121 |
Phi = Phi - Msk * Fac * Del |
Phi = Phi - Msk * Fac * Del |
122 |
|
|
123 |
DelIp = ( Qip - Qi ) * MskI |
DelIp = ( Qip - Qi ) * MskI |
124 |
Phi = sign(1.,Phi)*sign(1.,DelIp)*abs(Phi+Eps)/abs(DelIp+Eps) |
Phi = sign(1. _d 0,Phi)*sign(1. _d 0,DelIp) |
125 |
|
& *abs(Phi+Eps)/abs(DelIp+Eps) |
126 |
|
|
127 |
DelI = ( Qi - Qim ) * MskIm |
DelI = ( Qi - Qim ) * MskIm |
128 |
rp1h =sign(1.,DelI)*sign(1.,DelIp)*abs(DelI+Eps)/abs(DelIp+Eps) |
rp1h =sign(1. _d 0,DelI)*sign(1. _d 0,DelIp) |
129 |
|
& *abs(DelI+Eps)/abs(DelIp+Eps) |
130 |
|
|
131 |
C TVD limiter |
C TVD limiter |
132 |
! Phi = max(0., min( 2./(1-cfl), Phi, 2.*rp1h/cfl ) ) |
! Phi = max(0. _d 0, min( 2./(1-cfl), Phi, 2.*rp1h/cfl ) ) |
133 |
|
|
134 |
C MP limiter |
C MP limiter |
135 |
d2 = ( ( Qip + Qim ) - 2.*Qi ) * MskI * MskIm |
d2 = ( ( Qip + Qim ) - 2.*Qi ) * MskI * MskIm |
139 |
B = 4.*d2p1 - d2 |
B = 4.*d2p1 - d2 |
140 |
C = d2 |
C = d2 |
141 |
D = d2p1; |
D = d2p1; |
142 |
dp1h = max(min(A,B,C,D),0.)+min(max(A,B,C,D),0.) |
dp1h = max(min(A,B,C,D),0. _d 0)+min(max(A,B,C,D),0. _d 0) |
143 |
A = 4.*d2m1 - d2 |
A = 4.*d2m1 - d2 |
144 |
B = 4.*d2 - d2m1 |
B = 4.*d2 - d2m1 |
145 |
C = d2m1 |
C = d2m1 |
146 |
D = d2; |
D = d2; |
147 |
dm1h = max(min(A,B,C,D),0.)+min(max(A,B,C,D),0.) |
dm1h = max(min(A,B,C,D),0. _d 0)+min(max(A,B,C,D),0. _d 0) |
148 |
qMD = 0.5*( ( Qi + Qip ) - dp1h ) |
qMD = 0.5*( ( Qi + Qip ) - dp1h ) |
149 |
qUL = Qi + (1.-cfl)/cfl*( Qi-Qim ) |
qUL = Qi + (1.-cfl)/cfl*( Qi-Qim ) |
150 |
qLC = Qi + 0.5*( 1.+dm1h/(Qi-Qim+Eps) )*(qUL-Qi) |
qLC = Qi + 0.5*( 1.+dm1h/(Qi-Qim+Eps) )*(qUL-Qi) |
151 |
PhiMD = 2./(1.-cfl)*(qMD-Qi+Eps)/(Qip-Qi+Eps) |
PhiMD = 2./(1.-cfl)*(qMD-Qi+Eps)/(Qip-Qi+Eps) |
152 |
PhiLC = 2.*rp1h/cfl*(qLC-Qi+Eps)/(qUL-Qi+Eps) |
PhiLC = 2.*rp1h/cfl*(qLC-Qi+Eps)/(qUL-Qi+Eps) |
153 |
PhiMin = max(min(0.,PhiMD),min(0.,2.*rp1h/cfl,PhiLC)) |
PhiMin = max(min(0. _d 0,PhiMD), |
154 |
PhiMax = min(max(2./(1.-cfl),PhiMD),max(0.,2.*rp1h/cfl,PhiLC)) |
& min(0. _d 0,2.*rp1h/cfl,PhiLC)) |
155 |
|
PhiMax = min(max(2. _d 0/(1.-cfl),PhiMD), |
156 |
|
& max(0. _d 0,2.*rp1h/cfl,PhiLC)) |
157 |
Phi = max(PhiMin,min(Phi,PhiMax)) |
Phi = max(PhiMin,min(Phi,PhiMax)) |
158 |
|
|
159 |
Psi = Phi * 0.5 * (1. - cfl) |
Psi = Phi * 0.5 * (1. - cfl) |