| Item type |
itemtype_ver1(1) |
| 公開日 |
2022-09-20 |
| タイトル |
|
|
タイトル |
Study on the Curvature of Lagrangian Trajectories in Thermal Counterflow |
|
言語 |
en |
| 著者 |
Sakaki, Naoto
Maruyama, Takumi
Tsuji, Yoshiyuki
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利 |
|
|
言語 |
en |
|
権利情報 |
This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s10909-022-02734-8 |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Helium4 |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Thermal counterflow |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Curvature |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
PTV |
| 内容記述 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Small particle trajectories are visualized in thermal counterflow using the particle tracking velocimetry technique, and the curvature of two-dimensional Lagrangian trajectories are studied. It is found that the probability density function of the curvature demonstrates a power-law tail similar to that of classical turbulence. The curvature distribution is classified into three regions with high, medium, and low values, and the particle velocity is averaged in each region. Furthermore, the particle velocity in the low curvature region clearly shows a bimodal distribution and agrees with the two-fluid model in the case of low heat flux. However, in the high curvature region, the particle velocity deviates from the theoretical value and exhibits a Gaussian distribution. We understand from the visualized particle trajectories that the high curvature region corresponds to a complex trajectory that interacts with a quantum vortex, but the low curvature region indicates an almost straight line. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Springer |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 関連情報 |
|
|
関連タイプ |
isVersionOf |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1007/s10909-022-02734-8 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
PISSN |
|
収録物識別子 |
0022-2291 |
| 書誌情報 |
en : Journal of Low Temperature Physics
巻 208,
号 3-4,
p. 223-238,
発行日 2022-08
|
| ファイル公開日 |
|
|
日付 |
2023-08-01 |
|
日付タイプ |
Available |
Sakaki_2022_Study_On_the_Curvature_of_Lagrangian_in_Thermal_Counterflow.pdf (5.3 MB)
