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Final Technical Report for “A Heliportable Sonic Drilling Platform for Microhole Drilling and Exploration”

Description: The Phase I objectives were fully achieved the execution of a program that included the: • Development of a comprehensive model of the sonic drill technology and interaction of the dynamic drilling parameters with the impedance of the earth. • Operation and measurement of the sonic drilling process in the field at full scale. • Comparison of the analytical and experimental results to form an objective and quantified approach to describe the fundamental phenomena and to develop a methodology for… more
Date: May 5, 2008
Creator: Lucon, Peter
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Laser Fusion: The First Ten Years 1962-1972

Description: This account of the beginning of the program on laser fusion at Livermore in 1962, and its subsequent development during the decade ending in 1972, was originally prepared as a contribution to the January 1991 symposium 'Achievements in Physics' honoring Professor Keith Brueckner upon his retirement from the University of San Diego at La Jolla. It is a personal recollection of work at Livermore from my vantage point as its scientific leader, and of events elsewhere that I thought significant. T… more
Date: June 25, 2004
Creator: Kidder, R. E.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
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GLIMM'S METHOD FOR GAS DYNAMICS

Description: We investigate Glimm's method, a method for constructing approximate solutions to systems of hyperbolic conservation laws in one space variable by sampling explicit wave solutions. It is extended to several space variables by operator splitting. We consider two functional problems. 1) We propose a highly accurate form of the sampling procedure, in one space variable, based on the van der Corput sampling sequence. We test the improved sampling procedure numerically in the case of inviscid c… more
Date: July 1, 1980
Creator: Colella, Phillip
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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NUMERICAL MODELING OF TURBULENT FLOW IN A COMBUSTION TUNNEL

Description: A numerical technique for the analysis of turbulent flow associated with combustion is presented, The technique utilizes Chorin's RVM (Random Vortex Method), an algorithm capable of tracing the action of elementary turbulent eddies and their cumulative effects without imposing any restriction upon their motion. In the past RVM has been used with success to treat non-reacting turbulent flows, revealing, in particular, the mechanics of large scale flow patterns, the so-called coherent struct… more
Date: September 1, 1980
Creator: Ghoniem, A. F.; Chorin, A. J. & Oppenheim, A. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analytic solutions of an unclassified artifact /

Description: This report provides the technical detail for analytic solutions for the inner and outer profiles of the unclassified CMM Test Artifact (LANL Part Number 157Y-700373, 5/03/2001) in terms of radius and polar angle. Furthermore, analytic solutions are derived for the legacy Sheffield measurement hardware, also in terms of radius and polar angle, using part coordinates, i.e., relative to the analytic profile solutions obtained. The purpose of this work is to determine the exact solution for the “c… more
Date: March 1, 2012
Creator: Trent, Bruce C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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