responding and non-responding ground model. A single 3D calculation with a non-responding ground model was also completed. Results of the calculations provide test planners with environments that can be expected at instrumentation and test structure locationS. A single, 3D calculation with a realistic ground model is planned once the charge and detonation site details are finalized.

ARA has also completed several SHAMRC calculations investigating non-ideal airblast over urban and natural terrain under a contract with DTRA for the Near Surface Weapons Effects Tools – 3D (NSWET-3D), Airblast/Thermal task. One set of calculations modeled a nuclear detonation in New York City. The buildings were generated automatically from ArcView shapefiles, placed on a flat ground surface, and modeled as non-responding. One of these calculations was run under the Capability Applications Project (CAP) sponsored by the Department of Defense (DoD) High Performance Computing Modernization Program (HPCMP). Another set of calculations modeled the Smoky nuclear event at NTS. The calculations included models of natural terrain, thermal heating of the terrain surface, and dust sweep-up from the surface.


'BUSINESS OPPORTUNITIES'?

herbb.hanscom.af.mil/esc_opps.asp?rfp=EBO [link to herbb.hanscom.af.mil]


AND THE WINNER IS...

SOUTHERN METHODIST UNIVERSITY IN DALLAS, TX...

herbb.hanscom.af.mil/tbbs/EBO/031606.txt [link to herbb.hanscom.af.mil]

<AWARD>
<DATE>0316
<YEAR>06
<CLASSCOD>A
<OFFADD>ESC/PKR, R&D Contracting, 104 Barksdale, Hanscom AFB, MA
01731-1806
<ZIP>01731-1806
<SUBJECT>A -- TO GATHER THE UNIQUE OBSERVATIONAL SEISMO-ACOUSTIC DATA FROM
A TIME SENSITIVE EXPLOSION AT THE NEVADA TEST SITE (NTS), DIVINE STRAKE.
<CONTACT>Kiel Anderson, Contract Specialist, kiel.anderson@hanscom.af.mil;
Janet Maille, Contracting Officer, (781) 377-2930
<AWDNBR>FA8718-06-C-0028
<AWDAMT>$301,925.00
<LINENBR>N/A
<AWDDATE>03160​6
<AWARDEE>Southern Methodist University,
6425 Boaz Lane,
Dallas TX 75205-6312
<ARCHDATE>
<LINK>
<URL>www.herbb.hanscom.af.mil [link to www.herbb.hanscom.af.mil]
<DESC>ESC Business Opportunities Web Page
<EMAIL>
<ADDRESS>kiel.anderson@hanscom.af.mil
<DESC>Click Here to E-mail the POC
</AWARD>


E2006-222 DEA for a large-scale open-air explosive detonation "DIVINE STRAKE" at the Nevada Test Site. [PDF]

budget.state.nv.us/clearinghouse/Notice/2006/E2006-222.pdf [link to budget.state.nv.us]


[PDF] NEPA Lessons Learned, September 2005
File Format: PDF/Adobe Acrobat - View as HTML
EA for Divine Strake, A Large-Scale. Open-Air Explosive Detonation. at the Nevada Test Site.

www.eh.doe.gov/nepa/process/ll/LLQR_sep2005.pdf [link to www.eh.doe.gov]

View as HTML: [link to 72.14.203.104]


LANL | Earth and Environmental Sciences Division (EES) | News Archive

The Test Working Group discussed updates on Discrete Gemini (Intermediate Scale Test) and Divine Strake (Full-scale Test). In the Site Characterization ...

www.ees.lanl.gov/news/archive_jan_mar_2004.shtml [link to www.ees.lanl.gov]


LANL | Earth and Environmental Sciences Division (EES) | News Archive

... property information into 3-d geologic models to be used in ground shock modeling with special emphasis on the upcoming Divine Strake experiment at NTS.

www.ees.lanl.gov/news/archive_july_sep_2005.shtml [link to www.ees.lanl.gov]

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