{"id":17663,"date":"2024-04-22T14:59:49","date_gmt":"2024-04-22T18:59:49","guid":{"rendered":"https:\/\/blogs.solidworks.com\/teacher\/?p=17663"},"modified":"2024-04-22T14:59:49","modified_gmt":"2024-04-22T18:59:49","slug":"cfd-lesson-7-solidworks-enclosure-and-3dexperience-fluid-scenario-creation","status":"publish","type":"post","link":"https:\/\/blogs.solidworks.com\/teacher\/2024\/04\/cfd-lesson-7-solidworks-enclosure-and-3dexperience-fluid-scenario-creation.html","title":{"rendered":"CFD Lesson 7: SOLIDWORKS Enclosure and 3DEXPERIENCE Fluid Scenario Creation"},"content":{"rendered":"

After teaching 1000\u2019s of students and writing about SOLIDWORKS for over 25 years, David Planchard, emeritus WPI, is exploring SOLIDWORKS desktop and the integrated 3DEXPERIENCE Platform.\u00a0 Through the 3DEXPERIENCE Works Lesson series, David helps educators understand the 3DEXPERIENCE Engineer, Fluid Scenario Creation App (CFD) with simple examples and industry practices. The Platform offers are available thru your Education Partner (VAR).\u00a0<\/em><\/p>\n

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In this lesson, analyze a simplified electronic enclosure. Evaluate the first iteration of the electronic enclosure to remove heat which is generated by a CPU chip attached to a heat sink on a thin surface. A fan is installed to help dissipate the heat from the enclosure through vented side panels.<\/p>\n

Open the part in SOLIDWORKS. Save the part in your Collaborative space using an existing Bookmark. Return to your SOLIDWORKS desktop. Lock the part. Apply the Fluid Scenario Creation App. Create the FE Model or FEM.<\/p>\n

Define the internal turbulent Fluid Domain of the electronic enclosure. Specify the region for fluid flow. Indicate the openings of the fluid domain. Specify air as the material for the fluid section. This represents the air flow from a fan through the Heat sink.<\/p>\n

Create a Solid Section for the Heat sink and CPU chip. Apply 6061Aluminum alloy as the material for the Heat sink. Apply silicon as the material for the chip.<\/p>\n

Create a customize Hex-Dominant Mesh for the Enclosure. There are always tradeoffs in creating a mesh (capability, time, and accuracy). Currently, the Educational version of Fluid Scenario Creation has a maximum allowable node count of 1million nodes with up to 4 physical cores.<\/p>\n

Use the Sweep 3D Mesh method for the Heat sink and chip. Define two Physics conditions. Create the first physics condition for the fluid and include thermal effects. Use the Realizable k-\u03b5 turbulence model for a more realistic simulation of air flow through the Heat sink. Create the second physics condition for the solid and include only thermal effects.<\/p>\n

Create a steady-state step that represents steady air flow during the simulation.<\/p>\n

Define the boundary conditions of the CPU chip inlet and outlet. Use a fan boundary condition to simulate the effects of adding an intake fan to the simulation. Use a pressure outlet to describe the static pressure at the opening where fluid flows out of the enclosure.<\/p>\n

Run the Simulation study. Use the Physics Results Explorer App. Note<\/strong>: The Simulation should take approximately 35 minutes using 4 CPU cores. Display and review the Gauge Pressure.1, Velocity Vector.1 and Temperature contour plot. Examine the temperature at different points throughout the chip, Heat sink and enclosure using a XY Plot from Path.<\/p>\n

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Before we start, there are a few items that you need to know.<\/p>\n

In this lesson, use your default Collaborative space. An internet connection is required. A 3D<\/strong>EXPERIENCE ID is required.<\/p>\n

The Flow Simulation lesson provides a foundation to users who are new to using simulation to solve real-world engineering and design problems. You should have a basic understanding of flow, pressure, velocity and the Computational Fluid Dynamics (CFD) method.<\/p>\n

Launch the 3DEXPERIENCE Platform and Start SOLIDWORKS<\/h2>\n

3D<\/strong>EXPERIENCE Launcher needs to be installed. 3DEXPERIENCE<\/strong> Works Lesson 1: Getting Started with <\/strong>SOLIDWORKS<\/strong>.<\/a><\/p>\n

The 3D<\/strong>EXPERIENCE platform is browser driven. Your existing cookies and cache determine what you will see on your computer desktop or during a SOLIDWORKS login. A full installation of SOLIDWORKS 2019 SP0 or later is required.<\/p>\n

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Start a SOLIDWORKS session from your desktop.<\/p>\n

Double-click the SOLIDWORKS<\/strong> icon.<\/p>\n

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View the illustration below. Depending on your system setup, cookies, and cache, it will be different. Read the provided information.<\/p>\n

Input<\/strong> the requested data.<\/p>\n

Click Accept All<\/strong>.<\/p>\n

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The Welcome – SOLIDWORKS dialog box is displayed.<\/p>\n

You are logged into the 3D<\/strong>EXPERIENCE platform.<\/p>\n

Close<\/strong> the Welcome dialog box.<\/p>\n

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Click the 3DEXPERIENCE icon<\/strong> in the Task Pane. The MySession panel is displayed. This displays the two-way communication between SOLIDWORKS running on your desktop and the 3D<\/strong>EXPERIENCE platform running in the cloud.<\/p>\n

In this lesson, I\u2019m using a Collaborative space named Quick Start xDesign.<\/p>\n

