Blunt-body wave drag reduction using focused energy deposition

被引：121

作者：

Riggins, D ^{[1
]}

Nelson, HF ^{[1
]}

Johnson, E ^{[1
]}

机构：

[1] Univ Missouri, Dept Mech & Aerosp Engn & Engn Mech, Rolla, MO 65409 USA

来源：

AIAA JOURNAL | 1999年 / 37卷 / 04期

关键词：

D O I：

10.2514/2.756

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

A parametric computational study of energy deposition upstream of generic two-dimensional and axisymmetric blunt bodies at Mach numbers of 6.5 and 10 is performed utilizing a full Navier-Stokes computational fluid dynamics code. The energy deposition modifies the upstream shock structure and results in large wave drag reduction and very high power effectiveness. Specifically, drag is reduced to values as low as 30 % of baseline drag (no energy deposited into flow) and power effectiveness ratios (ratio of thrust power saved to power deposited into the flow) of up to 33 are obtained. The fluid dynamic and thermodynamic bases of the observed drag reduction are examined.

引用

页码：460 / 467

页数：8

共 12 条

[1]

[Anonymous], 980333 AIAA

[2]

BATDORF SB, 1970, 701323 AIAA

[3]

Billig F S., 1967, J SPACECRAFT ROCKETS, V4, P823

[4] SHOCK-WAVE SHAPES AROUND SPHERICAL-AND CYLINDRRICAL-NOSED BODIES [J].

BILLIG, FS .

JOURNAL OF SPACECRAFT AND ROCKETS, 1967, 4 (06) :822-&

[5]

BUSHNELL DM, 1990, 901596 AIA

[6]

DRUMMOND JP, 1986, 861427 AIAA

[7]

HUTT CR, 1989, AERONAUTICAL J ROYAL, V93, P229

[8]

MILLER DS, 1969, TND5582 NASA

[9]

MILLER DS, 1970, 70903 AIAA

[10]

Mishin G. I., 1997, 972298 AIAA

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