Force, Energy, Entropy, and Energy Dissipation Rate

Yang, Chih Ted

doi:10.1007/978-94-011-2430-0_3

Cited by 16 publications

(9 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Regime theory and power law approach Bray (1982), Hey and Thorne (1986), Julien and Wargadalam (1995), Schmautz (2003) Extremal hypothesis Bettess and White (1987), Chang (1988a), Yang (1992), Millar and Quick (1997) Tractive force methods Glover and Florey (1951), Lane (1955), Parker (1979), Ikeda and Izumni (1991), Diplas and Vigilar (1992) Nonequilibrium streams…”

Section: Referencesmentioning

confidence: 99%

Morphodynamic river processes and techniques for assessment of channel evolution in Alpine gravel bed rivers

2007

View full text Add to dashboard Cite

Section: Referencesmentioning

confidence: 99%

Morphodynamic river processes and techniques for assessment of channel evolution in Alpine gravel bed rivers

2007

View full text Add to dashboard Cite

“…Because this process is irreversible, the right-hand side of equation AI-5 also describes the increase in disorder or entropy. With the substitution of pDe.lDt = Ta , the equation thus becomes (Yang, 1992):…”

Section: Discussionmentioning

confidence: 99%

“…In an isothermal system the entropy production is solely caused by irreversible friction losses within the fluid. For incompressible fluids, the entropy production per unit volume and unit time, a , is described by (Yang, 1992): rcr = -(T:Vv) (7) in which T is the absolute temperature, T is the stress tensor and v is the velocity vector. Equation 7 can be obtained by combining the first law of thermodynamics with the equation of motion for an isothermal system and incompressible fluid.…”

Section: Entropy Production In a Meandering Rivermentioning

confidence: 99%

Entropy and river meander planform

Teuling¹,

Andel²,

Hoitink³

et al. 2006

River Flow 2006

View full text Add to dashboard Cite

This study departs from the hypothesis that the often striifing geometric similarity and regularity of meanders is the result of the second law of thermodynamics applied to open dissipative systems. It is argued that along a meandering river the continuous production of entropy is as low and as uniform as possible. An expression of entropy production in a moderately meandering river is derived. A dimensioniess form of Odgaard's Meander flow model (1986a) is used to evaluate this expression along different meander bends described by the class of third order sine-generated curves. The results show a minimum variance of entropy production for a fattened curve with upvalley skewing, indicating that meander asymmetry described by Carson and Lapointe (1983) is in correspondence with the Theory of minimum variance .It is pleasant to have been to a place the way a river went.

show abstract

“…The main cause is that the resistance of the sea buckthorn rows to flow when water flowing into the sea buckthorn row leads to the distribution form. Further, according to the minimum energy dissipation theory by Chi-Ta YANG (Yang, 1992), flow would be forced to pass the gap between the two neighboring sea buckthorn trees. The flow velocity at C1 transect is obviously greater than that at the other one.…”

Section: The Velocity Distribution At Transect Within the Spfdmentioning

confidence: 99%

Velocity distribution characteristics within the non-submerged sea buckthorn plant flexible dam

Yang¹,

Zhang²,

Han³

et al. 2017

2nd Annual International Conference on Energy, Environmental &Amp; Sustainable Ecosystem Development (EESED 2016)

View full text Add to dashboard Cite

The seabuckthorn plant flexible dam (The SPFD) is a new type of ecological engineering, which can efficaciously control soil erosion and capture sediment in the Pisha sandstone gully within Loess Plateau of China. The seabuckthorn plant can resist flow due mainly to slowing velocity, and thus reduce the flow scour stress and the sediment carrying capacity. It is therefore necessary to analyze the flow velocity distribution within the SPFD. The results showed that: i) the SPFD has a significant effect on the both lengthwise and transverse directions; ii) the average transect velocity reduced progressively in longitudinal direction, and the width-averaged velocity in the same depth at each transect reduced along the lengthways direction; iii) the velocity distribution at transect shows the reversetongue pattern that is quite different from that of general river. This study can lay a significant foundation for further study on the vegetation resistance and its formulation as well as function.

show abstract

Force, Energy, Entropy, and Energy Dissipation Rate

Cited by 16 publications

References 22 publications

Morphodynamic river processes and techniques for assessment of channel evolution in Alpine gravel bed rivers

Morphodynamic river processes and techniques for assessment of channel evolution in Alpine gravel bed rivers

Entropy and river meander planform

Velocity distribution characteristics within the non-submerged sea buckthorn plant flexible dam

Contact Info

Product

Resources

About