Intermittency in fluid and magnetohydrodynamics (MHD) turbulence analyzed  through  the prism of moment scaling predictions of multifractal models

Pouquet, Annick; Marino, Raffaele; Politano, Hélène; Ponty, Yannick; Rosenberg, Duane

doi:10.5194/npg-32-243-2025

Articles | Volume 32, issue 3

https://doi.org/10.5194/npg-32-243-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/npg-32-243-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 32, issue 3

Research article

|

23 Jul 2025

Research article |

| 23 Jul 2025

Intermittency in fluid and magnetohydrodynamics (MHD) turbulence analyzed through the prism of moment scaling predictions of multifractal models

Annick Pouquet, Raffaele Marino, Hélène Politano, Yannick Ponty, and Duane Rosenberg

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Feb 2025	46	28	4	78
Mar 2025	60	22	2	84
Apr 2025	62	32	8	102
May 2025	28	8	4	40
Jun 2025	40	28	6	74
Jul 2025	142	55	12	209
Aug 2025	370	36	13	419
Sep 2025	1,174	38	7	1,219
Oct 2025	238	42	3	283
Nov 2025	217	31	2	250
Dec 2025	298	51	10	359
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Feb 2026	146	94	12	252
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Apr 2026	148	39	5	192
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Cumulative views and downloads (calculated since 19 Dec 2024)

Month	HTML	PDF	XML	Total
Dec 2024	110	38	10	158
Jan 2025	54	40	2	96
Feb 2025	46	28	4	78
Mar 2025	60	22	2	84
Apr 2025	62	32	8	102
May 2025	28	8	4	40
Jun 2025	40	28	6	74
Jul 2025	142	55	12	209
Aug 2025	370	36	13	419
Sep 2025	1,174	38	7	1,219
Oct 2025	238	42	3	283
Nov 2025	217	31	2	250
Dec 2025	298	51	10	359
Jan 2026	397	80	19	496
Feb 2026	146	94	12	252
Mar 2026	253	116	11	380
Apr 2026	148	39	5	192
May 2026	477	31	3	511
Jun 2026	23	14	1	38
Jul 2026	35	22	4	61

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Short summary

Turbulence is found in many natural systems. We study its statistics in terms of scaling laws of up to fourth-order normalized moments for the velocity or magnetic fields through their relative behavior. We show analytically using existing intermittency models that the physical dimension of structures becomes irrelevant. The strongest intermittent structure has a parabolic scaling as found previously and confirmed by long simulations. More analysis will be performed using simplified models.