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CSWP-FS Certification

TL;DR
  • The exam is 13 hands-on questions in 90 minutes, with a 70% minimum passing grade.
  • The issuer's public name for it is SOLIDWORKS Flow Simulation Professional, CSWP-Flow.
  • The fee is US$49 per attempt in the North American catalog, excluding software and training.
  • The issuer lists 11 unweighted topics; do not assume any topic carries more points.

What the CSWP-FS Certification Actually Is

The CSWP-FS certification, issued by SOLIDWORKS (Dassault Systemes), is a professional-level credential for people who use SOLIDWORKS Flow Simulation to analyze fluid flow and heat transfer. On the issuer's own pages the exam goes by SOLIDWORKS Flow Simulation Professional, CSWP-Flow. If you see "CSWP-Flow" in official material, it refers to the same exam this site prepares you for as CSWP-FS. If you want a plain-language primer first, see What Is CSWP-FS? or What Does CSWP-FS Stand For?.

What distinguishes this credential from a knowledge quiz is its practical nature. Candidates set up and run fluid-flow studies, interpret the results, and demonstrate a basic understanding of the finite volume method that underlies the solver. In other words, you are expected to open a model, build a study, solve it, and pull defensible numbers from the output.

Naming note: The acronym "CSWP-FS" is shared by other credentials in unrelated fields. Everything on this page refers only to the SOLIDWORKS Flow Simulation exam. Do not mix its details with those of any similarly abbreviated certification when researching fees, dates or content.

Exam Format, Fee and Delivery

The logistics are simple, but several details trip up first-time candidates, so it pays to read them closely before you pay for an attempt.

ItemWhat the issuer states
Questions13 hands-on questions
Time limit90 minutes; the online timer cannot be paused
Passing gradeMinimum 70%
FeeUS$49 for one attempt in the North American catalog; excludes software and training
DeliverySOLIDWORKS through Tangix/VirtualTester; current instructions use the VirtualTester Web Client
SoftwareSOLIDWORKS Standard with SOLIDWORKS Flow Simulation 2018, or SOLIDWORKS Student Edition 2018, or later, per the exact exam page
RetakesAt least 14 days between attempts and another CSWP-Flow exam credit
PrerequisitesThe general certification FAQ imposes no prerequisite certification for Professional exams
ValidityCustomer and student certifications do not expire (issuer's 2020 Q&A)

Two practical points deserve emphasis. First, you supply your own compatible licensed software and Internet access, so confirm that Flow Simulation actually launches on your machine well before exam day. Second, the current browser-client instructions supersede legacy TesterPRO setup references that still appear in older forum posts, so follow the issuer's current procedure rather than a years-old walkthrough. For eligibility details, see CSWP-FS Requirements, and for scheduling mechanics see CSWP-FS Exam Dates.

Note that 2018 is a software compatibility minimum, not an exam-outline year. The live exam page is undated, so treat it as the authority on current scope and re-check it before you book.

The 11 Issuer-Listed Exam Topics

The issuer publishes 11 topics that the exam includes. They are unweighted. The page describes what is covered, not a percentage-based blueprint, so you should not infer that early-listed topics carry more marks or that any single topic is "worth" a fixed number of questions. A full breakdown lives in CSWP-FS Exam Domains: Complete Guide to All 11 Content Areas. Here is how they group in practice.

Fluid and flow definition: Liquids and gas; Internal and external flow simulations

You must choose the right fluid and the right analysis type before anything else works.

  • Select liquids versus gases and understand how the fluid choice changes the study setup.
  • Distinguish internal analyses (flow inside a closed volume, which requires lids over openings) from external analyses (flow around a body in a computational domain).
  • Recognize how an incorrectly closed model produces a study that will not run or yields meaningless results.

System complexity: Multiple inlets or outlets; Mixing of various fluids

Real assemblies rarely have a single in and a single out.

  • Apply boundary conditions to several inlets and outlets without over-constraining the problem.
  • Set up studies where more than one fluid is present and read the resulting concentration or mixing behavior.

