Helmar Carl

TL;DR: The evolution of the structure of a gas-liquid flow in a large vertical pipe of 195 mm inner diameter was investigated at the TOPFLOW test facility in Rossendorf as discussed by the authors.

TL;DR: In this paper, air-water two-phase flow tests in a large vertical pipe of 194.1mm inner diameter (i.d.) are reported, close to the outlet of a 9m-tall test section, two wire-mesh sensors are installed.

TL;DR: In this paper, an experimental investigation on the air/water counter-current two-phase flow in a horizontal rectangular channel connected to an inclined riser has been conducted, where a high-speed camera in the bended region of the hot leg, delivering a detailed view of the stratified interface as well as of dispersed structures like bubbles and droplets.

TL;DR: The TOPFLOW (TwO Phase FLOW) test facility at Forschungszentrum Rossendorf as discussed by the authors is a multipurpose thermal-hydraulic test facility for the investigation of generic and applied steady state and transient two phase flow phenomena and the development and validation of models of Computational Fluid Dynamic (CFD) codes.

TL;DR: The TOPFLOW test facility at the Forschungszentrum Rossendorf (FZR) is a large scale test facility for thermalhydraulic single effect tests.