Research

HWA is a fast-response technique which provides detailed information about instantaneous velocity and other properties like turbulence intensity in one, two or three dimensional gas and/or liquid flows (HWA probe can be in a form of one, two or three dimensional). The principle of hot-wire anemometer is based on convective heat transfer from a heated element placed in the fluid flow and any changes in the fluid medium will cause a change in heat loss from the sensor. It consists of constant temperature anemometer (CTA) unit with a hot-film probe, data acquisition (DAQ) system and computer. The hot-film probe consists of a sensor (a small electrically heated wire exposed to the fluid flow which can be in the form to provide one, two or three dimensional flow structure) and electronics which converts sensor output into a useful electric signal.