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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 ...
Using Pseudotime Marching for the Solution of Harmonic Balance Problems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The aim of this paper is to study approaches to implement implicit pseudotime marching for the harmonic balance system in the frequency domain. We first give a motivation for using pseudotime marching as a solution technique. ...
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 ...