English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

case of unsteady flow in pipes, the main problems seem to be the modelling of headlosses, especially when air release phenomena occur. A number of approaches are possible, but in this paper only one-dimensional and one-phase models have been investigated, in order to check their adequacy in reproducing real data, as they require much less computational effort and are therefore much faster and easy to apply. Laboratory experiments have been performed at the Hydraulic Laboratory of the Politecnico di Milano, Italy, and simple models have been implemented in a computer code and then applied. The results are reported and commented; it appears that to reach some achievements, some other points have to be discarded and to improve the overall solution it is probably necessary to use two-dimensional two-phase models.

Waterhammer effects in the case of air release