Sensitivity of three-segment electrodiffusion probes to eddy shedding
| Autor: | V. Sobolik, J. Pauli, Ulfert Onken, J. Tihon |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Fluid Flow and Transfer Processes
Physics Jet (fluid) business.industry Computational Mechanics General Physics and Astronomy Mechanics Vortex shedding Spectral line Vortex Physics::Fluid Dynamics symbols.namesake Optics Mechanics of Materials Turbulence kinetic energy symbols Strouhal number Transient (oscillation) Sensitivity (control systems) business |
| Zdroj: | Experiments in Fluids. 16:368-374 |
| ISSN: | 1432-1114 0723-4864 |
| DOI: | 10.1007/bf00202060 |
| Popis: | The influence of eddy shedding on the instantaneous readings of a three-segment cylindrical electrodiffusion velocity probe was investigated in an immersed jet with a very low turbulence intensity, σ = 1.2%. The velocity fluctuations measured by the three-segment probe were smaller than 2.6%, and the maximum error in the flow angle estimation was 2∘. Vortices with the Strouhal frequency were detected by a simple electrodiffusion probe placed downstream of the three-segment probe, but no peaks with this frequency were found on the frequency spectra of the three-segment probe. From the probe response to a stepwise change of the polarization voltage the characteristic times of the transient process were estimated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink