- The Short Answer: What a CSWP-FS Actually Is
- CSWP-FS, CSWP-Flow and the Name on the Certificate
- What the Exam Looks Like
- The 11 Topics You Are Expected to Handle
- Flow Simulation Is Not Structural Simulation
- Fees, Software, Retakes and Validity
- Who Benefits From the Credential
- Sequencing Your Preparation by Topic
- Frequently Asked Questions
- CSWP-FS is the Certified SOLIDWORKS Professional in Flow Simulation, issued by SOLIDWORKS (Dassault Systemes); the issuer's own designation is CSWP-Flow.
- The exam is 13 hands-on questions in 90 minutes, and you need 70% to pass.
- One attempt costs US$49 in the North American catalog, excluding software and training.
- The issuer lists 11 unweighted topics, from liquids and gas to controlling mesh size.
The Short Answer: What a CSWP-FS Actually Is
A CSWP-FS is a person who has earned the Certified SOLIDWORKS Professional - Flow Simulation credential. It is a practical, software-based certification from SOLIDWORKS, a Dassault Systemes brand, that verifies you can set up and run fluid-flow studies in SOLIDWORKS Flow Simulation, interpret what the results mean, and show a basic understanding of the finite volume method that sits underneath the solver.
The word that matters most is hands-on. This is not a vocabulary test about computational fluid dynamics. You are given a model, you build the study, you run it, and you extract the numbers the question asks for. If you want the broader overview of the credential first, our CSWP-FS certification page covers the essentials, and What Is CSWP-FS? approaches the same question from a slightly different angle.
CSWP-FS, CSWP-Flow and the Name on the Certificate
You will see this credential written several ways, and it helps to reconcile them before you search for preparation material.
| Label | Where you will see it | What it refers to |
|---|---|---|
| CSWP-FS | Study sites, forums, this site | Shorthand for the Flow Simulation professional certification |
| CSWP-Flow | SOLIDWORKS certification pages | The issuer's public designation for the same exam |
| SOLIDWORKS Flow Simulation Professional | Official exam page title | The full descriptive name |
All three point to one credential. When you search for practice material, queries like "CSWP Flow exam" and "SOLIDWORKS Flow Simulation certification" will often surface more relevant results than the abbreviation "CSWP-FS" alone, because the issuer itself uses the CSWP-Flow label. Related questions about the abbreviation are answered in What Does CSWP-FS Stand For? and CSWP-FS Meaning.
What the Exam Looks Like
Format and scoring
The exam contains 13 hands-on questions to be completed in 90 minutes. The minimum passing grade is 70%. That works out to roughly seven minutes per question, and in practice that is tight, because each question can require you to open a part or assembly, define a study, wait for the solver and then read a value from the results.
The exam is delivered through SOLIDWORKS with Tangix/VirtualTester, and the current delivery instructions use the VirtualTester Web Client. Older references to TesterPRO setup are legacy; follow the current browser-client instructions on the issuer's exam procedure page. The online timer cannot be paused, so plan a quiet block of time with a stable Internet connection and a machine that already runs your licensed software comfortably.
The question style
Expect scenario-driven tasks rather than recall prompts. A typical item might hand you a geometry and ask you to apply specific boundary conditions, run the calculation and report a pressure drop, a velocity at a location, a force on a face or a temperature in a solid. Because the answers come from your own solver run, small setup mistakes, such as the wrong unit system, a missed inlet, or a misdefined fluid, propagate straight into a wrong number. That is why the exam rewards careful, repeatable workflow more than clever shortcuts. For a realistic read on how demanding this is, see How Hard Is the CSWP-FS Exam?
The 11 Topics You Are Expected to Handle
The issuer publishes 11 exam topics. They are listed without weights, so you should not assume that earlier topics count for more or that every topic appears equally often. Treat them as a coverage checklist rather than a percentage blueprint. A deeper walkthrough lives in the CSWP-FS exam domains guide; here is what each one means in practice.
