diff --git a/NEWS.txt b/NEWS.txt
index 8e936ce4b9fafc9ecb4cbec8214105a91f0e1722..915d47320477651a990b3e50253492cbd25390da 100644
--- a/NEWS.txt
+++ b/NEWS.txt
@@ -1,6 +1,8 @@
Latest changes
==============
+TELEMAC-2D: Add Cui vegetation law
+
TELEMAC-2D: Improvements of the friction laws of telemac2d
- Fix the dico to allow Colebrook-White law to be used
- Improved the fixed point algorithm of the Colebrook-White for better convergence
diff --git a/documentation/data/biblio.bib b/documentation/data/biblio.bib
index 186d1dea900351df32795398039d51e59463b254..97a018ca02cb84263f19b4758388e2337b2c7b41 100644
--- a/documentation/data/biblio.bib
+++ b/documentation/data/biblio.bib
@@ -1,3 +1,14 @@
+@article{cui2023predicting,
+ title={Predicting flow resistance in open-channel flows with submerged vegetation},
+ author={Cui, Hanwen and Felder, Stefan and Kramer, Matthias},
+ journal={Environmental Fluid Mechanics},
+ volume={23},
+ number={4},
+ pages={757--778},
+ year={2023},
+ publisher={Springer}
+}
+
@InProceedings{Quetin1977,
author = {GAUTHIER M. and QUETIN B.},
title = {Modèles mathématiques de calcul des écoulements induits par le vent},
diff --git a/documentation/telemac2d/user/latex/appendix5.tex b/documentation/telemac2d/user/latex/appendix5.tex
index 63c855b7a9a7ee9ff18cd1859a7fe90acbf86e20..cfd20d2d8e40a2e9665cbc3b5a78ec0abc33240e 100644
--- a/documentation/telemac2d/user/latex/appendix5.tex
+++ b/documentation/telemac2d/user/latex/appendix5.tex
@@ -112,7 +112,8 @@ Huthoff et al & 5 & HUTH & Cd, mD, Hp, sp \\ \hline
Van Velzen et al & 6 & VANV & Cd, mD, Hp \\ \hline
Luhar \& Nepf & 7 & LUHE & Cd, Cv, a, Hp \\ \hline
Vastila \& Jaervelae & 8 & VAST & Cdf, LAI, Ureff, Vogelf, CDs, SAI, Vogels, Urefs, Hp \\ \hline
-Folke et al & 1 & HYBR & Cdx, LAI, Uref, Vogel, Hp \\ \hline
+Folke et al & 9 & HYBR & Cdx, LAI, Uref, Vogel, Hp \\ \hline
+Cui et al \cite{cui2023predicting} & 10 & VCUI & Cd, A, HdVeg, Zeta, Y, Alfa, Beta, CPI \\ \hline
\end{tabular}
Explanation of the used parameters:
@@ -133,18 +134,21 @@ Vogelf: & Foliage Vogel exponent \\
Vogels: & Stem Vogel exponent \\
Hp: & Plant height \\
D: & Vegetation diameter \\
-sp: & Vegetation spacing \\
-NOTE: Huthoff et al defines sp as spacing between two trees (bark to bark)\\
+sp: & Vegetation spacing (Huthoff et al defines sp as spacing between two trees (bark to bark)) \\
Ap0: & Initial projected area \\
EI: & Flexural rigidity \\
mD: & m: vegetation density (1/sp**2) D: vegetation diameter 0.5*LAI/Hp (Finnigan 2000) \\
Cv: & Friction coefficient on top of the vegetation layer, for emerged case Cv=0\\
a: & Frontal area of vegetation per volume (=mD) \\
+HdVeg: & Height of deflected vegetation \\
+Zeta: & Adimensional parameter ui/uUD \\
+Y: & Adimensional parameter y0/Hdeg \\
+Alfa: & Adimensional parameter Le/HdVeg \\
+Beta: & Adimensional parameter yi/HdVeg \\
+CPI: & Wake function coefficient \\
\end{tabular}
-
-
\textbf{III -- Steering file}
In order to use a friction computation by domains, the next keywords have to be
diff --git a/examples/telemac2d/vegetation/f2d_veg10.slf b/examples/telemac2d/vegetation/f2d_veg10.slf
new file mode 100644
