Linear cascade wind tunnel

Aerodynamics: Fundamental aerodynamic investigations of turbomachinery profiles

Flow Phenomena: Analysis of flow phenomena on planar blade cascades

Geometry Variants: Investigation of surface roughness and geometry variants

Profile Losses: Measurement of profile losses and wake flows

Contamination and Erosion: Studies under turbomachinery-like conditions to examine contamination and erosion behavior

Interactions: Investigation of the interactions between flow and geometry parameters, e.g., through flexible adjustment of inflow angles, pitch ratios, and blade configurations.

Periodic Flow Conditions: Analysis using static pressure taps and a Roots blower to generate uniform inflows.

Comparative Studies: Double rake probes enable the direct comparison of reference and test blades, eliminating environmental influences.

Optimization: Validation and optimization of flow properties, especially in contaminated air, using state-of-the-art measurement techniques.

Channel Dimensions: Width of 240 mm, length variable between 120 mm and 776 mm

Flexibility: Continuously adjustable inflow angles from 90° to 151° and the possibility to use half and full profiles

Contamination Analyses: Cartridge filter (SFC-16-4H55) and particle injection via a lance enable realistic erosion studies

Air Supply: Three screw compressors generate a total mass flow of up to 11 kg/s, with adjustable Mach numbers from 0.01 to 0.8 and Reynolds numbers between 100,000 and 1,200,000

Pressure measurement technology: Steady and unsteady for precise flow analysis

Hot-wire anemometry: Analysis of velocity and turbulence intensity

Laser Doppler Anemometry (LDA): Measurement of particle velocities in the flow

Particle Image Velocimetry (PIV): Visualization and measurement of complex flow fields

Background-Oriented Schlieren (BOS): Optical detection of density distributions

L2F System (L2F): Measurement of particle concentration and erosion analysis