title: Experimental evaluation of the acoustic properties of stacked-screen regenerators.
abstract: The experimental evaluation of the wave number and characteristic impedance of stacked-screen regenerators is described. First, a two-by-two transfer matrix of a stacked-screen regenerator was estimated from pressure measurements performed at four different positions; then, the wave number and characteristic impedance of the regenerator were evaluated using a "capillary-tube-based" theory that models a stacked-screen regenerator as an array of pores having a uniform cross section. The evaluation was applied to seven types of stacked-screen regenerators. The experimental results show that these stacked-screen regenerators can be modeled as arrays of circular-cross-section tubes. Moreover, an empirical equation used to estimate the radius of the circular cross section of the tubes comprising the modeled stacked-screen regenerators was addressed.
authors.affiliation: Department of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan. uedayuki@cc.tuat.ac.jp
authors.forename: Yuki
authors.initials: Y
authors.lastname: Ueda
authors.forename: Toshihito
authors.initials: T
authors.lastname: Kato
authors.forename: Chisachi
authors.initials: C
authors.lastname: Kato
mesh_terms: D000162:Acoustics / Q000295:instrumentation*; D004735:Energy Transfer; D004738:Engineering / Q000295:instrumentation*; D004867:Equipment Design; D005740:Gases; D008962:Models, Theoretical; D009991:Oscillometry; D011312:Pressure; D015203:Reproducibility of Results; D013696:Temperature; D013997:Time Factors; D014783:Viscosity
chemical_list: D005740:Gases