Note<\/strong>: If you do not see the 3DEXPERIENCE icon, click the Options drop-down arrow, click Add-Ins, check the 3DEXPERIENCE box, click OK, from the SOLIDWORKS Main menu.<\/p>\n

Click Accept All <\/strong>if needed<\/p>\n

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Download the SOLIDWORKS Enclosure Assembly and Save<\/h2>\n

Enclosure assembly<\/a><\/p>\n

Table for Enclosure Assembly<\/a><\/p>\n

Download the SOLIDWORKS Enclosure assembly and MS Excel fan file to follow along with this lesson.<\/p>\n

Open<\/strong> the Enclosure assembly that has not been previously uploaded or saved to the 3D<\/strong>EXPERIENCE platform.<\/p>\n

Expand<\/strong> the Task Pane bar. The MySession panel displays the Components Name, Status (Displays an icon that represents the status of a given revision, save or not saved to the platform), Locked status (Locked or Unlocked), Rev (Revision #), Is Last Revision (Yes\/No), Maturity State (Lifecycle state of the family, for example: Private, In Work, Frozen, Released, Obsolete), Description, File Name (Displays the PLM external ID of the object for reference objects and the PLM external ID of the connection for instances) and Type (Physical Product or Drawing).<\/p>\n

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At this time, they are blank. The orange save Status icon for the Enclosure assembly informs you that the local file on your computer have not been saved to the platform. Save the Enclosure assembly to the 3D<\/strong>EXPERIENCE platform.<\/p>\n

Click Save Active Window<\/strong> from the Lifecycle tab in the Action bar. Note<\/strong>: You can also right-click Enclosure assembly in MySession, and click Save with Options.<\/p>\n

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The file is temporarily being saved to a local cache area. The platform is checking for out of date component, modified component from the last save to the platform, different revisions, missing component, etc.<\/p>\n

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The Save to 3DEXPERIENCE dialog box is displayed. Product lifecycle management (PLM) attributes are displayed. The PLM attributes include: Bookmark locations, Selected Collaborative space, Owner, Title, Saved Status (3DEXPERIENCE), Revision, Maturity Lifecycle State and Collaborative Space name.<\/p>\n

Save the part. Use your existing Collaborative space. Use an existing Bookmark. Note<\/strong>: If needed review 3D<\/strong>EXPERIENCE Works Lesson 3: SOLIDWORKS Bookmarks, Share and Delete<\/a>. Use Bookmarks (links) to delete entire groups of data or just a single file. For assemblies within the Bookmark folder, there is an option to delete the entire structure of the assembly and all reference components.<\/p>\n

Click the Select Bookmark<\/strong> down arrow.<\/p>\n

Click Select Bookmark<\/strong>. The Select a Bookmark dialog box is displayed.<\/p>\n

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In the below example, I selected Design Project 104<\/strong> as my bookmark.<\/p>\n

Click Apply <\/strong>from the Select a Bookmark dialog box.<\/p>\n

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Click Save<\/strong> from the Save to 3DEXPERIENCE dialog box.<\/p>\n

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The Enclosure assembly (Physical product) is directly loaded into your Collaborative space and Bookmarked on the 3D<\/strong>EXPERIENCE platform. You are returned back into your SOLIDWORKS desktop session.<\/p>\n

View the Status column in the updated MySession panel. The Status icon displays a green check mark. This means that the current file on your SOLIDWORKS desktop is updated and saved to the platform. The default Revision is A. The Maturity State is \u201cIn Work\u201d. This is the default Lifecycle state after you saved the model to the 3D<\/strong>EXPERIENCE platform.<\/p>\n

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Lock the Enclosure assembly in the MySession panel. This prevents anyone in making a change to them. The Lock icon is displayed.<\/p>\n

Right-click Enclosure assembly<\/strong>.<\/p>\n

Click Lock<\/strong>. The Enclosure assembly is locked.<\/p>\n

Select Enclosure assembly<\/strong> in the MySession panel.<\/p>\n

Launch Fluid Scenario Creation App<\/h2>\n

Click the center <\/strong>of the Compass. Use the Fluid Scenario Creation App. Think of this App as the SOLIDWORKS Flow Simulation Add-in inside of SOLIDWORKS. Most of the 3D<\/strong>EXPERIENCE Apps run in your web browser. 3D<\/strong>EXPERIENCE Simulation Apps perform a small installation on your windows machine. Both types of Apps are linked to your PLM data on the platform.<\/p>\n

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Drag<\/strong> the slider downward to view the Fluid Scenario Creation App.<\/p>\n

Launch the Fluid Scenario Creation App<\/strong>. If this is your first time using a 3D<\/strong>EXPERIENCE Simulation App, or an update is available, download the needed App information on your computer. It is recommend to restart your SOLIDWORKS session.<\/p>\n

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This can take 10 – 15 seconds.<\/p>\n

The 3DEXPERIENCE | SIMULIA Fluid Scenario Creation App is displayed.<\/p>\n

Create the Fluid Model<\/h2>\n

The Simulation Initialization dialog box is displayed.<\/p>\n

Enter Enclosure_Chip <\/strong>for Simulation title.<\/p>\n

Select Create fluid model<\/strong> for Fluid model type.<\/p>\n

Enter FEM_ChipHT<\/strong> for Fluid model name.<\/p>\n

Accept the defaults. Analysis type: Steady-state and 2000 for Maximum iterations.<\/p>\n

Click OK<\/strong> from the Simulation Initialization dialog box.<\/p>\n

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The Fluid Scenario Creation App creates the following features and displays them in the tree:<\/p>\n