Domain 1: Liquids and gas
You need to choose the working fluid correctly and understand how its properties drive the solution.
- Selecting liquids versus gases in the project setup
- Recognizing when a fluid choice changes the physics you must enable
Domain 2: Internal and external flow simulations
Internal flow occurs inside enclosed passages; external flow wraps around a body in open space.
- Choosing the analysis type and understanding what it implies for the computational domain
- Knowing why internal studies need lids that close the model, while external studies use a surrounding domain
Domain 3: Internal systems involving multiple inlets or outlets
Real piping and manifold problems rarely have one inlet and one outlet.
- Assigning combinations of pressure, mass flow and velocity conditions
- Avoiding over- or under-specifying the boundary set so the problem stays well posed
Domain 4: Mixing of various fluids
Some studies involve more than one fluid entering the same space.
- Setting up the fluids and tracking how they combine
- Reading concentrations or properties from the results
Domain 5: Conjugated heat transfer
Heat moves between solid components and the fluid at the same time.
- Assigning solid materials and heat sources
- Interpreting temperatures in both the solid and the fluid
Domain 6: Natural and forced convection
Forced convection is driven by a fan or pressure difference; natural convection is driven by buoyancy.
- Knowing which physical settings a natural convection study needs
- Distinguishing the two cases when reading a problem statement
Domain 7: Extracting results such as force, velocity, or pressure
Running the study is only half the job; the exam asks you to pull specific values out.
- Using goals, cut plots and probes to retrieve values
- Checking that the number you report matches the quantity the question asked for
Domain 8: Working with various units
Unit handling is a quiet source of lost points.
- Setting the unit system for inputs and outputs
- Converting results to the unit a question requests
Domain 9: Working with configurations
SOLIDWORKS models carry configurations, and flow studies attach to them.
- Switching configurations and understanding how studies follow
- Running comparable cases across geometric variants
Domain 10: Duplicating and editing studies
Cloning a study and changing one condition is far faster than rebuilding from scratch.
- Copying a project and modifying boundary conditions or goals
- Keeping track of which variant produced which result
Domain 11: Controlling mesh size
Mesh settings influence accuracy and solver time together.
- Adjusting global and local mesh controls
- Balancing resolution against the 90-minute clock
Key Takeaway
Because the 11 topics are unweighted, prepare for breadth. A candidate who is excellent at conjugate heat transfer but shaky on units and study duplication can still lose enough points to miss the 70% line.
Flow Simulation Is Not Structural Simulation
A common point of confusion is how this credential relates to the structural side of SOLIDWORKS analysis. They test different physics and different habits.
| Aspect | Flow Simulation (CSWP-FS) | Structural simulation |
|---|---|---|
| Physical focus | Fluid motion, pressure, temperature, heat transfer | Stress, strain, deformation of solids |
| Typical inputs | Fluids, inlets, outlets, heat sources, lids | Fixtures, loads, material strength |
| Typical outputs | Velocity, pressure drop, forces from flow, temperatures | Von Mises stress, displacement, factor of safety |
| Mesh concern | Cell size within the flow domain, refinement near walls and features | Element size on the solid body |
If your background is structural FEA, expect a mindset shift. In flow work you define a computational domain and boundary conditions on fluid openings, and the quality of your answer depends heavily on whether the domain is closed or sized correctly. You can read more about how this connects to the finite volume method in the CSWP-FS study guide.
Fees, Software, Retakes and Validity
Cost and what it does not include
One exam attempt is US$49 in the North American catalog. That fee covers the exam credit only; it excludes software and training. You supply compatible licensed software and your own Internet access, so budget separately for those. The full picture is in CSWP-FS Certification Cost.
Software requirements
You need SOLIDWORKS Standard with SOLIDWORKS Flow Simulation 2018, or SOLIDWORKS Student Edition 2018, or a later version, as specified on the exact exam page. The 2018 figure is a software compatibility minimum, not an indication of which year the exam content was written. Check the exam page for the current requirement before you register.
