RESEARCH ON WAVE PHENOMENA IN HYDRAULIC LINES--2. UNSTEADY LIQUID FLOW IN TAPERED PIPES

The basic equations for unsteady inviscid liquid flow through a linear-tapered tube are solved with the aid of the Laplace transform. Example computations reveal the remarkable effects of taper on wave propagation and the limit of the conventional step line approach to frequency analysis. The procedure to numerically calculate the Laplace-transformed wave equations with S=jw can predict the frequency characteristics of viscous liquid tapered lines. A frequency response test on a linear-tapered line filled with oil is carried out; good agreement is obtained between experimental and numerical results. Transient waves are also observed in the same line and compared with the results calculated from Zielke's method of characteristics.

  • Corporate Authors:

    Japan Society of Mechanical Engineers

    Shinanomachi Rengakan Building, 5th Floor, Shinanomachi 35, Shinjuku-ku
    Tokyo,   Japan  160-0016
  • Authors:
    • Washio, S
    • KONISHI, T
    • Okamura, K
  • Publication Date: 1974-9

Media Info

  • Features: References;
  • Pagination: p. 1165-71
  • Serial:
    • JSME Bulletin
    • Volume: 17
    • Issue Number: 111
    • Publisher: Japan Society of Mechanical Engineers

Subject/Index Terms

Filing Info

  • Accession Number: 00084576
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: May 19 1975 12:00AM