Showing papers on "Ullage published in 1983"
Patent•
09 Feb 1983
TL;DR: In this paper, an apparatus for measuring the contents of a container of a liquid is provided, where open ended probes are positioned near the bottom of and in the ullage space above tank of liquid.
Abstract: There is provided an apparatus for measuring the contents of a container of a liquid. Open ended probes (3, 4) are positioned near the bottom of and in the ullage space above tank (1) of liquid (2). The probes are provided with a small flow of gas from a gas supply (6) via constant flow devices (7, 12) and are connected to two sides of a differential pressure transducer (9) which generates an output signal representative of the hydrostatic pressure resulting from the column of liquid above the open end of probe (3). To avoid errors resulting from excess or stopped air flow through probe (3), the rate of bubbling of the gas therefrom is monitored by bubble detector (8).
6 citations
01 Feb 1983
TL;DR: In this article, an extension to TDNOVA, a code whose purpose is the digital simulation of convective flamespreading through bagged artillery charges, is described, which is based on the numerical solution of the axisymmetric, two-dimensional equations which govern the macroscopic aspects of the flow of a two-phase, heterogeneous mixture.
Abstract: : This report describes an extension to TDNOVA, a code whose purpose is the digital simulation of convective flamespreading through bagged artillery charges. TDNOVA is based on the numerical solution of the axisymmetric, two- dimensional equations which govern the macroscopic aspects of the flow of a two- phase, heterogeneous mixture. Of principal interest are the inter-play among the venting characteristics of the ignition system, the properties of the bag and the distribution of ullage during the period of flamespreading, and the consequences of the path of flamespreading in respect to the structure of the longitudinal pressure field throughout the entire interior ballistic cycle.
1 citations