# Yifeng Tang

### MathWorks

Last seen: 2일 전 2020년부터 활동

Followers: 1   Following: 0

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

All

배지 보기

#### Feeds

보기 기준

답변 있음
Hi Pablo, To the best of my knowledge, there isn't a block designed specifically for this type of heat exchanger, with coolant/...

4일 전 | 1

| 수락됨

답변 있음
Add "Block Parametrization Manager" to custom ssc block for Simscape
It's not supported for your use case here. Consider put together a custom Simulink library instead, where you can store and loc...

15일 전 | 0

| 수락됨

답변 있음
Simulation of two phase fluid with Simscape - pressure behavior unexplicable
Hi Marcel, The port area parameter of the Receiver Accumulator block doesn't affect the pressure drop between inside and outsid...

16일 전 | 0

답변 있음
You can only to "Convex Hull" for generic geometry (e.g. a stp file). It may or may not be good enough for your contact force m...

18일 전 | 0

| 수락됨

답변 있음
The Excavator Hydraulic Jack Forces are Changing Direction in Simscape Multibody
The way the joints are actuated and the joint forces are sensed for inverse dynamic analysis looks OK. As a position signal is ...

19일 전 | 1

| 수락됨

답변 있음
Fluid inertia in Simscape hydraulic
Hi Amodio, I don't think the actuator blocks model the inertia of the fluid inside. The "cushion" can be used to model some en...

19일 전 | 0

답변 있음
Center of mass of a free-floating body in Simscape Multibody is moving with no external forces
I believe there can be many solutions that would satisfy the initial conditions you have set. The only target set here is the s...

23일 전 | 0

| 수락됨

답변 있음
Flow rate discrepancy between upstream and downstream of orifice model.
A diffential pressure 2950 psi sounds big enough to change the density of the fluid. As the density changes, volumetric flow ra...

24일 전 | 0

답변 있음
Simscape Fluids model of closed system
Hi Jeremy, Looks to me like an initialization issue. I don't have R2020b on my computer so I tried this on R2021b, the oldest ...

24일 전 | 0

답변 있음
How to make a revolute joint turn in one direction in Simscape?
There may be better solutions, but just some ideas. If you have access to Simscape Driveline, there is a one-way clutch (Unid...

26일 전 | 0

답변 있음
Pressure drop of a two-phase fluid pipeline in simscape
You can view the Simscape code of the Pipe (2P) block, save a copy, and modify it to use a custom correlation if you like. Find...

29일 전 | 0

| 수락됨

답변 있음
Can "pipe(G)" block be used to model forced air convection?
I think it's possible. The combination of cross section and hydraulic diameter will give you a circumference; that multiplied b...

대략 1개월 전 | 0

| 수락됨

답변 있음
HOW CAN I TURN AN EQUATION INTO COMPONENT IN A LIBRARY?
Hi Usha, In addition to Ayush's answer, I suggest that you look at the source code of a translational spring block. You custom...

대략 1개월 전 | 1

답변 있음
How does simscape caculate the hydraulic pressure?
The pump blocks in Simscape Fluids models the flow rate at different pressure difference and speed, but themselves are "volume-l...

대략 1개월 전 | 0

답변 있음
state flow入门之旅中的诸多疑问

대략 1개월 전 | 0

답변 있음
Use Simscape parameter as variable in Simulink model
If it's in the Simscape Results Explorer, you should be able to use a Probe block to make it available during simulation as a Si...

대략 1개월 전 | 0

답변 있음
Using the TL-2P heat exchanger in simscape to simulate an external threaded tube heat exchanger
The way you set up the heat exchanger looks promising to me. I would use the Parameter Estimator App (Documentation) to estimat...

대략 1개월 전 | 0

| 수락됨

답변 있음
why are the results different from moist air domain(MA) using only dry air and gas domain(G)? - simscape
Hello, Given the range of temperature you'd like to implement, I believe you are seeing the difference in the way the specific ...

대략 2개월 전 | 1

답변 있음
The sum of the 2 branches flow is different than pump flow
Hi Flavio, I looked at the model and below are my observations. the parameters and inputs for the pump look ridiculous: at 1m^...

대략 2개월 전 | 2

| 수락됨

답변 있음
Simscape 4-Way 3-Position Directional Valve (IL) No "Fluids/Plot Valve Characteristics" Option
See the comment section for the discussion. Issue resolved (by itself) as of now.

대략 2개월 전 | 0

답변 있음
Pipe (TL) fluid compressibility problem
See this related question for a more detailed discussion: https://www.mathworks.com/matlabcentral/answers/2111661-rservoir-tl

3개월 전 | 0

| 수락됨

답변 있음
Rservoir (TL)
Hi Karim, I did a few things that feel like best practices to me: (1) add a Tank (TL) block to where the reservoir was. Pleas...

3개월 전 | 0

| 수락됨

답변 있음
Heat Exchanger (TL-TL) breaking thermodynamics?!
This shouldn't happen for parallel-flow heat exchangers, because of 2nd law of thermo-dynamics. But this may happen for counter...

3개월 전 | 1

| 수락됨

답변 있음
hydraulic circle for fire suppression system clean agent
Hi Albara, It will be helpful if you could provide some schematic to show the interior of the agent tank so we can understand t...

3개월 전 | 0

답변 있음
Simscape Gas Inertia block
Hi Caleb, "Fluid inertia is negligible." is one of the model assumption of the Pipe (G) block. You may be able to modify the c...

4개월 전 | 0

답변 있음
Simscape fixed displacement pump pressure gain wrong?
Hi Sandro, one quick thing to fix: you need another reservoir at port B, otherwise the fluid has nowhere to go. The reservoir a...

4개월 전 | 0

답변 있음
Modeling a pressurized flexible body (balloon) in simscape multibody/fluids
Hi Siril, I feel the problem may be way more complicated than just "the two open red open wires". To model this pressurized fl...

4개월 전 | 0

| 수락됨

답변 있음
Isothermal Fluids Pump/Motor Case Drain
Hi Philip, I feel the way you model it is very reasonable. Adding an small orifice or check valve mimics what happens in real ...

4개월 전 | 0

답변 있음
Changing Thermal Liquid Properties in Simscape
If you'd like to manually set the properties like density, Cp, etc., the right block to use is "Thermal Liquid Settings (TL)" fr...

4개월 전 | 0

답변 있음
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...

5개월 전 | 0

| 수락됨