Adrian Pop <[EMAIL PROTECTED]> writes:
> I think that it would be better to submit the
> bugs at the OpenModelica development server
> to have them filed for future reference.
Do I have to register anew for that or is this the same registration as
to openmodelicainterest?
> However you could also use the openmodelicainterest
> list or just send the email directly to me if you
> are not sure this is a bug or not.
Great!
Dieter
--
Best wishes
H. Dieter Wilhelm
Darmstadt, Germany
>
> Cheers,
> Adrian Pop/
>
> dieter wrote:
>> Hi Adrian,
>>
>>> This seems to be a bug. I added it to the CodeBeamer
>>> system we use for project planning and development.
>>> http://openmodelica.ida.liu.se:8080/cb/issue/1012
>>
>> Shall I submit (possible) bugs there or should I use the
>> openmodelicainterest mailing list?
>>
>> Dieter
>>
>>
>>
>>
>>> Cheers,
>>> Adrian Pop/
>>>
>>> dieter wrote:
>>>> Hi,
>>>>
>>>> I've got strange results with my overall model, even though the isolated
>>>> classes seem to work reasonably while testing. Basically I'd like to
>>>> simulate a hydraulic circuit, with a pump flow changing in time and
>>>> subsequent flow resistances.
>>>>
>>>> I reduced the problem to the following 3 primitive classes:
>>>>
>>>> connector Port
>>>> Real pressure;
>>>> flow Real flowrate;
>>>> end Port;
>>>>
>>>> model Pipe
>>>> Port port;
>>>> parameter Real a = 1;
>>>> equation
>>>> port.pressure = port.flowrate * a;
>>>> end Pipe;
>>>>
>>>> model Pump
>>>> Port port;
>>>> equation
>>>> port.flowrate = -( time - port.pressure);
>>>> end Pump;
>>>>
>>>> //------------------------------
>>>>
>>>> model Test
>>>> Pump pu;
>>>> Pipe pi;
>>>> equation
>>>> connect(pu.port,pi.port);
>>>> end Test;
>>>>
>>>> // simulate(Test);
>>>>
>>>> Probably I've some severe misconceptions about coupling of the
>>>> components because the model does not reproduce the analytical solution:
>>>>
>>>> pi.flowrate = time/(1+a)
>>>>
>>>> Results are basically constant (except for the time variable). There is
>>>> only a step change at the last time step!?
>>>>
>>>> Where am I wrong? Without your help, I'm totally stuck now! (I'm using
>>>> version 1.4.4 of OM.)
>>>>
>>>> Dieter
>>>>
>>>> --
>>>> Best wishes
>>>>
>>>> H. Dieter Wilhelm
>>>> Darmstadt, Germany
