يعرض 1 - 10 نتائج من 2,692 نتيجة بحث عن '"supercooled water"', وقت الاستعلام: 1.41s تنقيح النتائج
  1. 1
    مؤتمر

    المصدر: 2023 6th International Conference on Energy, Electrical and Power Engineering (CEEPE) Energy, Electrical and Power Engineering (CEEPE), 2023 6th International Conference on. :163-167 May, 2023

    Relation: 2023 6th International Conference on Energy, Electrical and Power Engineering (CEEPE)

  2. 2
    كتاب إلكتروني

    المساهمون: Habashi, Wagdi George, editorAff1

    المصدر: Handbook of Numerical Simulation of In-Flight Icing. :175-227

  3. 3
    كتاب إلكتروني

    المؤلفون: Yi, XianAff2, Wang, QiangAff2

    المساهمون: Habashi, Wagdi George, editorAff1

    المصدر: Handbook of Numerical Simulation of In-Flight Icing. :3-31

  4. 4
    مؤتمر

    المصدر: 2021 8th International Forum on Electrical Engineering and Automation (IFEEA) IFEEA Electrical Engineering and Automation (IFEEA), 2021 8th International Forum on. :414-419 Sep, 2021

    Relation: 2021 8th International Forum on Electrical Engineering and Automation (IFEEA)

  5. 5
    دورية أكاديمية

    المصدر: Giant, Vol 18, Iss , Pp 100265- (2024)

    الوصف: Ice-templating technology has recently attracted extensive attention to achieve programed structure-property relationships in porous soft matter scaffolds. However, there is a huge gap existed between theoretical understanding and practical applications of nucleation kinetics and growth of ice crystals in supercooled water. This paper establishes a nucleation kinetics model of crystal growth in supercooled water, for designing ice-templating soft matter scaffolds with programmable structure-property relationship. A phase transition model was firstly formulated to characterize liquid-liquid phase transition of supercooled water, based on a two-state model and free-volume theory. Effects of diffusion coefficient and density of the supercooled water on ice nucleation kinetics and crystal growth were investigated, based on the classic nucleation theory. Analytical results showed excellent agreement with experimental data, with correlation indices of R2=90.7 % for diffusion coefficients and R2=94.0 % for densities, respectively. The model predicted a nucleation rate of 31.7 m−3∙s−1 at 200 K and peak nucleation rate and crystal growth rates appearing at 183 K and 227 K. Constitutive relationships among mechanical behaviors, ice nucleus radius, nucleation ratio, and crystallization growth rate, were developed for the ice-templating scaffolds, based on the affine model theory and verified with finite element analysis results (R2= 99.9 %) and experimental results (R2 = 95.8 %). Finally, the prediction results using the proposed model were further verified using the experimental data reported in the literature. This study provides a new methodology to describe the nucleation kinetics and growth of ice crystals in supercooled water and programmable structure-property relationships in ice-templating soft matter scaffolds.

    وصف الملف: electronic resource

  6. 6
    مؤتمر

    المصدر: 2021 IEEE 3rd International Conference on Civil Aviation Safety and Information Technology (ICCASIT) Civil Aviation Safety and Information Technology (ICCASIT), 2021 IEEE 3rd International Conference on. :1202-1204 Oct, 2021

    Relation: 2021 IEEE 3rd International Conference on Civil Aviation Safety and Information Technology (ICCASIT)

  7. 7
    دورية أكاديمية

    المصدر: Results in Physics, Vol 59, Iss , Pp 107581- (2024)

    الوصف: The freezing of supercooled liquids is closely related to many fields. Vibration is one of the most common mechanical disturbances to induce nucleation. However, there has been no systematic study and understanding of ice nucleation mechanisms and how to maintain the stability of supercooled water under vibration. We studied ice nucleation from water in vials by using mechanical vibration as excitation. The results showed that it accelerates nucleation generally. Nevertheless, as the supercooling or the vibration intensity is low, or the flow is hindered, vibration has little effect on the supercooling stability. More meaningfully, if the flow is completely limited under isochoric conditions, vibration has no effect on the freezing temperature of supercooled water, and ice nucleation depends entirely on the container itself. It was demonstrated that stretching water and the formation of cavitation bubbles are the main factors affecting nucleation. The study further revealed three kinds of ice nucleation mechanisms: wall-contact, negative-pressure, and high-pressure nucleation. The findings are helpful for recognizing the effects of vibration on supercooling related to biological tissue preservation and transportation, energy storage, etc., and contribute to understanding the fundamental nucleation mechanism of the solid phase in supercooled liquids under mechanical disturbances.

    وصف الملف: electronic resource

  8. 8
    مؤتمر

    المؤلفون: Putintsev, D. N., Putintsev, N. M.

    المصدر: 2019 IEEE 20th International Conference on Dielectric Liquids (ICDL) Dielectric Liquids (ICDL), 2019 IEEE 20th International Conference on. :1-5 Jun, 2019

    Relation: 2019 IEEE 20th International Conference on Dielectric Liquids (ICDL)

  9. 9
    دورية أكاديمية
  10. 10
    دورية أكاديمية

    المصدر: Universe, Vol 10, Iss 2, p 81 (2024)

    الوصف: Cloud and bubble chambers have historically been used for particle detection, capitalizing on supersaturation and superheating, respectively. Here, we present new results from a prototype snowball chamber, in which an incoming particle triggers the crystallization of a purified, supercooled liquid. We demonstrate, for the first time, simulation agreement with our first results from 5 years ago: the higher temperature of the freezing of water and significantly shorter time spent supercooled compared to the control in the presence of a Cf-252 fission neutron source. This is accomplished by combining Geant4 modeling of neutron interactions with the Seitz nucleation model used in superheated bubble chambers, including those seeking dark matter. We explore the possible implications of using this new technology for GeV-scale WIMP searches, especially in terms of spin-dependent proton coupling, and report the first supercooling of WbLS (water-based liquid scintillator).

    وصف الملف: electronic resource