index 0000000000000000000000000000000000000000..bb6b4d44b991609d6e0fe4fd18ed76548ddd5220
--- /dev/null
+++ b/examples/telemac2d/vegetation/f2d_veg10.slf
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b3fd8cb81e004aca5f10fc09825496ab6981478f61783c63609ba820487bcac5
+size 719116
diff --git a/examples/telemac2d/vegetation/friction10.tbl b/examples/telemac2d/vegetation/friction10.tbl
new file mode 100644
index 0000000000000000000000000000000000000000..e26edc37489d280eb9044b3f4e80ef47376b61c1
--- /dev/null
+++ b/examples/telemac2d/vegetation/friction10.tbl
@@ -0,0 +1,163 @@
+* -----------------------------------------------------------------------------
+* Description of friction of the zones
+*
+* Bed roughness laws
+* NOFR : no friction (no value)
+* HAAL : Haaland law (1 Value : rB)
+* CHEZ : Chezy law (1 Value : rB)
+* STRI : Strickler law (1 Value : rB)
+* MANN : Manning law (1 Value : rB)
+* NIKU : Nikuradse law (1 Value : rB)
+* LOGW : Log Wall law (1 Value : rB)
+* COWH : Colebrook-White law (1 Value : rB. nDef)
+*
+* Vegetation roughness laws
+* NULL : no vegetation (no value)
+* LIND : Lindner (1982) approach (2 Values: dp, sp)
+* JAER : Jarvela (2004) approach (5 Values: Cd, LAI, Uref, VOGEL, hp)
+* WHIT : Whittaker et al (2015) approach (6 Values: CDo, Apo, EI, VOGEL, Sp, hp)
+* BAPT : Baptist et al (2007) approach (3 Values: Cd, mD, hp)
+* HUTH : Huthoff et al (2007) approach (4 values: Cd, mD, hp, Sp)
+* VANV : Van Velzen et al (2003) approach (3 Values: Cd, mD, hp)
+* LUNE : Luhar & Nepf (2013) approach (4 values: Cd, Cv, a, hp)
+* VAST : Vastila and Jarvela (2014) approach (8 values: Cdf, CDs, LAI, SAI, VOGELf, VOGELs, Ureff, Urefs)
+* HYBR : Folke et al. (2021) approach (5 Values: Cd, LAI, Uref, VOGEL, hp)
+* VCUI : Cui et al (2023) approach (8 values: Cd, A, HdVeg, Zeta, Y, Alfa, Beta, CPI)
+*
+* no : Number of zone
+*
+* Bed setup
+* -------------
+* typeB : Roughness law for sole boundary
+* rB : Roughness coefficient for bottom boundary
+* nDefB : Manning coefficient for flat overflow areas (option)
+*
+* Walls setup (for k-epsilon model)
+* -----------------------------------------
+* typeS : roughness law for lateral boundary (option)
+* rS : roughness factor for lateral boundary (option)
+* nDefS : Manning coefficient for flat overflow areas (option)
+*
+*****************************************************************************************************
+* Vegetation parameters(if needed)
+* ------------------------
+* typeV : Roughness law for vegetation
+*
+* Case Lindner:
+* dp : average diameter (option)
+* sp : mean distance from ideal roughness elements (option)
+* from center to center
+*
+*
+* Case Jarvela:
+* Cdx : vegetation drag coefficient (Specie specific)
+* LAI : Leaf area index
+* Uref : (Specie-specific) lowest velocity used to determine the Vogel exponent
+* Vogel : (Specie-specific) Vogel exponent
+* hp : Vegetation height
+*
+*
+* Case Whittaker:
+* CDo : Specie-specific rigid drag coefficient
+* Apo : Initial-projected area (Rigid)
+* EI : Flexural Rigidity
+* VOGEL : Vogel exponent
+* Sp : Spacing between roughness elements (same as Lindner)
