Answered

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...

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...

5 months ago | 0

Answered

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!!

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!!

5 months ago | 0

| accepted

Answered

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...

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...

5 months ago | 1

Answered

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...

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...

5 months ago | 1

Answered

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).

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).

5 months ago | 0

Answered

Building Isothermal (SimHydraulics) parts in Thermal Fluid domain

It's six years later now lol ... There is a conversion tool for upgrading to the new Isothermal Liquid domain (NOT the one you...

Building Isothermal (SimHydraulics) parts in Thermal Fluid domain

It's six years later now lol ... There is a conversion tool for upgrading to the new Isothermal Liquid domain (NOT the one you...

5 months ago | 0

Answered

local restriction (2P)

Depending on what you mean by "a specific pressure differential": If you just want to drop/increase the pressure, regardless of...

local restriction (2P)

Depending on what you mean by "a specific pressure differential": If you just want to drop/increase the pressure, regardless of...

5 months ago | 0

Answered

What controlled design suitable for my simscape block? I would like to control the speed of the hydraulic cylinder for extending and retracting motion.

First of all, this: https://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fa...

What controlled design suitable for my simscape block? I would like to control the speed of the hydraulic cylinder for extending and retracting motion.

First of all, this: https://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fa...

5 months ago | 0

Answered

How can i parameter constant volume chamber (G) with inlets and oulets on simscape/simulink ?

Hi Lina, Simscape applies the pradigm of "acausal" modeling, meaning there is not a prescribed causality when the model is bein...

How can i parameter constant volume chamber (G) with inlets and oulets on simscape/simulink ?

Hi Lina, Simscape applies the pradigm of "acausal" modeling, meaning there is not a prescribed causality when the model is bein...

5 months ago | 0

Answered

Compatibility of ADAMS and Simulink simscape hydraulic?

Some info that may be useful for you: https://www.mathworks.com/products/connections/product_detail/adams-controls.html https:...

Compatibility of ADAMS and Simulink simscape hydraulic?

Some info that may be useful for you: https://www.mathworks.com/products/connections/product_detail/adams-controls.html https:...

5 months ago | 0

Answered

How can I avoid temperature blow-up when mass-flow goes to zero in thermal circuits?

One idea you can try: instead of using a heat flow rate source at the radiator, using a temperature source intead. This would r...

How can I avoid temperature blow-up when mass-flow goes to zero in thermal circuits?

One idea you can try: instead of using a heat flow rate source at the radiator, using a temperature source intead. This would r...

5 months ago | 0

Answered

Accessing Simscape Blocks Internal States

Hi Mike, Unfortunately that would require access and modification to the source code of this block, which is not open as those ...

Accessing Simscape Blocks Internal States

Hi Mike, Unfortunately that would require access and modification to the source code of this block, which is not open as those ...

5 months ago | 0

| accepted

Answered

ssc function vs 2 phase liquid pipe

What is "normal 2 phase liquid: Pipe(TL)"? One tool that may be helpful in such cases is the Solver Profiler. It help you ex...

ssc function vs 2 phase liquid pipe

What is "normal 2 phase liquid: Pipe(TL)"? One tool that may be helpful in such cases is the Solver Profiler. It help you ex...

5 months ago | 0

Answered

How can I use the fluid properties from Simscape Fluids in a Matlab script

Just copy the values into a MATLAB script and assign some variable names. If you didn't change the default values, the full tab...

How can I use the fluid properties from Simscape Fluids in a Matlab script

Just copy the values into a MATLAB script and assign some variable names. If you didn't change the default values, the full tab...

5 months ago | 0

Answered

Temperature dependent convection in simulink

You may move convection coefficient from "parameter" into "inputs" in the source code, and save as your own Simscape component. ...

Temperature dependent convection in simulink

You may move convection coefficient from "parameter" into "inputs" in the source code, and save as your own Simscape component. ...

5 months ago | 0

Answered

counter current heat exchanger - pipe TL temperature difference (model.T-W.T) not accurate

Interesting point and application you described. I agree, for counter flow heat exchangers, the deltaT you get between the ther...

counter current heat exchanger - pipe TL temperature difference (model.T-W.T) not accurate

Interesting point and application you described. I agree, for counter flow heat exchangers, the deltaT you get between the ther...

5 months ago | 0

Answered

4 way directional control valve port dimensions

The hydrostatic pressure does acts on such an area AND it only acts on the fluids. No pipe wall or any solid part is experienc...

4 way directional control valve port dimensions

The hydrostatic pressure does acts on such an area AND it only acts on the fluids. No pipe wall or any solid part is experienc...

5 months ago | 0

Answered

What do the simscape plugins have that simscape itself doesn't have?

Simscape Electrical, Driveline, and Fluids use the same physical domains in the Simscape foundation library, but with many more ...

