The volute casing material and geometry of the pump were investigated by Lorett, J.A. Improved pump performance, computational cost, and decreased time Maximum equivalent stress of blades: reducedĪrea of cross-section volute casing, impeller side wall gap, volute casing tongue Knowledge mining method, NSGA-II and RBF hybrid algorithm Methods of surface response, genetic algorithm Rotational speed affecting the flow rate uncertain results High hub taper angles, three blades proposed for improved pump performance Non-dominated sorting genetic algorithm (NSGA-II)īlade: maintained short (in terms of length, sweep angle, tip clearance gap, and thickness). Numerical simulation and experiment (DOE, RSM)ģD RANS 1-phase turbulent simulations, CFD The diffuser of the multistage centrifugal pumpĬomputational fluid dynamics -CFD/in-house surrogate-based optimization code/experiment Many approaches for optimizing centrifugal pumps are briefly shown in Table 1. They also found that the edges of a centrifugal pump should have more back and forth movement compared to the central line. The authors tried to improve the centrifugal pump efficiency ( η) and head ( H) while reducing the loss of net positive suction head required (NPSHr) at the double-assorted stream rates. inspected a smoothing-out technique on centrifugal pumps using 3D models for numerical programming with many genetic algorithms. The improvement of centrifugal pump casing using a multi-objective is a complex problem that has been assessed in several studies so far. With this approach, in most cases, the optimal strategy is always considered the tool for solving global optimization problems. In the next step, the optimal strategy is applied to obtain optimal parameters, which are the best references for practical design and manufacture. Firstly, a model designed using the numerical method is used for simulation to assume the best dimensions of the structural body. The optimum design for a centrifugal pump casing usually requires two steps. It is worth mentioning that designed products do not require the designers’ skills and experiences. The specialized design requirements include smoothing out within a short time and at a low cost. Optimum design in the mechanical field is attracting significant interest in modern research. This design method is currently commonplace in not just mechanical designs but other related domains as well. Considering the above-mentioned practical difficulties, we performed this study using a multi-optimization design approach to overcome these limitations during the design procedure. Design frameworks are imperative to instruct the designers in doing their tasks step by step. The impeller is the rotary component, and the volute casing is the static one. Centrifugal pumps are rotational devices with two essential components: an impeller and its volute casing.
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