Work

Turbine rim seal ingress mitigation in a supercritical CO2 environment via 2D CFD-based parametric design

Year: 2026

Type: article

Abstract: • Parametric 2D RANS framework evaluates 283 rim seal geometries for sCO2 turbines. • Four rim seals assessed via 3D URANS to quantify sealing effectiveness. • Selected geometries reduce required purge mass flow by 22.3%. • Higher 2D rim seal pressure drop indicates higher 3D sealing effectiveness. • sCO2 boosts cavity/platform cooling while the blade tip is the highest-risk region.

Source: International Journal of Heat and Fluid Flow

DOI: 10.1016/j.ijheatfluidflow.2026.110461

Authors: A. Rebassa, L. Tuite, G. Paniagua

Institution: Purdue University West Lafayette

Language: English

Topic: Turbomachinery Performance and Optimization

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Climate action

Open Access status: hybrid

Estimated APC paid: $3,420