Title : ( Numerical investigation of delta and arrow wings with various sweep angles at different angles of attack and Mach numbers )
Authors: Mahmoud Pasandidehfard , maryam moeinfar , Seyed Morteza Abdollahian ,
Full TextAbstract
In this paper flow fields over delta and arrow wings with various sweep angles and thicknesses at different angles of attack and Mach numbers from subsonic to supersonic flow are computationally simulated. There is a sudden change in flow fields between the free stream Mach number of 0.8 and 1.2. The simulation results at different flow conditions, show that this nonlinear behavior occurs as expansion waves from the leading edge accelerate the flow and shift the share layer closer to the surface when the Mach number at the leading edge becomes supersonic. The aerodynamic characteristics have a different trend below and above the free-stream Mach number of 1.0. So when the flow regime becomes supersonic, aerodynamic characteristics have nonlinear behavior.
Keywords
, Delta wing , Arrow wing , Numerical investigation , Aerodynamic characteristics
@inproceedings{paperid:1027445,
author = {Pasandidehfard, Mahmoud and Moeinfar, Maryam and Abdollahian, Seyed Morteza},
title = {Numerical investigation of delta and arrow wings with various sweep angles at different angles of attack and Mach numbers},
booktitle = {The 10th Iranian Aerospace Society Conference},
year = {2011},
location = {تهران, IRAN},
keywords = {Delta wing - Arrow wing - Numerical
investigation - Aerodynamic characteristics},
}
%0 Conference Proceedings
%T Numerical investigation of delta and arrow wings with various sweep angles at different angles of attack and Mach numbers
%A Pasandidehfard, Mahmoud
%A Moeinfar, Maryam
%A Abdollahian, Seyed Morteza
%J The 10th Iranian Aerospace Society Conference
%D 2011
