Approximations of Surface Roughness Effects for Airblast Calculations. (2005)
A brief description of roughness effects on a boundary layer is given. The effects of the amount of areal roughness coverage on the law of the wall are summarized. The concept of hydrodynamically...
Investigation of a Reusable Fuel-Air Explosive Nuclear Airblast Simulator. (2002)
Pierce,T. H., Sedgwick,R. T., Groethe,M. A.
Development requirements relating to a reusable, one-kiloton level nuclear airblast simulator using fuel-air explosives is being investigated. The simulator concept is that of a large liquid fuel...
Tunnel Location by Gas Flow. (2002)
Lagus,P. L., Pierce,T. H., Grine,D. R.
Defense Advanced Research Agency (DARPA) has funded a program to improve capabilities to detect existing, hidden tunnels. Systems, Science and Software investigated both the seismic and gas flow...
Fuel-Air Explosive Nuclear Airblast Simulator. Investigation of Secondary Waves. (2002)
The small-scale DNA fuel-air explosives airblast facility (1/4 T nuclear airblast equivalent) was modified to increase pressure and photographic instrumentation. Additional preparations were...
Fuel-Air Explosive Simulation of Far-Field Nuclear Airblasts. (2000)
Pierce, T. H., Sedgwick, R. T.
Fuel-air explosions (FAE) have been investigated in the context of far-field nuclear airblast simulation. The objective of the investigation is to determine the feasibility of a reusable FAE...
CONDENSATION OF METAL VAPOR IN A SUPERSONIC CARRIER GAS. (1998)
Sherman,P. M., McBride,D. D., Chmielewski,T., Pierce,T. H., Oktay,E.
A study of the condensation of metal vapor in an inert carrier gas was made with primary emphasis on the size of the particles formed and the location of the onset of the condensation. Superheated...
Mechanism in the Detonation Regime. (1998)
Nicholls,J. A., Pierce,T. H., Dye,L., Fry,R., Kearney,K.
A vertical detonation tube was used to study the blast initiated detonation of various liquid fuels (organic nitrates and nitro compounds), including some monopropellants, in a few different...
Fuel-Air Explosive Simulation Of Far-Field Nuclear Airblasts. (1979)
Fuel-air explosions (FAE) have been investigated in the context of far-field nuclear airblast simulation. The objective of the investigation is to determine the feasibility of a reusable FAE...
Condensation of zinc vapor in a supersonic carrier gas (1972)
McBride, D. D., Sherman, P. M., Pierce, T. H.
A study of the condensation of a metal vapor in an inert carrier gas is made. Superheated zinc vapor is generated in a hot shot wind tunnel in a helium carrier gas and expanded in a...