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Simscape Fluids - The best way to inputs parameters on the Displacement Pump Rexroth
Hi Diego, It's very common that the supplier doesn't provide ALL technical data. Some educated guess is often needed. The fir...

casi 4 años hace | 0

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How can i give more accurate initial conditions ?
The pump module has no input (velocity or torque) at the shaft. The system of equations is missing conditions needed to start t...

casi 4 años hace | 0

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What causes the pressure behavior in valves?
Hi Michael, I think there are a couple things at play here: First, there is currently no volume at all between the two reservo...

casi 4 años hace | 0

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Why the volumic flow rate sensor (motion air) is registering a negative value?
As @VBBV mentioned in the comment, switching the A/B port is likely the solution. Is this turbine block the same one as in theA...

casi 4 años hace | 0

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Simscape fluids and Ansys CFX
Hi Federico, For the block you mentioned, tabulated data or polynomial coefficients (which will require some data fitting) are ...

casi 4 años hace | 1

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Recursive type equation solution in simscape
Feels like you are trying to use Simscape like MATLAB :p, by considering how to use iterations to do the numerical integration. ...

casi 4 años hace | 0

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air-oxygen mixing model in a continuous process
You should be able to use the Moist Air (MA)domain for such a purpose. The domain keep tracks of the concentration, mass, and e...

casi 4 años hace | 0

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Problems with Organic Rankine Cycle Simulation
If you are new to Simulink and Simscape, consider the free, interactive tutorials known as the Onramps first. Simulink Onramp: ...

casi 4 años hace | 1

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How to connect elements form different simscape sub-libraries?
I believe you may use two orifices to achieve what you have described. Just control the input area to each to adjust the amount...

casi 4 años hace | 0

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How to use Simscape to solve heat conduction equation?
I guess by "wrong results" you mean the measured heat flow rate doesn't make sense? I noticed you connected the heat flow rate ...

casi 4 años hace | 0

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I get the following error; "Caused by: Variable 'fan_area' has been deleted from base workspace." in Simscape
The parameters of this model are all kept in the Simulink model workspace. So the fact that it's looking for things in the base...

casi 4 años hace | 0

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Modeling of a bypass valve in the two-phase structure
If "opening fraction is zero throughout" and the valve let through a significant fraction of the total mass flow, you have too m...

casi 4 años hace | 0

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How can I implement vanes (IGVs) on compressor unit in Simscape?
You are right about the compressor block: it doesn't support vanes as an input. I can think of one workaround, by using a 3D lo...

casi 4 años hace | 0

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how can i get the specific heat at constant volume for two phase fluid Water/Steam
Hi Mario, You should be able to calculate Cv from Cp, temperature, thermal expansion coeffcient, density, and bulk modulus. Al...

casi 4 años hace | 0

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Is it possible to calculate the "hydraulic-translation-multibody"-system backwards?
I would agree with you that the valve position couldn't be calculated the way you described. The force, though, can be found by...

casi 4 años hace | 0

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Variable Kv valve model
My suggestion would be to modify the code of a local restriction block, and move the Discharge Coefficient (Cd) from "parameter"...

casi 4 años hace | 0

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Pressure-flow characteristic for a 4-Way Directional Valve
I believe the pressure differentials refer to p.P-p.A, p.P-p.B, p.A-p.T, p.B-p.T. The flow direction is defined in the save way...

casi 4 años hace | 0

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How to add radiation heat transfer to 3-Zone Pipe (2P) ?
This may be a workaround: May the convective transfer coefficient in the 3-zone pipe ridiculously large, so it results in almos...

casi 4 años hace | 0

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How do I change the default settings (water) in Thermal Liquid (TL) Settings in my Simulink model?
Use the Thermal Liquid Settings block in Simscape / Foundation Library / Thermal Liquid / Utilities: https://www.mathworks.com/...

casi 4 años hace | 0

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Heat Excahnger TL Modeling Liquid Cooling
Looks like a follow-up on question https://www.mathworks.com/matlabcentral/answers/1624290-simulink-thermal-liquid-simulation?s_...

casi 4 años hace | 0

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Simulink Thermal liquid simulation
Hi Jan, There are a few things that need attention in your model: use of "absolute reference" blocks: this block prescribes an...

casi 4 años hace | 0

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Aggregate Equivalent Length of Local Resistances (AELoLR) Simscape hyd. Pipes
Hi Michael, This parameter is there to add some length to the pipe only in the equations that calculate the friction loss, see ...

casi 4 años hace | 0

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Equations for Simscape component Pipe (2P)
The blending happens in lines 324-327 (R2022a): % Smooth transition for heat transfer coefficient between liquid, mixture, ...

alrededor de 4 años hace | 0

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The model of the dehumidifier based on the Peltier element
Looks like a parametrization issue here. In the provided model, the peltier device has ~600Amp going through, and that's a lots...

alrededor de 4 años hace | 0

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It is possible to export a simscape fluid model to FMU?
If you can bring your Simscape model to fixed-step & fixed-cost (see this Doc page), you should then be able to generate a stand...

alrededor de 4 años hace | 0

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specify the mass of fluid in a closed system in Simscape
This question may give you some hints on heat pipe. Regarding the total mass in a closed system, you may run the model for a ve...

alrededor de 4 años hace | 0

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I think there is an error in the documentation or code of the variable local restricion (2P) of the simscape two-phase domain.
Typo in the Documentation. Expected to be fixed in future releases and updates. THANKS for pointing it out!!

alrededor de 4 años hace | 0

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Two component (liquid+gas) simulation
For the first case (air carrying liquid droplets), it MAY be possible to use MA domain and use the trace gas part of the model t...

alrededor de 4 años hace | 1

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Simscape: thermal liquid pump
In newer versions of Simscape Fluids, there are more pump modules available. In general, the pump can be modeled by using look...

alrededor de 4 años hace | 1

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Is there a simple model of temperature rise with time available for an internally heated tank losing heat to an ambient environment?
Something like this, with right parameters (which is usually the hard and time consuming part).

alrededor de 4 años hace | 0