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RISLarge Eddy Simulation of a Condensing Wet Steam Turbine Cascade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The influence of turbulence modeling approach by means of (U)RANS and large eddy simulation (LES) on the overall modeling of turbulent condensing wet steam flows is investigated using the example of a low-pressure steam ...
Numerical Investigation of a Partially Loaded Supersonic Organic Rankine Cycle Turbine Stage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The organic Rankine cycle (ORC) represents an emerging technology aimed at exploiting lower temperature heat sources, such as waste heat in industrial processes or exhaust heat in combustion engines. One key aspect of this ...
On Integrated Fluid Screening and Turbomachinery Design for Optimized Industrial Heat Pumps
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work presents an approach to the contextual integration of fluid selection and compressor design for the cycle design of efficient industrial heat pumps. The vapor-compression cycle of an air–water heat pump operated ...
A Study on Quantities Driving Maintenance, Repair, and Overhaul for Hybrid-Electric Aeroengines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Hybrid-electric propulsion for commercial aircraft is currently a key industry interest. Consequently, publications on its design and performance estimation are manifold. However, models addressing characteristics of ...
Experimental and Numerical Investigation of Secondary Flow Structures in an Annular Low Pressure Turbine Cascade Under Periodic Wake Impact—Part 2: Numerical Results
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this work, we present the results of the numerical investigations of periodic wake–secondary flow interaction carried out on a low pressure turbine (LPT) equipped with modified T106-profile blades. The numerical predictions ...
Experimental and Numerical Investigation of Secondary Flow Structures in an Annular Low Pressure Turbine Cascade Under Periodic Wake Impact—Part 1: Experimental Results
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experimental studies have been conducted on a modified T106 low pressure turbine (LPT) profile in an annular 1.5 stage axial turbine rig at the Chair of Thermal Turbomachines and Aeroengines, Ruhr-Universität Bochum. The ...
On the Periodically Unsteady Interaction of Wakes, Secondary Flow Development, and Boundary Layer Flow in An Annular Low-Pressure Turbine Cascade: An Experimental Investigation
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: The experimental results reported in this contribution address the time-dependent impact of periodically unsteady wakes on the development of profile and end wall boundary layers and consequently on the secondary flow ...