Journal profile · Mechanics
International Journal of Multiphase Flow
ISSN 0301-9322 · eISSN 1879-3533 · Elsevier BV · ENGLAND · Monthly · Founded 1973
International Journal of Multiphase Flow: CAS Zone 2 · Engineering (2025 upgraded edition); impact factor 3.92; hybrid open access; APC about USD 3,900; review about 120 days (submission to acceptance, publisher); community-reported acceptance: easy; 396 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
International Journal of Multiphase Flow is published by Elsevier BV and is in Zone 2 of Engineering in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Fluid Dynamics and Mixing, Fluid Dynamics and Heat Transfer and Particle Dynamics in Fluid Flows, together about 39% of its articles. Its main subfields are Computational Mechanics. (generated from OpenAlex topic counts and CAS ranking data)
The International Journal of Multiphase Flow publishes analytical, numerical and experimental articles of lasting interest. The scope of the journal includes all aspects of mass, momentum and energy exchange phenomena among different phases such as occur in disperse flows, gas–liquid and liquid–liquid flows, flows in porous media, boiling, granular flows and others.The journal publishes full papers, brief communications and conference announcements and Express Tracks.Express Track (ExTra) are papers that will be handled by a dedicated editor with a very short turnover time. The main goal of IJMF Express Track is to report significant developments in the field of multiphase flows that deserve to be published in a speedy manner. The first-round reviewing process is typically less than three weeks, and the average time from the submission to final online publication will be within two months. Manuscripts submitted to Express Tracks must maintain the same standard of rigor and quality required of all papers submitted to the Journal.
From the journal's Aims & Scope
Research area (LetPub): Mechanics
Editor-in-chief Sivaramakrishnan BalachandarPublisher website
Editorial board by country: 10 in mainland China (about 13%); most named United States 23, Mainland China 10, France 7, Japan 6, Germany 6 (77 members with a country) Editorial board ↗Publisher website ·
Main research topics OpenAlex counts of recent articles; shares are approximate
- Fluid Dynamics and MixingEngineering14.5%
- Fluid Dynamics and Heat TransferEngineering13.2%
- Particle Dynamics in Fluid FlowsEngineering11.3%
- Heat Transfer and Boiling StudiesEngineering7.6%
- Granular flow and fluidized bedsEngineering6.2%
- Fluid Dynamics and Turbulent FlowsEngineering5.1%
- Lattice Boltzmann Simulation StudiesEngineering4.5%
- Fluid Dynamics and Thin FilmsEngineering3.7%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Engineering Zone 2
| Level | Category | Zone |
|---|---|---|
| Major | Engineering | Zone 2 |
| Minor | Mechanics | Zone 2 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Engineering Zone 2
| Level | Category | Zone |
|---|---|---|
| Major | Engineering | Zone 2 |
| Minor | Mechanics | Zone 2 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Engineering Zone 2
| Level | Category | Zone |
|---|---|---|
| Major | Engineering | Zone 2 |
| Minor | Mechanics | Zone 2 |
Top journal: noReview journal: no
Database indexing
SCIEScopusLetPub
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
- 3.92LetPub ·
- Impact factor (publisher)
- 3.9Publisher website ·
- CiteScore 2026-06
- 7LetPub ·
- CiteScore (publisher)
- 7Publisher website ·
- SJR 2026-06
- 0.83LetPub ·
- SNIP 2026-06
- 1.54LetPub ·
- h-index
- 108LetPub ·
- h-index
- 196OpenAlex ·
- i10-index
- 4,339OpenAlex ·
- 2-year mean citedness
- 3.85OpenAlex ·
- Self-citation rate
- 10.3%LetPub ·
- Share of gold OA articles
- 28.77%LetPub ·
Volume
- Articles per year
- 368LetPub ·
Articles by year OpenAlex count · 8,029 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 293 | 133 | 117 |
| 2025 | 396 | 153 | 1,354 |
| 2024 | 312 | 151 | 2,380 |
| 2023 | 271 | 113 | 3,287 |
| 2022 | 260 | 88 | 4,207 |
| 2021 | 261 | 91 | 4,891 |
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
Publisher-reported review time from the journal's website
120 dayssubmission to acceptance · community reports about 4.5 months
The publisher's own definition applies; dates from this journal's articles in the last 24 months are not available yet, so the publisher's figure is used.
Figures by source
- Average review time (community reports)
- about 4.5 monthsLetPub ·
- Average acceptance (community reports)
- EasyLetPub ·
- Submission to first decision
- 10 daysPublisher website ·
- First decision after review
- 53 daysPublisher website ·
- Submission to acceptance
- 120 daysPublisher website ·
- Acceptance to publication
- 5 daysPublisher website ·
- Peer review
- Single anonymous peer reviewPublisher website
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
Hybrid open accessLetPub
A subscription journal in which authors can pay to publish their article open access.
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| OpenAlex | USD 3,900 / EUR 3,650 / GBP 3,120 / JPY 483,720 | — | — | |
| Publisher website | USD 3,550 | — | — |
A hybrid journal charges the APC only when the author chooses open access; publishing under the subscription model is usually free.
