Recent content by Adilah

Hi. I was measuring the mass flow rate in kg/s, = density*velocity*area (orifice size). Thus same mass flow rate from the blower, but controlling the orifice size. So, probably due to both venturi effects and squeezing more mass per second through the smaller opening.Thanks to you both...

Hi, I used a blower to flow air across an open duct through a nozzle. By using a gate valve, the mass flow rates were controlled. I took measurement in 3 different locations along the ducts. But, why by decreasing the mass flow rate, the air velocity was increased? It is just happened for the...

Hi Russ, Thank for your reply. May I know what capacity you mean?

Hi, I'm wondering if a vacuum pump outlet air could be used as a blower? I have a small open-type wind tunnel that have been used with the vacuum pump by sucking the surrounding air. Could I use the outlet air from the pump to work as a blow-down wind tunnel? Thanks