RT Journal Article
ID 5ec0f09247b3c1a5
A1 Ivanyushkin, Dmitry Sergeevich
A1 Takovitskii, Sergey Alexandrovich
T1 NOSE PARTS OF MINIMAL WAVE DRAG WITH THE FRONT FACE AND THE POWER-LAW GENEATRIX
JF TsAGI Science Journal
JO TSAGI
YR 2009
FD 2010-07-15
VO 40
IS 5
SP 561
OP 569
K1 noses
K1 a wave drag
K1 an optimization
K1 a power low geneatrix
AB In this paper, we have considered the problem ofsearching for axisymmentrical nose parts of minimal wave drag. Optimization was realized in the class of bodies with a front face and power-law geneatrix. The radius of the front face and the power-law exponent are used as parameters of optimization. The nose parts, which were found on analytical solution of this task, were taken as initial bodies. Optimization was performed with the help of the method of cyclical coordinate-wise descent. The nose parts of the minimal wave drag have been obtained for lengthening λ = 1−8 at the Mach number M = 2 and for the range M = 1.5−4 at a fixed lengthening λ = 2. The obtained nose parts have been compared with the well-known optimal bodies on values of wave deag and geometrical parameters.
PB Begell House
LK https://www.dl.begellhouse.com/journals/58618e1439159b1f,6ab0b2cd52c5749c,5ec0f09247b3c1a5.html