Applicability of Kinematic, Noninertia, and Quasi-Steady Dynamic Wave Models to Unsteady Flow Routing

2003 ◽  
Vol 129 (8) ◽  
pp. 613-627 ◽  
Author(s):  
Christina W. Tsai
Keyword(s):  
Unsteady Flow ◽  
Flow Routing ◽  
Wave Models ◽  
Unsteady Flow Routing ◽  
Dynamic Wave

Is Hydraulics Over-Used or Under-Used in Storm Drainage?

1994 ◽  
Vol 29 (1-2) ◽  
pp. 53-61
Author(s):  
Ben Chie Yen
Keyword(s):  
Unsteady Flow ◽  
Computational Time ◽  
Time Step ◽  
Flow Routing ◽  
Kinematic Wave Equation ◽  
Storm Drainage ◽  
Saint Venant Equations ◽  
Unsteady Flow Routing ◽  
Selection Of

Urban drainage models utilize hydraulics of different levels. Developing or selecting a model appropriate to a particular project is not an easy task. Not knowing the hydraulic principles and numerical techniques used in an existing model, users often misuse and abuse the model. Hydraulically, the use of the Saint-Venant equations is not always necessary. In many cases the kinematic wave equation is inadequate because of the backwater effect, whereas in designing sewers, often Manning's formula is adequate. The flow travel time provides a guide in selecting the computational time step At, which in turn, together with flow unsteadiness, helps in the selection of steady or unsteady flow routing. Often the noninertia model is the appropriate model for unsteady flow routing, whereas delivery curves are very useful for stepwise steady nonuniform flow routing and for determination of channel capacity.

Fast Approach for Unsteady Flow Routing in Complex River Networks Based on Performance Graphs

2013 ◽  
Vol 139 (3) ◽  
pp. 284-295 ◽  
Author(s):  
Arturo S. Leon ◽  
Elizabeth A. Kanashiro ◽  
Juan A. González-Castro
Keyword(s):  
Unsteady Flow ◽  
River Networks ◽  
Flow Routing ◽  
Fast Approach ◽  
Unsteady Flow Routing

Nonlinear dynamic wave models of gas-liquid flows in technical systems

2018 ◽  
pp. 42-47
Author(s):  
R.A. Gasumov ◽  
◽  
V.A. Tolpaev ◽  
K.S. Akhmedov ◽  
A.M. Kravtsov ◽  
...  
Keyword(s):  
Nonlinear Dynamic ◽  
Technical Systems ◽  
Wave Models ◽  
Liquid Flows ◽  
Dynamic Wave
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