Journal profile · Engineering-Engineering (miscellaneous)
Flow
ISSN 2633-4259 · Cambridge University Press · United Kingdom
Flow: CAS Zone 3 · Engineering (2025 upgraded edition); impact factor 25 (journal website); fully open access; APC about USD 3,300; review about 28 weeks (community reports); 44 articles in 2025; indexed in ESCI and Scopus.
Scope
Aims, scope and focus
Flow is published by Cambridge University Press and is in Zone 3 of Engineering in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Fluid Dynamics and Turbulent Flows, Fluid Dynamics and Vibration Analysis and Wind and Air Flow Studies, together about 27.1% of its articles. Its main subfields are Computational Mechanics and Aerospace Engineering. (generated from OpenAlex topic counts and CAS ranking data)
Flow focuses on the applications of fluid mechanics to technology, natural, and medical sciences, and descriptions of the physical world. An open access companion journal to the Journal of Fluid Mechanics, Flow is a translational journal that seeks to leverage the principles and tools of fluid mechanics and transport phenomena to enable devices and systems that benefit humankind, or provide scientific insights into nature. The novelty of published work can be in an analysis method, application or their combinations. Applications can also include non-fluid systems. Papers should be intelligible to a broad scientific audience.
From the journal's Aims & Scope
Research area (LetPub): Engineering-Engineering (miscellaneous)
Editor-in-chief Juan G. SantiagoPublisher website
Main research topics OpenAlex counts of recent articles; shares are approximate
- Fluid Dynamics and Turbulent FlowsEngineering14.7%
- Fluid Dynamics and Vibration AnalysisEngineering6.2%
- Wind and Air Flow StudiesEnvironmental Science6.2%
- Aerodynamics and Acoustics in Jet FlowsEngineering5.6%
- Fluid Dynamics and Heat TransferEngineering5.3%
- Computational Fluid Dynamics and AerodynamicsEngineering4.7%
- Biomimetic flight and propulsion mechanismsEngineering4.7%
- Music History and CultureArts and Humanities4.1%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Engineering Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Engineering | Zone 3 |
| Minor | Mechanics | Zone 3 |
| Minor | Physics, Fluids & Plasmas | Zone 3 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Engineering Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Engineering | Zone 3 |
| Minor | Mechanics | Zone 3 |
| Minor | Physics, Fluids & Plasmas | Zone 3 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Not covered
Not covered by this edition.
Database indexing
ESCIScopusDOAJLetPub
International journal early-warning lists: not listed in any editionLetPub
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- Impact factor (publisher) 2025
- 25Publisher website ·
- CiteScore 2026-06
- 4.1LetPub ·
- SJR 2026-06
- 0.66LetPub ·
- SNIP 2026-06
- 1.04LetPub ·
- h-index
- 17OpenAlex ·
- i10-index
- 43OpenAlex ·
- 2-year mean citedness
- 2.54OpenAlex ·
- Self-citation rate
- 4.8%LetPub ·
- Share of gold OA articles
- 100%LetPub ·
Volume
- Articles per year
- 44LetPub ·
Articles by year OpenAlex count · 283 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 29 | 29 | 11 |
| 2025 | 44 | 44 | 99 |
| 2024 | 33 | 33 | 159 |
| 2023 | 43 | 43 | 295 |
| 2022 | 48 | 48 | 451 |
| 2021 | 14 | 14 | 390 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Review & acceptance
Review time and acceptance
- Average review time (community reports)
- about 28 weeksLetPub ·
- Submission to publication (journal-reported)
- about 30 weeksDOAJ ·
- Peer review
- Single anonymous peer reviewDOAJ
Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.
Fees & open access
APC and open-access policy
Fully open accessDOAJ
Every article is open access; authors usually pay an article processing charge (APC).
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| DOAJ | USD 3,300 / GBP 2,610 | Yes | CC BY, CC BY-SA, CC BY-ND, CC BY-NC, CC BY-NC-SA, CC BY-NC-ND | |
| OpenAlex | USD 2,920 / GBP 2,460 | — | — | |
| LetPub | USD 2,835 / GBP 2,320 | Yes | — | |
| Publisher website | Yes, amount not published | — | — |
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Submission
Article types and submission policies (journal website)
Article types accepted5
- case studiesCase Studies* (12 pages)Length not stated
- critical reviewsCritical Reviews* (25-40 pages)Length not stated
- flow rapidsFlow Rapids* (6 pages)Length not stated
- research articlesResearch articles* (16 pages)Length not stated
- tutorial reviewsTutorial Reviews* (25-40 pages)Length not stated
Policy excerpts from the journal's websitePeer review
- Peer review
Peer review: initial quality/suitability assessment, then single-anonymous review; peer review process and appeal procedure on Review process page. Model summary
All submissions are initially assessed for quality and suitability and thereafter single-anonymous review if suitable, more information about the peer review process and appeal procedure can be found on the Review process page.
Source ↗Publisher website ·
Excerpts are quoted from the journal's website; "model summary" lines are written by Workers AI and checked against the text. The journal's website is authoritative.
Profile
Publication details and official links
- Publisher
- Cambridge University Press
- Country or region
- United Kingdom
- Language
- English
- ISSN
- 2633-4259
- Official links
- Journal homepage ↗LetPub
- Submission system ↗Publisher website
- Author guidelines ↗LetPub
- Aims & Scope ↗LetPub
- Special issues ↗Publisher website
- APC information ↗DOAJ
- Fee waivers ↗DOAJ
- Open access statement ↗DOAJ
- License & copyright ↗DOAJ
- Peer review process ↗LetPub
- Editorial board ↗LetPub
- Plagiarism policy ↗DOAJ
FAQ
Frequently asked questions about Flow
What CAS zone is Flow in?
In the 2025 upgraded edition of the CAS Journal Ranking, Flow is in Zone 3 of Engineering, and in Zone 3 of the minor category Mechanics / Physics, Fluids & Plasmas. In the 2026 Xinrui edition it is in Zone 3 of Engineering. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of Flow?
The journal's website gives an impact factor of 25 (2025); this is the journal's own figure, as LetPub lists none for it; CiteScore 4.1, h-index 17.
How long does peer review take at Flow?
Authors report an average review time of about 28 weeks. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.
Which databases index Flow?
According to LetPub and DOAJ records, Flow is indexed in ESCI, Scopus and DOAJ.
Is Flow open access, and what is the APC?
Flow is a fully open-access journal. APC about USD 3,300.
Sources and updates
The facts on this page come from LetPub, OpenAlex, DOAJ, Publisher website; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-25). Last updated: .