+* hp : Undeflected plant height
+*
+* Case Baptist:
+* Cd : vegetation bulk drag coefficient (Normally 1.0)
+* mD : m: vegetation density=1/spacing**2
+* D: Vegetation diameter when modeled as cylinder
+* Note: can be estimated by mD=0.5*LAI/hp (Finnigan 2000)
+* hp : vegetation height
+*
+* Case Huthoff (2007):
+* Cd : vegetation bulk drag coefficient
+* mD : m: vegetation density=1/spacing**2
+* D: Vegetation diameter when modeled as cylinder
+* Note: can be estimated by mD=0.5*LAI/hp (Finnigan 2000)
+* hp : Vegetation height
+* Sp : mean spacing between ideal roughness elements
+* from bark to bark
+*
+* Case Van Velzen (2003):
+* Cd : vegetation drag coefficient
+* mD : m: vegetation density=1/spacing**2
+* D: Vegetation diameter when modeled as cylinder
+* Note: can be estimated by mD=0.5*LAI/hp (Finnigan 2000)
+* hp : Vegetation height
+*
+*
+* Case Luhar and Nepf (2013):
+* Cd : vegetation drag coefficient
+* Cv : friction coefficient on top of the vegetation layer
+* Note: Case of emerged, input 0
+* a : frontal area of vegetation per volume (=mD)
+* Note: can be estimated by 0.5 LAI/H (Finnigan 2000)
+* hp : Vegetation height
+*
+*
+* Case Vastila and Jarvela (2014):
+* CDf : Foliage drag coefficient
+* CDs : Stem drag coefficient
+* LAI : Leaf area index
+* SAI : Stem Area index
+* VOGELf : Foliage Vogel exponent
+* VOGELs : Stem Vogel exponent
+* Ureff : Foliage reference velocity (lowest velocity used to determine the vogel exponent)
+* Urefs : Stem reference velocity
+*
+*
+* Case Hybrid (Folke et al, 2021: Combination of Jarvela and Baptist):
+* Cdx : vegetation drag coefficient (Specie specific)
+* LAI : Leaf area index
+* Uref : (Specie-specific) lowest velocity used to determine the Vogel exponent
+* Vogel : (Specie-specific) Vogel exponent
+* hp : Vegetation height
+*
+*
+* Case Cui et al (2023):
+* Cd : Bulk drag coefficient for vegetation
+* a : Frontal area per unit volume
+* HdVeg : Height of deflected vegetation
+* Zeta : Adimensional parameter ui/uUD (u_i: time-average velocity at the inflection point, u_UD: quasi-constant velocity distribution)
+* Y : Adimensional parameter y0/Hdeg (y_0: roughness height)
+* Alfa : Adimensional parameter Le/HdVeg (Le: characteristic length scale describing the penetration depth of vortices)
+* Beta : Adimensional parameter yi/HdVeg (y_i: bed normal elevation of the inflection point)
+* CPI : Wake function coefficient
+*
+* --------------------------------------------------------------------------------------------------------------------
+* Lindner:
+* no typeB rB NDefB typeS rS NDefS typeV dp sp
+* Jarvela:
+* no typeB rB NDefB typeS rS NDefS typeV CDx LAI Ux VOGEL hp
+* Whittaker
+* no typeB rB NDefB typeS rS NDefS typeV CDo Apo EI VOGEL Sp hp
+* Baptist:
+* no typeB rB NDefB typeS rS NDefS typeV CD mD hp
+* Huthoff:
+* no typeB rB NDefB typeS rS NDefS typeV CD mD hp Sp
+* Van Velzen:
+* no typeB rB NDefB typeS rS NDefS typeV CD mD hp
+* Luhar and Nepf:
+* no typeB rB NDefB typeS rS NDefS typeV CD Cv a hp
+* Vaestilae:
+* no typeB rB NDefB typeV CDf LAI Ureff VOGELf CDs SAI Urefs VOGELs hp
+* Hybrid:
+* no typeB rB NDefB typeS rS NDefS typeV CDx LAI Ux VOGEL hp