What do the simscape plugins have that simscape itself doesn't have?

Simscape Electrical, Driveline, and Fluids use the same physical domains in the Simscape foundation library, but with many more ...

5 months ago | 0

Answered

Extracting the intermediate solution variables in simscape

Two quick ways I can think of: Add a variable. In equations, add "new_var == intermediate_var;". Move code out of "let ... in...

Extracting the intermediate solution variables in simscape

Two quick ways I can think of: Add a variable. In equations, add "new_var == intermediate_var;". Move code out of "let ... in...

5 months ago | 0

Answered

Connect Multiple Constant Volume Chambers.

Conneting ports of multiple constant volume chambers is DIFFERENT than connecting say multiple pipes to a same point. Connectin...

Connect Multiple Constant Volume Chambers.

Conneting ports of multiple constant volume chambers is DIFFERENT than connecting say multiple pipes to a same point. Connectin...

5 months ago | 0

| accepted

Answered

use of fluid property tables generated with twoPhaseFluidTables directly in Matlab

Yes, it's possible. The properties you get in the data struct are either functions of pressure, or functions of pressure and no...

use of fluid property tables generated with twoPhaseFluidTables directly in Matlab

Yes, it's possible. The properties you get in the data struct are either functions of pressure, or functions of pressure and no...

5 months ago | 1

| accepted

Answered

I want to model a gas flow in a pipe with 3 modes of Heat transfer using SIMSCAPE. How do I model the effective heat transfer?

The way the temperature sensor is placed in this model will make the heat flux to the ambient always ZERO. The temperature sens...

I want to model a gas flow in a pipe with 3 modes of Heat transfer using SIMSCAPE. How do I model the effective heat transfer?

The way the temperature sensor is placed in this model will make the heat flux to the ambient always ZERO. The temperature sens...

5 months ago | 0

Answered

Parametric Study with Simscape

In the Simscape block, you can use a MATLAB variable as the parameter. You can then change the value in that variable each time...

Parametric Study with Simscape

In the Simscape block, you can use a MATLAB variable as the parameter. You can then change the value in that variable each time...

5 months ago | 1

Answered

how to simultaneously define mass flow, temperature and pressure of a waste heat source in Simscape?

You may use a controlled reservoir and a controlled mass flow rate source to get the temperature and flow rate you want, as a fu...

how to simultaneously define mass flow, temperature and pressure of a waste heat source in Simscape?

You may use a controlled reservoir and a controlled mass flow rate source to get the temperature and flow rate you want, as a fu...

5 months ago | 1

| accepted

Answered

How can I model the openeing of a 2-Way Directional Valve by different percentages?

The way valves are modeled in the fluids domains is that it translates a spool position (S port input) to an orifice opening siz...

How can I model the openeing of a 2-Way Directional Valve by different percentages?

The way valves are modeled in the fluids domains is that it translates a spool position (S port input) to an orifice opening siz...

5 months ago | 0

| accepted

Answered

How can I set up the lookup table for a 2-way directional valve?

Regarding the error message in you comment: ['Trial/2-Way Directional Valve (IL)']: Size of Volumetric flow rate table, q(s,dp)...

How can I set up the lookup table for a 2-way directional valve?

Regarding the error message in you comment: ['Trial/2-Way Directional Valve (IL)']: Size of Volumetric flow rate table, q(s,dp)...

5 months ago | 0

Answered

How can I put the parameters of the 3-zone pipe (2P) model as a function?

Ideally, you would modify the source code of this block to implement such functions. However, the source code of 3-zone pipe is...

How can I put the parameters of the 3-zone pipe (2P) model as a function?

Ideally, you would modify the source code of this block to implement such functions. However, the source code of 3-zone pipe is...

5 months ago | 0

| accepted

Answered

Gradual area change (gradual contraction). Pressure loss

This correction factor is a parameter you may use to correlate the results from this block to the reference data (if available)....

Gradual area change (gradual contraction). Pressure loss

This correction factor is a parameter you may use to correlate the results from this block to the reference data (if available)....

5 months ago | 0

Answered

modeling thermal liquid system

Moving Barry Flannery's comment on 1 Feb 2016 to the Answer: Hi Vance, If you look at the bottom of the page there are two h...

modeling thermal liquid system

Moving Barry Flannery's comment on 1 Feb 2016 to the Answer: Hi Vance, If you look at the bottom of the page there are two h...

5 months ago | 0

Answered

Modelling a proportional pressure reducing valve in SimHydraulics

From ~10 years later ... The pressure feed can be included by using a hydraulic cylinder to model the force balance on the spo...

Modelling a proportional pressure reducing valve in SimHydraulics

From ~10 years later ... The pressure feed can be included by using a hydraulic cylinder to model the force balance on the spo...

5 months ago | 0