title: ÐÐ²ÑÐ¼ÐµÑÐ½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð² Ð¿Ð¾ÑÑÐ½ÐµÐ²Ð¾Ð¼ Ð°ÐºÑÑÑÐ¸ÑÐµÑÐºÐ¾Ð¼ Ð½Ð°Ð³Ð½ÐµÑÐ°ÑÐµÐ»Ðµ Ð³Ð°Ð·Ð°
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: Two-dimensional simulation of processes in piston acoustic supercharger
Creators: name: ÐÐ°Ð¹ÑÐ°Ð¼ÑÐºÐ¾Ð², Ð¢Ð°ÑÐ»Ð°Ð½
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: 2023
Subjects: ÐÐ°Ð³Ð½ÐµÑÐ°ÑÐµÐ»Ð¸
ÐÐ¾ÑÑÐ½Ð¸
ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð°Ñ Ð´Ð»Ð¸Ð½Ð° ÑÑÑÐ±Ñ
ÑÐ¸Ð½ÑÐµÑÐ¸ÑÐµÑÐºÐ°Ñ ÑÑÑÑÑ
ÑÑÑÑÐ¹Ð½ÑÐµ Ð¿Ð¾ÑÐµÑÐ¸
Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÑ
ÑÐ½ÐµÑÐ³Ð¾ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÑ
effective tube length
synthetic jet
jet losses
productivity
energy efficiency

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description: The given work is devoted to the first existing experience of numerical modeling of a piston acoustic supercharger (PAS) â a gas pumping device consisting of a piston, a working cylinder, a conical adapter and a semi-open tube with the resonant piston oscillation frequency to produce a strong synthetic jet, to elaborating for this of computationally economical hybrid two-dimensional-quasi-one-dimensional computational approach, to determining of the dependence of the amplitude characteristics of the flow on a special parameter â the ratio of the effective piston displacement amplitude to the effective tube length, and to determining of the optimal geometric parameters of the receiving orifice of the gas intake box in terms of efficiency. As a result of this work, the following was achieved: the elaboration of this computational approach was successfully carried out, an algorithm for varying the parameters of the numerical scheme was found to suppress the very strong scheme oscillations that occurred, the 2nd approximation order in space, grid convergence by resolution on the tube length and in time, and an error of 3.1% compared with the available experiment were achieved; for a purely quasi-one-dimensional formulation within the inner region, under special boundary conditions at the boundary with the outer region to account for the so-called jet losses, the capability of a high degree of coincidence of the results with the hybrid formulation was demonstrated; the dependence of the amplitude characteristics of the flow only on the above parameter, in the area of the internal flow, a qualitative correspondence of the theory with the calculation in terms of amplitude characteristics, and in the area of the external flow â satisfactory quantitative coincidence were established; the independence of the structure of the near field of the synthetic jet from the above parameter and the universality of approximately determined optimal values of the radius of the receiving orifice (1.25 times radius of the tube) and the distance from it to the open end of the tube (5 radii of the tube) were established; the confirmation of the theoretically stated efficiency of the PAS in terms of energy consumption and of the theoretically stated assertion of several times greater efficiency of the PAS as a gas pumping device compared to a reciprocating compressor was established, but at the same time â theoretical overestimation by up to 1.5 times of the volume of gas pumped by the PAS per unit time due to the approximate nature of the theory.