In addition to its basic function, every product that incorporates fluid flow must also ensure that the fluid does not leak out, making leak testing crucial in production.The knowledge of physical phenomena behind fluid flow through a clearance is essential when establishing the fluid-tightness of a product. Since leak testing with air is more cost efficient and practical than using water, the correlation between the flow rate of the two fluids at similar conditions is very important.
This paper includes measurements of water and air flow rate through a needle valve, that was used to simulate a small clearance. The parallels between the flow rate of both fluids are established and the factors, that influence the flow rate, are given.
|
