The coalesce of compression waves propagating in pipes into weak shock waves is one of the topics of shock wave dynamics. We have worked for weak shock waves generated in automobile exhaust pipe lines [Sekine et al. (1990)] and train tunnel sonic booms in Japanese high speed train entry into a long tunnel [Takayama et al. (1995)]. Hirschberg et al. (1996) reported, for the first time, the emission of weak shock waves from a trombone blown in ff and Pandya et al. (2003) visualized weak shock waves emitted from brass instruments. So far we understood, these belong to our continuous academic curiosity. It is a highlight of brass instruments to produce dramatizing sounds. In the 631‐bar of the fourth movement of Mahler’s symphony No. 1, fff is specified for a third trombone. We then visualized, by using a set of 1 m diameter schlieren mirrors in schlieren optics and holographic interferometry, weak shock waves emitted from a trombone blown in ff and fff and measured pressure at the muzzle and horn and velocity at the horn.
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April 2011
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April 01 2011
Visualization of weak shock waves emitted from a trombone.
Kazuyoshi Takayama;
Kazuyoshi Takayama
Inst. of Fluid Sci., Tohoku Univ., 2‐1‐1 Katahira, Aoba, Sendai 980‐8577, Japan, k.takayama@mac.com
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Kiyonobu Ohtani;
Kiyonobu Ohtani
Inst. of Fluid Sci., Tohoku Univ., 2‐1‐1 Katahira, Aoba, Sendai 980‐8577, Japan, k.takayama@mac.com
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Toshihiro Ogawa;
Toshihiro Ogawa
Inst. of Fluid Sci., Tohoku Univ., 2‐1‐1 Katahira, Aoba, Sendai 980‐8577, Japan, k.takayama@mac.com
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Takamasa Kikuchi;
Takamasa Kikuchi
Inst. of Fluid Sci., Tohoku Univ., 2‐1‐1 Katahira, Aoba, Sendai 980‐8577, Japan, k.takayama@mac.com
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Reiko Takayama;
Reiko Takayama
Inst. of Fluid Sci., Tohoku Univ., 2‐1‐1 Katahira, Aoba, Sendai 980‐8577, Japan, k.takayama@mac.com
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Toshinori Takahashi
Toshinori Takahashi
Tohoku Univ., Sendai 980‐8579, Japan
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J. Acoust. Soc. Am. 129, 2616 (2011)
Citation
Kazuyoshi Takayama, Kiyonobu Ohtani, Toshihiro Ogawa, Takamasa Kikuchi, Reiko Takayama, Toshinori Takahashi; Visualization of weak shock waves emitted from a trombone.. J. Acoust. Soc. Am. 1 April 2011; 129 (4_Supplement): 2616. https://doi.org/10.1121/1.3588692
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