@Article{CostaFisc:2019:PrThPa,
author = "Costa, Fernando de Souza and Fischer, Gustavo Alexandre Achilles",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)}",
title = "Propulsion and thermodynamic parameters of van der Waals gases in
rocket nozzles",
journal = "International Journal of Aerospace Engineering",
year = "2019",
volume = "2019",
pages = "3139204",
month = "Aug.",
abstract = "Propellants or combustion products can reach high pressures and
temperatures in advanced or conventional propulsion systems.
Variations in flow properties and the effects of real gases along
a nozzle can become significant and influence the calculation of
propulsion and thermodynamic parameters used in performance
analysis and design of rockets. This work derives new analytical
solutions for propulsion parameters, considering gases obeying the
van der Waals equation of state with specific heats varying with
pressure and temperature. Steady isentropic one-dimensional flows
through a nozzle are assumed for the determination of specific
impulse, characteristic velocity, thrust coefficient, critical
flow constant, and exit and throat flow properties of He, H-2,
N-2, H2O, and CO2 gases. Errors of ideal gas solutions for
calorically perfect and thermally perfect gases are determined
with respect to van der Waals gases, for chamber temperatures
varying from 1000 to 4000 K and chamber pressures from 5 to 35
MPa. The effects of covolumes and intermolecular attraction forces
on flow and propulsion parameters are analyzed.",
doi = "10.1155/2019/3139204",
url = "http://dx.doi.org/10.1155/2019/3139204",
issn = "1687-5966",
language = "en",
targetfile = "costa_propulsion.pdf",
urlaccessdate = "03 jun. 2024"
}