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Saturday, November 14, 2020 | History

2 edition of Experimental and analytic studies of triggered lightning environment of the F106B found in the catalog.

Experimental and analytic studies of triggered lightning environment of the F106B

Experimental and analytic studies of triggered lightning environment of the F106B

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  • 28 Currently reading

Published by National Aeronautics and Space Administration, Scientific and Technical Information Division, For sale by the National Technical Information Service] in [Washington, DC], [Springfield, Va .
Written in English

    Subjects:
  • Meteorology in aeronautics.,
  • Weather forecasting.,
  • Lightning -- Mathematical models.

  • Edition Notes

    StatementTerence Rudolph ... [et al.].
    SeriesNASA contractor report -- 4104., NASA contractor report -- NASA CR-4104.
    ContributionsRudolph, Terence., United States. National Aeronautics and Space Administration. Scientific and Technical Information Division.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17659785M

    Testing of the LIOV-EMTP96 Code for Computing Lightning-Induced Currents on Real Distribution Lines: Triggered-Lightning ExperimentsCited by: Bibliography of Research on Parameters of Lightning Strokes Task Force on Parameters of Lightning Strokes Lightning and Insulator Subcommittee of the T & D Committee (Rev. 5, 1/01) T.E. Allibone, "Velocities of Leader-Strokes to Lightning and Spark Discharges", Journal of The Franklin Institute, Vol. , No. 1, pp. , July Since existing thunderstorms can be monitored with the field mill, radar, and lightning detection net- works, the three problems that require attention are (1) the onset of lightning in developing thunderstorms, (2) the continuation of lightning in decaying thunderstorms or detached anvils, and (3) the threat of triggered lightning in. Life on Earth began due to volcanic activity. Volcanoes released gases and water from the molten Earth. Algae developed in that early ocean eventually led to the modern oxygen-rich atmosphere and more complex life forms. Other benefits of volcanoes include rich soil, new land and mineral resources.


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Experimental and analytic studies of triggered lightning environment of the F106B Download PDF EPUB FB2

Get this from a library. Experimental and analytic studies of triggered lightning environment of the FB. [Terence Rudolph; United States. National Aeronautics and Space Administration. Scientific and Technical Information Division.;]. AIREX: Experimental and analytic studies of the triggered lightning environment of the FB The triggered lightning environment of the FB aircraft is investigated.

Scale modeling of the FB with a metallized model was done to measure electric field enhancement factors on the aircraft and on canonically shaped conducting objects.

The goal of the FB Thunderstorm Research Program is to characterize the lightning environment for aircraft in flight. This report describes the application of numerical electromagnetic models. and dI/dt sensors with ranges set for a large lightning flash at a distance of 35 km.

The environment of the aircraft was surveyed with a digital onboard weather radar and an onboard lightning detector. Aircraft instrumentation for direct lightning strike studies Four aircraft have been instrumented specifically for direct lightning strike studies. Lightning represents a natural phenomenon of substantial interest.

Due to its complex nature, research continues in many countries and reveals amazing results. Lightning is actively observed because of its relevance to Earth climate and air composition in addition to the classical aspects of. The CV data was investigated in a mostly qualitative sense, while the FB data was subjected to both statistical and quantitative analysis using linear triggered lightning finite difference Author: Daniele Biron.

The results show that the five triggered lightning flashes include 1 to 10 return strokes, and the average return stroke current is kA with a maximum of kA and a minimum of kA, similar to the subsequent return strokes in natural by: Much of our knowledge of aircraft-triggered lightning is based on the data gathered by four major instrumented aircraft campaigns [5, 6]: the Rough Rider project, involving an FF (Air Force.

Arc reattachment driven by a turbulent boundary layer: implications for the sweeping of lightning arcs along aircraft C.

Guerra-Garcia, N. Nguyen, J. Peraire, M. Martinez-Sanchez. The analysis of airborne electromagnetic records of seven lightning strikes to the FAA CV instrumented airplane during the field campaign and eleven strikes to the French C. Introduction `Classical' rocket-triggered lightning (St.

Privat D'Allier Group, ) is initiated by a small rocket towing a grounded wire aloft under a rocket-and-wire technique of triggering lightning was pioneered by Newman ()and Newman et al.

().The key to its success is likely an observation by Brook et al. ()that the sufficiently rapid introduction of a Cited by: damage. In the paper, the experimental set-up is introduced in section 2. Then, the experimental results caused by different lightning current components are presented in section 3.

