Significance of Truckenbrodt's Energy and Momentum Coefficients for Loss Calculation in Ramified Pipe Systems
Year: 2010
Type: article
Abstract: For one‐dimensional simulation of flow in ramified pipe systems loss prediction in junctions is essential. In the standard literature (e.g. [1]) total pressure loss coefficients serve this purpose. Elementary formulas follow from the principle of momentum and some simple assumptions [2]. They yield rather crude estimates, often twice as large as experimental values. Modifications described by Idelchik [3] look nice, but after all turn out to be not more accurate. We explain deviations and propose improved loss formula based on Truckenbrodt's energy and momentum coefficients [4], thus paying regard to velocity distributions over pipe cross‐sections. We further discuss extraction of the coefficient's values from experiments. (© 2010 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Source: PAMM
Authors: Herbert Niessner, Ennio Codan
Institution: ABB (Switzerland)
Language: English
Subfield: Computational Mechanics
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
Funder: Strong
OpenAlex ID: W2035601488