The HM 250.02 is used to investigate the flow profile. Differences in the flow formation can thus be detected by the use of measurement technique.
The experimental unit consists of a pipe section with a conical inlet section. In the experiment, the flow is accelerated in the conical inlet section. The flow profile develops in the subsequent pipe section. At the end of the pipe section, a vertically movable Pitotstatic tube is inserted into the flow. The position of the Pitotstatic tube is determined with a digital dial gauge and adjusted by means of a fine hand adjustment. The Pitotstatic tube measures the dynamic pressures at different positions of the diameter of the pipe section. The velocity profile in pipe flow is determined from the measured pressures. The pipe section opens into a stabilisation tank with a transparent front panel to observe the measuring device.
In addition, the influence of viscosity on the flow formation can be investigated. For this purpose, the water is heated with a heater integrated in the base module, thus changing viscosity.
The accessory HM 250.02 is easily and safely positioned on the worktop of the HM 250 base module. Via RFID technology the accessories are automatically identified, the appropriate GUNT software is loaded and an automatic system configuration is performed. The intuitive user interface guides through the experiments and displays the measured values graphically. For tracking and evaluation of the experiments, up to 10 external workstations can be used simultaneously using the local network via LAN connection. The base module supplies the water and is used to adjust the flow rate and temperature. Flow rate, pressure and temperature measurements are also carried out via the base module.