The dynamics of slug trains in volcanic conduits: Evidence for expansion driven slug coalescence

نویسندگان

  • T. D. Pering
  • A.J.S. McGonigle
  • M. R. James
  • A. Capponi
  • S. J. Lane
  • G. Tamburello
  • A. Aiuppa
چکیده

a University of Sheffield, Dept. of Geography, Winter Street, S10 2TN, United Kingdom b Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Palermo, Via Ugo La Malfa, 153, 90146 Palermo, Italy c School of Geosciences, The University of Sydney, Sydney, NSW 2006, Australia d Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK e Department of Earth Sciences, Durham University, Science Labs, Durham DH1 3LE, UK f Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Bologna, Via Donato Creti, 12, 40100 Bologna, Italy g DiSTeM, Università di Palermo, via Archirafi, 22, 90123 Palermo, Italy

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

An analytical model for gas overpressure in slug-driven explosions: Insights into Strombolian volcanic eruptions

[1] Strombolian eruptions, common at basaltic volcanoes, are mildly explosive events that are driven by a large bubble of magmatic gas (a slug) rising up the conduit and bursting at the surface. Gas overpressure within the bursting slug governs explosion dynamics and vigor and is the main factor controlling associated acoustic and seismic signals. We present a theoretical investigation of slug ...

متن کامل

The Indication of Two-Phase Flow Pattern and Slug Characteristics in a Pipeline Using CFD Method

Multiphase flows are commonly encountered in oil and gas industries. The transport of multiphase flow causes the formation of slug, the increase of pressure drop and the possibility of phase changes therefore, a set of simulation runs was performed to predict flow regimes in a horizontal pipeline, and the results were compared with the Baker chart. The effects of small downward inclinations of ...

متن کامل

An approximate model for slug flow heat transfer in channels of arbitrary cross section

In this paper, a novel approximate solution to determine the Nusselt number for thermally developed, slug (low-prandtl), laminar, single phase flow in channels of arbitrary cross section is presented. Using the Saint-Venant principle in torsion of beams, it is shown that the thermally developed Nusselt number for low-prandtl flow is only a function of the geometrical parameters of the channel c...

متن کامل

Magmatic gas composition reveals the source depth of slug-driven strombolian explosive activity.

Strombolian-type eruptive activity, common at many volcanoes, consists of regular explosions driven by the bursting of gas slugs that rise faster than surrounding magma. Explosion quakes associated with this activity are usually localized at shallow depth; however, where and how slugs actually form remain poorly constrained. We used spectroscopic measurements performed during both quiescent deg...

متن کامل

Numerical investigation of upward air-water annular, slug and bubbly flow regimes

In this paper, numerical investigation of upward two phase flow of air-water has been studied. Different conditions of flow regimes including annular, wispy annular, slug, churn and bubbly are simulated based on Hewitt and Roberts map, and a good agreement between the experimental data of the map and the numerical simulation has been observed. Accordingly, a proper CFD model in CFD software of ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2017