Abstract
Recently, unsteady flow rate measurement of gases is very important in the various industrial fields. However, there is no way to calibrate and to examine the unsteady flow rate of gases experimentally. As a result, there is no test bench for the unsteady fl ow rate measurement of gases.In this paper, we developed a new type of unsteady flow generator for gases. Especially, we realized to generate the unsteady fl ow of gases continuously. Then, we verified experimentally the generated unsteady flow rate using a laminar flow meter that has quick response up to 50 [Hz]. Moreover, we investigated the heat transfer in the generator. As a result, we confirmed that this generator could generate the oscillatory flow up to the frequency of 30 [Hz], and the target flow continuously for 30 minutes. The generator is effective for the verification of the various unsteady phenomena of gases experimentally.
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