Download or read book A Space charge flow Computer Program written by Carl D. Bogart and published by . This book was released on 1966 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computer Modeling of Space Charge Flow in an Electrogasdynamic Generator written by and published by . This book was released on 1972 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an electrogasdynamic (EGD) generator the flow of a neutral medium, carrying unipolar electrical charges, constitutes an electrical current. A model of the charge flow in an EGD generator was constructed for use in a computer program. The program is designed to solve Poisson's and Laplace's equations for both axisymmetric and two-dimensional geometries. Schlieren photographs of the charge cloud were used to determine the charge cloud profile required by the program. Computer generated predictions agreed with three known solutions to Poisson's equation. Computer predictions of the effects of space charge flow modifications were obtained. Space charge flow was modified both by increasing flow speed and by manipulating the space charge electric field. Experimentally, this was accomplished by increasing flow stagnation pressure and by application of a separate controllable electric field. Experimental results compare favorably with computer predictions. Some measurements were also made of the mobility range of the charged particles. (Author).
Download or read book NASA Technical Note written by and published by . This book was released on 1971 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computer Modeling of Space Charge Flow in an Electrogasdynamic Generator written by Carl Martin Bohley and published by . This book was released on 1972 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an electrogasdynamic (EGD) generator the flow of a neutral medium, carrying unipolar electrical charges, constitutes an electrical current. A model of the charge flow in an EGD generator was constructed for use in a computer program. The program is designed to solve Poisson's and Laplace's equations for both axisymmetric and two-dimensional geometries. Schlieren photographs of the charge cloud were used to determine the charge cloud profile required by the program. Computer generated predictions agreed with three known solutions to Poisson's equation. Computer predictions of the effects of space charge flow modifications were obtained. Space charge flow was modified both by increasing flow speed and by manipulating the space charge electric field. Experimentally, this was accomplished by increasing flow stagnation pressure and by application of a separate controllable electric field. Experimental results compare favorably with computer predictions. Some measurements were also made of the mobility range of the charged particles. (Author).
Download or read book COMPUTER SIMULATION OF SPACE CHARGE FLOWS written by JACK EDWARD BOERS and published by . This book was released on 1968 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Digital computer programs for the accurate determination of space-charge flows have been developed and are described for several types of electron gun configurations. The effects of space-charge and applied magnetic fields are taken into account and relativistic effects can be included. Direct particle-particle interaction effects are ignored, although d-c thermal effects are given a brief treatment. The computer programs are written in the IBM-7090 FORTRAN programming language and require from four to 15 minutes to execute on an IBM-7090 digital computer. Individual sections of the programs, e.g., trajectory calculations, field evaluations, etc., are shown to be generally within 0.1 percent of theoretical predictions. The overall results are generally within four percent of either theory or experiment. The electrostatic and magnetic convergence and focusing of axially symmetric beams are discussed in detail. A program for the analysis of magnetron injection guns is also described. The importance of cathode edge effects is shown for a crossed electric and magnetic field electron gun configuration. (Author).
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1967-11 with total page 874 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Selected Listing of NASA Scientific and Technical Reports for written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1966 with total page 2088 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration Scientific and Technical Information Division and published by . This book was released on 1967 with total page 2300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computer Program Abstracts written by and published by . This book was released on 1980 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Selected Listing of NASA Scientific and Technical Reports for 1966 written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1967 with total page 2084 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1966 with total page 1336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 984 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Charged Particle Optics written by Jon Orloff and published by CRC Press. This book was released on 2017-12-19 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the growing proliferation of nanotechnologies, powerful imaging technologies are being developed to operate at the sub-nanometer scale. The newest edition of a bestseller, the Handbook of Charged Particle Optics, Second Edition provides essential background information for the design and operation of high resolution focused probe instruments. The book’s unique approach covers both the theoretical and practical knowledge of high resolution probe forming instruments. The second edition features new chapters on aberration correction and applications of gas phase field ionization sources. With the inclusion of additional references to past and present work in the field, this second edition offers perfectly calibrated coverage of the field’s cutting-edge technologies with added insight into how they work. Written by the leading research scientists, the second edition of the Handbook of Charged Particle Optics is a complete guide to understanding, designing, and using high resolution probe instrumentation.
Download or read book Error Analysis of a Numerical Solution to Space Charge Flow Problems written by Stanford University. Microwave Laboratory and published by . This book was released on 1965 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Divergent flow Contact ionization Electrostatic Thrustor for Satellite Attitude Control and Station Keeping written by Walter C. Lathem and published by . This book was released on 1968 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Analysis of Electrostatic Thrustors by a Computer Technique written by Vladimir Hamza and published by . This book was released on 1965 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
