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NSF PD-21-1443: Fluid Dynamics

Closed Closed Opportunity NSF PD-21-1443

This grant is closed. A newer notice from the same program is open now: Major Research Instrumentation Program: (MRI) (NSF 27-500). Status: Closes January 29, 2027 (83 days left). It is in our archive of U.S. National Science Foundation notices from 2025.

U.S. National Science Foundation offered grants to any type of organization. It expected to make $9.2 million in total. It is no longer open on Grants.gov.

From the official notice on Grants.gov, last changed June 7, 2025. Checked November 7, 2026.

Other notices with this title

U.S. National Science Foundation has posted this title under other numbers: earlier or later rounds, or the same competition for another area. Each has its own dates and may change its rules.

NoticePostedDeadlineStatus
NSF PD-20-1443June 6, 2025ClosedClosed
NSF PD-18-1443June 6, 2025ClosedClosed
NSF PD-23-1443March 21, 2023ClosedClosed

Key dates

PostedJune 6, 2025
Archived by Grants.govJune 7, 2025

Who can apply

This opportunity was open to any type of organization.

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Is this a realistic fit?

What the grant funds

TheFluid Dynamicsprogram is part of the Transport Phenomena cluster, which also includes 1) theCombustion and Fire Systemsprogram; 2) theParticulate and Multiphase Processesprogram; and 3) theThermal Transport Processesprogram. The Fluid Dynamics program supports fundamental research toward gaining an understanding of the physics of various fluid dynamics phenomena. Proposed research should contribute to basic scientific understanding via experiments, theoretical developments, and computational discovery. Major areas of interest and activity in the program include: Turbulence and transition: High Reynolds number experiments; large eddy simulation; direct numerical simulation; transition to turbulence; 3-D boundary layers; separated flows; multi-phase turbulent flows; flow control and drag reduction. A new area of emphasis is high speed boundary layer transition and turbulence; the focus would be for flows at Mach numbers greater than 5 to understand cross-mode interactions leading to boundary layer transition and the ensuing developing and fully developed turbulent boundary layer flows. Combined experiments and simulations are encouraged. Bio-fluid physics:Bio-inspired flows; biological flows with emphasis on flow physics. Non-Newtonian fluid mechanics: Viscoelastic flows; solutions of macro-molecules. Microfluidics and nanofluidics: Micro-and nano-scale flow physics. Wind and ocean energy harvesting: Focused on fundamental fluid dynamics associated with renewal energy. Fluid-structure interactions:NSF interests are in general FSI applications across the low- to high-Reynolds number range. In addition an NSF-AFOSR (Air Force Office of Scientific Research) joint funding area is the theory, modeling and/or experiments for hypersonic applications. Proposals will be jointly reviewed by NSF and AFOSR using the NSF merit review process. Actual funding format and agency split for an award (depending on availability of funds) will be determined after the proposal selection process. The AFOSR program that participates in this initiative istheAerothermodynamics program(program officer: Dr. Sarah Popkin). Canonicalconfigurations:Experimental research is encouraged to develop spatiotemporally resolveddatabases for canonical configurations to either confirm historicalresults or to provide data in an unexplored parameter region. Fidelity and completeness for theoretical/computational validation are key attributes of theproposed experimental data.

Category: Science and Technology and other Research and Development.

Who has won Engineering grants before

From fiscal 2021 to 2025, Engineering (47.041) awarded $4.3 billion across 11,244 grant awards, an average of $385,774 per award.

Largest recipients, fiscal 2021 to 2025
RecipientStateAwardsAmount
Georgia Tech Research CorpGeorgia193$106 million
Purdue UniversityIndiana238$106 million
Regents of the University of MichiganMichigan250$101 million
University of California, San DiegoCalifornia114$96.4 million
The Trustees of the University of PennsylvaniaPennsylvania59$80.6 million

Top states: California ($485 million), Texas ($346 million), New York ($297 million), Pennsylvania ($269 million), Massachusetts ($265 million).

Applying now

This notice no longer takes applications. Apply under the newer notice, NSF 27-500, which is open now.

The notice on Grants.gov keeps its full text and attachments, which is useful for planning a resubmission.

Questions people ask

Is NSF PD-21-1443 still open?

No. It is no longer open on Grants.gov. A newer notice is open: NSF 27-500, closes January 29, 2027 (83 days left).

Who can apply for Fluid Dynamics?

U.S. National Science Foundation accepted applications from any type of organization.

What is the deadline for Fluid Dynamics?

Closed. Applications are no longer accepted; the program's newer notices are on this page when there are any.

How much funding is available?

About $9.2 million in total.

Who has won Engineering grants before?

The largest recipients over five fiscal years were Georgia Tech Research Corp, Purdue University, Regents of the University of Michigan. The program made 11,244 awards worth $4.3 billion in that time.

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