Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Год издания: 2020

Идентификатор DOI: 10.1088/1757-899X/862/2/022032

Аннотация: The research elaborates the main characteristics of the liquid propellant engines; it determines that some turbo pump units have got the frequency of rotor spinning up to 100 000 and even 120 000 r.p.m. The authors analyse the current methodologies to specify losses connected with disc friction. The methodologies determining disc fПоказать полностьюriction coefficient often obtain criterion-empirical character, and due to increasing a number of rotor spinning of turbo pump unit of the liquid propellant engines, they reflect the specification reliability inaccurately. The research demonstrates equations to determine disk friction coefficients based on considering the theory of three-dimensional boundary layer to a rotational flow taking into account the turbulent process of velocity distribution. The authors give recommendations on determining an index of velocity distribution degree depending on Reynolds rotation criterion of a disc and plug flow.

Журнал: IOP Conference Series: Materials Science and Engineering

Выпуск журнала: 862

Номера страниц: 22032

Издатель: Institute of Physics and IOP Publishing Limited

• Zuev A A (Reshetnev Siberian State University of Science and Technologies)
• Nazarov V P (Reshetnev Siberian State University of Science and Technologies)
• Zhuikov D A (Reshetnev Siberian State University of Science and Technologies)
• Tolstopyatov M I (Reshetnev Siberian State University of Science and Technologies)
• Savelyeva M V (Reshetnev Siberian State University of Science and Technologies)
• Krasnoyarsk Science and Technology City Hall of the Russian Union of Scientific and Engineering Associations

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