+* Cui et al:
+* no typeB rB NDefB typeV CD a HdVeg Zeta Y Alfa Beta CPI
+* --------------------------------------------------------------------------------------------------------------------
+*
+* main channel
+100 NIKU 0.0005 NULL
+*
+* bank
+200 NIKU 0.0005 NULL
+*
+* floodplain
+300 NIKU 0.0030 VCUI 0.5 2.8 0.03 1.21 0.65 0.27 0.76 0.04
+*
+*
+END
diff --git a/examples/telemac2d/vegetation/friction9.tbl b/examples/telemac2d/vegetation/friction9.tbl
index e1b8c92f4c9e10250b0c03a685a25971d983c175..1a7830880bfbabeeaac2c6128bd26311f7bbc11f 100644
--- a/examples/telemac2d/vegetation/friction9.tbl
+++ b/examples/telemac2d/vegetation/friction9.tbl
@@ -135,13 +135,13 @@
* no typeB rB NDefB typeS rS NDefS typeV CDx LAI Ux VOGEL hp
* --------------------------------------------------------------------------------------------------------------------
*
-* Flussschlauch
+* main channel
100 NIKU 0.0005 NULL
*
-* Ufer
+* bank
200 NIKU 0.0005 NULL
*
-* Vorland
+* floodplain
300 NIKU 0.0030 HYBR 0.5 0.1 0.1 -0.9 1.0
*
*
diff --git a/examples/telemac2d/vegetation/user_fortran/friction_zones.f b/examples/telemac2d/vegetation/user_fortran/friction_zones.f
index c0d6219b3ac35f7312f37068543613b939fdacdb..a9c14504dba64dbdb59ea3129be03086bf812420 100644
--- a/examples/telemac2d/vegetation/user_fortran/friction_zones.f
+++ b/examples/telemac2d/vegetation/user_fortran/friction_zones.f
@@ -214,16 +214,23 @@
& VCOEFF%ADR(4)%P%R(I), VCOEFF%ADR(5)%P%R(I),
& KARMAN,CP)
CF%R(I) =CF%R(I)+CP
+ CASE (10)
+ CALL FRICTION_CUI
+ & (T1%R(I), VCOEFF%ADR(1)%P%R(I),
+ & VCOEFF%ADR(2)%P%R(I), VCOEFF%ADR(3)%P%R(I),
+ & VCOEFF%ADR(4)%P%R(I), VCOEFF%ADR(5)%P%R(I),
+ & VCOEFF%ADR(6)%P%R(I), VCOEFF%ADR(7)%P%R(I),
+ & VCOEFF%ADR(8)%P%R(I),KARMAN,CP)
+ CF%R(I) =CP
CASE DEFAULT
!
WRITE(LU,2) VEGLAW%I(I)
- 2 FORMAT(I5,' : UNKNOWN FRICTION LAW')
+ 2 FORMAT(I5,' : UNKNOWN VEGETATION FRICTION LAW ')
CALL PLANTE(1)
STOP
END SELECT
-
ENDIF !VEGETATION
!
ENDDO
diff --git a/examples/telemac2d/vegetation/vnv_vegetation.py b/examples/telemac2d/vegetation/vnv_vegetation.py
index 79afb8a51f9ebc07b37560529ef2f2a0a6e69b35..fd107bfbf854b7cd737ea40d32bedd4e6088c8ca 100644
--- a/examples/telemac2d/vegetation/vnv_vegetation.py
+++ b/examples/telemac2d/vegetation/vnv_vegetation.py
@@ -44,11 +44,20 @@ class VnvStudy(AbstractVnvStudy):
cas=cas)
del cas
+ # veg_law
+ # 1: Lindner,
+ # 2: Jaervelae,
+ # 3: Whittaker,
+ # 4: Baptist,
+ # 5: Huthoff
+ # 6: van Velzen,
+ # 7: Luhar Nepf,
+ # 8: Vaestilae,
+ # 9: hybrid
+ # 10: Cui
-# veg_law 1: Lindner, 2: Jaervelae, 3: Whittaker, 4: Baptist, 5: Huthoff
-# 6: van Velzen, 7: Luhar Nepf, 8: Vaestilae, 9: hybrid
# vegetation T2D scalar mode
- for veg_law in [2, 3, 4, 5, 6, 7, 8, 9]:
+ for veg_law in [2, 3, 4, 5, 6, 7, 8, 9, 10]:
t2d_steering_file = 't2d_veg{}.cas'.format(veg_law)
veg_file = 'friction{}.tbl'.format(veg_law)
@@ -214,6 +223,16 @@ class VnvStudy(AbstractVnvStudy):
'vnv_veg9_par:T2DRES',
eps=[2e-3])
+ # Comparison with the last time frame of the reference file.
+ self.check_epsilons('vnv_veg10_seq:T2DRES',
+ 'f2d_veg10.slf',
+ eps=[3e-3])
+
+ # Comparison between sequential and parallel run.
