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Yifeng Tang

MathWorks

Last seen: Today Attivo dal 2020

Programming Languages:
MATLAB
Spoken Languages:
Chinese
Pronouns:
He/him
Professional Interests:
Physical Modeling, Simscape Fluids, Simscape, Heat and Mass Transfer, Thermodynamics and Heat Transfer

Statistiche

All
  • Personal Best Downloads Level 2
  • 12 Month Streak
  • First Submission
  • GitHub Submissions Level 1
  • Knowledgeable Level 4
  • Revival Level 3
  • First Answer

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Visto da

Risposto
Failed to increase pressure of a system with an actuator. Whats wrong?
It looks like that you would like to move the piston & mass so the pressure in Chamber A of the actuator will increase and you a...

circa 18 ore fa | 0

Risposto
Simscape piston moves without pressure difference
You don't need a force to keep a mass moving at constant velocity, as the acceleration is zero and F=m*a. When I add a damper...

circa 19 ore fa | 0

| accettato

Risposto
simulation of a gas network node
It should be quite straightforward to build something like this: Just like how you draw that on paper. Simscape Onramp can b...

3 giorni fa | 0

Risposto
What is the mistake in the simulation, if the transient initialization at time x, solving for consistent states and modes, failed to converge?
Hi Emefun, It looks like the piston side of your hydraulic cylinder doesn't have any mass. Adding a mass block to the rod allo...

15 giorni fa | 1

| accettato

Risposto
False Results SIMSCAPE Pipe Block for cooling air stream
Hi Bastian, It sounds like in the simulation, the air stream is taking away less heat than in the test, resulting in a higher e...

22 giorni fa | 0

Risposto
Li-ion battery pack cooling using Phase changing material
Hi Chinmaya, This will involve some customization in Simscape language. The simpliest implementation is to make a custom block...

29 giorni fa | 0

Risposto
Simscape: Fan (MA) behavior with higher external flow
Hi Fabian, Check out this example: https://www.mathworks.com/help/hydro/ug/sscfluids_ev_thermal_management.html In the radiato...

30 giorni fa | 0

Risposto
Temperature varying input for reservoir in refrigeration cycle
Use a Controlled Reservoir (MA) block. https://www.mathworks.com/help/releases/R2023b/simscape/ref/controlledreservoirma.html ...

circa un mese fa | 0

Risposto
Centrifugal Pump doesnt increase pressure in Simscape for 2P-Fluid
Hi ÖMER, Two things I did to make the "Comminityfrage.slx" model to produce reasonable results. At the pump, make the max head...

circa un mese fa | 0

| accettato

Risposto
Simulink: Adding expansion valve and try to close the refrigerant loop but fail to converge with initial conditions
Hi Brendon, I'm concerned that the way you are taking heat out of the condenser may generated unintended consequences and make ...

circa 2 mesi fa | 0

Risposto
How is the correct heat transfer equation in the Simscape block "Pipe (TL)"?
The temperature at the outlet port will be the same as the temperature inside the pipe. So usually either T_A or T_B will be th...

circa 2 mesi fa | 0

Risposto
Tutorials on Two Phase Fluid models?
In Simscape Fluids, there is an example/tutorial on how to build one of the shipping example on refrigeration step by step. h...

circa 2 mesi fa | 0

Risposto
How can i plot P-H Diagram with two parameter are: Pressure and Temperature( With refrigerantion system)?
Hi Trieu, For points outside the vapor dome, P & T uniquely determine the state. You may use Reservoir (2P) or Controlled Rese...

circa 2 mesi fa | 0

Risposto
How to model combustion chamber or heater for gas turbine system using Simulink?
Hi Kheng, For this application, I would highly recommend that you use Simscape and Simscape Fluids for your physical modeling. ...

circa 2 mesi fa | 0

Risposto
Simscape Thermal Liquid Domain - Across variable T of parallel flows
Adding a pipe block after each of the custom components will work just fine as well. Indeed, ALL ports connected to the same ju...

circa 2 mesi fa | 0

Risposto
Problem with Condensator-Evaporator (TL-2P) block in simscape fluids
Hi Lorenzo, I too agree that having counter flow and flow perpendicular to bank of tubes at the same time doesn't quite make se...

circa 2 mesi fa | 0

Risposto
On what basis do you vary the Laminar Pressure Ratio parameter in the Local Restriction (MA) block in Simscape?
I've adjusted this parameter to match the shape of a deltaP-Q curve over an orifice inside a valve. But 99% of the time, I didn...

circa 2 mesi fa | 0

Risposto
How can I assamble n identical blocks in a simscape simulation automathically?
In addition to @Fangjun Jiang's suggestion on add_block(), I would encourage you to also look into the "composite component" opt...

circa 2 mesi fa | 1

Risposto
Error Temperature of liquid volume must be less than or equal to Maximum valid temperature
Hi Johannes, I took a look at your model. Two minor things, both in the pump subsystem, I'd suggest that you change: the unit...

circa 2 mesi fa | 0

Risposto
I want to use a solenoid valve to achieve two-phase flow on/off
First, you'll almost never see a valve block to be complete "off" in a model. You'll always see a minimum area or flow fraction...

circa 2 mesi fa | 0

Inviato


Intro-Examples-for-Simscape-CN
Model and scripts from video series on Simcape physical modeling

3 mesi fa | 20 download |

Risposto
Problems with the "System-Level Heat Exchanger (TL-MA)" Simscape block
Starting from "nominal temperatures and rate of heat transfer" means at time of 0, the fluids inside the volume will have the pr...

4 mesi fa | 0

Risposto
How do I take the translation output from one hydraulic cylinder rod and give it as an input to another so that it can act as a reciprocating pump in SIMHYDRAULICS?
I believe you have one of the hydraulic cylinder backwards. The left-right on the canvas doesn't indicate positive or negative ...

5 mesi fa | 1

| accettato

Risposto
Reciever Accumulator in Simscape inlet Liquid and Vapour problem
It doesn't matter what state/mixture goes INTO the receiver from which port; the block will get what's coming in. When the flui...

5 mesi fa | 0

| accettato

Risposto
2P-2P Heat Exchanger
A few thoughts: (1) maybe use a system-level heat exchanger (2P-2P) as a starting point, so you have a model that you can simul...

5 mesi fa | 0

| accettato

Risposto
Simcape real gas properties for N and H2
Coolprop is free. They also have MATLAB wrapper.

6 mesi fa | 0

Risposto
Brazed plate heat exchanger on Simscape
I would recommend the following combination of options: The key is to choose "generic" for tube section, so you can set th...

6 mesi fa | 2

| accettato

Risposto
two-phase flow 4-way valve
You may follow this example on how to make a N-way valve manually. https://www.mathworks.com/help/simscape/ug/hydraulic-actuato...

6 mesi fa | 0

Risposto
Simscape how to set up a multi-process evaporator or condenser
The architecture looks right: refrigerant in series and air flow in parallel, like the actual heat exchanger. A few things to p...

6 mesi fa | 0

| accettato

Risposto
How to model tanks with inlets above liquid level - partially filled pipes missunderstood?
You can find here two examples on how to use a tank block and a partially filled pipe together in an isothermal liquid model. T...

6 mesi fa | 0

| accettato

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