Details

Title

A model of gas flow with friction in a slotted seal

Journal title

Archives of Thermodynamics

Yearbook

2016

Numer

No 3

Publication authors

Keywords

General Physics and Astronomy

Divisions of PAS

Nauki Techniczne

Abstract

<jats:title>Abstract</jats:title><jats:p>The paper discusses thermodynamic phenomena accompanying the flow of gas in a slotted seal. The analysis of the gas flow has been described based on an irreversible adiabatic transformation. A model based on the equation of total enthalpy balance has been proposed. The iterative process of the model aims at obtaining such a gas temperature distribution that will fulfill the continuity equation. The model allows for dissipation of the kinetic energy into friction heat by making use of the Blasius equation to determine the friction coefficient. Within the works, experimental research has been performed of the gas flow in a slotted seal of slot height 2 mm. Based on the experimental data, the equation of local friction coefficient was modified with a correction parameter. This parameter was described with the function of pressure ratio to obtain a mass flow of the value from the experiment. The reason for taking up of this problem is the absence of high accuracy models for calculating the gas flow in slotted seals. The proposed model allows an accurate determination of the mass flow in a slotted seal based on the geometry and gas initial and final parameters.</jats:p>

Publisher

The Committee on Thermodynamics and Combustion of the Polish Academy of Sciences

Date

2016

Identifier

eISSN 2083-6023 ; ISSN 1231-0956

DOI

10.1515/aoter-2016-0022

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