국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Effect of Supersonic Retrojet on Capsule Aerodynamic Characteristics in Hypersonic Flow
저자	Mitsunori WATANABE, Shigeaki NOMURA, Yukimitsu YAMAMOTO, Akira YOSHIZAWA, Koichi HOZUMI, Tadao KOYAMA
Keyword	hypersonic; aerodynamics; capsule; retrojet; drag coefficients; lift coefficients
URL	http://send.nal.go.jp/send/jpn/dlfile.php3/naltr0001329.pdf?doctype=7&filetype=20&path0=naltr0001329.pdf&path1=&path2=
보고서번호	NAL TR-1329
발행년도	1997.7
출처	NAL (National Aerospace Laboratory of Japan)
ABSTRACT	The effects of supersonic retrojets on the aerodynamic characteristics of a capsule type model with a spherical nose of large bluntness were investigated experimentally in a hypersonic flow.Tests were conducted in the NAL φ50cm hypersonic wind tunnel at conditions of Ma supersonic retrojet of a nominal Mach number 3.05 ejected perpendicularly at the capsule nose center and on the effect of model attack angles.The retrojet was found to have a large effect on drag and lift coefficients that were calculated by integrating the measured pressure distributoins.The aerodynamic interaction phenomena between a main flow and a retrojet were studied to understand those effects by investigating Schlieren pictures and surface pressure distribution.