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Expression NV_VEC,NV_D,NV_S,NV_DS

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Old   January 25, 2007, 01:43
Default Expression NV_VEC,NV_D,NV_S,NV_DS
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J.Y.Shin
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I want to know the meaning of the following expression.

1. real NV_VEC(psi), NV_VEC(A); 2. NV_D(psi, =, F_U(f,t), F_V(f,t), F_W(f,t)); 3. NV_S(psi, *=, F_R(f,t)) 4. NV_DS(psi_vec, =, F_U(f,t), F_V(f,t), F_W(f,t), *, dens);
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Old   January 25, 2007, 15:04
Default Re: Expression NV_VEC,NV_D,NV_S,NV_DS
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Sujith
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VEC for vector, D for directions and S for scalar;

real NV_VEC(psi--- defines a vector psi[0]i+psi[1]j+psi[2]k

NV_D(psi,=,u,v,w)--- assigns values in 3directions to a vector

psi = ui+vj+wk

NV_S(psi,*=,R) => psi = psi * R (assigns/modifies magnitude)

NV_DS(psi_vec,=,u,v,w,*,dens) =>direction & scalar operations

psi_vec = (ui+vj+wk)*dens;
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Old   September 21, 2012, 23:23
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nguyentuan
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How about
real NV_VEC(A)
Mean of letter (A) in above code ?
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Old   February 20, 2014, 07:18
Default meaning of other commands
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PSM
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NV_VV
NV_cross
NV_s
nv_v

pls can u elaborate the above commands
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