Search Results

Showing results 1 to 5 of 5
Search took 0.00 seconds. Search: Posts Made By: FMDenaro

Forum: Main CFD Forum

April 10, 2012, 17:47

Replies: 10

Pressure constant B.C. in fractional step method

Views: 1,854

Posted By FMDenaro

dp/dn = 0 is an approximation congruent to a...

dp/dn = 0 is an approximation congruent to a boundary layer approximation ... but can lead to some problems, that is largely discussed in literature.

the divergence-free constraint is satisfied at...

Forum: Main CFD Forum

April 10, 2012, 17:21

Replies: 10

Pressure constant B.C. in fractional step method

Views: 1,854

Posted By FMDenaro

1) put (dp/dx)i+1/2 = (1/dt) ( (u*)i+1/2 -...

1) put (dp/dx)i+1/2 = (1/dt) ( (u*)i+1/2 - (un+1)i+1/2 ) into the LHS of

( (dp/dx)i+1/2 - (dp/dx)i-1/2 )/dx = (1/dt) ( (u*)i+1/2 - (u*)i-1/2 )/dx (1)

and will get

( (dp/dx)i-1/2 )/dx =...

Forum: Main CFD Forum

April 10, 2012, 15:34

Replies: 10

Pressure constant B.C. in fractional step method

Views: 1,854

Posted By FMDenaro

Sorry, I was wrong in copying and pasting the...

Sorry, I was wrong in copying and pasting the LHS of (3), it writes

( (dp/dx)i-1/2 )/dx = (1/dt) ( (un+1)i+1/2 - (u*)i-1/2 )/dx

... the Eq.(2) prescribes a relation between the normal...

Forum: Main CFD Forum

April 10, 2012, 11:18

Replies: 10

Pressure constant B.C. in fractional step method

Views: 1,854

Posted By FMDenaro

what is the issue you have not understood?

what is the issue you have not understood?

Forum: Main CFD Forum

April 10, 2012, 06:52

Replies: 10

Pressure constant B.C. in fractional step method

Views: 1,854

Posted By FMDenaro

for example in the pressure-free method (Moin &...

for example in the pressure-free method (Moin & Kim) a constant pressure outlet gives you (one-dimension x, second order discretization)

( (dp/dx)i+1/2 - (dp/dx)i-1/2 )/dx = (1/dt) ( (u*)i+1/2 -...

Showing results 1 to 5 of 5

Forum Jump

All times are GMT -4. The time now is 19:45.