A Method of Temperature and Velocity Measurements in a Heated Gas Flow (Hot Wire Thermometer)

摘要

In the flow field of temperature difference exists, the exact measurements of mean and fluctuating values of temperature and velocity by an ordinary hot wire or other instruments would make the matter still difficult. The present paper deals with a newly produced sensor and application of it for actual measurements of the temperature and velocity in the mixing flow field of two gases of different temperature. The gases in the present investigation are hot air and air of room temperature. Regarding a newly produced sensor, it may have a high characteristics for quick response to follow the temperature fluctuation, which would depend on the suction nozzle diameter of surrounding gas and inhale velocity.