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Sökning: WFRF:(Chen Tingkuan)

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1.
  • Doumas, Kyriaki, et al. (författare)
  • ?????????????????
  • 2005
  • Ingår i: Proceedings of the 11th Annual Meeting of Chinese Engineering Thermophysics.
  • Konferensbidrag (refereegranskat)
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2.
  • Li, Huixiong, et al. (författare)
  • ??-??????????????
  • 2005
  • Ingår i: Gongcheng Rewuli Xuebao. - Beijing, China. - 0253-231X. ; 26, s. 963-966
  • Tidskriftsartikel (refereegranskat)abstract
    • ???????-??????????????????????????????Level Set??????-?????????????,???????????????????????????,??????????????????????????????????????????????????,?Runge-Kutta?-??WENO??????Level Set????,????????Projection????????,??SIMPLE?????????????????????,???????????????????????????????,???????????,????????????
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3.
  • Li, Liangxing, et al. (författare)
  • ??????????????????????????
  • 2008
  • Ingår i: Hedongli Gongcheng. - ChengDu, China. - 0258-0926. ; 29, s. 42-45
  • Tidskriftsartikel (refereegranskat)abstract
    • ???????????????????,????????????????????????????????????????,?????????????????????,???????????????????????????,???????????,???????????????????
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4.
  • Li, Liangxing, et al. (författare)
  • ????????????????
  • 2007
  • Ingår i: Hedongli Gongcheng. - Chengdu, China. - 0258-0926. ; 28, s. 36-41
  • Tidskriftsartikel (refereegranskat)abstract
    • ??????????????????????????????,?????????????????,?????????????,??????????????????-?????????????????,???????-????,???????????-????,???????????;?????????,??????????,?????????????;??????????,???????,??????????????
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5.
  • Li, Liangxing, et al. (författare)
  • ?????????????????
  • 2007
  • Ingår i: Gongcheng Rewuli Xuebao. - Beijing, China. - 0253-231X. ; 28, s. 64-67
  • Tidskriftsartikel (refereegranskat)abstract
    • ?????????????????????;??????????????????????,?????????.?????????????????????????,??????????,?????.??????:??????,????????????????;??????,????????????????.?????????????????????.
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6.
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7.
  • Li, Liangxing, et al. (författare)
  • Dynamic characteristics of molten droplets and hot particles falling in liquid pool
  • 2010
  • Ingår i: Frontiers of Energy and Power Engineering in China. - 1673-7393. ; 4:2, s. 246-251
  • Tidskriftsartikel (refereegranskat)abstract
    • The dynamic characteristics of molten droplets and hot particles at the very beginning of their fall into coolant pools are presented. The falling course of a single droplet or a single hot particle was recorded by a high-speed camera and a curve of velocity vs. time was obtained. Emphasis was placed on the effects of the droplet's size and temperature, the coolant's temperature and properties, and the droplet's physical properties on the moving behavior. The results for the all cases showed that the velocity of a falling droplet/particle decreased rapidly but rebounded shortly, at the beginning of droplet/particle falling in the coolant. Following such a V-shaped evolution in velocity, the droplet/particle slows down gradually to a comparatively steady velocity. An increase in either coolant temperature or droplet temperature results in a larger velocity variation in the "J-region", but a smaller deceleration when it moves out of the "J-region". The elevated volatility of a coolant leads to a steeper deceleration in the "J-region" and beyond. The bigger size of a particle leads to a greater velocity variation in the "J-region" and terminal velocity. A high melting point and thermal conductivity as well as lower heat capacity contribute to dramatic variation in the "J-region" and low terminal velocity.
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8.
  • Li, Liangxing, et al. (författare)
  • Evaluation of the void fraction in the crescent-shape moderator cell of the CARR-CNS
  • 2008
  • Ingår i: Physica. B, Condensed matter. - 0921-4526. ; 403:12, s. 2036-2042
  • Tidskriftsartikel (refereegranskat)abstract
    • The mathematical model developed in a previous paper is improved in the present paper for analyzing and evaluating the void fraction profiles in the crescent-shape moderator cell of the Cold Neutron Source (CNS) of the China Advanced Research Reactor (CARR) which is now under construction in the China Institute of Atomic Energy (CIAE). The model is then applied to the case of the CARR-CNS with liquid hydrogen as a moderator and the void fraction in the crescent-shape moderator cell of the CARR-CNS is evaluated. The calculation results show that the void fraction in the crescent-shape moderator cell less than 20%. The model and the calculation results will help to obtain insight of the mechanism that controls the void fraction distribution in the crescent-shape moderator cell, and provide theoretical supports for the moderator cell construction.
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9.
  • Li, Liangxing, et al. (författare)
  • Experimental investigation on the moving characteristics of molten metal droplets impacting coolant
  • 2008
  • Ingår i: Experimental Thermal and Fluid Science. - 0894-1777. ; 32:4, s. 962-972
  • Tidskriftsartikel (refereegranskat)abstract
    • This paper reports the results of an experimental investigation on the moving characteristics of molten metal droplets impacting coolant free surface. A visualization experimental facility of molten fuel coolant interactions (MFCI) is designed and set up in the present study. The lead–bismuth (Pb–Bi) alloys are employed as the metal materials. An automatic control circuit is designed and applied to control the release of the molten droplets. High-speed camera is employed to record the movement of the molten metal droplets falling down and into a coolant pool. Based on the analysis of the experimental data, a so-called “J-region” of the droplet’s velocity–time curves was found and the melt droplet enters the “J-region” when it impacts the free water surface. In the “J-region”, the velocity of the melt droplet decreases rapidly and suddenly at first, and then increases again. The droplet gradually reaches a comparatively steady velocity when it leaves the “J-region”. The present study provides essential information for further study on the fragmentation behavior of high-temperature molten droplets in coolant.
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10.
  • Li, Liangxing, et al. (författare)
  • Study on void fraction distribution in the moderator cell of Cold Neutron Source systems in China Advanced Research Reactor
  • 2007
  • Ingår i: Physica. B, Condensed matter. - 0921-4526. ; 393:1-2, s. 336-346
  • Tidskriftsartikel (refereegranskat)abstract
    • A physical model is developed for analyzing and evaluating the void fraction profiles in the moderator cell of the Cold Neutron Source (CNS) of the China Advanced Research Reactor (CARR), which is now constructing in the China Institute of Atomic Energy (CIAE). The results derived from the model are compared with the related experimental data and its propriety is verified. The model is then used to explore the influence of various factors, including the diameter of boiling vapor bubbles, liquid density, liquid viscosity and the total heating power acted on the moderator cell, on the void fraction profiles in the cell. The results calculated with the present model indicate that the void fraction in the moderator cell increases linearly with heating power, and increases with the liquid viscosity, but decreases as the size of bubbles increases, and increases linearly with heating power. For the case where hydrogen is being used as a moderator, calculation results show that the void fraction in the moderator cell may be less than 30%, which is the maximum void fraction permitted from the nuclear physics point of view. The model and the calculation results will help to obtain insight of the mechanism that controls the void fraction distribution in the moderator cell, and provide theoretical supports for the moderator cell design.
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