Research output: Contribution to journal › Article › peer-review
Singular approximations for calculating vortex filaments. / Okulov, V. L.; Fukumoto, Ya.
In: Journal of Applied Mechanics and Technical Physics, Vol. 62, No. 3, 05.2021, p. 519-524.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Singular approximations for calculating vortex filaments
AU - Okulov, V. L.
AU - Fukumoto, Ya
N1 - Publisher Copyright: © 2021, Pleiades Publishing, Ltd.
PY - 2021/5
Y1 - 2021/5
N2 - The accuracy of numerical calculations of the dynamics of vortex filaments is estimated via the cutoff method using the example of the motion of helical vortices. In the case of helical vortices with uniform vorticity distribution of a Rankine core, there are two analytical approaches to solving the problem. These approaches are used to determine the minimum admissible distance between vortex filaments or their elements to ensure the accuracy of calculations when using the cutoff method. There is an established error that occurs in the calculations based on the cutoff method in the case of convergence of the rounds of a helical vortex.
AB - The accuracy of numerical calculations of the dynamics of vortex filaments is estimated via the cutoff method using the example of the motion of helical vortices. In the case of helical vortices with uniform vorticity distribution of a Rankine core, there are two analytical approaches to solving the problem. These approaches are used to determine the minimum admissible distance between vortex filaments or their elements to ensure the accuracy of calculations when using the cutoff method. There is an established error that occurs in the calculations based on the cutoff method in the case of convergence of the rounds of a helical vortex.
KW - desingularization
KW - helical vortex
KW - regularization of numerical solutions
KW - vortex dynamics
KW - vortex filaments
UR - http://www.scopus.com/inward/record.url?scp=85114686207&partnerID=8YFLogxK
U2 - 10.1134/S0021894421030196
DO - 10.1134/S0021894421030196
M3 - Article
AN - SCOPUS:85114686207
VL - 62
SP - 519
EP - 524
JO - Journal of Applied Mechanics and Technical Physics
JF - Journal of Applied Mechanics and Technical Physics
SN - 0021-8944
IS - 3
ER -
ID: 34192034