hey… i got it…
this time not even a single error came…
thanks aaaaaa LLot ! 
@tsite @RicardoParis
i did read the documentation that u all send me…but it took some time to catch-up those things…i was not able understand many things 
but due to these errors, i think i got some idea about this simulation set-up…
i got the results but, i am not sure whether i am right or wrong…
its part of my university project …
can u tell me ,how can i validate my results with this…
how is it judged? iss the results right?? https://www.simscale.com/workbench/?pid=5718719288333594843&rru=d8b47e06-c440-48d0-9927-516ddd4239a5&ci=2faec5a8-7fc3-426a-9917-cd27e2ed3856&ct=PLOT&mt=SIMULATION_RESULT
the input values are briefed here:
flow rate = 323 m3/h =66.3342 kg/s
pressure outlet = 0 Pa
rotational velocity 35.0097 rad/s
shown in table 3 of the journal. i guess we need to compare this simulation result with fig.4 (graph)…
pls help me to figure this out…its been only a small part of my work 