Bulletin of the American Physical Society
76th Annual Meeting of the Division of Fluid Dynamics
Sunday–Tuesday, November 19–21, 2023; Washington, DC
Session A37: Rarefied Flows
8:00 AM–9:57 AM,
Sunday, November 19, 2023
Room: 203AB
Chair: Cale Harnish, Los Alamos National Laboratory
Abstract: A37.00004 : A practical deviational particle method for variance reduction of polyatomic gas DSMC simulation*
8:39 AM–8:52 AM
Presenter:
Takehiro Shiraishi
(Univ of Tokyo)
Authors:
Takehiro Shiraishi
(Univ of Tokyo)
Hiroki Imai
(Univ of Tokyo)
Ikuya Kinefuchi
(Univ of Tokyo)
We conducted a numerical experiment involving calculations of one-dimensional evaporation flows. Such evaporation flows encompass heat and mass transfer through vapor, and find applications in various industrial processes like desalination and cooling devices. During the demonstration, we varied the flow velocity and compared the accuracy and computational costs with the DSMC method for validation. According to the results, the present method successfully replicates the results obtained by the DSMC method, with reasonable computational expenses up to a certain degree of non-equilibrium.
*This work is supported by JSPS KAKENHI Grant Numbers JP20H02062 and JP23H01338.
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