The present article investigates the turbulent wall pressure fluctuations due to flow through
single-hole sharp-square-edged orifices (opening area ratios of 11%, 20% and 31%) in a …

The monitoring of tiny particles in multiphase pipe flow is widely encountered in industry. In
this paper, the identification and characterization of solid particles suspended in sand-water …

The semi-empirical scaling law by Nelson and Morfey [1] predicts the noise generation from
constrictions in ducts with low Mach number flows. The results presented here demonstrate …

The semiconductor industry demands CPUs and memory chips which significantly
outperform the previous generations both in terms of efficiency and performance. This …

Single-hole orifices are often used for measuring flow rate or controlling the static pressure
in cooling water pipes. However, these orifices disturb the flow in the pipes and cause flow …

More energy efficient fans, ie larger sizes running at lower speeds, in Heating Ventilation
and Air Conditioning (HVAC) systems decrease the fan noise and increase the importance …

Broadband turbulent noise can lead to fluid-acoustic and fluid-structure interaction and
ultimately to mechanical failure of pipe systems. In HVAC (Heating Ventilating and Air …

This paper investigates the possibilities of noise prediction in Heating Ventilation and Air
Conditioning (HVAC) systems using semi empirical scaling laws. An approach is presented …