Thermal behavior: Conjugated heat transfer; Natural and forced convection

Heat transfer questions connect fluid and solid behavior.

  • Include solid regions in the analysis and assign heat sources so conduction through solids couples with convection in the fluid.
  • Tell natural convection (buoyancy-driven, requiring gravity) from forced convection (driven by a fan or pressure boundary).

Output and workflow: Extracting results; Units; Configurations; Duplicating and editing studies; Controlling mesh size

These topics are where exam-time efficiency is won or lost.

  • Pull force, velocity or pressure values using the correct result tools and the correct reporting units.
  • Work across configurations and clone or modify existing studies rather than rebuilding from scratch.
  • Adjust the mesh deliberately and understand what that does to accuracy and solve time.

What Hands-On Flow Questions Demand

Because the questions are hands-on, memorizing definitions is not enough. A typical task hands you a model, tells you what to change, and asks for a numerical answer to a stated precision. That numerical answer then depends on a chain of correct decisions: fluid, analysis type, boundary conditions, goals, mesh, solve, and extraction. A mistake early in the chain silently corrupts every later step.

Boundary conditions are the main source of silent errors

Most failed attempts trace back to the setup rather than the final read-off. For internal flow you need closed geometry and a consistent pairing of boundary conditions: for example, a prescribed flow at an inlet balanced by a pressure condition at an outlet. Over-specifying both ends with incompatible values, or leaving an opening uncapped, produces errors or wrong answers. For external flow you must size the computational domain sensibly so the body is not artificially confined. Practicing the habit of checking every opening, every lid and every fluid subdomain before pressing Run will pay off more than any amount of rereading theory.

Units and configurations cause avoidable losses

Two of the listed topics, working with various units and working with configurations, sound minor but cost real points. A question may supply data in one unit system and expect an answer in another, or may require you to run the same study on a different configuration of the part. Candidates who rebuild an entire project instead of switching configurations or duplicating a study burn precious minutes. Because the 90-minute clock cannot be paused, workflow speed is a scored skill in practice even though it is not scored directly.

Speed through reuse: Duplicating and editing studies is explicitly listed as an exam topic. Practice cloning a solved study, changing a single boundary condition or fluid, and re-running, because that pattern appears constantly in comparison-style questions.

Extracting results correctly

The exam expects you to extract quantities such as force, velocity or pressure rather than simply admire a colorful plot. Know which result tool reports a surface average versus a minimum or maximum, and know how to confirm your answer against the goal you defined before solving. A plot that looks plausible is not an answer; a reported value with the right units is.

Mesh Size, Solver Time and Result Interpretation

Controlling mesh size is one of the 11 listed topics, and it links directly to the 90-minute limit. A finer mesh generally resolves features better but increases solve time, and on an exam clock a runaway mesh can consume the time you needed for other questions. A coarse mesh solves quickly but can miss thin features, small gaps or steep gradients, giving an answer that is off in ways the plot will not obviously reveal.

The skill being tested is judgment: start with a reasonable automatic mesh, recognize when the geometry has small features that the mesh is not resolving, refine only where it matters, and stop once further refinement no longer meaningfully changes the quantity you were asked for. The finite-volume-method understanding the issuer mentions supports this. If you grasp that the solver divides the domain into cells and balances conserved quantities across them, mesh behavior stops feeling like a black box.

Key Takeaway

Treat mesh refinement as a time budget decision. Before you refine, ask whether the answer you must report depends on a small feature. If it does, refine locally; if it does not, keep the mesh modest and spend your minutes elsewhere.

Flow Simulation vs. Structural Simulation

Candidates sometimes confuse this credential with the structural analysis side of SOLIDWORKS. They are different skill sets. Flow Simulation deals with fluid velocity, pressure, temperature and heat transfer, using a finite-volume approach on a fluid domain. Structural simulation deals with stress, strain and displacement in solid bodies. The two can inform one another in a real project, for instance when fluid pressure loads a part, but this exam is about the fluid and thermal side. If you are weighing it against the structural analysis credential, the right question is which discipline your daily work actually uses, not which sounds more prestigious.

