Pith Number

pith:XCPXTQK5

pith:2025:XCPXTQK5AOTMOOK4GVUD5SSE4F

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How hydrodynamic interactions alter polymer stretching in turbulence

Aditya Ganesh, Dario Vincenzi, Jason R. Picardo, Ranganathan Prabhakar

Hydrodynamic interactions stretch stiff polymers less but elastic ones more in turbulence.

arxiv:2509.05349 v2 · 2025-09-02 · cond-mat.soft · cond-mat.stat-mech · physics.chem-ph · physics.flu-dyn

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Claims

C1strongest claim

HI-endowed chains exhibit a steeper coil-stretch transition as the elastic relaxation time is increased, i.e., HI cause less stretching of stiff polymers and more stretching of moderately to highly elastic polymers. The probability distribution function of the end-to-end extension is also modified, with HI significantly limiting the range of extensions over which a power-law range appears.

C2weakest assumption

The ultra-dilute, one-way coupling regime in which polymers do not affect the turbulent flow field, combined with the specific level of coarse-graining in the bead-spring model (abstract: 'within the ultra-dilute, one-way coupling regime' and 'sensitive to the level of coarse-graining').

C3one line summary

Hydrodynamic interactions in bead-spring chains cause a steeper coil-stretch transition, modified extension distributions, and delayed state switching in homogeneous isotropic turbulence, with strong dependence on coarse-graining level.

References

85 extracted · 85 resolved · 0 Pith anchors

[1] do not exhibit persistent folded configurations, as demonstrated by their smooth distributions of extension. The strong influence on the behaviour of chains of the anisotropy of the turbulent flow off 2021

[2] M. D. Graham, Drag reduction and the dynamics of turbulence in simple and complex fluids, Phys. Fluids 26, 101301 (2014) 2014

[3] R. Benzi and E. S. C. Ching, Polymers in fluid flows, Annu. Rev. Condens. Matter Phys. 9, 163 (2018) 2018

[4] Xi, Turbulent drag reduction by polymer additives: Fundamentals and recent advances, Phys 2019

[5] F. Serafini, F. Battista, P. Gualtieri, and C. M. Casciola, Drag reduction in turbulent wall-bounded flows of realistic polymer solutions, Phys. Rev. Lett. 129, 104502 (2022) 2022

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T00:00:23.796515Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b89f79c15d03a6c7395c35683eca44e15cd6359fab5a9e496dfa99143316184b

Aliases

arxiv: 2509.05349 · arxiv_version: 2509.05349v2 · doi: 10.48550/arxiv.2509.05349 · pith_short_12: XCPXTQK5AOTM · pith_short_16: XCPXTQK5AOTMOOK4 · pith_short_8: XCPXTQK5

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/XCPXTQK5AOTMOOK4GVUD5SSE4F \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b89f79c15d03a6c7395c35683eca44e15cd6359fab5a9e496dfa99143316184b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a3b9b6e711f6df711aeed1b9c43886515f95d40ecbf5e0056d1307560ed3093",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "physics.chem-ph",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2025-09-02T17:47:01Z",
    "title_canon_sha256": "e15f48aca89aa1ad872da9805fc8421e9a297ac93fb8defa272d1df79ef1542f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.05349",
    "kind": "arxiv",
    "version": 2
  }
}