+ self.check_epsilons('vnv_veg10_seq:T2DRES',
+ 'vnv_veg10_par:T2DRES',
+ eps=[1e-1])
+
def _post(self):
"""
Post-treatment processes
@@ -229,9 +248,20 @@ class VnvStudy(AbstractVnvStudy):
res, _ = self.get_study_res('vnv_veg1_seq:T2DRES')
# Load all results as a list:
- res_list, res_labels = self.get_study_res(module='T2D')
-# print ("res_list", res_list)
- print ("res_labels", res_labels)
+ res_list, res_labels = self.get_study_res(module='T2D', whitelist=['seq'])
+
+ res_labels = [
+ "Lindner",
+ "Jaervelae",
+ "Whittaker",
+ "Baptist",
+ "Huthoff",
+ "van Velzen",
+ "Luhar Nepf",
+ "Vaestilae",
+ "hybrid",
+ "Cui"]
+
# Plot bathy longitudinal section:
vnv_plot1d_polylines(\
'BOTTOM',
@@ -246,6 +276,7 @@ class VnvStudy(AbstractVnvStudy):
vnv_plot1d_polylines(\
'BOTTOM',
res,
+ x_label='y (m)',
poly=[[30, 0], [30, 5]],
fig_size=(8, 2),
record=0,
diff --git a/sources/api/api.cmdf b/sources/api/api.cmdf
index 9e0dd89df4cb056cd3a81665d0976baf4b8fc498..aaf7fbef2bf2e4589510d0976f532824c0a533e5 100644
--- a/sources/api/api.cmdf
+++ b/sources/api/api.cmdf
@@ -1075,6 +1075,7 @@ files: friction_def.f
friction_calc.f
friction_unif.f
friction_baptist.f
+ friction_cui.f
friction_huthoff.f
friction_hybrid.f
friction_jaervelae.f
diff --git a/sources/telemac2d/friction_calc.f b/sources/telemac2d/friction_calc.f
index 45b5d50227ff3ef776f2f82fd49e573ac93ded0a..642038ca510d064769dcac4a885e3b7bc63fc790 100644
--- a/sources/telemac2d/friction_calc.f
+++ b/sources/telemac2d/friction_calc.f
@@ -220,7 +220,7 @@
CASE DEFAULT
!
WRITE(LU,2) KFROT
-2 FORMAT(I5,' : UNKNOWN FRICTION LAW')
+2 FORMAT(I5,' : UNKNOWN BOTTOM FRICTION LAW')
CALL PLANTE(1)
STOP
!
diff --git a/sources/telemac2d/friction_cui.f b/sources/telemac2d/friction_cui.f
new file mode 100644
index 0000000000000000000000000000000000000000..aad8ecab47cb3f47c5b99f2453576332f5db5423
--- /dev/null
+++ b/sources/telemac2d/friction_cui.f
@@ -0,0 +1,69 @@
+! ***********************
+ SUBROUTINE FRICTION_CUI
+! ***********************
+!
+ &(HA,CD,A,HDVEG,ZETA,Y,ALFA,BETA,CPI,KARMAN,CP)
+!
+!***********************************************************************
+! TELEMAC2D
+!***********************************************************************
+!
+!brief COMPUTES FRICTION COEFFICIENT FOR SUBMERGED VEGETATION
+!+ FROM PARAMETERS WITH CUI ET AL.(2023) APPROACH
+!
+!history GABRIELE FARINA (UNIBS) and VITO BACCHI (LNHE)
+!+ 04/03/2024
+!+ V9.1
+!+
+!+ The algorithm was developed by
+!
+!~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!| CD |-->| BULK DRAG COEFFICIENT FOR VEGETATION
+!| CP |<--| VEGETATION FRICTION COEFFICIENT
+!| HA |-->| WATER DEPTH
+!| HDVEG |-->| HEIGHT OF DEFLECTED VEGETATION
+!| KARMAN |-->| VON KARMAN CONSTANT
+!| A |-->| FRONTAL AREA PER UNIT VOLUME
+!| ZETA |-->| ADIMENSIONAL PARAMETER ui/uUD
+!| Y |-->| ADIMENSIONAL PARAMETER y0/HDVEG
+!| ALFA |-->| ADIMENSIONAL PARAMETER Le/HDVEG
+!| BETA |-->| ADIMENSIONAL PARAMETER yi/HDVEG
+!| CPI |-->| WAKE FUNCTION COEFFICIENT
+!~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+!
