Learning Forum

[RAJEH]

I am trying to simplify the problem here. These are codes for dynamic boundary conditions. The first hour (Temperature = 30, and mass flow rate= 0.583) the second hour (Temperature = 30, and mass flow rate= 0), the third hour (Temperature = 6, and mass flow rate= 0.583), the fourth hour (Temperature = 30, and mass flow rate= 0). I am not getting the results that I expected. Do you have any suggestions for me to correct or use another approach to write my codes?

DEFINE_PROFILE(give_T_top_outerfluid,t,index)

{
real time=RP_Get_Real("flow-time");
real total_time = 0;
begin_f_loop(f,t)

{
total_time = total_time + ceil(time);
if(total_time <= 3600 )
{
F_PROFILE(f,t,index)= 30 +273.15;
}
else if(total_time > 3600 && total_time <= 7200)
{
F_PROFILE(f,t,index)= 30 +273.15;
}
else if(total_time > 7200 && total_time <= 10800)
{
F_PROFILE(f,t,index)= 6 +273.15;
}
else
{
F_PROFILE(f,t,index)= 6 +273.15;
}
}
end_f_loop(f,t)
}


DEFINE_PROFILE(give_mass_flow_rate,t,index)

{
real time=RP_Get_Real("flow-time");
real total_time = 0;
begin_f_loop(f,t)

{
total_time = total_time + ceil(time);
if(total_time <= 3600 )
{
F_PROFILE(f,t,index)= 0.583;
}
else if(total_time > 3600 && total_time <= 7200)
{
F_PROFILE(f,t,index)= 0;
}
else if(total_time > 7200 && total_time <= 10800)
{
F_PROFILE(f,t,index)= 0.583;
}
else
{
F_PROFILE(f,t,index)= 0;
}
}
end_f_loop(f,t)
}
Attached are graphs of the physical goal of writing the codes.