The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The current research focuses on understanding the transition of pipe flow by using a triggering device. In particular, a transition rod was installed within the CoSma‐Pipe at the Brandenburg University of Technology Cottbus‐Senftenberg. The effect of the transition rod, which has a variable height perpendicular to the axis at the pipe inlet, was examined in a range of 2,500 ≤ Re ≤ 31,000 where Re...
Thermo‐electrohydrodynamic convection is investigated in a shell with central force field to investigate convective pattern formation for potential heat transfer application and small scaled laboratory experiments e.g. the modelling of convection in planetary interiors or atmospheres. To induce TEHD convection the outer and inner shells are heated at different temperatures whereas an alternating electric...
The aim of this study is to report about the large‐scale pipe flow structures using the two‐point velocity correlations at a radial location of y/R = 0.5 and 41 azimuthal positions for shear Reynolds number Reτ ≈ 4000. The streamwise velocity component was measured, utilizing two single‐wire probes, simultaneously, based on various azimuthal probe separations. One dimensional pre‐multiplied energy...
The main objective of the current work is to better understand the interaction of pipe flow large‐scale structures in the outer region with the near‐wall turbulence. To do so, a decomposition of velocity fluctuating signals has been adopted. Thus, the streamwise velocity fluctuation has been measured for three Reynolds numbers using two pipes located at the Brandenburg University of Technology (BTU)...
In the present investigation in turbulent pipe flow we study the contribution of turbulent structures, such as Large scale motion (LSM) and very large scale motion (VLSM) to the turbulent kinetic energy. Hence, the streamwise velocity fluctuation is measured using a single hot wire anemometer in the Cottbus Large Pipe Facility test facility (CoLaPipe) at Brandenburg University of Technology Cottbus‐Senftenberg...
The present work focuses on spectral analysis of the streamwise velocity fluctuations obtained, utilizing the Cottbus Large Pipe (CoLaPipe) test facility for R+ ≤ 3500, where R+ is the Reynolds number based on the wall friction velocity, uτ, and the pipe radius, R. Measurements of the streamwise spectra have been conducted using a single hot‐wire probe. Few runs have been also performed using Particle...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.