+ USE INTERFACE_TELEMAC2D, EX_FRICTION_CUI => FRICTION_CUI
+ IMPLICIT NONE
+!
+!+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+!
+ DOUBLE PRECISION, INTENT(IN) :: HA, CD, A, HDVEG, ZETA, Y
+ DOUBLE PRECISION, INTENT(IN) :: ALFA,BETA,CPI, KARMAN
+ DOUBLE PRECISION, INTENT(OUT) :: CP
+!
+!+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+!
+ DOUBLE PRECISION TERM1,TERM2,TERM3,TERM4,TERM5,TERM6,TERM7,TERM8,C
+!
+!-----------------------------------------------------------------------
+!
+ IF(MIN(HA,HDVEG).LE.0.D0) THEN
+ CP = 0.D0
+ ELSE IF (MIN(HA,HDVEG).GT.0.D0.AND.HA.LE.HDVEG) THEN
+ CP = CD*A*HA
+ ELSE
+ TERM1 = SQRT(2.D0/(CD*A))
+ TERM2 = (ALFA*HDVEG)/HA
+ TERM3 = LOG(COSH(BETA/ALFA-HA/(ALFA*HDVEG))/(COSH(BETA/ALFA)))
+ TERM4 = SQRT(HDVEG*(HA/HDVEG-1.D0))
+ TERM5 = (HA-BETA*HDVEG)/HA
+ TERM6 = (HA-BETA*HDVEG)/HDVEG
+ C = -1/KARMAN*LOG(Y)
+ TERM7 = TERM1*(1.D0+(ZETA-1.D0)*(1.D0+TERM2*TERM3))
+ TERM8=TERM4*(TERM5/KARMAN*(LOG(TERM6)+KARMAN*C-1.D0)+CPI/KARMAN)
+ CP = 2.D0*HA/((TERM7+TERM8)*(TERM7+TERM8))
+ ENDIF
+!
+!-----------------------------------------------------------------------
+!
+ RETURN
+ END
diff --git a/sources/telemac2d/friction_def.f b/sources/telemac2d/friction_def.f
index f97cdeeb1badc6e76938286e85ad7ba380a65a5d..fe7dc2ed78220fc0071db1170f30578e014f838b 100644
--- a/sources/telemac2d/friction_def.f
+++ b/sources/telemac2d/friction_def.f
@@ -36,12 +36,12 @@
! SEQUENCE
INTEGER :: GNUMB(2) ! GLOBAL NUMBER OF THE ZONE
INTEGER :: RTYPE ! TYPE OF LAW USED
- INTEGER :: VTYPE
+ INTEGER :: VTYPE ! TYPE OF LAW FOR VEGETATION
! USE REAL BECAUSE CHESTR IS SAVED AS SIMPLE PRECISION IN SELAFIN DATA
! --------------------------------------------------------------------
DOUBLE PRECISION :: RCOEF ! FRICTION PARAMETER
DOUBLE PRECISION :: NDEF ! DEFAULT MANNING (FOR C-W LAW)
- DOUBLE PRECISION :: VCOEF(15) ! 15 COEFFICIENTS
+ DOUBLE PRECISION :: VCOEF(15) ! VEGETATION COEF: 15 COEFFICIENTS
TYPE(POINTER_TO_FRICTION), POINTER, DIMENSION(:) :: ADR
END TYPE FRICTION_OBJ
diff --git a/sources/telemac2d/friction_read.f b/sources/telemac2d/friction_read.f
index 9cfebe25291114d74f45ee3166387c2b241b801a..b734973091e85b2912ee55be7fce46cbc80ef535 100644
--- a/sources/telemac2d/friction_read.f
+++ b/sources/telemac2d/friction_read.f
@@ -6,7 +6,7 @@
& SB)
!
!***********************************************************************
-! TELEMAC2D V8P2
+! TELEMAC2D
!***********************************************************************
!
!brief FRICTION FILE READ.
