pressure drop

Application of CFD Numerical Simulations and Shape Optimization to Modify the Flow Characteristics of Throttle Valves

The aim of the study was to perform a numerical analysis using the CFD method of oil flow through a hydraulic valve gap and to perform an optimisation of the gap shape with a view to linearising the valve characteristics. As part of the work, a flow analysis of the valve was carried out using numerical simulations. This made it possible to develop the characteristics of the studied valve.

Tapered bubble column using pseudoplastic non-newtonian liquids – empirical correlation for pressure drop

Experimental studies on the frictional pressure drop in two tapered bubble columns using non-Newtonian pseudoplastic liquid have been reported. The effects of taper angle on frictional pressure drop have been investigated. Empirical correlation has been developed for the prediction of the frictional pressure drop as a function of various measurable parameters of the system. The correlation is statistically acceptable.