Pith Number

pith:2KCDUJY5

pith:2026:2KCDUJY5PABVVOQEXSLF3HTYNL

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Unexpected Marangoni Condensation in Negative Binary Mixtures

Abenezer Abere, Patricia B. Weisensee

Marangoni condensation arises spontaneously in negative binary mixtures via thermo-diffusion.

arxiv:2605.13552 v1 · 2026-05-13 · physics.flu-dyn

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4 Citations open

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Claims

C1strongest claim

Here, we demonstrate unexpected spontaneous Marangoni-driven pseudo-dropwise condensation in 'negative' water-ethylene glycol and water-triethylene glycol mixtures... leading to over 6x wettability-independent heat transfer enhancement compared to filmwise condensation.

C2weakest assumption

That thermo-diffusion in these dilute negative mixtures generates surface tension gradients strong enough to overcome the expected film stability and trigger breakup.

C3one line summary

Negative binary mixtures exhibit unexpected Marangoni pseudo-dropwise condensation via thermo-diffusion, achieving over 6x heat transfer enhancement independent of surface wettability.

References

17 extracted · 17 resolved · 0 Pith anchors

[1] Utaka, Y . & Nishikawa, T. Measurement of Condensate Film Thickness for Solutal Marangoni Condensation Applying Laser Extinction Method. J Enh Heat Transf 10, 119–130 (2003) 2003

[2] Oron, A., Davis, S. H. & BankoƯ, S. G. Long-scale evolution of thin liquid ﬁlms. Rev. Mod. Phys. 69, 931–980 (1997) 1997

[3] Ford, J. D. & Mcaleer, J. E. Non-ﬁlmwise condensation of binary vapors: Mechanism and droplet sizes. Can J Chem Eng 49, 157–158 (1971) 1971

[4] Hijikata, K., Fukasaku, Y . & Nakabeppu, O. Theoretical and Experimental Studies on the Pseudo-Dropwise Condensation of a Binary Vapor Mixture. Journal of Heat Transfer 118, 140– 147 (1996) 1996

[5] Utaka, Y . & Che, Z. Condensate Drop Movement by Surface Temperature Gradient on Heat Transfer Surface in Marangoni Dropwise Condensation. in An Overview of Heat Transfer Phenomena (ed. Kazi, M. S. N. 2012 · doi:10.5772/51830

Receipt and verification

First computed	2026-05-18T02:44:23.716341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2843a271d78035aba04bc965d9e786ac918b91871a25ad9b73e93c218389dcb

Aliases

arxiv: 2605.13552 · arxiv_version: 2605.13552v1 · doi: 10.48550/arxiv.2605.13552 · pith_short_12: 2KCDUJY5PABV · pith_short_16: 2KCDUJY5PABVVOQE · pith_short_8: 2KCDUJY5

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/2KCDUJY5PABVVOQEXSLF3HTYNL \
  | 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: d2843a271d78035aba04bc965d9e786ac918b91871a25ad9b73e93c218389dcb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd82fb7d15aa7e35ed91a479a8c0cbf10857aaf56c9d908f44614daea5b2579e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2026-05-13T13:57:30Z",
    "title_canon_sha256": "541d0c74df00e4a44c9dc07a8e099e30ab0a284ab80b1c8e6ac82c15e52d253f"
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    "kind": "arxiv",
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}