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Pressure in a closed thermal liquid system
You'll need a "tank" to stablize this. What happens is that the density of the fluid is a function of pressure and temperatur...

4 mois il y a | 0

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I have confusion in Simscape Co2 transcritical system example. How you had designed compressor i dont get it and why you used PS LOOK UP TABLE 2D IN COMPRESSOR. Do i need a specific date to run this
The 2D LUT and an ideal flow rate source is to represent the BEHAVIOR of a compressor. If the pressure ratio (outlet/inlet) ris...

4 mois il y a | 0

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Looking for the base model of the counter balance valve
comment from 8 years later, lol. I don't think you can access the source code behind the blocks in Simscape Fluids (new product...

5 mois il y a | 0

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SimHydraulics "Failed to solve using iteration matrix. Initial conditions solve failed to converge."
Force sensor should be placed inline with there the force passes through, just like measuring a current. The force sensor in yo...

5 mois il y a | 0

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Hydraulic circuit between two pressure sources
The pressure sensor you have there blocks the flow totally, lol. It's like voltmeter where no current is let through. Usually ...

5 mois il y a | 0

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How to solve unconverged equations error ?
My experience: this typically happens when the piston moves while flow is constricted in the expanding chamber of the cylinder. ...

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I am guessing, you are trying to build a valve block that will achieve any given pressure at its outlet? I think the best way t...

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How does the Gate Valve (TL) block utilize "Cross-sectional area at ports A and B" and "Characteristic longitudinal length"?
In the latest version (R2022a), this characteristic length isn't a parameter anymore. In an earlier version (R2020b), I couldn'...

5 mois il y a | 0

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Simscape simulation of Hydraulic/Gas chamber
Maybe this will work: Use the TL-G tank and the insulators you mentioned. It should be able to do 1-4 and 6 of your requirement...

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Simscape Fluids Valve models: Do they exhibit non-linearity too?
The Simscape valve components uses the spool position signal at the S port to determine the orifice areas (or dP-Q relationships...

5 mois il y a | 0

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Hi Brett, I think we have discussed this during a meeting. Just put some notes here so more people may benefit from your quest...

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Cant implement the heat exchanger (simscape library) in an existing simulink model
You probably need a few (Controlled) Reservoir (TL)blocks to prescribe the pressure and temperature boundary conditions, and a C...

5 mois il y a | 0

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Simulink Thermal Hydraulic systems specify elevation
I would recommend that you try the Tank (TL) and Pipe (TL) from the Simscape Fluids library. Both allow you to specify an eleva...

5 mois il y a | 0

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Customized Simscape convective heat transfer component not working
Hi Roland, I believe you are missing one equation to define how Q is related to the heat flow through the ports. Try adding th...

5 mois il y a | 0

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Trapped air in fluid
The entrained air affects how the bulk modulus (hence also density) changes as a function of the pressure. More air will make t...

6 mois il y a | 0

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Dynamic calculating of kinematic viscosity
The source code of all Simscape foundation library blocks are available, including the hydraulic domain. I can verify back to t...

6 mois il y a | 0

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What would be the total flow rate inside the hydraulic cylinder chamber when modeled with piston chamber and hydro-mechanical converter?
The first a few paragraphs of the documentaion pages for theTranslational Mechanical Converter (IL) and the Translational Hydro-...

6 mois il y a | 0

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How to move the rod of a cylinder?
So far, the only way in Simscape to prescribe a mechanical motion is using a velocity source, while in Simscape Multibody, the o...

6 mois il y a | 0

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Specific and ideal pressure and flow
In general, one cannot prescribe both the pressure at and the flow through a node at the same time. If a pressure is prescribed...

6 mois il y a | 0

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Depending on what physical domain you are thinking of, a few pipeline blocks in the Simscape Fluids library allow the modeling o...

6 mois il y a | 0

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How to control simscape ball valve block
Looks like an earlier version of question: https://www.mathworks.com/matlabcentral/answers/502708-control-of-ball-valve?s_tid=s...

6 mois il y a | 0

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Simscape 2P: How can I realize both varying local restriction and blocking the flow path.
Besides from my comment earlier, I've found that using a custom block of a "variable flow resistance" seems to make thing easier...

6 mois il y a | 0

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Optimal components for a two-stage heat pump in Simscape
It puzzles me why there isn't a flow out of the BV port of the tank. There isn't a flow into BV port either? The BV port is co...

6 mois il y a | 1

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Simscape Pipe array (many pipes in parallel)
It's possible to do it in the way you described. I attached a sample of "flow multiplier" and "thermal liquid multiplier". Dep...

6 mois il y a | 0

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how can i do two phase to thermal liquid connection?
Hi Davod, This wasn't possible until the R2021a release of Simscape Fluids. https://www.mathworks.com/help/physmod/hydro/ref/i...

6 mois il y a | 0

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How change simscape simulation time from seconds (sec.) to hours (h)
Just to summarize the thread of comments, so the question appears as "Answered". The easiset way is to multiply the duration of...

6 mois il y a | 0

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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...

6 mois il y a | 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...

6 mois il y a | 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...

6 mois il y a | 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...

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