Recent progress in multiphase flow simulation through multiphase pumps

Abstract

The multiphase flow pumps cover a wide range of industrial sectors extending across petrochemical, metallurgy, and dredging, chemical industry, paint, and construction. The major application is the handling of wet gas and vapor that will condense partially during the compression stage. The main progress in the area of multiphase pumps has been the innovation of a computational fluid dynamics (CFD) numerical approach to simulate three‐dimensional flows inside the pump and to predict pump performance. CFD undoubtedly constitutes one of the most promising approaches for the design, analysis, and performance assessment of complex machines. However, practical application of the CFD tool to determine the internal flow field in multiphase pumps is still far from reality owing to the limitations of a detailed three‐dimensional model of the pump and accuracy of multiphase flow simulation. This review accentuates the influence of different geometrical and dynamical parameters on the performance of the pump and the use of CFD simulation to predict the detailed flow patterns of fluid mixtures. CFD analysis has unearthed the fact that the pattern of inner flow varies with the flow rate and concentration of each phase and the rotation speed of the impeller and number of blades were also found to considerably impact pump performance.

Effect of Geometric Configuration of the Impeller on the Performance of Liquivac Pump: Single Phase Flow (Water)

“…The pump should be primed with a suitable liquid for the first installation. During the startup, excess liquid will overflow by the discharge port and the balance liquid forms a liquid ring supported by the discharge and suction port plates [13].…”

“…The pu should be primed with a suitable liquid for the first installation. During the startup, ex liquid will overflow by the discharge port and the balance liquid forms a liquid ring s ported by the discharge and suction port plates [13]. The formation of the liquid ring is due to the centrifugal force that seals the top e of the rotor and the lower side of the rotor boss shown in Figure 3.…”

“…Air or vapo liquid, foam, and emulsions entering the suction port is likely to be carried into th chambers and discharged from the outlet port. The large clearance between the rota and stationary parts allows the pump to handle hard solids up to 2 mm diameter [13] Figure 3. Detailed view of a Liquivac pump (Reprinted with permission from ref.…”

Effect of Tip Clearance on Force Characteristics of Helical Axial-Flow Blade Pumps under Cavitation Conditions

“…At present, some scholars have conducted research on SABPs. Deepak Meerakaviyad et al [1] reviewed the latest research advances in spiral blade pumps and used a computational fluid dynamics (CFD) method to predict the flow behaviors of fluid mixtures. Hao et al [2] used a genetic algorithm to optimize a spiral blade pump, and the efficiency of the pump was increased by 1.91%.…”

Study of Tip Clearance on Dynamic and Static Head of a Spiral Axial-Flow Blade Pump under Cavitation Conditions

“…Some scholars have conducted research on SABP. Deepak Meerakaviyad et al [1] reviewed the latest research advances in spiral blade pumps and illustrated the feasibility of using computational fluid dynamics to forecast the detailed flow characteristics of fluid mixtures. Hao et al [2] used a genetic algorithm to improve the design of a spiral blade pump, which increased the hydraulic effectiveness of the pump by 1.91%.…”