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Rarefied aerodynamic characteristics of aero-space-planes: a comparative study of two gas–surface interaction models

Zuppardi, Gennaro and Morsaa, Luigi and Savino, Raffaele and Sippel, Martin and Schwanekamp, Tobias (2015) Rarefied aerodynamic characteristics of aero-space-planes: a comparative study of two gas–surface interaction models. European Journal of Mechanics B-Fluids (53), pp. 37-47. Elsevier. DOI: 10.1016/j.euromechflu.2015.04.003 ISSN 0997-7546

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Official URL: http:\\www.elsevier.com/locate/ejmflu

Abstract

Accurate computations of aerodynamic forces are very important for the design of aero-space-planes. In rarefied flow, the computation of momentum and energy transfer between the flow and the vehicle’s surface occurs in two steps: incidence and re-emission of gas molecules. While incidence is well understood, the re-emission process is still today not yet completely clear, thus many models have been developed. In the present paper, the effects of the re-emission models by Maxwell and by Cercignani–Lampis–Lord have been compared by means of direct simulation Monte Carlo (DSMC) codes. Two different study cases have been considered: a complete aero-space-plane and a wing profile. Computer simulations have been carried out using two DSMC codes to investigate hypersonic flows at an altitude of 120 km where for both the wing section and the vehicle the flow is in transitional regime. The results pointed out that the influence of the interaction models, considering specular, semi-specular and full diffusive re-emission is pretty strong, while the Cercignani–Lampis–Lord and the Maxwell models are almost equivalent.

Item URL in elib:https://elib.dlr.de/101480/
Document Type:Article
Title:Rarefied aerodynamic characteristics of aero-space-planes: a comparative study of two gas–surface interaction models
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Zuppardi, GennaroDepartment of Industrial Engineering, University of Naples ‘‘Federico II’’, 80125 Naples, ItalyUNSPECIFIED
Morsaa, LuigiDepartment of Industrial Engineering, University of Naples ‘‘Federico II’’, 80125 Naples, ItalyUNSPECIFIED
Savino, RaffaeleDepartment of Industrial Engineering, University of Naples ‘‘Federico II’’, 80125 Naples, ItalyUNSPECIFIED
Sippel, MartinDLR, Space Launcher System Analysis (SART) DLR, 28359 Bremen, Germanyhttps://orcid.org/0000-0001-7356-7575
Schwanekamp, TobiasDLR, Space Launcher System Analysis (SART) DLR, 28359 Bremen, GermanyUNSPECIFIED
Date:10 April 2015
Journal or Publication Title:European Journal of Mechanics B-Fluids
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1016/j.euromechflu.2015.04.003
Page Range:pp. 37-47
Publisher:Elsevier
Series Name:European Journal of Mechanics B/Fluids
ISSN:0997-7546
Status:Published
Keywords:Gas–surface interaction models; Direct simulation Monte Carlo method; Aerodynamic coefficients of an aero-space-plane
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Systemanalyse Raumtransport
Location: Bremen
Institutes and Institutions:Institute of Space Systems
Deposited By: Vormschlag, Nele Marei
Deposited On:14 Jan 2016 12:03
Last Modified:06 Sep 2019 15:16

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