TITLE CARD
A title card is identified by an equal sign (=) as the first nonblank character.
= inpp rbmk-1500 relap5 model
CARD 100, PROBLEM TYPE AND OPTION
Card 100
W1(A) PROBLEM TYPE = new
Specifies a new simulation problem.
W2(A) PROBLEM OPTION = transnt
Specifies a transient calculation.
CARD 102, UNITS SELECTION
Card 102
W1(A) INPUT UNITS = si
Inputs will be in SI units.
W2(A) OUTPUT UNITS = si
Outputs will be in SI units.
CARDS 120 - 129, HYDRODYNAMIC SYSTEM CONTROL
Card 120
W1(I) REFERENCE VOLUME NUMBER = 100010000
Reference volume is the steam drum.
W2(R) REFERENCE ELEVATION = 30.0 m
Volume center position is at reference elevation 30.0 m (Ref. [2]), the height of the steam drum centerline.
W3(A) FLUID TYPE = h2o
W4(A) ALPHANUMERIC NAME OF SYSTEM USED IN OUTPUT EDITING = ignalina
CARDS 201 - 299, TIME STEP CONTROL
Card 201
W1(R) TIME END FOR THIS SET = 100.0 s
Value is arbitrary.
W2(R) MINIMUM TIME STEP = 1.e-6 s
W3(R) MAXIMUM TIME STEP = 0.0075 s
The maximum time step that should be used with this model is 0.01 s. A time step to time step oscillation has been observed in the results of this model. The magnitude of this oscillation can be minimized by reducing the time step size. A value of 0.0075 is recommended.
W4(I) TIME STEP CONTROL OPTION (ssdtt) = 00003
ss = 00 All the standard major printed output will be given.
d=0 The standard output will be printed at the requested frequency using the maximum time.
tt = 03 The semi-implicit hydrodynamic scheme will be used.
There are two general options for the hydrodynamic solution, semi-implicit and nearly implicit. The specification of ssdtt equal to 00003 is the recommended method to run the code using the semi-implicit scheme. Although the use of the nearly-implicit scheme may be advantageous for steady state simulations or non-dynamic transients, it is not recommended for dynamic transients (Ref. [1]). The semi-implicit method was selected to provide a consistent solution scheme for both the steady state and transients.
W5(I) MINOR EDIT AND PLOT FREQUENCY = 1000
Number of requested time advances per minor edit. Arbitrarily set.
W6(I) MAJOR EDIT FREQUENCY = 100000
Number of requested time advances per major edit. Arbitrarily set.
W7(I) RESTART FREQUENCY = 100000
Number of requested time advances per write of restart information. Arbitrarily set.
CARDS 301 - 399, MINOR EDIT REQUESTS
Cards 301-314
The following minor edits were used to verify specific component values, during the model development. The format for these variables is:
W1(A) VARIABLE CODE
W2(I) PARAMETER.
301 cntrlvar 212
302 cntrlvar 222
303 cntrlvar 232
304 cntrlvar 217
305 cntrlvar 227
306 cntrlvar 237
307 p 100010000
308 p 500010000
309 p 600010000
310 cntrlvar 701
311 cntrlvar 704
312 mflowj 195000000
313 mflowj 595000000
314 rkreac 0
315 rktpow 0