Facilities

The NDTL facilities on the Notre Dame campus and at Ignition Park offer the following unique capabilities:

 Hot-Annular Nozzle Cascade (HANC)

Hot-Annular Nozzle Cascade (HANC)

The Hot-Annular Nozzle Cascade (HANC), located on the Notre Dame campus, is a closed-loop tunnel for investigation of aero and thermal performance of turbine nozzles.

Core temperatures of up to 700° F in combination with secondary and cooling flows provides for engine-relevant turbine-inlet temperature distributions, and vane cooling density ratios.

Transonic Axial Compressor (TAC) and Front-Stage Core Compressor (FSCC)

Transonic Axial Compressor (TAC) and Front-Stage Core Compressor (FSCC)

The Transonic Axial Compressor (TAC) and Front-Stage Core Compressor (FSCC) facilities are designed to operate single-stage axial compressors. The modular design allows a wide range of test-articles to be installed using a cantilevered shaft design.

The shaft is levitated on a magnetic bearing system that allows precise positioning of the compressor rotor within the casing. The TAC facility (Notre Dame campus) can operate compressors that require up to 400 hp, with rotational speeds up to 17,000 rpm. The FSCC drive system (Ignition Park) provides up to 700 hp with speeds up to 28,000 rpm. Both facilities have been utilized for industrial and Department of Defense (DOD) testing programs for technology development.

 

Transonic Research Turbine (TRT)

Transonic Research Turbine (TRT)

The Transonic Research Turbine (TRT) on the Notre Dame campus is a single stage turbine facility for research and testing of either HPT or LPT designs. The air moving equipment provides for a pressure ratio of 2.5 at 11 lbm/sec.

Like the compressor facilities, the shaft is magnetically levitated for precise rotor positioning and whirl control. The modular design allows for rapid hardware changes and extremely high build-build repeatability in aero performance, efficiency, and heat-transfer measurements. This has allowed unprecedented ability to influence advanced technology for future engine production. More than 10 test articles have been installed and tested in the last several years for industry and DOD testing.

 

Facility Air Plant

The Facility Air Plant at Ignition Park is capable of producing compressed air up to 48 lbm/sec (38,000 SCFM) at pressures up to 180 psia and temperatures ranging from 100-1200°F (38-650°C).

A vacuum system provides pull pressures as low as 2 psia at 10 lbm/sec or 10 psia at 50 lbm/sec. This provides a unique and flexible opportunity for the study of a wide range of turbomachinery (and related) applications, including rotating turbines, nozzle flow tests, turbocharger testing and research, heat-rejection and regeneration systems, high-speed jet acoustics, and moderate-scale wind tunnel studies up to Mach 2.5.

Multi-Stage Turbine Test

Two Multi-Stage Turbine Test cells at Ignition Park can operate a wide range of single or multi-stage HPT and LPT test articles with AC dynamometers of up to 5.2 MW.

The turbine test cells are powered by a significant air plant capability to provide total-to-total pressure ratios as high as 30 with inlet temperatures to 1200°F at a wide range of Reynolds numbers. Multiple secondary flow circuits provide for the operation of fully cooled and purged turbine test articles with engine relevant density ratios.

Multi-Stage Compressor

A Multi-Stage Compressor cell allows for fans and compressors to be operated with power levels up to 12,000 hp. The facility can operate in either open or closed-loop (with up to 12 MW of heat rejection) mode for control of compressor inlet temperature and pressure.

Computational Center

The Computational Center operates a medium-size HPC cluster utilizing the shared memory paradigm for parallel computations. 

The cluster consists of 480 cores connected by the high throughput Infinyband network switches. The cluster is controlled through the head node and it is capable of addressing up to 1 TB memory. 

In addition to the medium-size cluster, a larger cluster of up to 4,096 cores is planned in the near future. The computational center has access to HPC license of Fluent and CFX codes divided in 15 different sessions. Several validated in-house codes are available for the efficient simulation of the high-speed phenomena including thermoacoustics, reacting and non-reacting flows in transonic regimes.