Application Article: Modeling Large Structures in EM.Tempo - Revision history

Shatch at 21:07, 10 October 2016

2016-10-10T21:07:28Z

2016-10-10T21:04:35Z

‎Simulation

2016-10-10T21:02:49Z

‎Simulation

2016-10-10T20:59:52Z

‎Simulation

2016-10-10T20:59:09Z

‎Simulation

2016-10-10T20:58:02Z

‎Simulation

2016-10-10T20:57:05Z

‎Simulation

2016-10-10T20:56:44Z

‎Simulation

2016-10-10T15:37:09Z

‎Introduction

2016-10-10T15:24:55Z

‎Project Setup

@@ Line 22: / Line 22: @@
 The CAD model used for this simulation was found on [https://grabcad.com/ GrabCAD], an online repository of user-contributed CAD files and models.  [[EM.Cube]]'s IGES import was then used to import the model.  Once we import the model, we move the Mirage to a new PEC material group in [[EM.Tempo]].
-[[Image:glass.png ‎‎|thumb|left|200px|Selecting glass as cockpit material for the Mirage model.]]
+<div><ul>
 For the present simulation, we model the entirety of the aircraft, except for the cockpit, as PEC.  For the cockpit, we use [[EM.Cube]]'s material database to select a glass of our choosing.

@@ Line 80: / Line 80: @@
 <div><ul>
-<li style="display: inline-block;"> [[Image:RCS XY.png‎|thumb|left|300px|YZ cut of RCS in m^2.]]</li>
+<li style="display: inline-block;"> [[Image:RCS XY.png‎|thumb|left|300px|XY cut of RCS]]</li>
-<li style="display: inline-block;"> [[Image:RCS ZX.png‎|thumb|left|300px|YZ cut of RCS in m^2.]]</li>
+<li style="display: inline-block;"> [[Image:RCS ZX.png‎|thumb|left|300px|ZX cut of RCS]]</li>
-<li style="display: inline-block;"> [[Image:Large struct article RCS YZ.png‎|thumb|left|300px|YZ cut of RCS in m^2.]]</li>
+<li style="display: inline-block;"> [[Image:Large struct article RCS YZ.png‎|thumb|left|300px|YZ cut of RCS]]</li>
 </ul></div>

@@ Line 77: / Line 77: @@
 [[Image:Large struct article ScreenCapture3.png|thumb|left|300px|RCS pattern of the Mirage model at 850 MHz in dBsm.]]
   </li>
 <li style="display: inline-block;"> [[Image:Large struct article RCS YZ.png‎|thumb|left|300px|YZ cut of RCS in m^2.]]</li>
 </ul></div>

@@ Line 83: / Line 83: @@
 <div><ul>
-<li style="display: inline-block;"> [[Image:Large struct article ScreenCapture1.png|thumb|left|300px|RCS pattern of the Mirage model at 850 MHz in dBsm.]]</li>
+<li style="display: inline-block;"> [[Image:Large struct article ScreenCapture1.png|thumb|left|300px]]</li>
-<li style="display: inline-block;"> [[Image:Large struct article ScreenCapture2.png|thumb|left|300px|RCS pattern of the Mirage model at 850 MHz in dBsm.]]</li>
+<li style="display: inline-block;"> [[Image:Large struct article ScreenCapture2.png|thumb|left|300px]]</li>
 </ul></div>
 <div><ul>
-<li style="display: inline-block;"> [[Image:RCS XY Polar.png||thumb|left|400px| XY Cut of RCS is dBsm]]</li>
+<li style="display: inline-block;"> [[Image:RCS XY Polar.png||thumb|left|300px| XY Cut of RCS is dBsm]]</li>
-<li style="display: inline-block;"> [[Image:RCS ZX Polar.png||thumb|left|400px| ZX Cut of RCS is dBsm]] </li>
+<li style="display: inline-block;"> [[Image:RCS ZX Polar.png||thumb|left|300px| ZX Cut of RCS is dBsm]] </li>
-<li style="display: inline-block;"> [[Image:RCS YZ Polar.png||thumb|left|400px| YZ Cut of RCS is dBsm]] </li>
+<li style="display: inline-block;"> [[Image:RCS YZ Polar.png||thumb|left|300px| YZ Cut of RCS is dBsm]] </li>
 </ul></div>

← Older revision		Revision as of 20:59, 10 October 2016
Line 81:		Line 81:

	The nearfield visualizations are also available as seen below:		The nearfield visualizations are also available as seen below:
		+
		+	<div><ul>
		+	<li style="display: inline-block;"> [[Image:Large struct article ScreenCapture1.png\|thumb\|left\|300px\|RCS pattern of the Mirage model at 850 MHz in dBsm.]]</li>
		+	<li style="display: inline-block;"> [[Image:Large struct article ScreenCapture2.png\|thumb\|left\|300px\|RCS pattern of the Mirage model at 850 MHz in dBsm.]]</li>
		+	</ul></div>

	<div><ul>		<div><ul>

@@ Line 83: / Line 83: @@
 <div><ul>
-<li style="display: inline-block;"> [[RCS XY Polar.png||thumb|left|300px]]</li>
+<li style="display: inline-block;"> [[Image:RCS XY Polar.png||thumb|left|300px]]</li>
-<li style="display: inline-block;"> [[RCS ZX Polar.png||thumb|left|300px]] </li>
+<li style="display: inline-block;"> [[Image:RCS ZX Polar.png||thumb|left|300px]] </li>
-<li style="display: inline-block;"> [[RCS YZ Polar.png||thumb|left|300px]] </li>
+<li style="display: inline-block;"> [[Image:RCS YZ Polar.png||thumb|left|300px]] </li>
 </ul></div>

← Older revision		Revision as of 15:37, 10 October 2016
Line 9:		Line 9:

	In this article, we will compute the bi-static radar cross-section (RCS) of a Dassault Mirage III type fighter aircraft at 850 MHz with [[EM.Tempo]]. Throughout the article, we will discuss a few challenges involved in working with electrically-large models.		In this article, we will compute the bi-static radar cross-section (RCS) of a Dassault Mirage III type fighter aircraft at 850 MHz with [[EM.Tempo]]. Throughout the article, we will discuss a few challenges involved in working with electrically-large models.
		+
		+	{{Note\| For an in-depth tutorial related to computing RCS in [[EM.Tempo]], please review [[EM.Tempo Tutorial Lesson 2: Analyzing Scattering From A Sphere]]}}

	== Computational Environment ==		== Computational Environment ==

@@ Line 40: / Line 40: @@
 Since we're computing a Radar Cross Section, we also need to add a planewave source.  For this example, we will specify a TMz planewave with &#952; = 135 degrees, &#966; = 0 degrees, or:
-:<math> \hat{k} = \sqrt{2}/2 \hat{x} - \sqrt{2}/2 \hat{z} </math>
+:<math> \hat{k} = \frac{\sqrt{2}}{2} \hat{x} - \frac{\sqrt{2}}{2} \hat{z} </math>
 ===Mesh Settings===