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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 36, Number 3
JKCSEZ 36(3)
June 20, 1992

Title	Viscosity of Helium Calculated by Using the Brake Theory of Viscosity Brake 점성 이론으로 계산한 헬륨의 점성도
Author	Won-Soo Kim, Jin-Young Kim, Tong-Seek Chair 김원수, 김진영, 최동식
Keywords
Abstract	액체 헬륨은 열역학적 성질이나 운반성질에서 특이한 현상을 나타내기 때문에 그 성질의 연구는 흥미있는 관심사였다. 특히 액체 헬륨의 점성도는 4He가 3He의 경우와 매우 틀리고 λ점 이하에서 초유체성을 나타내는 등 일반 액체 점성과는 판이하게 다르다. 저자에 의해 제시된 Brake이론이라 불리는 점성이론을 헬륨에 적용하여 타당성 여부를 조사하였다. 파라미터 고체부피(Vs)를 조정하므로 액체 3He, 4He와 함께 기체 및 dense gas를 동시에 적용하여 계산하였고, 그 계산 결과는 실험값과 잘 일치했다. Liquid helium is an exciting subject for the study of thermodynamic and transport properties because of its remarkable properties. The viscosity of liquid helium exhibits the abnormal behavior compared to other ordinary liquid. Below the λ point liquid 4He becomes superfluid, and it is obviously quite a different phenomenon from the change of liquid 3He. The brake theory of viscosity proposed by authors is successfully applied to liquid 3He, liquid 4He, dense gas and 4He with adjustable parameter Vs. The calculation results are satisfactory compared with the observed values.
Page	376 - 382
Full Text	PDF

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