Paleohydraulics and hydrodynamics of Scabland floods

The last major episode of scabland flooding (approx. 18,000-13,000 years B.P.) left considerable high-water mark evidence in the form of: (1) eroded channel margins; (2) depositional features; (3) ice-rafter erratics; and (4) divide crossings. These were used to reconstruct maximum flood stages and water-surface gradients. Engineering hydraulic calculation procedures allowed the analyses of flood discharges and mean velocities from these data. Secondary flow phenomena, including various forms of vortices and flow separations, are considered to have been the principal erosive processes. The intense pressure and velocity gradients of vortices along the irregular channel boundaries produced the plucking-type erosion

COMPUTATIONAL FLUID DYNAMIC (CFD) SIMULATION OF SLUG FLOW WITHIN PIPE BEND AND PIPE ELBOW WHICH INDUCE VIBRATION

Multi-phase flow is any fluid stream consisting of more than one phase or component, for example, gas-liquid stream, liquid-liquid flow, solid fluid stream, or solid-fluid gas stream. It is common in fluid systems, in particular in oil and gas hydrocarbon conveying systems which produce natural gas and crude oil at the same time. A significant response from flux-induced vibration can lead to potential fatigue damage or uncontrolled vibration when the frequency of excitation matches the piping system's natural frequencies, especially in cases where oil produces dense sand particles or slow flows in the flow-lines. This is why it is important to investigate the impact of the oil-gas-water mix on pipeline structure

Two-Phase Flow in an Inclined Pipe

Chemical Engineerin

COMPUTATIONAL FLUID DYNAMIC (CFD) SIMULATION OF SLUG FLOW WITHIN PIPE BEND AND PIPE ELBOW WHICH INDUCE VIBRATION

Multi-phase flow is any fluid stream consisting of more than one phase or component, for example, gas-liquid stream, liquid-liquid flow, solid fluid stream, or solid-fluid gas stream. It is common in fluid systems, in particular in oil and gas hydrocarbon conveying systems which produce natural gas and crude oil at the same time. A significant response from flux-induced vibration can lead to potential fatigue damage or uncontrolled vibration when the frequency of excitation matches the piping system's natural frequencies, especially in cases where oil produces dense sand particles or slow flows in the flow-lines. This is why it is important to investigate the impact of the oil-gas-water mix on pipeline structure

Do Tourism and Project Management Need Each Other? Insight From Top-Ranked Tourism and Project Management Journals

While the relationship between tourism and project management (PM) seems logical in business practice, it seems that academic literature does not follow this reasoning. The purpose of this paper is to examine whether there is an interrelationship between tourism and PM in the academic literature, and if so, what is the nature of this connection. To reach this objective, the author examined ten top-ranked PM and tourism journals represented in Web of Science Core Collection (WoSCC). PM journals do not recognize tourism as an attractive field of research because only nine papers (out of 2,995 published) refer to tourism or tourists. Additionally, from 11,332 papers published in tourism journals, 269 papers allude to projects mostly focusing on three major themes: (1) tourism development projects, (2) local communities, and (3) tourist experiences. However, the term “project” refers mostly to studied cases, while Knowledge Areas (PMKAs), which are the core of PM, are mentioned only sporadically. The findings suggest that the connection between tourism and PM in academia is not as strong as the business practice would suggest. Academics should pay more attention to the fact that PM knowledge needs to be applied and integrated into the tourism industry and its projects

The Channeled Scabland

The geomorphology and hydrodynamics of high velocity flood erosion in the channeled scabland of the Columbia Basin are discussed