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)
Open calls for papers1, by deadline
Publisher websiteWhat to prepare6 items from the author guidelines
- Abstract
- ≤ 250 words
- Keywords
- 1–7
- Reference style
- Numbered, in order of citation
- First submission
- Free format: the journal's layout is not required
- Highlights
- Required
- Graphical abstract
- Optional
Article types accepted9
- brief communicationThe journal publishes full papers, brief communications, conference announcements and and Express Track*. Express Track (ExTra)* Express Track (ExTra) papers wi…Length not stated
- brief communicationsThe journal publishes full papers, brief communications, conference announcements and and Express Track*.Length not stated
- conference announcementsThe journal publishes full papers, brief communications, conference announcements and and Express Track*.Length not stated
- correspondenceThe journal publishes full papers, brief communications, conference announcements and and Express Track*. Express Track (ExTra)* Express Track (ExTra) papers wi…Length not stated
- express trackExpress Track (ExTra) are papers that will be handled by a dedicated editor with a very short turnover time.Length not stated
- full paperThe journal publishes full papers, brief communications, conference announcements and and Express Track*. Express Track (ExTra)* Express Track (ExTra) papers wi…Length not stated
- full papersThe journal publishes full papers, brief communications, conference announcements and and Express Track*.Length not stated
- reviewThe journal publishes full papers, brief communications, conference announcements and and Express Track*. Express Track (ExTra)* Express Track (ExTra) papers wi…Length not stated
- standard paperThe journal publishes full papers, brief communications, conference announcements and and Express Track*. Express Track (ExTra)* Express Track (ExTra) papers wi…Length not stated
Policy excerpts from the journal's websiteAI use, Authorship, Conflicts of interest, License & copyright, Open access, Peer review, Preprints
- AI use Declaration of generative AI use
Authors must declare the use of generative AI tools in the manuscript preparation process upon submission of the paper.Generative AI and AI-assisted technologies (“AI tools”) have been rapidly adopted in research and scholarly publishing, offering significant benefits while requiring clear standards for responsible and transparent use.Authors preparing a manuscript for this journal may use AI tool…
Source ↗Publisher website ·- Authorship Group authorship
Group authorship refers to the attribution of an article to a defined and named group of authors whose members have contributed to the work. Examples include research consortia, clinical trial groups, collaborative networks, task forces or working groups, expert panels or consensus groups, and participatory research groups. Group authorship must be declared on the title page at submission. When av…
Source ↗Publisher website ·- Conflicts of interest Declaration of competing interests
All authors must disclose any financial and personal relationships with other people or organizations that could inappropriately influence or bias their work. Examples of potential competing interests include:EmploymentConsultanciesStock ownershipHonorariaPaid expert testimonyPatent applications or registrationsGrants or any other fundingAffiliation with the journal as an Editor or Advisory Board …
Source ↗Publisher website ·- License & copyright License options
Authors will be offered open access user license options which will determine how you, and third parties, can reuse your open access article. We advise that you review these options and any funding body license requirements before selecting a license option.
Source ↗Publisher website ·- Open access Open access
We refer you to our open access information page to learn about open access options for this journal.
Source ↗Publisher website ·- Peer review Peer review
Single anonymized review process Model summary
This journal follows a single anonymized review process. Your submission will initially be assessed by our editors. If your submission is deemed suitable, it will typically be sent to be reviewed by a minimum of two reviewers for an independent expert assessment of the scientific quality. The decision as to whether your article is accepted or rejected for publication will be made by our editors.Re…
Source ↗Publisher website ·- Preprints Preprints
Preprint sharingAuthors may share preprints in line with Elsevier's article sharing policy. Sharing preprints, such as on a preprint server, will not count as prior publication.We advise you to read our policy on multiple, redundant or concurrent publication. In support of Open Science, this journal offers its authors a free preprint posting service on SSRN, Elsevier’s preprint and early research …
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
- Elsevier BV
- Country or region
- ENGLAND
- Language
- English
- Frequency
- Monthly
- Founded
- 1973
- ISSN
- 0301-9322
- Electronic ISSN
- 1879-3533
- Official links
- Journal homepage ↗LetPub
- Submission system ↗Publisher website
- Special issues ↗Publisher website
FAQ
Frequently asked questions about International Journal of Multiphase Flow
What CAS zone is International Journal of Multiphase Flow in?
In the 2025 upgraded edition of the CAS Journal Ranking, International Journal of Multiphase Flow is in Zone 2 of Engineering, and in Zone 2 of the minor category Mechanics. In the 2026 Xinrui edition it is in Zone 2 of Engineering. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of International Journal of Multiphase Flow?
The latest impact factor listed by LetPub is 3.92; CiteScore 7, h-index 196.
How long does peer review take at International Journal of Multiphase Flow?
The publisher reports about 120 days (submission to acceptance); authors report an average review time of about 4.5 months; the community-reported acceptance is “Easy”. 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.
What are the manuscript requirements of International Journal of Multiphase Flow?
According to the journal's author guidelines: Abstract: ≤ 250 words; Keywords: 1–7; Reference style: Numbered, in order of citation; First submission: Free format: the journal's layout is not required; Highlights: Required; Graphical abstract: Optional. A model extracted these from the author guidelines and each was checked against the text; check the latest version on the journal's website before submitting.
Where are the editorial board members of International Journal of Multiphase Flow based?
Of the 77 board members whose country the journal's board page names, 10 (about 13%) are in mainland China; the countries named most often are United States (23), Mainland China (10) and France (7). Counted from the institutions listed on the board page; for reference only.
Which databases index International Journal of Multiphase Flow?
According to LetPub and DOAJ records, International Journal of Multiphase Flow is indexed in SCIE and Scopus.
Is International Journal of Multiphase Flow open access, and what is the APC?
International Journal of Multiphase Flow is a hybrid journal. For open-access publication: APC about USD 3,900.
Sources and updates
The facts on this page come from LetPub, Publisher website, OpenAlex; 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: .