Cold Plate Modeling with Ansys Icepak AEDT

Hello, my name is Mert Berkman. I work with Ozen Engineering, Inc. and today I have an interesting video. I'm going to be talking about the newer version of AEDT IcePak, an ANSYS tool for thermal analysis.

Introduction

In this tutorial, we will consider a cold plate problem featuring both external natural convection and internal forced convection. We will model a water-cooled plate from scratch in a simple way, using a thermal plate to measure the temperature of the liquid modeling. This thermal plate will help us compare the cold plate and ice plate municipalities and expedite our work.

Model Building

Step 1: Define the Cold Plate

1. Start by inserting a block using the draw box button.
2. Define the cold plate dimensions:
   • Start Position: 50mm, 80mm by 70mm
   • X Size: 300mm
   • Y Size: 140mm
   • Z Size: 60mm
3. Hit OK to create the box representing the cold plate.

Step 2: Add Cylindrical Pipes

1. Draw a cylinder with:
   • Center Point: 100mm by 0mm by 100mm
   • Radius: 15mm
   • Height: 90mm
2. Add a second cylinder, shifting it further down the X-axis with the same radius and height.

Step 3: Unite Objects

1. Select the box and both cylinders using the control button.
2. Click "Unite Objects" to merge them into a single box.
3. Rename the box to "Cold Plate" and hide it from view.

Step 4: Add Water Air Solid

1. Create a new box or prism starting at 60mm, 90mm, 80mm with slightly smaller dimensions than the cold plate.
2. Add inlet and outlet ports using cylinders with:
   • Center Point: 100mm, 0mm, 100mm
   • Radius: 10mm
   • Height: 90mm
3. Unite these objects and rename the box to "Water".
4. Change the material to water at room temperature.

Step 5: Add Heat Source

1. Add a rectangular plate as a heat source with:
   • Position: Lies in the Z plane
   • Length: 260mm
   • Width: 100mm
2. Adjust dimensions and position as necessary.
3. Add a second plate on the opposite side of the cooling system.

Boundary Conditions and Meshing

Step 6: Assign Boundary Conditions

1. Assign thermal conditions to the plates:
   • Conducting Plate with 10mm thickness
   • Total Power Generation: 200 watts
2. Adjust enclosure size for natural convection in the X direction.
3. Assign mass flow inlet and outlet for water:
   • Inlet Temperature: Ambient
   • Velocity: 0.2 m/s
   • Outlet: Ambient pressure
4. Assign pressure-type boundary conditions for air region.

Step 7: Meshing

1. Use the simplest meshing option for the geometry.
2. Generate the mesh and save the project.
3. Check mesh quality and adjust if necessary.

Simulation Setup

Step 8: Design Settings

1. Define operating conditions:
   • Ambient Temperature: 20°C
   • Gauge Pressure: 0
   • Gravity Vector: Negative X direction

Step 9: Simulation Setup

1. Set up physics and numeric parameters:
   • Iterations: 300
   • Solving for Temperature and Flow
   • Turn on Turbulence and Radiation
   • Include Gravity
2. Define convergence criteria and solver settings.

Step 10: Monitor Setup

1. Assign monitors to track key values:
   • Mass Flow Rate for Water
   • Maximum Temperature on Conducting Plates

Execution and Post-Processing

Step 11: Execute the Model

1. Validate the setup and run the simulation.
2. Monitor progress and ensure successful solution.

Step 12: Post-Processing

1. Review solution data and residuals for convergence.
2. Use toolkit for contour and vector analysis.
3. Plot temperature on surfaces and analyze results.

Thank you for your interest in this demonstration.