Prerequisites
The general certification FAQ imposes no prerequisite certification for Professional exams, so you do not have to hold another SOLIDWORKS credential first. The SOLIDWORKS Flow Simulation course and Learning Path are recommended preparation, not mandatory gates. The details are summarized in CSWP-FS Requirements.
Retakes and validity
If you do not pass, you must wait at least 14 days and purchase another CSWP-Flow exam credit before retaking. On validity, the issuer's 2020 Certification Program Q&A states that customer and student certifications do not expire.
Who Benefits From the Credential
The CSWP-FS suits people whose work involves predicting how liquids or gases behave around and inside designed parts. Typical roles and situations include:
- Mechanical design engineers who validate cooling, ducting, valves or manifolds inside SOLIDWORKS before prototyping.
- Thermal and electronics-cooling engineers who need conjugate heat transfer results tied to real CAD.
- Simulation analysts at reseller, consultancy or product-development firms who need a recognized signal of Flow Simulation competence.
- Students and early-career engineers building a portfolio that shows applied CFD skills, not just coursework.
Treat the certificate as one piece of evidence alongside project work. Employers hiring for flow analysis usually care about whether you can show real studies, so pair the credential with examples you can discuss. For how this plays out in the market, read CSWP-FS Jobs, and for the economics see the CSWP-FS salary guide and Is the CSWP-FS Certification Worth It? No specific salary premium is guaranteed by the certification itself.
Sequencing Your Preparation by Topic
Because the exam is practical, preparation should be practical too. A short, topic-driven order works well, and you can compress or stretch it to fit your schedule. For a fuller plan, use the CSWP-FS study guide.
Core setup habits
- Liquids versus gases, internal versus external flow, and the lids and domain each requires
- Units: set and verify them on every project until it is automatic
Boundary conditions and fluids
- Multiple inlets and outlets, and well-posed boundary combinations
- Mixing of fluids and reading the resulting values
Heat transfer and convection
- Conjugated heat transfer with solid materials and heat sources
- Natural versus forced convection setups
Workflow speed and timed practice
- Configurations, duplicating and editing studies, and controlling mesh size against solver time
- Full 13-question runs inside 90 minutes, extracting force, velocity and pressure
Weeks three and four deserve extra repetition because they combine the most steps per question. Timed runs also reveal whether you are spending too long on mesh refinement, which is a common way to run out of clock. Once you can finish a full set comfortably, check your understanding of the cut-off with CSWP-FS Passing Score and keep the CSWP-FS cheat sheet handy for last-day review.
When you want realistic repetition, work through the scenario-style questions on our CSWP-FS practice test site, and revisit weak topics until the workflow feels routine rather than improvised.
Key Takeaway
Build and run real studies rather than memorizing facts. The exam rewards a clean, repeatable setup routine, and nothing builds that routine like doing complete projects from open file to extracted result.
Frequently Asked Questions
Here it stands for Certified SOLIDWORKS Professional - Flow Simulation. The issuer's own public designation for the exam is SOLIDWORKS Flow Simulation Professional, abbreviated CSWP-Flow. See What Does CSWP-FS Stand For? for more.
The exam has 13 hands-on questions to complete in 90 minutes. You need at least 70% to pass, and the online timer cannot be paused once you begin.
One attempt is US$49 in the North American catalog. That price excludes the software you need to run the exam and any training you choose to take. Retakes require another exam credit and a wait of at least 14 days.
No. The general certification FAQ imposes no prerequisite certification for Professional exams. The Flow Simulation course and Learning Path are recommended preparation, but they are not required. Details are in CSWP-FS Requirements.
The issuer's 2020 Certification Program Q&A states that customer and student certifications do not expire. Because policies can change, confirm current terms on the official SOLIDWORKS certification pages.