Finally, the damage morphology of metal and the relationship between damage results and lightning parameters are analyzed in section 4. Experimental set-up Cited by: 2. In the Italian Air Force Meteorological Service has set up a modern lightning detection network, LAMPINET, in order to monitor comprehensively atmospheric discharges.

Perala R.A., Experimental and analytic studies of the triggered lightning environment of the FB, NASA CR () Cited by: 3. This study investigates an abnormal artificially triggered lightning event that produced two positive upward propagations: one during the initial stage (i.e., the upward leader (UL)) and the other after a negative downward aborted leader (DAL).

The triggered lightning was induced in a weak thunderstorm over the experiment site and did not produce a return stroke. All of the intra-cloud Cited by: 3. A lightning strike to an unprotected object or system can be disastrous - in the United States lightning is responsible for over 30% of all electric power failures, causes billions of dollars' worth of property damage, and an average of 85 fatalities a by: Analytical Experimental Physics Hardcover – January 1, by Michael Jr.

& Harvey B. Lemon and Reginald J. Stephenson Ference (Author) See all 4 formats and editions Hide other formats and editions. Price New from Used from Author: Michael Jr. & Harvey B. Lemon and Reginald J. Stephenson Ference. a multiple-station experiment to examine the close electromagnetic environment of natural and triggered lightning by jason e.

jerauld a thesis presented to the graduate school of the university of florida in partial fulfillment of the requirements for the degree of master of science university of florida copyright by jason e.

jerauld. The second approach is to study the lightning characteristics of wind turbines by testing a reduced-scale model. Researchers in Ref. reduced the main components of a 2 MW wind turbine in the ratio of to study the lightning attachment zones. This approach helps to simplify the experiment but the results of a scaled model may not fully Cited by: 7.

Experimental Form Factors for the FB for Finite Cylinder 5 ANALYSIS OF THE CV IN-FLIGHT LIGHTNING DATA Introduction Terminology General Comments Initial Responses Multiple Surges Continuing Current Sizes Type of Channel 0 4   Design and Analysis of Experiments, Volume 1, Second Edition is an ideal textbook for first-year graduate courses in experimental design and also serves as a practical, hands-on reference for statisticians and researchers across a wide array of subject areas, including biological sciences, engineering, medicine, pharmacology, psychology, and Reviews: 1.

An experimental study of leaders initiated by single and advanced (ESE) lightning rods Triggering site of Cachoeira Paulista (SP) Brazil. -Bérard1, n2, z3, 4, ano4 1: Commissariat à l’Energie Atomique (CEA) Grenoble France 2: Institut Supérieur d’Electronique du Nord (ISEN), Lille France.

The bibliography and the review dealt with: (1) behavior of air gaps under nonstandard lightning voltages, (2) generation of fast-front voltage waves, and (3) measurement of fast-front voltage waves.

nonlinear triggered lightning parameter study response of the fb aircraft to a high current lightning strike response of aircraft other than the fb to triggered lightning enhanced nonlinear air breakdown modeling subgrid development and application the effect of finite difference grid resolution on field enhancements subgrid application thunderstorm environment for in-flight.

R c in CaMg(SiO 3) 2 was calculated to be ~ nm by taking the values of V, x c, and N as nm 3,and 4, respectively, from experimental and analytical evaluations. The interaction type was proposed by Dexter [47] when x > x c [48], [49]: (5) l o g (I x) ∝ − θ 3 l o g (x) where I is the emission intensity and θ is a Cited by: 9.

a multiple-station experiment to examine the close electromagnetic environment of natural and triggered lightning by jason e. jerauld a thesis presented to the graduate school of the university of florida in partial fulfillment of the requirements for the degree.

Lightning protection equipment for overhead contact line system is installed by a lightning protection map based on IKL (isokeraunic level). The IKL was created by data observed over 50 years ago, so we are planning to revise the lightning protection map.

A new lightning protection map is created by data observed from to rents [25]. Thus the triggered lightning are much more like the ground-to-cloud lightning. Trying to avoid this shortcoming in the newest ex-periments of the initiated lightning the so-called alti-tude triggered method is used [40].

The rocket pulls up a part of the metal wire a few hundreds of meters long (not connected to the ground). The most frequent question encountered in the long history of the study of ball lightning is not how the ball is formed or what its properties are, controversial as these problems may be.

It is, rather, whether ball lightning really : Stanley Singer. the analysis of the mechanisms of radome protection with lightning diverters of various types and sizes.

