Transport Phenomena Cluster

NSF's implementation of the revised 2 CFR

NSF Financial Assistance awards (grants and cooperative agreements) made on or after October 1, 2024, will be subject to the applicable set of award conditions, dated October 1, 2024, available on the NSF website. These terms and conditions are consistent with the revised guidance specified in the OMB Guidance for Federal Financial Assistance published in the Federal Register on April 22, 2024.

Important information for proposers

All proposals must be submitted in accordance with the requirements specified in this funding opportunity and in the NSF Proposal & Award Policies & Procedures Guide (PAPPG) that is in effect for the relevant due date to which the proposal is being submitted. It is the responsibility of the proposer to ensure that the proposal meets these requirements. Submitting a proposal prior to a specified deadline does not negate this requirement.

Updates to NSF Research Security Policies

On July 10, 2025, NSF issued an Important Notice providing updates to the agency's research security policies, including a research security training requirement, Malign Foreign Talent Recruitment Program annual certification requirement, prohibition on Confucius institutes and an updated FFDR reporting and submission timeline.

Synopsis

The Transport Phenomena Cluster (TPC) consists of four programs that support fundamental investigations in science and engineering. The main themes of the cluster are single- and multi-phase flow dynamics, particulate, heat and mass transfer, and combustion and fire dynamics. All these themes share, at a fundamental level, the transport of mass, species, momentum and energy. Other more specific themes for TPC include turbulence and transition, biofluids, micro-fluids, flow instabilities, multiphase flows, particle dynamics, colloidal solutions, interfacial transport, combustion science, fire prevention and suppression, convention/diffusion/radiation, thermodynamics, bio-heat and mass transport, and micro-thermodynamics.

Program contacts

See program guidelines for contact information.