this paper addresses an experimental investigation in the hydrodynamic behavior of a modified slotted sieve tray. slotted sieve tray (push valve sieve tray) is a sieve tray that the push valves have been utilized on the tray deck to eliminate liquid gradients and non-uniformity of liquid distribution on the tray. the air-water system was used in an industrial scale experimental rig with an inte...

The dynamic response of complex equipment under mixed-mode loading is significant for structural design. Bolted joints are the primary connection mode subsystem assembly, and degradation bolted may reduce safety reliability equipment. Iwan model widely used to describe joints, which has been continuously revised experimentally verified. classic a static that lacks predictive ability. latest can...

This paper provides an attempt to measure the pressure distribution actuated by dielectric barrier discharge (DBD) actuator. The efficacy of DBD plasmas driven by repetitive nanosecond (NS) pulses for pressure distribution is investigated experimentally in quiescent air. The NS pulse driven DBD plasma actuator (NS-DBD hereafter, transfers very little momentum to the neutral air, so the value of...

In many biological and social systems, where the ideal of heritance and aberrance exist at the same time, normal distribution failed in describing the distributions of variables. In stead, many real data as well as simulations indicate that log-normal distribution and power-law distribution can characterize many properties of this kind of systems. In this paper, the failure of normal distributi...

The flow behavior around a cam shaped tube in cross flow has been investigated experimentally using flow visualization and pressure distribution measurement. The range of attack angle and Reynolds number based on an equivalent circular diameter are within 0 ≤ α ≤ 360˚ and 2 x 104 < Reeq < 3.4 x 104, respectively. The pressure drag features are clarified in relation to the flow behavior around t...