A high voltage arrangement and associated diagnostics have been implemented to perform a quantitative study of the inception and propagation mechanisms of the corona and leader discharges that precede the final breakdown.

Lightning Physics and Effects Lightning: Physics and Effects is the first book that covers essen-tially all aspects of lightning, including lightning physics, light-ning protection, and the interaction of lightning with a variety of objects and systems as well as with the environment.

It is writ. IEEE Trans. on Magnetics, ,29(2): ~ 3. Hidetaka Satoh. Study on increasing the surge capability of a lightning surge protection semiconductor device.

IEEE Trans. on EMC, ,35(2): ~ 4. Marcos Rubinstein, Martin A Uman, Pedro J Medelius, etc. Measurements of the voltage induced on an overhead power line 20m from triggered Author: Yongwei Sun, Bihua Zhou, Guanghui Wei, Ming Wei.

4 3 2 1 book. Read 2, reviews from the world's largest community for readers. Astonishing, a masterpiece, Paul Auster’s greatest, most satisfying, mos /5(K). The Battle of Lepanto was a naval engagement taking place on 7 October in which a fleet of the Holy League, a coalition of European Catholic maritime states arranged by Pope Pius V and led by Spanish admiral Don Juan of Austria, decisively defeated the fleet of the Ottoman Empire on the northern edge of the Gulf of Corinth, off western Ottoman forces sailing westwards from.

The energy (E) released by the electric arc is the time integral of the power associate to the electric arc over the total duration of the the voltage drop is assumed constant, this becomes equal to the voltage drop multiplied by the electric charge (1) E = ∫ W d t = ∫ u a, c i d t = u a, c ∫ i d t = u a, c Q where t is time and Q is the electric charge of the by:   New Investigations of the Mechanisms of Lightning Strike to Radomes Part I: Experimental Study in High Voltage Laboratory The main purpose of the experiments described here is the analysis of the mechanisms of radome protection with lightning diverters of various types and : A.

Ulmann, P. Brechet, A. Bondiou-Clergerie, A. Delannoy, P. Lalande, P. Blanchet, P. Laroche, E. Interpretation Methodology and Analysis of In-Flight Lightning Data previous understanding of the lightning environment [4].

A second set of reasons has to do with aircraft techno- logy. New and existing aircraft are being made out of advanced by instrumenting an FB aircraft and penetrating thunderstorms with the. These waveshapes, especially shot-term pulses, are approximated with a few mathematical functions in literature, in order to be used in lightning discharge models for calculations of electromagnetic field and lightning induced effects.

An analytically extended function (AEF) is presented in this paper and used for lightning currents : Karl Lundengård, Milica Rančić, Vesna Javor, Sergei Silvestrov.

“A New Approach to Estimation of Effective Height of Towers on Mountain Tops for Lightning Incidence Studies: Sensitivity Analysis”, Proc. of X International Symposium on Lightning Protection (X SIPDA), Curitiba, Brazil, November, pp. (also pp. in the Book of Extended Abstracts), H.

Zhou, N. Theethayi, G. An experimental design that uses a random process to assign subjects (test units) to treatment levels to investigate the effects of an experimental variable. Randomized Block Design An extension of the completely randomized design in which a single categorical extraneous variable that might affect test units' responses to the treatment is.

Numerical field expressions are proposed to evaluate the electromagnetic fields due to the lightning channel with variable values of return stroke velocity. Previous calculation methods generally use an average value for the return stroke velocity along a lightning channel.

The proposed method can support different velocity profiles along a lightning channel in addition to the widely used Cited by: 1. Nationally, new cases of COVID are down 11 percent in the last week but hotspots are emerging in some southern and western states, according to a Reuters analysis.Analytical Experimental Physics (Third Revised Edition) [Ference, Michael, Jr., Harvey B.

Lemon & Reginald J. Stephenson] on *FREE* shipping on qualifying offers. Analytical Experimental Physics (Third Revised Edition)Author: Harvey B. Lemon & Reginald J. Stephenson Ference, Michael, Jr.Analysis of ELF Radio Atmospherics Radiated by Rocket-Triggered Lightning, Abstract AE31B, Paper NumberThunderstorm Effects in the Near-Earth Space Environment to be presented at Fall Meeting, AGU, San Francisco, CA., December, Neal A.

Dupree, Robert C. Moore, John I. Pilkey, Douglas M. Jordan, and Martin A. Uman.