Journal of Fluids Engineering: Recent submissions

Now showing items 7421-7440 of 9024

    • The Developing Laminar Flow and Pressure Drop in the Entrance Region of Annular Ducts 

      E. M. Sparrow; S. H. Lin (The American Society of Mechanical Engineers (ASME), 1964)
      A new analytical method has been applied for determining the developing laminar flow in the hydrodynamic entrance region of annular ducts. Detailed results are presented for the development of ...

    • A Study of the Dynamic Features of a Wall-Reattachment Fluid Amplifier 

      H. R. Muller (The American Society of Mechanical Engineers (ASME), 1964)
      The paper describes the characteristics of a wall-reattachment fluid amplifier. The switching of the jet from the wall to which it is attached to the opposite one is analyzed. It is shown ...

    • Supercavitating Cascade Flow Analysis 

      J. K. Jakobsen (The American Society of Mechanical Engineers (ASME), 1964)
      An exact mathematical theory of supercavitating flow in cascades with arbitrary blade shapes is developed. Applying conformal mapping methods to the potential flow problem involved, a general ...

    • On the Generation of Secondary Velocity Along a Vortex Line 

      A. W. Marris (The American Society of Mechanical Engineers (ASME), 1964)
      A general expression for the generation of secondary velocity along a vortex line is developed for the case of incompressible flow with uniform viscosity. The result is given with various ...

    • The Flow Region Near the Nozzle in Double Concentric Jets 

      N. A. Chigier; J. M. Beér (The American Society of Mechanical Engineers (ASME), 1964)
      The type of double concentric jets considered in this paper consists of a central round air jet surrounded by an annular air jet issuing into stagnant air surroundings. Detailed measurements ...

    • Velocity and Static-Pressure Distributions in Swirling Air Jets Issuing From Annular and Divergent Nozzles 

      N. A. Chigier; J. M. Beér (The American Society of Mechanical Engineers (ASME), 1964)
      Mean-velocity and static-pressure measurements have been made in a series of swirling air jets issuing from annular and divergent nozzles into stagnant-air surroundings. Swirl was generated by ...

    • Some Details of the Structure of an Axisymmetric Confined Jet With Backflow 

      M. Barchilon; R. Curtet (The American Society of Mechanical Engineers (ASME), 1964)
      The approximate theory of confined jets, as shown in earlier papers [1, 9, 12] is applicable to the case of an axisymmetric jet with backflow. The assumptions usually made, however, are not ...

    • On the Tendency to Self-Preservation in Axisymmetric Ducted Jets 

      R. Curtet; F. P. Ricou (The American Society of Mechanical Engineers (ASME), 1964)
      If it is assumed that the mean-velocity profiles of a ducted jet are similar in form sufficiently for downstream of the orifice it is possible, as shown in earlier papers [1, 2, 3], to ...

    • Rotating Stall in a Radial Vaneless Diffuser 

      W. Jansen (The American Society of Mechanical Engineers (ASME), 1964)
      This paper is concerned with the theoretical and experimental aspects of unsteady flow in a radial vaneless diffuser. Specifically, the appearance of self-excited oscillations of large amplitude ...

    • Vane Systems for Very-Wide-Angle Subsonic Diffusers 

      O. G. Feil (The American Society of Mechanical Engineers (ASME), 1964)
      Experiments with straight-walled, two-dimensional subsonic diffusers having total divergence angles of 40, 60, and 80 deg and area ratios from 3 to 5 are reported. The performance of these ...

    • Reactor-Vessel Design Considering Radiation Effects 

      L. Porse (The American Society of Mechanical Engineers (ASME), 1964)
      Nuclear-vessel design involves consideration of changes in metal properties resulting from fast-neutron irradiation effects. This paper outlines precautions and design steps which can cope with ...

    • Measurement of Volume and Resistivity Changes in High-Pressure Experiments by an A-C Inductive Technique 

      A. A. Giardini; E. H. Poindexter; G. A. Samara (The American Society of Mechanical Engineers (ASME), 1964)
      A coil wound on a sample core subjected to high pressures may be used to measure compressibility and electrical resistivity of the core. In a first approximation, the coil reactance reflects ...

    • A Study of Pressure Homogeneity in the Hexahedral Anvil High-Pressure Apparatus 

      G. A. Samara; A. Henius; A. A. Giardini (The American Society of Mechanical Engineers (ASME), 1964)
      A study of operational characteristics and stress distribution in a large volume hexahedral apparatus has been made. Pyrophyllite containers with integral preformed gaskets were found to be ...

    • A Liquid-Medium Step-Function Pressure Calibrator 

      R. O. Smith (The American Society of Mechanical Engineers (ASME), 1964)
      Some characteristics of a step-function pressure calibrator of the type devised by D. P. Johnson and J. L. Cross of NBS have been investigated. Theoretical prediction of the wave generation ...

    • Dynamic Indentation Using Rigid Slow Speed Conical Indenters 

      W. Johnson (The American Society of Mechanical Engineers (ASME), 1964)
      Rigid conical indenters of various weight, of half angle 30, 45, 60, and 75 deg were made to impinge normally on blocks of duralumin, copper, and lead at various speeds. Among other things ...

    • The Relationship Between Fracture Toughness and Stress Concentration Factors for Several High-Strength Aluminum Alloys 

      J. H. Mulherin; D. F. Armiento; H. Markus (The American Society of Mechanical Engineers (ASME), 1964)
      For the case of an elliptical notch in an infinite solid, a relationship between the stress concentration factor and the fracture toughness parameter was examined. Edge-notched specimens from ...

    • Yield Behavior of Polycrystalline Niobium 

      D. C. Huffaker; G. M. Sinclair (The American Society of Mechanical Engineers (ASME), 1964)
      The yield behavior of niobium (columbium) has been studied under conditions of different states of stress, temperatures and strain rates, material compositions, and microstructures. Using data ...

    • Compression of a Viscoplastic Disk 

      R. L. Carlson (The American Society of Mechanical Engineers (ASME), 1964)
      The similarities between the response of a viscoplastic material and the response of metals during forging are noted. The yield condition and flow law for an incompressible viscoplastic material ...

    • On the Axial Rigidity of a Perforated Strip and the Strain Energy Release Rate in a Centrally Notched Strip Subjected to Uniaxial Tension 

      R. G. Forman; A. S. Kobayashi (The American Society of Mechanical Engineers (ASME), 1964)
      This paper presents theoretical studies on the axial rigidities in strips with circular and elliptical perforations and subjected to uniaxial tension. Greenspan’s original derivations on these ...

    • Part-Through Crack Test—Relation to Solid-Propellant Rocket Cases 

      P. N. Randall; R. P. Felgar (The American Society of Mechanical Engineers (ASME), 1964)
      Propagation of a crack from a flaw that escaped nondestructive inspection is shown to be an important mode of failure of rocket motor cases. The notch strengths of part-through crack tensile ...