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Simscape Two phase domain - concepts and logic
The general principles of the two-phase domain are conservation of mass, momentum, and energy, just like the gas, moist-air, and...

4 years ago | 0

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Modelling shell and tube heat exchanger
If you are trying to model the heat exchanger using the blocks only from the foundation library, you may will need to modify the...

4 years ago | 0

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Is the two-phase heat transfer in the Simscape pipe based on a moving-boundary or finite-volume model?
The Pipe (2P) block is modeled using a "lumped"-parameter approach. Most of Simscape foundation blocks are modeled as a "lumped...

4 years ago | 0

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Simulating a Constant Pressure Heat Exchanger
Why won't a constant volume chamber work? Is that because the inlet and outlet flow may be different instantaneously and the li...

4 years ago | 0

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supply variable efficiency map to a hydraulic pump
In newer versions of Simscape Fluids, the fixed-displacement pumps allow lookup tables as inputs to specify the efficiency as a ...

4 years ago | 0

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Natural gas consumption forecasting
I feel like ARIMA (https://en.wikipedia.org/wiki/Autoregressive_integrated_moving_average) may be a suitable tool/model for this...

4 years ago | 0

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How can I solve my iteration problem
By galancing the equations you have in the iteration, looks like this is a highly nonlinear problem. The simple "replacement" i...

4 years ago | 0

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Hydraulics Circuit with load
I believe the confusion may come from the fact that in Simscape there is no gravity implied, unless Simscape Multibody is involv...

4 years ago | 0

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Gas accumulator initial pressure
The volume in the initial condition (Variables tab) is supposed to be the volume of the liquid. Not sure about R2013a, but in m...

4 years ago | 0

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ERROR Pressure fell below zero SimHydraulic
Pressure below zero error occurs most likely when the liquid is pulled through an orifice/resistance/pipe/valve or forced to exp...

4 years ago | 0

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How to make assembly between induction motor,centrifugal pump and open/close valve for tank in simulink. Please guide to work out my query
There are a few blocks in Simscape Fluids that you can use to model the tank https://www.mathworks.com/help/physmod/hydro/ref/t...

4 years ago | 0

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How can I get the Parameters for Contact stiffness and contact damping
Not sure about the RIGHT way to do this, but here is my two-step approach: 1. set a reasonable stiffness: set up the model to a...

4 years ago | 0

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HOW could I add a tilt actuator in Simulink project.
This can be best handled by using Simscape Multibody and Simscape Fluids together. Some examples in the documentation: https:/...

4 years ago | 0

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Why the dry air enthalpy in simscape perfect gas model is 420 ? It should be 293
I believe it depends on where 0 kJ/kg specific enthalpy is defined. In Simscape, looks like it's defined such that at 0K, h=0...

4 years ago | 0

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Answered
Modelling a Pressure Reducing Valve
If you have access to Simscape Fluids add-on library, a pressure reducing valve block is available in the Hydraulic domain since...

4 years ago | 0

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How can I simulate a Hydropnuematic suspension using simulink if the piston has a fixed orifice???
Something like this should work. Parameters and initial conditions will also be critical for the model to generate reasonable r...

4 years ago | 0

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hydraulic pressure sensor and hydraulic flow rate sensors dont' work when used together
I suspect that you connected the sensors in series ... A pressure sensor is a sensor for an "across variable", so it's always m...

4 years ago | 0

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Two-Phase Steam Flow Control
9+ years after the question was asked: It sounds like this application can be best handled using the two-phase fluid domain, wh...

4 years ago | 0

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why have i this error: "Number of equations exceeds number of variables."
10 years after when the question was asked ... the thermal liquid domain should be able to handle the thermal+hydraulic applicat...

4 years ago | 0

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how to design hydraulic actuator for suspension system?
Attempt to answer from 10 years later .... lol I suggest you use Simscape Multibody to model the mechanical part of the suspens...

4 years ago | 0

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Demos of SimHydraulics on Matlab R2010a
Try this page for documentations in different versions: https://www.mathworks.com/help/doc-archives.html Then navigate to the r...

4 years ago | 0

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Simulation of Cooling Towers using Matlab
A quick answer is yes. The main challenge I think is the find a correlation that works for YOUR cooling tower. The info in the ...

4 years ago | 0

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Solenoid Valves Controlled With Simhydraulics
Thoughts on a few issues you may encounter building such a model and how to resolve them: 1. model the air bag. The volume and...

4 years ago | 0

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Can I simulate this simple rod pump in SimHydraulics?
In its simplest form, I think a rod pump can be conceptualized as a single-acting cylinder with two check valves. One check val...

4 years ago | 0

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How to get RC circuit parameter for equivalent circuit diagram from measurement Graph?
Simscape user here. So first, I would build the thermal network using the thermal domain. It's just a few thermal resistance a...

4 years ago | 2

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Answered
co-simulation within Simulink
It sounds to me that the easiest way is to set up two Simulink simulations. Save the output from the 1st one to the MATLAB work...

4 years ago | 1

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Missing something in Simscape.
The force sensor is a sensor for "through variable", so you'll need to connect in series with the element on which you'd like to...

4 years ago | 0

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How can solve this error: Output 'Taout' declared with unit expression that contains an affine unit: 'degC'. Affine units are not allowed when declaring members of this type.
Declare temperatue units in K. That's what the error message is saying. The numerical value of the temperature may be overridd...

5 years ago | 0

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Ideal Check Valve (Thermal Liquid, Simscape)
Hi Mash, Having a check value (or any closed valve) with absolutely zero leakage is in general a bad idea. It basically change...

5 years ago | 1

Answered
I'm not getting an expected temperature/pressure output from cooling a 600 [F] copper object [FEEDBACK REQUEST]
Looks like the convective coefficient was too small. Also, since the pipe has a wall model for heat transfer, you may not need ...

5 years ago | 0

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