シャドーイング練習: Transient Thermal Analysis in ANSYS AIM - 動画で英語スピーキングを学ぶ
レッスンを作成中...
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Hello and welcome to this demonstration of ANSYS AIM.
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Today we will be performing a transient thermal analysis of a frying pan that is heated on a stove with natural convection.
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The heat flow into the pan will be 250 watts,
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with a convection coefficient of 20 watts per meter squared degrees Celsius which will act as the natural convection of the pan.
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We want to find out is the time it takes for the max temperature to reach 100 degrees Celsius
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and approximately when steady state is reached.
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With AIM pulled up, we will now begin our analysis.
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We will do a transient thermal analysis and to do this, We will select the simulation process template, thermal.
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AIM will now start creating the template To do so, we first will need to import existing geometry.
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We'll uncheck the allow model editing because we won't need that.
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And then since we're doing a transient analysis, we want to do a time -dependent calculation type.
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Since there is only one part to our analysis, we will turn off detect contact automatically as well.
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With all these options selected, we are now ready to create the simulation process.
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AIM is now asking us to select the geometry.
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We'll select the geometry up here, frying pan, and then select open.
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Now that we have our geometry imported, we'll want to select our unit system.
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I'll go up into the Project menu, go down to Units, and select the metric system.
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Next, we will go to meshing.
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I'll go ahead and click on "Mesh" in the simulation process data panel.
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we can use predefined settings But let's go down into the global sizing.
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I'm going to set it to curvature which will help with meshing for circular geometry.
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For instance, these fillet radii on my frying pan.
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I'll now go ahead and push the blue lightning bolt, which will update and start generating my mesh.
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Now that the mesh is finished, you can see that Along those curvatures, the mesh is more refined.
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This is to better capture that geometry.
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Thank you.
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Next, we will want to set up our boundary conditions or thermal conditions for our analysis.
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we'll go down to the View panel and click on the Physics tab.
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Thank you.
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From here, We can go up into the Physics Data panel And set our Analysis settings.
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We are performing a time -dependent analysis, which means a transient thermal analysis, For duration, I'll go ahead and type in about 30 minutes.
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That should give us plenty of time to see when steady state will occur.
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That's 1800 seconds.
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Thank you.
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Our physics region is our pan, which is already being defined, Now we will need to define our material assignments.
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I'll click on material assignments.
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And currently it's set to structural steel.
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I actually want to set it to cast iron.
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I can either type in cast iron or I can go find it in the list here.
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I'll select cast iron.
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and that will apply that material property to my frying pan.
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If I want to see or check on the material properties, I can click on this drop down arrow next to the cast iron.
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This is where I will verify my material properties.
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I'll next want to go back to the Physics tab.
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and continue down the list of items that I need.
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Next, I'll be adding my thermal boundary conditions.
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So I can click on this Add button.
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and what we want first is heat flow.
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So I'll select that.
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The HEATFO data panel Pull up.
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and it'll ask me to define a location.
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I can go and click in the box, Then since the stove top will be underneath my pan, I can select the bottom there.
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To confirm this selection, I'll hit the plus sign next to the location.
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I'll next need to define the magnitude of the heat flow.
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This will be 250 watts.
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I also want to apply convection to my model.
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so I can click "Next Step" Add.
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I go to solid thermal conditions.
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and then I'll select Convection.
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Thank you.
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So I want to basically apply my convection to everywhere else in the model except for where I applied the heat flow.
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So to do this, I can right -click, and then use the Select All feature.
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I don't want all the faces to be selected.
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So I'll go ahead and deselect the face where the heat flow is applied.
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To confirm the selection, again I'll go back up to the plus sign, and add the selected entities.
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Thank you.
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heat transfer coefficient that all apply is 20 watts per meter squared degrees Celsius.
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and then the convection temperature which is basically your environment temperature, I'll just set at room temperature, which is 22 degrees Celsius.
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I can then go back to my Physics tab, and everything else I'll leave as default.
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I'm now ready.
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to solve my analysis.
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To solve, I can right -click on this Physics tab, and select update.
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Now that the solution is done solving, I can go to my Results section.
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I'll click on the results tab.
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In the Results tab, You'll notice that there are already predefined results.
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by clicking the drop -down arrow next to the results in the data panel, I'll see that there's a contour plot here.
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This is the contour of a temperature plot.
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I can go ahead and click on that.
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and you'll notice that it says that it's out of date.
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What I want to do next is just click the lightning bolt to evaluate these results.
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I can now take a look at my contour plots.
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You can see that the maximum temperature is slightly above 150 degrees Celsius.
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One of the objects that we had in the analysis was to determine about what time
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the temperature reached above 100 degrees Celsius.
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we can click the right arrow besides the calculated maximum and choose to plot this.
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I'll go over to the chart and expand it so that it has a full window view.
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So now we can find at what point The temperature reached 100 degrees Celsius.
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We'll go over to 100 degrees Celsius and follow that datum all the way to where it crosses our curve.
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This is at about 300 seconds.
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We can also determine when our analysis reaches steady state by looking at when our temperature plot flattens out.
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This is at about 1500 seconds.
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This concludes...
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The ANSYS -AIM transient thermal analysis.
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Thank you. and goodbye.
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このレッスンについて
「Transient Thermal Analysis in ANSYS AIM」を使って、シャドーイングで英語を練習しましょう。
毎日15〜30分の練習で、IELTSスピーキングへの自信と実践的な英会話力が身につきます。
この動画の文法
話し手がよく使っている文型を、動画の実際の表現とともに紹介します。
| 文型 | 動画での表現 |
|---|---|
| 受動態 be + 過去分詞 — 誰がするかより、何が起きるかに焦点を当てる | is heated · is reached · is finished |
| 関係詞節 who / which + 節 — 人や物について情報を加える | Celsius which will · curvature which will · bolt, which will |
シャドーイングとは？英語上達に効果的な理由
シャドーイング（Shadowing）は、もともとプロの通訳者養成プログラムで開発された言語学習法で、多言語習得者として知られるDr. Alexander Arguelles によって広く普及されました。方法はシンプルですが非常に効果的：ネイティブスピーカーの英語を聞きながら、1〜2秒の遅延で声に出してすぐに繰り返す——まるで「影（shadow）」のように話者を追いかけます。文法ドリルや受動的なリスニングと異なり、シャドーイングは脳と口の筋肉が同時にリアルタイムで英語を処理・再現することを強制します。研究により、発音精度、抑揚、リズム、連音、リスニング力、そして会話の流暢さが大幅に向上することが確認されています。IELTSスピーキング対策や自然な英語コミュニケーションを目指す方に特におすすめです。