AspectFlow Simulation focus (this exam)Structural simulation focus
Primary physicsFluid flow and heat transferStress, strain and deformation of solids
Typical outputsVelocity, pressure, temperature, force from fluidStress, displacement, safety factors
Key setup concernsBoundary conditions, fluids, mesh, domain closureFixtures, loads, contacts, material behavior

Budgeting: Exam Credit, Software and Training

Keep three cost buckets separate. The exam credit is US$49 per attempt in the North American catalog, and a retake needs another credit. Software is separate: you must supply compatible licensed SOLIDWORKS with Flow Simulation, or a Student Edition. Training is separate again. The issuer recommends the SOLIDWORKS Flow Simulation course and Learning Path as preparation, and the course runs two days. That two-day length is the training format, not the exam timer and not a mandatory training-hours requirement. You can sit the exam without completing the course, since no prerequisite certification is imposed. See CSWP-FS Certification Cost for a full pricing breakdown and CSWP-FS Training for how to choose preparation resources.

Career Value and Who Hires for Flow Skills

The certification signals that you can run a defensible fluid or thermal study, which matters in roles where products move air, liquids or heat: enclosures and electronics cooling, HVAC and ventilation components, valves, pumps and piping, and general product design where thermal or flow behavior drives decisions. Employers in these areas usually care about demonstrated capability, so a certificate paired with project evidence, such as a documented analysis of a real assembly, carries more weight than the certificate alone.

Be cautious about salary claims. There is no verified premium attached to this credential, and any specific figure you see should be treated skeptically. A better approach is to evaluate return on investment through the requirements of the roles you want and the projects you can show. For that framework, read Is the CSWP-FS Certification Worth It?, the CSWP-FS Salary Guide, and CSWP-FS Jobs.

A Domain-Ordered Preparation Plan

Since the issuer does not weight the topics, sequence your preparation by dependency instead: foundations first, then complexity, then speed. This is the only structured schedule in this article, and it is tied to the actual topic list. For broader guidance see the CSWP-FS Study Guide, and for a quick final review the CSWP-FS Cheat Sheet.

Week 1

Setup foundations

  • Liquids and gas selection; internal versus external study creation.
  • Closing models with lids and sizing external domains.
Week 2

Complex flow and thermal

  • Multiple inlets and outlets; mixing of various fluids.
  • Conjugated heat transfer; natural versus forced convection.
Week 3

Output, workflow and mesh

  • Extracting force, velocity and pressure; unit conversions.
  • Configurations, duplicated studies and deliberate mesh control.
Week 4

Timed full runs

  • Complete 13-task practice sets inside 90 minutes.
  • Review every wrong answer back to its setup decision.

For timed rehearsal that mirrors the pressure of the real clock, use the hands-on practice resources at the main practice test site, and revisit the practice tests after each week to see where setup errors still creep in. If you are unsure how demanding the exam will feel, How Hard Is the CSWP-FS Exam? sets realistic expectations, and CSWP-FS Passing Score explains the 70% threshold. Note that published population pass rates were not verified, so 70% is a passing score, not a pass rate; see CSWP-FS Pass Rate for what can and cannot be said.

Frequently Asked Questions

Is CSWP-FS the same as CSWP-Flow?

Yes for this site's purposes. The issuer's public designation for the Flow Simulation exam is SOLIDWORKS Flow Simulation Professional, CSWP-Flow, and this page uses CSWP-FS to refer to that same exam.

How many questions are on the exam and how long do I have?

There are 13 hands-on questions to complete in 90 minutes. The online timer cannot be paused, so plan your pacing before you begin.

What score do I need to pass?

The minimum passing grade is 70%. That figure is the passing threshold, not a published pass rate.

Do I need another certification first?

The general certification FAQ imposes no prerequisite certification for Professional exams. The Flow Simulation course and Learning Path are recommended preparation but are not required.

Does the certificate expire?

According to the issuer's 2020 Certification Program Q&A, customer and student certifications do not expire. Check the current program pages if you need confirmation for your situation.

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