2002
DOI: 10.1590/s0100-73862002000400004
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Three-dimensional supersonic flow over a spike-nosed body of revolution

Abstract: The unsteady, viscous, supersonic flow over a spike-nosed body of revolution is numerically investigated by solving the Navier-Stokes equations. The time-accurate computations are performed employing an implicit algorithm based on the second-order time-accurate LU-SGS scheme with the incorporation of a subiteration procedure to maintain time accuracy. The characteristics of the flow field for a Mach number of 3.0, Reynolds number of 7.87 x 10(6)/m, and angles of attack of 5 and 10 degrees are described. Self-s… Show more

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Cited by 3 publications
(2 citation statements)
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“…Comparing with the pure blunt sphere cylinders, the spikes reduce wave drag as much as 35-65%, which has been confirmed by other studies [15][16][17]. Bushnell pointed out that the effective load can be increased by 5-10% if the aerodynamic drag got discounted by as much as 1%, which is likely why so many studies have been conducted regarding spiked blunt bodies [33].…”
supporting
confidence: 60%
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“…Comparing with the pure blunt sphere cylinders, the spikes reduce wave drag as much as 35-65%, which has been confirmed by other studies [15][16][17]. Bushnell pointed out that the effective load can be increased by 5-10% if the aerodynamic drag got discounted by as much as 1%, which is likely why so many studies have been conducted regarding spiked blunt bodies [33].…”
supporting
confidence: 60%
“…In some critical cases, the spiked blunt body changed into a resistance element [15,16]. Morgenstern showed that an asymmetric flow field in a three-dimensional simulation resulted in unsteady fluctuation during flight with attack angle, leading to axial pulsation and normal forces, which resulted in an extreme disadvantage for flight and controlling [17]. Thurman [18] and Schulein [19] achieved some positive results by changing aerodynamic characteristics utilizing a rotating spike, which required a special system to control and rotate the rod and was too complicated for practical application.…”
Section: Introductionmentioning
confidence: 99%