A LABORATORY FRAMEWORK FOR SYNCHRONOUS NEAR/FAR-FIELD ACOUSTICS AND MHZ PIV IN HIGH-TEMPERATURE, SHOCK-CONTAINING, JETS

被引：0

作者：

Murray, N. ^{[1
]}

Lyons, G. ^{[1
]}

Tinney, C. E. ^{[2
]}

Donald, B. ^{[2
]}

Baars, W. ^{[2
]}

Thurow, B. ^{[3
]}

Haynes, H. ^{[3
]}

Panickar, P. ^{[4
]}

机构：

[1] Univ Mississippi, Jamie Whitten Natl Ctr Phys Acoust, University, MS 38677 USA

[2] Univ Texas Austin, Dept Aerosp Engn & Engn Mech, Austin, TX 78712 USA

[3] Auburn Univ, Dept Aerosp Engn, Adv Laser Diagnost Lab, Auburn, AL 36849 USA

[4] Combust Res & Flow Technol Inc, Pipersville, PA 18947 USA

来源：

PROCEEDINGS OF THE ASME NOISE CONTROL AND ACOUSTICS DIVISION CONFERENCE (NCAD 2012) | 2013年

关键词：

LOW-DIMENSIONAL CHARACTERISTICS; NOISE;

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

This paper describes the experimental study of the noise generating characteristics of high-temperature, shock-containing jets emanating from conic-section, converging-diverging (C-D) nozzles. Conic C-D nozzles consist of two conic sections, one contracting and the other expanding, joined to form a supersonic nozzle with a very sharp radius of curvature at the nozzle throat. An experiment is conducted in which temporally resolved flow-field measurements are acquired simultaneously with near-field and far-field acoustics to allow investigation of the turbulence associated with noise generation. The MHz rate PIV system and its synchronization with acoustic measurements is described along with methods for data analysis. General acoustic results are presented to characterize the spectral content present, and preliminary results on the measured turbulence structures are discussed.

引用

页码：505 / +

页数：4