title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¿ÑÐ¾ÑÐ¾ÑÐ½Ð¾Ð¹ ÑÐ°ÑÑÐ¸ ÑÐµÐ½ÑÑÐ¾Ð±ÐµÐ¶Ð½Ð¾Ð³Ð¾ Ð½Ð°ÑÐ¾ÑÐ° Ð½Ð¸Ð·ÐºÐ¾Ð¹ Ð±ÑÑÑÑÐ¾Ñ Ð¾Ð´Ð½Ð¾ÑÑÐ¸ Ñ Ð½ÐµÐ·Ð°Ð¿Ð°Ð´Ð°ÑÑÐµÐ¹ ÑÐ¾ÑÐ¼Ð¾Ð¹ Ð½Ð°Ð¿Ð¾ÑÐ½Ð¾Ð¹ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Development of the flow part of a specific low-speed centrifugal pump with a stable form of pressure characteristic
Creators: name: ÐÐ°ÑÐ°ÑÐ¾Ð², ÐÐ»ÐµÐºÑÐ°Ð½Ð´Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: ÐÐ°ÑÐ¾ÑÑ ÑÐµÐ½ÑÑÐ¾Ð±ÐµÐ¶Ð½ÑÐµ
ÐÐ°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
Ð½Ð°Ð¿Ð¾ÑÐ½Ð°Ñ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ°
Ð¼Ð¾Ð´ÐµÐ»Ñ ÑÑÑÐ±ÑÐ»ÐµÐ½ÑÐ½Ð¾ÑÑÐ¸
head characteristic
turbulence model

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description: In this work the research of different mathematical models for hydrodynamic calculation of flow parts is carried out: simplified formulation without gap and clearances seals, formulation with gap and with indication of mass flow rate of liquid to take overflows through front and rear seals, as well as formulation representing a closed loop, which allows to model the flow in clearances seals at once at CFD-calculation of the flow part of the pump. Recommendations are given on the use of the investigated mathematical models in the construction of predictive characteristics of specific low-speed centrifugal pumps. The influence of geometrical parameters on the type of pressure characteristic using the developed mathematical model of centrifugal pump is carried out. Among the investigated parameters the number of vanes, blade angle at inlet and outlet are presented. The positive effect of reducing the blade angle at the outlet and the number of blades on the type of pressure response was confirmed. Based on the results obtained, adjustments were made to the original designed pump, which achieved a stable pump characteristic.