|
|
Nestacionární charakteristiky impaktního proudění do korýtkové kavity
Knob, Martin ; Antoš, Pavel ; Adamec, J.
In this contribution, the unsteady behaviour of a jet, impinging into a trough cavity is described. The mechanism of the switching of the jet is clarified and the effect of the impingement angle is discussed. The problem was studied both experimentally and numerically. The numerical investigation is performed using a commercial package Fluent 6.1, while the experimental data are obtained using the hot- wire probe. The experimental and the numerical data are compared and discussed.
|
|
|
Assessment of the sensor temperature in HWA
Antoš, Pavel
One of the key parameters in hot-wire anemometry is the temperature of the sensor. The temperature is set on CTA via the resistivity of the hot sensor. Several probes were tested using a variable temperature oil bath. Dependence of the resistivity on the temperature and means of its estimation are the subjects of the paper.
|
|
|
Comparison of experimental and numerical data in 2D impact flow
Knob, Martin ; Antoš, Pavel ; Adamec, J.
In the contribution, the experimentally obtained and the numerically computed data in a two- dimensional impinging jet flow are compared. The calculations were performed using a commercial solver Fluent v. 6.1, while the experimental data were obtained using a hot- wire probe. In the calculations, both the k-SST and the RSM models of turbulence were employed. The comparison has been done for three various jet hydraulic diamater and jet mean velocity based Reynolds numbers, 2800, 8400 and 1400, respectively.
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
guest ::
RSS feed.