CFD analysis of flow in a single-blade impeller

Kurilla, Matej; Knížat, Branislav; Olšiak, Róbert; Slovák, Pavol

doi:10.1063/1.5114751

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…For each fluid domain a specific turbulent model must be chosen for the calculation. In this case, the Baseline Explicit Algebraic Reynolds Stress Model (BSL EARSM) was selected for fluid domains and Stage (Mixingplane) was selected for interfaces between each of the domains [6]. The Inlet pipe and Volute domains were set as stationary, whereas the Impeller domain had a rotational speed of 1500 revolutions per minute, which is the same as the real pump featured in the test.…”

Section: Inlet Pipe 463914mentioning

confidence: 99%

CFD Analysis of Impeller Trimming

2020

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Impeller trimming is a key impeller modification. It allows the best efficiency point (BEP) to be moved towards the region of lower flowrate and height, thus optimizing pump performance for specific piping systems. The paper deals with prediction of trimming results using CFD methods. Experience shows that modification of the BEP position depends on the trimming method as well as on the pump type and its specific speed. The analysed pump is of diagonal type with a specific speed of nb = 0.168. Its impeller is of a 4-blade design and a spiral casing is used as a volute. Seven cases of trimming are presented (including a non-trimmed original version). The paper compares CFD obtained data and data measured on an experimental stand. Additionally, the approach to CFD analysis, as well as the use of a turbulence model and characteristics of internal pump volume meshing are described.

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Section: Inlet Pipe 463914mentioning

confidence: 99%

CFD Analysis of Impeller Trimming

2020

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“…Kurilla et al [6] showed different approaches of the single-blade pump steady state numerical simulation and the best agreement was attained with the BSL EARSM turbulence model and the Stage-Interface.…”

Section: Introductionmentioning

confidence: 99%

Approach to 3D Unsteady CFD Analysis of a Single-Blade Pump

2020

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Single-blade centrifugal pumps are hydraulic machines used in many industrial areas. A unique screw shaped blade enables liquids containing solids and fibrous matters to be pumped. Owing to good pump hydraulic properties on the one hand and unfavourable impeller mechanical properties on the other have single-blade pumps become recently more interesting for researchers regarding the CFD simulations. In this case a conventional CFD approach for multi-blade pumps cannot be applied due to the lack of symmetry of the single-blade impeller. Possible approaches to the CFD simulation of a single-blade impeller in the Ansys Fluent and the Ansys CFX are compared in this paper. A comparison of two CFD meshing tools showed substantial element number decrease of the whole CFD model. This paper presents also the laboratory experiment results of the investigated single-blade pump. The paper describes a new approach to the single-blade CFD simulation through Ansys Fluent which is faster and more user-friendly then the conventional approach.

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