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APPROXIMATE ESTIMATION OF ELCCTROMAGNETIC PULSE PRODUCED IN ATOMOSPHERE UNDER CONDITION OF NUCLEAR AIRBURST
Wang Tai-chun, Wang Yu-zhi
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS    1987, 4 (2): 189-196.  
Abstract265)      PDF (456KB)(992)      
In this paper approximate analitical formula of current and electronic rield produced by prompt-γ photons are derived under the condition of nuclear airburst.Calculational results from those formula showed that forward position, gradient, peak value and half width of electronic field mainly depend on intensity and time behavior of prompt-γ photons released from nuclear device.
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PRTMARY CURRENT OF TWO DIMEMSIONAL SYSTEM-GENERATED ELECTROMAGNETIC PULSE COMPUTED BY METHOD OF PARTICLE SOURCE
Wang Yu-zhi, Wang Tai-chun
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS    1987, 4 (1): 46-52.  
Abstract206)      PDF (356KB)(888)      
In this paper,primary current of two-dimensional SGEMP are soluted by method of particle Source.Under the same conditions that Maxwell equations, enerrgy and velocity equation of second electrons,and other computational conditions are the same as those of referenced[1].Results of qrimary current and SGEMP coincide with those of referenced[1].
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A TWO-DIMENSIONAL SYSTEM-GENERATED ELECTROMAGNETIC PULSE
Wang Tai-chun, Wang Yu-zhi
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS    1986, 3 (4): 442-454.  
Abstract181)      PDF (652KB)(910)      
In this paper, relations between IE,lP (Internal Electromagnetic Pulse) and SGE MP(System-Generated Electromagnetic Pulse) are discussed.Numerical results of SGE MP are oStained under the conditions that the objects are exposed to x-rays.
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A ONE-DIMENSIONAL SYSTEM-GENERATED ELECTROMAGNETIC PULSE
Wang Yu-zhi, Wang Tai-chun
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS    1986, 3 (4): 431-441.  
Abstract142)      PDF (555KB)(880)      
In the paper, one dimensional Boltzmann equation is soluted by method of ordinary difference. Total current contained primary and second current are obtained. At the same time, numerical results of one-dimensional MP are given.
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INTERNAL ELECTROMAGNETIC PULSE PRODUCED BY PROMPT-γ PHOTONS WITHIN CAVITY OF THE CYLINDER
Wang Tai-chun, Zhou Guang-yi, Wang Yu-zhi
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS    1986, 3 (3): 287-298.  
Abstract205)      PDF (641KB)(944)      
In this Paper, we discussed Physical Priciple of the non-self-consistent methods, calculated and analyzed internal electromagnetic pulse produced by Prompt-γ photons within cavity of the cylinder under the conditions of nuclear explosion.
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THREE DIMENSIONAL INTERAL ELECTROMAGNETIC PULSE CALCULATED BY PRATICLE SOURCE METHOD
Wang Yu-zhi, Wang Tai-chun
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS    1986, 3 (2): 241-248.  
Abstract217)      PDF (412KB)(887)      
In this paper, the numerical results of the primary electronic current and the internal electromagnetic pulse were obtained by particle method in the cavity of three dimensional rectangle.We compared those results with the results calculated by three dimensional Euler-method. Under the same conditions, the results obtained by particle method agree with results by Euler-method.
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APPROXIMATE ESTIMATE DENSITY OF ELECTRONS PRODUCED BY NUCLEAR EXPLOSION OF THE HIGH-ALTITUDE
Wang Tai-chun, Wang yu-zhi
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS    1986, 3 (2): 171-182.  
Abstract201)      PDF (578KB)(889)      
Under the nuclear explosion of high-altitude, second electrons are produced by high energy electrons that are produced by γ-compton scater ionizing the atomosphere. In this paper, we deduced the analytic solution of the rate equations discribing second electrons and compared the results of analytic solution with those of numerical solution:the higher the altitude, the nearer the computational results of two methods are.
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A SELF-CONSISTENT METHOD FOR CALCULATING THE INTERNAL ELECTROMAGNETIC PULSE IN THE TWO-DIMENSIONAL CYLINDRICAL CAVITY (III)
Wang Yu-zhi, Wang Tai-chun
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS    1985, 2 (4): 430-442.  
Abstract167)      PDF (783KB)(1059)      
This paper is the continuity of the reference [1] and [2], is also last a paper of those works. Its subject are to solve the equations of the primary electrons with Lagranican method.At the same time,numerrccal results are given by PIC, Eulerian and Lagrangean method. we compare those results with the results of the non-self-consintent method when electric field intensity E>105v/M,the results of the self-consistent method is nearer when electric field intensity E≤105v/M, the results of self-consistent rather nice coincide with the results of non-self-consistent method.
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A SELF-CONSISTENT METHOD FOR CALCULATING THE INTERNAL ELECTROMAGNETIC PULSE IN THE TWO-DIMENSIONAL CYLINDRICAL CAVITY (Ⅱ)
Wang Tai-chun, Wang Yu-zhi
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS    1985, 2 (3): 327-336.  
Abstract183)      PDF (565KB)(882)      
This paper is the coutinuity of the reference[1]. Under the case that the conditions of the Maxwell's equations, the equations of the rate, and corresponding to difference scheme are not varied, the equations of the primary electrons are solved by Euleran method. The difference scheme of the equations of the primary electrona are derived in the cne-dimensional plane and the two-dimensional cylindrical coordinate. At the same time, the model of the two-dimensional cylinder are numerically caltulated. Both the calculating results of this paper and the reference[1]are discussed in the reference[2].
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A SELF-CONSISTENT METHOD FOR CALCULATING THE INTERNAL ELECTROMAGNETIC PULSE IN THE TWO-DIMENSIONAL CYLINDRICAL CAVITY (I)
Wang Yu-zhi, Wang Tai-chun, Zhou Guang-yi
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS    1985, 2 (2): 193-204.  
Abstract179)      PDF (730KB)(993)      
In this paper, the difference scheme of the Maxwell's equations and the equations of the rate are given by us,at the same time,the equations of the primary electrons are solved by the Particle-in-cell (pic-method) and the primary electric current are obtained. To regard the primary electric current as the source term of the equations of the rate,the secondary electric current again are abtained, the algebraical sum of those currents driving electromagnetic pulse. Lastly,under the conditio are the source for ns of the nuclear burst, internal electromagnetic pulse produced by the prempt gamma photons are obtained.
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