Bridge Afflux Predictions Using the Lattice Boltzmann Method

Liu, H.; Li, M.; Zhou, Jian Guo; Burrows, Roger

doi:10.1016/j.proenv.2010.10.200

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…In terms of run time, generally, a two-dimensional model uses much shorter time and less storage than a three-dimensional model. Although there is no literature stating the run time for the three-dimensional compound channel modeling, from previous research [25,26], the lattice Boltzmann model used even shorter time than a conventional model for the same dimensional task; on the other hand, since the distribution Figure 9. The LBM apparent shear stress A xy comparison for different D r .…”

Section: Summary and Discussionmentioning

confidence: 99%

Numerical modeling of turbulent compound channel flow using the lattice Boltzmann method

Liu

Zhou

Burrows

2008

Numerical Methods in Fluids

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SUMMARYThe flow of water in a straight compound channel with prismatic cross section is investigated with a relatively new tool, the lattice Boltzmann method. The large eddy simulation model is added in the lattice Boltzmann model for nonlinear shallow water equations (LABSWE TM ) so that the turbulence, caused by lateral exchange of momentum in the shear layer between the main channel and floodplain, can be taken into account and modeled efficiently. To validate the numerical model, a symmetrical compound channel with trapezoidal main channel and flat floodplain is tested. Similar to most natural watercourses, the floodplain has higher roughness values than the main channel. Different relative depths, D r (the ratio of the depth of flow on the floodplain to that in the main channel), are considered. The Reynolds number is set at 30 000 in the main channel. The lateral distributions of the longitudinal velocity, the boundary shear stress, the Reynolds stress and the apparent shear stress across the channel are obtained after the large eddy simulation is performed. The results of numerical simulations are compared with the available experiment data, which show that the LABSWE TM is capable of modeling the features of flow turbulence in compound channels and is sufficiently accurate for practical applications in engineering.

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Section: Summary and Discussionmentioning

confidence: 99%

Numerical modeling of turbulent compound channel flow using the lattice Boltzmann method

Liu

Zhou

Burrows

2008

Numerical Methods in Fluids

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“…;= Qi |@U=vt ?} QkD =@ l}Dq VwQ xm OvO=O u=Wv w OvOQm xO=iDU= 3 utRDrw@ [11] "Ovm|t |v}@V}B Q= Ri=sQv R= xO=iDU= =@ = Q u= QyD um |xv=NOwQ R= |WN@ sy 1391 QwB|Oyt '|m}rwQO}y hrDNt |=yQ}eDt Q}F -=D |UQQ@ ut[ w OQm |R=Ux}@W HEC-RAS 'x}=B x@ u=}QH OQwNQ@ |x}w= R '=yx}=B pmW 'QDU@ |Q@R ? }=Q[ '?…”

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confidence: 99%

مطالعه ی آزمایشگاهی فراآب ناشی از پایه ی کج پل با مقطع دایره یی شکل

دلیر¹,

قدسیان²,

مهرآیین³

2020

مهندسی عمران

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CtU x@ 'CUOu}}=B CtU x@ pB |x}=B |x}w= R QF= 'Q[=L |xar=]t QO "CU= xOW Q@ |oOWnvD C@Uv w u=}QH OwQi OOa QF= u}vJty w p=v=m |xQ=w}O CtU x@ w CUOq=@ |L=Q] Q= Ri=sQv R= G}=Dv p}rLD w =yV}=tR; |L=Q] |= Q@ "CU= xOW |UQQ@ ?;= Qi u= R}t |oOWGm QF= |UQQ@ x@ V}=tR; 54 s=Hv= =@ w xO=iDU= Design-Expert7 V}=tR; =@ O=O u=Wv G}=Dv "CU= xOW xDN=OQB u=}QH jta Q@ =DU=Q xU QO pmW|}xv=wDU= |x}=B V}=Ri= ?;= Qi 'p=v=m |xQ=w}O CtU x@ w CUO u}}=B CtUx@ x}=B |oOWGm |x}w= R V}=Ri= x@ C@Uv ?;= Qi 'CUOq=@ CtU x@ x}=B |oOWGm |x}w= R V}=Ri= =@ xm |r=L QO "O@=}|t hrDNt |=yCr=L QO |oOWGm |x}w= R Q=Okt Q}F-=D xD@r= "O@=}|t Vy=m s=k Cr=L u=}QH OwQi OOa V}=Ri= =@ O=O u=Wv G}=Dv u}vJty "CU}v u=Um} ?;= Qi QO x}=B |oOWGm xm |}=yQDt=Q=B OW XNWt u}= Q@ xwqa "O@=}|t V}=Ri= ?;= Qi |oOWnvD C@Uv w QO "OvDUy |oOWnvD C@Uv w u=}QH OwQi OOa 'OvQ=O ?;= Qi u= R}t QO = Q QF= u} QDW}@ "CU= xOW x=Q= ?;= Qi Q=Okt |x@U=Lt |= Q@ |@ QHD |x]@= Q R}v u=}=B

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Laboratory study on relative energy loss and backwater rise at bridge piers and abutment

Soori,

Karami

2023

Model. Earth Syst. Environ.

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Bridge Afflux Predictions Using the Lattice Boltzmann Method

Cited by 5 publications

References 8 publications

Numerical modeling of turbulent compound channel flow using the lattice Boltzmann method

Numerical modeling of turbulent compound channel flow using the lattice Boltzmann method

مطالعه ی آزمایشگاهی فراآب ناشی از پایه ی کج پل با مقطع دایره یی شکل

Laboratory study on relative energy loss and backwater rise at bridge piers and abutment

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