Fluid Mechanics

Volume 5, Issue 2, December 2019

  • New Measures for Prolonging the Nozzle Service Life

    Yuan Changjun, Liu Zongchang

    Issue: Volume 5, Issue 2, December 2019
    Pages: 30-38
    Received: 9 November 2019
    Accepted: 28 November 2019
    Published: 10 December 2019
    Abstract: Microstructures of 27SiMnMoVA steel intended for nozzle in raw, as-brazed and as-normalized states were surveyed by using OLS4000 laser scanning confocal microscope, Axiovert-25CA optical microscope and QUENTA-400 scanning electron microscopy. It is found that the microstructures of raw 27SiMnMoVA steel are ferrite and pearlite; the microstructures... Show More
  • Quinn’s Law of Fluid Dynamics Pressure-driven Fluid Flow Through Closed Conduits

    Hubert Michael Quinn

    Issue: Volume 5, Issue 2, December 2019
    Pages: 39-71
    Received: 12 October 2019
    Accepted: 11 December 2019
    Published: 6 January 2020
    Abstract: In this paper we develop from first principles a unique law pertaining to the flow of fluids through closed conduits. This law, which we call “Quinn’s Law”, may be described as follows: When fluids are forced to flow through closed conduits under the driving force of a pressure gradient, there is a linear relationship between the fluid-drag normali... Show More