@@ -375,6 +375,20 @@
& FRTAB%ADR(IZONE)%P%NDEF ,
& LAWVEG,
& (FRTAB%ADR(IZONE)%P%VCOEF(J),J=1,5)
+ CASE ('VCUI')
+ READ(NCOF,*,END=999,ERR=888)
+ & (CHAINE(J),J=1,N),LAWVEG,(R3(J),J=1,8)
+ FRTAB%ADR(IZONE)%P%VTYPE = 10
+ DO J=1,8
+ FRTAB%ADR(IZONE)%P%VCOEF(J) = R3(J)
+ ENDDO
+ WRITE(LU,11) FRTAB%ADR(IZONE)%P%GNUMB(1),
+ & FRTAB%ADR(IZONE)%P%GNUMB(2),
+ & LAW,
+ & FRTAB%ADR(IZONE)%P%RCOEF,
+ & FRTAB%ADR(IZONE)%P%NDEF ,
+ & LAWVEG,
+ & (FRTAB%ADR(IZONE)%P%VCOEF(J),J=1,8)
CASE DEFAULT
WRITE(LU,10) LINE, IZ1, IZ2, LAWVEG
CALL PLANTE(1)
diff --git a/sources/telemac2d/friction_zones.f b/sources/telemac2d/friction_zones.f
index 8b936884f8a77590d58ccf32c47dd386731700ce..42a99d6ee66d2c9ea779bc1d71c8447edf2f3312 100644
--- a/sources/telemac2d/friction_zones.f
+++ b/sources/telemac2d/friction_zones.f
@@ -7,7 +7,7 @@
& KARMAN, GRAV, T1, T2, CF, CFBOR)
!
!***********************************************************************
-! TELEMAC2D V8P4
+! TELEMAC2D
!***********************************************************************
!
!brief COMPUTES FRICTION FOR EACH NODE AND ZONE.
@@ -214,10 +214,18 @@
& VCOEFF%ADR(4)%P%R(I), VCOEFF%ADR(5)%P%R(I),
& KARMAN,CP)
CF%R(I) =CF%R(I)+CP
+ CASE (10)
+ CALL FRICTION_CUI
+ & (T1%R(I), VCOEFF%ADR(1)%P%R(I),
+ & VCOEFF%ADR(2)%P%R(I), VCOEFF%ADR(3)%P%R(I),
+ & VCOEFF%ADR(4)%P%R(I), VCOEFF%ADR(5)%P%R(I),
+ & VCOEFF%ADR(6)%P%R(I), VCOEFF%ADR(7)%P%R(I),
+ & VCOEFF%ADR(8)%P%R(I),KARMAN,CP)
+ CF%R(I) =CP
CASE DEFAULT
!
WRITE(LU,2) VEGLAW%I(I)
- 2 FORMAT(I5,' : UNKNOWN FRICTION LAW')
+ 2 FORMAT(I5,' : UNKNOWN VEGETATION FRICTION LAW ')
CALL PLANTE(1)
STOP
END SELECT
diff --git a/sources/telemac2d/interface_telemac2d.f b/sources/telemac2d/interface_telemac2d.f
index da96f897c77ad6f6ef8103295b2f1ec0612704c5..4b71e9f060eda43b5e0749e7bf4cc6dc19a0c08e 100644
--- a/sources/telemac2d/interface_telemac2d.f
+++ b/sources/telemac2d/interface_telemac2d.f
@@ -1163,6 +1163,18 @@
END INTERFACE
!
!-----------------------------------------------------------------------
+!
+ INTERFACE
+ SUBROUTINE FRICTION_CUI(HA,CD,A,HDVEG,ZETA,Y,ALFA,BETA,
+ & CPI,KARMAN,CP)
+ IMPLICIT NONE
+ DOUBLE PRECISION, INTENT(IN) :: HA,CD,A,HDVEG,ZETA,Y,ALFA
+ DOUBLE PRECISION, INTENT(IN) :: BETA,CPI,KARMAN
+ DOUBLE PRECISION, INTENT(OUT) :: CP
+ END SUBROUTINE
+ END INTERFACE
+!
+!-----------------------------------------------------------------------
!
INTERFACE
SUBROUTINE FRICTION_READ
diff --git a/sources/telemac2d/telemac2d.cmdf b/sources/telemac2d/telemac2d.cmdf
index 58d520040769d943245d694cbc853f5305812e61..ceeeafe72ee810c8b3755f534eb610be8de1c4f5 100644
--- a/sources/telemac2d/telemac2d.cmdf
+++ b/sources/telemac2d/telemac2d.cmdf
@@ -971,6 +971,7 @@ files: friction_def.f
friction_calc.f
friction_unif.f
friction_baptist.f
+ friction_cui.f
friction_huthoff.f
friction_hybrid.f
friction_jaervelae.f